Salinity effects on nutrient uptake dynamics in hydroponically grown crops

Sebastian Heintze - Germany 2024 -

Funds

Projects

PureCircles Project - PRIMA -  Maximizing Resource Use Efficiency in the Water-Nutrient-Energy Nexus for Sustainable Agriculture in Marginal Lands
(06-2023 - 11-2026)

Paper

Publications

Heintze, S.; Beckett, M.; Kriem, L.S.; Germer, J.; Asch, F.  2024. A low-tech approach to mobilize nutrients from organic residues to produce bioponic stock solutions, Agriculture 14, 928. https://doi.org/10.3390/agriculture14060928

Talks

Poster

Students

People

Auswirkungen des Ammonium/Nitrat Verhältnises  in der Nährlösung auf die Photosyntheserate hydroponisch wachsender Quinoa
Bachelor of Science Thesis, Lukas Liesenfeld [Germany]

Salinity effects on nutrient uptake dynamics in hydroponically grown crops

Hemanth Puppala - India 2022 -

Funds

Projects

EXALT Project - BMBF -  Coupling thermal desalination and dewatered salt discharge with hydroponic crop production using heat pumps. Water Research in the Near and Middle East (MEWAC) 2022 - 2025

Paper

Publications

Talks

Poster

Students

People

Effects of root zone salinity and VPD on growth and ion distribution dynamics in hydroponically-grown Solanum lycopersicum L.
Master of Science Thesis, Gawasker Gandamalla [India]

Auswirkungen unterschiedlicher Lichtquellen auf die Temperaturumwelt, das Wachstum und die Evapotranspiration hydroponisch wachsender Quinoa
Bachelor of Science Thesis, Steffen Rauchenberger [Germany]

Influence of air humidity and salt stress on growth and nutrient uptake of hydroponically grown quinoa and eggplant
Bachelor of Science Thesis, Alexandra Schmidt [Germany]

Einfluss von Lichtqualität und Infrarotstrahlung auf die  Nährstoffaufnahmeraten von hydroponisch wachsenden Tomaten.
Bachelor of Science Thesis, Marc Münst [Germany]

Einfluss von Luftfeuchtigkeit und Salzstress auf die Nährstoffaufnahmeraten von hydroponisch wachsender Quinoa.
Bachelor of Science Thesis, Gabriel Ahlenstorf [Namibia]

Regulierung des Nährlösungs-pH-Wertes mittels automatisch dosiertem NH₄^- oder NO₃⁺ in hydroponisch wachsenden Tomaten.
Bachelor of Science Thesis, Greta Geltinger [Germany]

Effekte der Lichtqualität auf die Wachstumsphysiologie von zwei Tomatensorten
Bachelor of Science Thesis, Ann Sophie Bernhard [Germany]

Modelling of sweet potato responses to salinity

Johanna Volk - Germany 2021 -

Funds

Projects

ATSAF Academy - CIP -  Model-supported identification of phenotypic traits and development of a field-based screening tool for salinity tolerant sweet potato clones 2021-2024

Paper

Publications

Talks

Poster

Students

People

Evaluation of side branch morphology and physiology of sweetpotato clones grown under salinity
Master of Science Thesis, Dhruv Patel [India]
supported by ATSAF-CGIAR Junior Scientist Program

Effects of potassium fertilizer on physiological and morphological responses to soil salinity in field-grown sweetpotato
Master of Science Thesis, Jane Cypriyana [India]
supported by ATSAF-CGIAR Junior Scientist Program

Phenology effects on the responses of field-grown sweetpotato varieties to root zone salinity kinetics.
Master of Science Thesis, Theresa Schilberth [Germany]
supported by ATSAF-CGIAR Junior Scientist Program

Responses of morphological and physiological traits to root zone salinity kinetics in six field-grown sweetpotato varieties.
Master of Science Thesis, Eugenio Giacopelli [Italy]
supported by ATSAF-CGIAR Junior Scientist Program

Auswirkungen unterschiedlicher Kaliumdüngung auf die Salzstressantwort von Süßkartoffel.
Bachelor of Science Thesis, Magnus Kempfle [Germany]

Auswirkungen dynamischen Salzstresses auf die Aufnahme und Verteilung von Natrium und Kalium in zwei kontrastierenden Süßkartoffelsorten
Bachelor of Science Thesis, Alexander Meierhöfer [Germany]

Effects of dynamic soil salinity on two contrasting sweet potato clones from Mozambique
Bachelor of Science Thesis, Noah Fleidl [Germany]

Remote sensing of photo protective pigments in climate change adapted wheat genotypes

Geckem Dambo - Malawi 2021 -

Funds

Projects

ATSAF Academy - CIMMYT -  Remotely sensed spectral indices as indicators of climate resilience in a wheat breeding context.  2021-2024

Paper

Publications

Talks

Poster

Students

People

Genotype x Environment effects on leaf properties and pigment composition in tropical bread wheat
Master of Science Thesis, Deena Thankachan [India]
  supported by ATSAF-CGIAR Junior Scientist Program

Genotypspezifische Antocyane in Blättern kontrastierender Weizensorten
Bachelor of Science Thesis, Helene Schwertheim [Germany]

Effects of VPD and drought on leaf properties and pigment composition in tropical bread wheat.
Master of Science Thesis, Christian Büser [Germany]

Analyses of genotypic differences in content and composition of photo-protective pigments in wheat
Master of Science Thesis, Daniel Welter [Germany]

Genotype x Environment effects on leaf properties and pigment composition in tropical bread wheat.
Master of Science Thesis, Ilaria Parente [Italy]
supported by ATSAF-CGIAR Junior Scientist Program

Einfluss atmosphärischer Dürre auf die Pigmentzusammensetzung und Lichtadaptation von Weizenblättern.
Bachelor of Science Thesis, Andree Guhl [Germany]

Einfluss atmosphärischer und bodenbürtiger Dürre auf die Pigmentzusammensetzung und Lichtadaptation von Weizenblättern.
Bachelor of Science Thesis, Tom Siegel [Germany]

Photoprotektive Pigmente in Weizen
Bachelor of Science Thesis, Jana Beck [Germany]

Nutrient uptake and growth of hydroponically cultivated crops under variable environmental conditions

Theresa Detering - Germany 2021 -

Funds

Projects

Scholarship from the Anton and Petra Ehrmann Research Training Group "Water - People - Agriculture"

HypoWave+ -  Implementierung eines hydroponischen Systems als nachhaltige Innovation zur ressourceneffizienten landwirtschaftlichen Wasserwiederverwendung. BMBF 2021-2023

Paper

Publications

Talks

Poster

Students

People

Auswirkungen von Stickstoffverarmung auf die Photosyntheseraten hydroponisch wachsender Tomaten
Bachelor of Science Thesis, Ingo Appenzeller [Germany]

Effects of root zone temperature on nutrient depletion dynamics and growth performance of hydroponically grown Tomato.
Master of Science Thesis, Susanne Werner [Germany]

Einfluss unterschiedlicher Wurzelraumtemperaturen auf die Nährstoffaufnahmeraten von hydroponisch wachsenden Tomaten.
Bachelor of Science Thesis, Felix Köhler [Germany]

Einfluss der Lichtintensität bei gleichbleibender Nitratgabe auf die Kalium- und Kalziumaufnahme von hydroponisch-wachsenden Tomaten.
Bachelor of Science Thesis, Emilia Fischer [Germany]

Einfluss von Nitratgabe bei gleichbleibender Lichtintensität auf die Kalium- und Kalziumaufnahme von hydroponisch-wachsenden Tomaten.
Bachelor of Science Thesis, Zoe Rühlmann [Germany]

Effects of land-use change on salt intrusion in rice production systems in the Vietnam Mekong Delta

Nguyen Hong Van - Vietnam 2019 - 2023

Funds

Projects

RiSaWa -  Rice production caught between salinity and drought – future options for sustainable use of water in the Mekong Delta region. BMBF 2018-2021

Paper

Publications

Nguyen, V. H., Germer, J.,  Asch, F. 2024. Evaluating topsoil salinity via geophysical methods in rice production systems in the Vietnam Mekong Delta. Journal of Agronomy and Crop Science 210, e12676, https://dx.doi.org/10.1111/jac.12676

Nguyen, V. H., Germer, J., Nha, D.V., Asch, F. 2023. Soil resistivity measurements to evaluate subsoil salinity in rice production systems of the Vietnam Mekong Delta. Near Surface Geophysics 21, 288-299. https://doi.org/10.1002/nsg.12260

Talks

Poster

Nguyen, V.H., Asch, F., Germer, J., Duong, V.N. 2020.
"Applying geo-electric methods to investigate soil salinity in rice production systems in the Vietnam Mekong Delta".
Tropentag 2020: Food and nutrition security and its resilience to global crises, Tielkes, E. (ed.) - Witzenhausen, DITSL

Students

People

Varietal effects of rice on greenhouse gas emission under varying water management in the Vietnam Mekong Delta

Vo Thi Bach Thuong - Vietnam 2019 - 2023

Funds

Projects

Scholarship from the DAAD within the International PhD Programme „Agricultural Economics and Related Science“

International Rice Research Institute - IRRI

RiSaWa -  Rice production caught between salinity and drought – future options for sustainable use of water in the Mekong Delta region. BMBF 2018-2021

Paper

Publications

Vo, T.B.T., Johnson, K., Wassmann, R., Sander, O., Asch, F. 2024. Varietal effects on Greenhouse Gas emissions from rice production systems under different water management in the Vietnamese Mekong Delta. Journal of Agronomy and Crop Science 210, e12669, https://doi.org/10.1111/jac.12669

Asch, F.,Johnson, K., Vo, T.B.T., Sander, O., Duong, V.N., Wassmann, R. 2023. Varietal effects on methane intensity of paddy fields under different irrigation management. Journal of Agronomy and Crop Science 209, 876-886. http://doi.org/10.1111/jac.12662.

Wassmann, R., Nelson, K., Bui, Y.T., Nguyen-Van-Hung, Gummert, M., Asch, F., Vo, T.B.T., Butterbach-Bahl, K., Kiese, R., Janz, B., Mai, T.V., Sander, B.O. 2023. Context-specific Assessments of Carbon Footprints of the Rice Value Chain: From Product-Labelling to Potential Mitigation Impacts. The International Journal of Life Cycle Assessment. https://doi.org/10.1007/s11367-023-02176-8

Vo, T.B.T., Wassmann, R., Mai, V.T., Vu, D.Q., Bui, T.P.L., Vu, T.H., Dinh, Q.H., Yen, B.T., Asch, F., Sander, B.O. 2020.
Methane Emission Factors from Vietnamese Rice Production: Pooling Data of 36 Field Sites for Meta-analysis. Climate 8 (6), 74. https://doi.org/10.3390/cli8060074.

Talks

Poster

Vo, T.B.T., Asch, F., Wassmann, R., Sander, B.O. 2021.
"Zonal and Seasonal Methane Emissions from Rice Production in the Vietnamese Mekong Delta"
Tropentag 2020: Food and nutrition security and its resilience to global crises, Tielkes, E. (ed.) - Witzenhausen, DITSL

Detering, T., Vo, T.B.T., Wassmann, R., Sander, B.O., Asch, F. 2020.
"Methane emissions of different Rice Varieties: Diurnal emission patterns of three development stages".
Tropentag 2020: Food and nutrition security and its resilience to global crises, Tielkes, E. (ed.) - Witzenhausen, DITSL

Students

People

Varietal effects in rice on greenhouse gas emissions under varying water management.
Master of Science Thesis, Theresa Detering, [Germany]
supported by ATSAF-CGIAR Junior Scientist Program

Interactive effects of water saving irrigation and salinity on rice gentypes in the Mekong delta

Kristian Johnson - United States of America 2019 - 2023

Funds

Projects

Scholarship from the Anton and Petra Ehrmann Research Training Group "Water - People - Agriculture"

RiSaWa -  Rice production caught between salinity and drought – future options for sustainable use of water in the Mekong Delta region. BMBF 2018-2021

Paper

Publications

Johnson, K., Vu, H. D., Asch, F. 2024. Traits contributing to salinity tolerance in rice genotypes from the Mekong Delta. Journal of Agronomy and Crop Science 210, e12679, https://dx.doi.org/10.1111/jac.12679

Vo, T.B.T., Johnson, K., Wassmann, R., Sander, O., Asch, F. 2024. Varietal effects on Greenhouse Gas emissions from rice production systems under different water management in the Vietnamese Mekong Delta. Journal of Agronomy and Crop Science 210, e12669, https://doi.org/10.1111/jac.12669

Asch, F.,Johnson, K., Vo, T.B.T., Sander, O., Duong, V.N., Wassmann, R. 2023. Varietal effects on methane intensity of paddy fields under different irrigation management. Journal of Agronomy and Crop Science 209, 876-886. http://doi.org/10.1111/jac.12662.

Johnson, K., Vo, T.B.T., Asch, F. 2023. Genotypic responses of rice to alternate wetting and drying irrigation in the Mekong Delta. Journal of Agronomy and Crop Science. http://doi.org/10.1111/jac.12649

Asch, J., Johnson, K., Mondal, S., Asch, F. 2022.  Comprehensive assessment of extraction methods for plant tissue samples for determining sodium and potassium via flame photometer and chloride via automated flow analysis. Journal of Plant Nutrition and Soil Science, open access. https://doi.org/10.1002/jpln.202100344

Talks

Johnson, K. 2020.
"Reserve Mobilisation, Dry Matter Partitioning, and K/Na Ratio of Rice (Oryza sativa) Seedlings in Response to Varying Levels of Salt Stress".
Tropentag 2020: Food and nutrition security and its resilience to global crises, Tielkes, E. (ed.) - Witzenhausen, DITSL

Poster

Mengen, A. T., Johnson, K., Asch, F., 2021.
"Effects of halo- and hydro priming on early rice seedling vigor under salinity"
Tropentag 2021: Food and nutrition security and its resilience to global crises, Tielkes, E. (ed.) - Hohenheim, Germany

Students

People

Screening a Mekong Delta set off lowland rice varieties for tolerance to water deficit
Master of Science Thesis, Ravindra Reddy [India]

Effect of seed priming on early seedling vigor of rice genotypes grown under salinity.
Bachelor of Science Thesis, Tabea Mengen [Germany]

Salinity effects on sweet potato

Shimul Mondal - Bangladesh 2018 - 2023

Funds

Projects

Strengthening food system resilience in Asia’s mega deltas with salt tolerant sweetpotato and potato BMZ 2018-2020

Stipend from Bangladesh Government

Paper

Publications

Mondal, S., Rahman, E.H., Asch, F. 2024. Ion uptake and distribution in sweet potato genotypes subjected to salt stress is not driven by transpiration. Journal of Agronomy and Crop Science 210, e12673, https://doi.org/10.1111/jac.12673

Mondal, S., Burgert, S., Asch, J., Rahman, E.H., Asch, F. 2023. Salinity effects on the activities of ROS scavenging enzymes in leaves of two sweet potato clones. Journal of Agronomy and Crop Science. https://doi.org/10.1111/jac.12657

Mondal, S., Rahaman, E. H. M. S., Asch, F. 2022. Potassium content is the main driver for salinity tolerance in sweet potato before tuber formation. Journal of Agronomy and Crop Science, https://doi.org/10.1111/jac.12599

Asch, J., Johnson, K., Mondal, S., Asch, F. 2022.  Comprehensive assessment of extraction methods for plant tissue samples for determining sodium and potassium via flame photometer and chloride via automated flow analysis. Journal of Plant Nutrition and Soil Science, open access. https://doi.org/10.1002/jpln.202100344

Talks

Poster

Mondal, S., Rahman, E. H. M. S., Asch, F., 2022.
"Water uptake does not drive sodium and chlorine uptake in sweetpotato genotypes exposed to salt stress"
Tropentag 2022: Can Agroecological Farming Feed the World, Tielkes, E. (ed.) - Prague, Czech Republic

Mondal, S.,  Rahman, E. H. M. S., Asch, F., 2021.
"Physiological responses and ion accumulation of twelve sweetpotato clones subjected to salinity"
Tropentag 2021: Food and nutrition security and its resilience to global crises, Tielkes, E. (ed.) - Hohenheim, Germany

Mondal, S., Burgert, S., Hartmann, J., Rahman, E. H. M. S., Asch, F., 2020.
"Salinity effects on the activities of ROS scavenging enzymes in leaves of two Sweet potato clones"
Tropentag 2020: Food and nutrition security and its resilience to global crises, Tielkes, E. (ed.) - Witzenhausen, DITSL

Students

People

Effect of VPD and salinity on the transpiration rate of sweet potato leaves varying in age
Bachelor of Science Thesis, Marc Neuberger [Germany]

VPD and salinity effects on leaf area development and stomatal conductance in contrasting sweet potato clones
Master of Science Thesis Hemanth Kumar Pupalla [India]

Tagesrhythmen in Transpiration und Photosynthese von Süßkartoffelblättern in Abhängigkeit von Salzstress, relativer Luftfeuchtigkeit und Blattalter
Bachelor of Science Thesis, Carlotta Muhle [Germany]

Transpiration und Photosynthese von Süßkartoffelblättern in Abhängigkeit von Salzstress, relativer Luftfeuchtigkeit und Blattalter
Bachelor of Science Thesis, Loraine Pesch [Germany]

Einfluss von Salzstress und VPD auf die Transpiration von Süßkartoffelsorten
Bachelor of Science Thesis, Marielies Schopfhauser [Austria]

Einfluss von Salzstress auf die physiologische Aktivität von Bälttern unterschiedlichen Alters bei der Süßkartoffel.
Bachelor of Science Thesis, Susanne Burgert, [Germany]

Einfluss von VPD auf die Ionenaufname und Verteilung bei Süßkartoffel unter Salzstress.
Bachelor of Science Thesis, Linda Mvogo-Binelli, [Germany]

Auswirkungen von Salzstress auf die enzymatische Sauerstoffradikalentgiftung in Kartoffelblättern
Bachelor of Science Thesis, Ines Münchinger [Germany]

Bacterial mitigation of iron toxicity symptoms in rice

Tanja Weinand - Germany 2018 -

Funds

Projects

Universität Hohenheim und Universität Tübingen - Afrika Initiative

Paper

Publications

Weinand, T., El-Hasan, A., Asch, F. 2023. Role of Bacillus spp. Plant Growth Promoting Properties in Mitigating Biotic and Abiotic Stresses in Lowland Rice (Oryza sativa L.). Microorganisms 2023, 11(9), 2327. https://doi.org/10.3390/microorganisms11092327

Weinand, T. Asch, J., Asch, F. 2023. Effects of endophytic Bacillus spp. on uptake and distribution of iron in lowland rice grown under iron toxic conditions. Journal of Plant Nutrition and Soil Science, 186, 351-363. https://doi.org/10.1002/jpln.202200426

Dimpka, C., Weinand, T., Asch, F., 2009
Plant–rhizobacteria interactions alleviate abiotic stress conditions. Plant, Cell, and Environment 32, 1682-1694.

Talks

Poster

Weinand, T., Asch, J., Asch, F. 2022. "Effect of Bacillus spp. on enzyme activity and potassium uptake in lowland rice (Oryza sativa) under iron toxicity.". Tropentag conference 2022, September 14-16, Czech University of Life Sciences Prague, Czech Republic.

Weinand, T., Schierling, T., Asch, J., Kaufmann, B., El-Hasan, A., Voegele, R. T., Asch, F. 2021. "Bacillus-mediated cross-protection against iron toxicity and brown spot desease (Bipolaris oryzae) in lowland rice.". Tropentag conference 2021, September 15-17, University of Hohenheim, Germany.

Weinand, T., Zeeshan, I.G., Hartmann, J., Asch, F. 2020. "Bacillus-mediated changes in iron partitioning and sequestration in lowland rice under iron toxic conditions". Tropentag conference 2020, September 9-11, Virtual Conference, Germany.

Students

People

Einfluss von Eisentoxizität auf die Oxidationskraft von Nassreiswurzeln im Sortenvergleich.
Bachelor of Science Thesis, Jadzia Hack [Germany]

Einfluss endophytischer Bazillusstämme auf die Morphologie und Oxidationskraft von Nassreiswurzeln
Bachelor of Science Thesis, Gideon Handschuh, [Germany]

Basiert die Stressvermittlung durch Bazillus bei Reis auf der ACC-deaminase Aktivität der beteiligten Bakterien?.
Bachelor of Science Thesis, Philipp Merx, [Germany]

Aufnahme und Verteilung von endophytischen Bacillusstämmen in Nassreis
Bachelor of Science Thesis, Rebekka Steinhart, [Germany]

Aufnahme und Verteilung von endophytischen Bakterien in Reis.
Bachelor of Science Thesis, Sina Hartl [Germany]

Effects of land-use on salinity built up in irrigated rice production  systems in the Mekong delta of Vietnam

Pia Schneider - Germany 2018 - 2019

Funds

Projects

RiSaWa -  Rice production caught between salinity and drought – future options for sustainable use of water in the Mekong Delta region. BMBF 2018-2021

Paper

Publications

Schneider, P., Asch, F. 2020. Rice production and food security in Asian Mega deltas—A review on characteristics, vulnerabilities and agricultural adaptation options to cope with climate change.  Journal of Agronomy and Crop Science 206, 491-503. https://doi.org/10.1111/jac.12415.

Schneider, P., Sander B.O., Wassmann, R., Asch, F. 2019.
Potential and versatility of WEAP software (Water Evaluation and Planning System) for impact assessments of Alternate Wetting and Drying in irrigated rice. Agricultural Water Management, https://doi.org/10.1016/j.agwat.2019.03.030

Talks

Schneider, P. 2018
Steigender Meeresspiegel gefärdet Reisanbau in asiatischen Megadeltas. Universität Hohenheim, Tag der offenen Tür, 7.7.2018.

Schneider, P., Sander, B.O., Asch, F., Wassmann, R. 2017.
Coping with water scarcity: Alternate Wetting and Drying as mitigation strategy for water-shortages in a rice irrigation system in the Philippines. Future Agriculture: Socio-ecological transitions and bio-cultural shifts - Tropentag 2017, 20.-22.9.2017, Bonn, Germany

Poster

Students

People

Effects of temperature and vapor pressure deficit on genotypic responses to nitrogen nutrition and weed competition in lowland rice

Hoang Duy Vu - Vietnam 2017 - 2021

Funds

Projects

DAAD stipend

Paper

Publications

Vu, H. D., Stuerz, S. , Asch F. 2021. Rice–weed competition in response to nitrogen form under high and low transpirational demand. Journal of Agronomy and Crop Science, open access, https://doi.org/10.1111/jac.12562

Vu, H. D., Stuerz, S. , Asch F. 2021. Leaf gas exchange of lowland rice in response to nitrogen source and vapor pressure deficit. Journal of Plant Nutrition and Soil Science, in press. https://doi.org/10.1002/jpln.202100032

Vu, H. D., Stuerz, S. , Asch F. 2020. Nutrient uptake and assimilation under varying day and night root zone temperatures in lowland rice. Journal of Plant Nutrition and Soil Science 183, 602-614. DOI: 10.1002/jpln.201900522

Talks

Poster

Vu, D. H., Stuerz, S., Asch, F. 2015. 
"Growth response of rice to different vapor pressure deficit and diurnal temperature patterns". 
"Management of land use systems for enhanced food security - conflicts, controversies, and resolutions." - Tropentag 2015, September 16-18, Berlin, Germany.

Students

People

Tipping points and ecosystem services in mountainous plantation systems in south east Asia

Kevin Thellmann - Germany 2017 - 2020

Funds

Projects

Scholarship from the Anton and Petra Ehrmann Research Training Group "Water - People - Agriculture"

Surumer

SOS uplands

Paper

Publications

Thellmann, K., Golbon, R., Cotter, M., Cadisch, G., Asch, F. 2019.
Assessing hydrological ecosystem services in a rubber-dominatedwatershed under scenarios of land use and climate change. Forests, 10 (2), 176; DOI: 10.3390/f10020176.

Thellmann, K., Cotter, M., Baumgartner, S., Treydte, A., Cadisch, G., Asch, F. 2018.
Tipping Points in the Supply of Ecosystem Services of a Mountainous Watershed in Southeast Asia. Sustainability 10, 2418. doi:10.3390/su10072418

Thellmann, K., Blagodatsky, S., Häuser, I., Liu, H., Wang, J., Asch, F., Cadisch, G., Cotter, M. 2017
Assessing Ecosystem Services in Rubber Dominated Landscapes in South-East Asia—A Challenge for Biophysical Modeling and Transdisciplinary Valuation. Forests 2017, 8 (12), 505; doi:10.3390/f8120505

Talks

Poster

Thellmann, K., Cotter, M., Cadisch, G., Asch, F., 2018.
"Identifying Tipping Points in the Supply of Ecosystem Services in a Mountainous Watershed in South-East Asia using Spatially Explicit Modelling".
FOOD 2030 Congress: Towards sustainable agri-food systems, 5.-6. September 2018, Stuttgart, Germany.

Thellmann, K., Cotter, M., Cadisch, G., Asch, F., 2018.
"Modeling the impact of land-use change on ecosystem services and biodiversity in a mountainous watershed."
Symposium: Umweltrisiken in der Wasserforschung - Inter- und transdisziplinäre Bewertungen und Perspektiven, Karlsruhe, Germany.

Students

People

Modelling grassland x grazing interactions with LUCIA

Benjamin Warth - Germany 2016 -

Funds

Projects

Savanna - “Underutilized or unprotected? New methods for analyzing diverging perspectives on the large-scale conversion of tropical grassland eco-systems” - Elrichshausen Stiftung

Paper

Publications

Warth, B., Marohn, C., Asch, F. 2021. Improved simulation of plant-animal interactions in African savannas with the extended land use change model LUCIA. Ecological modelling 446 - 109496. https://doi.org/10.1016/j.ecolmodel.2021.109496

Warth, B., Marohn, C., Asch, F. 2020. Modelling land use change effects on ecosystem functions in African Savannas – a review . Global Food Security 26, 100421, https://doi.org/10.1016/j.gfs.2020.100421

Talks

 Warth, B., Mahron, C. , Asch, F. 2017
"Assessing Savannah grassland intensification impacts - integrating vegetation community functions into physiological crop models"
Future Agriculture: Socio-ecological transitions and bio-cultural shifts - Tropentag 2017, 20.-22.9.2017, Bonn, Germany

Poster

Warth, B., Mahron, C., Asch, F. 2019.
"Assessing Impacts of Crop Expansion and Overstocking in Kenyan Savannah Rangelands Using the LUCIA Model."
In: Tropentag 2019: Filling gaps and removing traps for sustainable resources manage-ment, Tielkes, E. (ed.) Aufl. - Göttingen: Cuvillier, 2019

Students

People

Effects of the conversion of grasslands to crop lands on field water dynamics in Kenya
Master of Science Thesis, Gabriella Soto-Velez, [USA]

Herd grazing effects on vegetation dynamics in Kenya
Master of Science Thesis, Anna Seidel [Germany]

Genotypic thermal responses in high altitude lowland rice

Bayuh Belay Abera - Ethiopia 2015 - 2021

Funds

Projects

RiceAdvice-EA - Improving rice farmers’ decision making in lowland rice-based systems in East Africa.
BMZ 2015-2018

Paper

Publications

Abera, B.B., Senthilkumar, K., Cotter, M., Asch, F. 2021. Transplanting as an option to cope with abiotic stress in high-altitude lowland rice production systems in East-Africa. Journal of Agronomy and Crop Science, open access, https://doi.org/10.1111/jac.12540

Abera, B.B., Stuerz, S., Senthilkumar, K., Cotter, M., Rajaona, A., Asch, F. 2020.  Season‐specific varietal management as an option to increase rainfed lowland rice production in East African high altitude cropping systems. Journal of Agronomy and Crop Science 206, 433-443. https://doi.org/10.1111/jac.12418.

Cotter, M., Asch, F., Abera, B.B., Chuma, B.A., Senthilkumar, K., Rajaona, A.,  Razafindrazaka, A., Saito, K., Stuerz, S. 2020. Creating the data basis to adapt agricultural decision support tools to new environments, land management and climate change—A case study of the RiceAdvice App. Journal of Agronomy and Crop Science 206, 423-432. https://doi.org/10.1111/jac.12421.

Stuerz, S., Shrestha, S.P., Schmierer, M., Vu, D.H., Hartmann, J., Sow, A.,  Razafindrazaka, A., Abera, B.B., Chuma, B.A., Asch, F. 2020. Climatic determinants of lowland rice development. Journal of Agronomy and Crop Science 206, 466-477. https://doi.org/10.1111/jac.12419.

Talks

Poster

Abera, B. B., Cotter, M., Senthilkumar, S., Rajaona, A., Asch, F. 2018. 
"Transplanting instead of direct seeding as an option to mitigate abiotic stress conditions in rainfed lowland rice in high altitude rice systems of Ehtiopia". 
Tropentag 2018, September 17-19, Ghent, Belgium.

Abera, B.B., Cotter, M., Senthilkumar, K., Asch, F. 2017
"Variation in Phenological Development and Yield Performance of Rice Genotypes under Cold Stress in the Fogera Plain, Ethiopia"
Tropentag 2017, September 20-22, University of Bonn, Germany

Students

People

Nutrient dynamics in high-altitude lowland rice

Chuma Boshuwenda - Rwanda 2015 -

Funds

Projects

Improving rice farmers’ decision making in lowland rice-based systems in East Africa.
BMZ 2015-2018

Paper

Publications

Chuma, B.A., Cotter,M., Kalisa, A., Rajaona, A., Senthilkumar, K, Stuerz, S., Vincent, I., Asch, F. 2020. Altitude, temperature, and N Management effects on yield and yield components of contrasting lowland rice cultivars.  Journal of Agronomy and Crop Science 206, 456-465. https://doi.org/10.1111/jac.12420.

Cotter, M., Asch, F., Abera, B.B., Chuma, B.A., Senthilkumar, K., Rajaona, A.,  Razafindrazaka, A., Saito, K., Stuerz, S. 2020. Creating the data basis to adapt agricultural decision support tools to new environments, land management and climate change—A case study of the RiceAdvice App. Journal of Agronomy and Crop Science 206, 423-432. https://doi.org/10.1111/jac.12421.

Stuerz, S., Shrestha, S.P., Schmierer, M., Vu, D.H., Hartmann, J., Sow, A.,  Razafindrazaka, A., Abera, B.B., Chuma, B.A., Asch, F. 2020. Climatic determinants of lowland rice development. Journal of Agronomy and Crop Science 206, 466-477. https://doi.org/10.1111/jac.12419.

Talks

Poster

Boshuwenda, A. C., Senthilkumar, K., Rajaona, A., Kalisa, A., Cotter, M., Asch, F., 2018.
"Effect of fertilizer rates and splits on lowland rice in two temperature environments in Rwanda - with a special focus on the effectivity of basal applications" 
Tropentag 2018, September 17-19, University of Ghent, Belgium.

Vincent, I., Boshuwenda, A. C., Senthilkumar, K., Rajaona, A., Asch, F., 2018.
"Linking leaf color charts and crop N-status to guide fertilizer application in highland rice production systems of Rwanda" 
Tropentag 2018, September 17-19, University of Ghent, Belgium.

Students

People

Soil temperature related N dynamics in high altitude rice production systems.
Master of Science Thesis, Isaac Vincent [USA]
supported the ATSAF-CGIAR Junior Scientist Program

Phenological responses of lowland rice to high-altitudes

Ando Razafindrazaka - Madagascar 2015 -

Funds

Projects

RiceAdvice-EA - Improving rice farmers’ decision making in lowland rice-based systems in East Africa.
BMZ 2015-2018

Paper

Publications

Razafindrazaka, A., Stuerz, S., Cotter, M., Rajaona, A., Asch, F. 2020. Genotypic yield responses of lowland rice in high‐altitude cropping systems. Journal of Agronomy and Crop Science 206, 444-455. https://doi.org/10.1111/jac.12416.

Cotter, M., Asch, F., Abera, B.B., Chuma, B.A., Senthilkumar, K., Rajaona, A.,  Razafindrazaka, A., Saito, K., Stuerz, S. 2020. Creating the data basis to adapt agricultural decision support tools to new environments, land management and climate change—A case study of the RiceAdvice App. Journal of Agronomy and Crop Science 206, 423-432. https://doi.org/10.1111/jac.12421.

Stuerz, S., Shrestha, S.P., Schmierer, M., Vu, D.H., Hartmann, J., Sow, A.,  Razafindrazaka, A., Abera, B.B., Chuma, B.A., Asch, F. 2020. Climatic determinants of lowland rice development. Journal of Agronomy and Crop Science 206, 466-477. https://doi.org/10.1111/jac.12419.

Talks

Poster

Luyckx, E., Razafindrazaka, A. L., Rajoana, A., Asch, F. 2018. 
"Assessing seed germination and seedling vigor in rice under different thermal regimes"
Tropentag 2018, September 17-19, University of Ghent, Belgium.
Poster award - First prize.

Razafindrazaka, A.L., Cotter, M., Rajaona, A., Asch, F. 2017
"Spikelet sterility of lowland rice related to temperature at booting stage in different thermal environments in Madagascar"
Tropentag 2017, September 20-22, University of Bonn, Germany

Students

People

Early leaf area development and leaf area responses to variable thermal environments of lowland rice genotypes in high altitude cropping systems in Madagascar
Master of Science Thesis, Eugen Jedig [Germany]
supported by the foundation fiat panis

Soil Moisture Dynamics in Integrated Crop - Livestock - Forestry Systems in the Cerrado Biome in Central - West Brazil

Sarah Glatzle - Germany 2014 - 2021

Funds

Projects

Scholarship from the Anton and Petra Ehrmann Research Training Group "Water - People - Agriculture"

Paper

Publications

Glatzle, S.; de Almeida, R.G.; Pereira Barsotti, M.; Bungenstab, D.J.; Giese, M.; Macedo, M.C.M.; Stuerz, S.; Asch, F. 2024. Integrated Land-Use Systems Contribute to Restoring Water Cycles in the Brazilian Cerrado Biome. Land, 13, 221. https://doi.org/10.3390/land13020221

Glatzle, S., Stuerz, S., Giese, M., Pereira, M., de Almeida, R. G., Bungenstab, D., Macedo, M. C. M., Asch, F. 2021. Seasonal dynamics of radiation, soil moisture, and aboveground grass biomass in a mature integrated-crop-livestock-forestry system in Central-West Brazil. Agriculture 11, 245. https://doi.org/10.3390/agriculture11030245

Pereira, M., Morais, M. da G., Fernandes, P.B., Santos, V.A.C. dos, Glatzle, S., Almeida, R.G. de. 2021.
Beef cattle production on Piatã grass pastures in silvopastoral systems. Tropical Grasslands-Forrajes Tropicales 9, 1–12. https://doi.org/10.17138/tgft(9)1-12

Talks

Poster

Glatzle, S., Giese, M., Almeida, R. G., Bungestab, D. J., Asch, F. 2017
"Soil Moisture and Microclimate in Integrated Crop-Livestock-Forestry Systems of Central West Brazil"
Tropentag 2017, September 20-22, University of Bonn, Germany

Huebner, S., Glatzle, S., Giese, M., Almeida, R.G., Asch, F. 2017.
"Field water dynamics in integrated systems in the Brazilian Cerrado region"
Tropentag 2017, September 20-22, University of Bonn, Germany

Glatzle, S., Giese, M., Asch, F. 2015
"Screening for water saving traits of common fodder grasses used in integrated crop-livestock-forestry systems of central west Brazil"
Tropentag 2015, September 16-18, Berlin, Germany

Students

People

Microclimate of integrated farming systems in the Brazilian Cerrado eco-region and its implications for the field water dynamics.
Master of Science Thesis, Severin Hübner [Germany]
supported by the foundation fiat panis

Water-smart cropping calendars for East-African rainfed crop production systems

Angela Schaffert - Germany 2013 -

Funds

Projects

Trans-Sec - Innovating Strategies to safeguard Food Security using Technology and Knowledge Transfer: A people-centered Approach.
BMBF 2013-2018

Paper

Publications

Talks

Poster

Schappert, A., Schaffert, A., Germer, J., Asch, F. 2017
"Run-Off, Soil Moisture, and Weed Management Strategies to Increase Water Productivity in Rain-Fed Crops in Tanzania"
Tropentag 2017, September 20-22, University of Bonn, Germany

Students

People

Phenology and yield performance of upland rice under varying water supply
Master of Science Thesis, Kristina Klinkhammer [Germany]
supported by GIZ/BEAF

Effects of water availability and water management on the performance of NERICA 4 under rainfed conditions in semi-arid areas, Tanzania
Master of Science Thesis, Alexandra Schappert [Germany]
supported by the foundation fiat panis

Genotypic and physiological responses of potato to terminal drought stress

Julia Hölle neé Auber - Germany 2012 - 2023

Funds

Projects

DryPotato - Improved potato varieties and water management technologies to enhance WUE, resilience cost effectiveness and productivity of smallholder farms in stress-prone Central Asian environment
BMZ 2012-2015 - Collaboration with CIP

Paper

Publications

Hoelle, J., Asch, F., Khan, A. 2024. Drought affects the synchrony of above and belowground phenology in tropical potato. Journal of Agronomy and Crop Science 210, e12675, https://dx.doi.org/10.1111/jac.12675

Hoelle, J., Asch, F., Khan, A. Bonierbale, M. 2024. Suitability of the Stress Severity Index combined with remote-sensing data as a tool to evaluate drought resistance traits in potato. Journal of Agronomy and Crop Science 210, e12671, https://doi.org/10.1111/jac.12671

Hoelle, J., Asch, F., Khan, A. Bonierbale, M. 2020. Phenology-adjusted stress severity index to assess genotypic responses to terminal drought in field grown potato. Agronomy 10(9), 1298; https://doi.org/10.3390/agronomy10091298

Talks

Poster

Hoelle, J., Zumaran, J., Farafan, E., Bonierbale, M., Asch, F. 2017.
"Drought effects on the synchrony of above ground and below ground phenology of five potato clones".
Tropentag 2017, September 20-22, University of Bonn, Germany

Kuppinger, L., Auber, J., Farfan, E., Khan, M.A., Bonierbale, M., Asch, F. 2014
"Effects of drought stress on crop development, growth and chlorophyll fluorescence in five potato clones".
"Bridging the gap between increasing knowledge and decreasing resources" - Tropentag 2014, September 17-19, Prague, Czech Republic

Auber, J., Khan, M.A., Farfan, E., Bonierbale, M., Asch, F. 2014
"Does combining canopy reflectance and canopy temperature allow identifying drought resistance strategies in potato?".
"Bridging the gap between increasing knowledge and decreasing resources" - Tropentag 2014, September 17-19, Prague, Czech Republic

Auber, J.,Bonierbale, M., Asch, F. 2013
"Screening Potato for Drought Tolerance by Linking Physiological to Morphological Traits".
"Agricultural development within the rural-urban continuum" - Tropentag 2013, September 17 - 19, Hohenheim, Germany

Students

People

Physiological responses of field-grown potato to water deficit
Master of Science Thesis, Leah Kuppinger [Germany]
supported by GIZ/BEAF

Temperature and spectral reflectance in potato clones under progressive drought
Master of Science Thesis, Jesus Zamaran [Peru]

Management of excess standing biomass in Argentinean grasslands to increase grass and livestock productivity

Ditmar Kurtz - Argentina 2011 - 2016

Funds

Projects

DAAD Stipend - Food Security Center

Research funds from Tropenzentrum University of Hohenheim

Paper

Publications

Kurtz, D. B., Giese, M., Asch, F., Windisch, S. H., Goldfarb, M. C. 2018.
Effects of High Impact Grazing on Species Diversity and Plant Functional Groups in Grasslands of Northern Argentina. Sustainability 2018, 10, 3153; doi.org/10.3390/su10093153

Kurtz, D. B., Asch, F., Giese, M., Huelsebusch, C., Goldfarb, M. C., Casco, J. F., 2016
High impact grazing as a management tool to optimize biomass growth in northern Argentinean grassland. Ecological Indicators 63, 100-109.

Talks

Kurtz, D., Giese, M., Navarro Rau, M. F., Asch, F. 2014.
Is High Impact Grazing-Trampling a Management Option to Reduce Excess Standing Biomass in Argentinean Grasslands?
"Bridging the gap between increasing knowledge and decreasing resources" - Tropentag 2014, September 17-19, Prague, Czech Republic

Poster

Kurtz, D., Giese, M., Asch, F., Dickhoefer, U., 2018.
"High impact grazing enhances grass forage quality in northern Argentina".
Tropentag 2018, September 17-19, University of Ghent, Belgium.

Windisch, S., Kurtz, D., Asch, F. 2015
"Does high impact grazing change plant species composition or diversity of northern Argentinean grasslands?"
Tropentag 2015, September 16-18, Berlin, Germany

Kurtz, D., Goldfarb, M., Quiros, O., Nunez, F., Asch, F. 2014
"Does high impact grazing and trampling affect grasslands floristic composition?".
"Bridging the gap between increasing knowledge and decreasing resources" - Tropentag 2014, September 17-19, Prague, Czech Republic

Kurtz, D., Giese, M., Goldfarb, M., Verdoljack, J., Ybarra, D., Huelsebusch, C., Asch, F. 2013
"High impact grazing as management option for excess standing biomass in Argentinean grasslands".
"Agricultural development within the rural-urban continuum" - Tropentag 2013, September 17 - 19, Hohenheim, Germany

Díaz Falú, E., Brizuela, M., Kurtz, D., Giese, M., Asch, F. 2012
"Cattle and Sheep Foraging Behaviour in a Heterogeneous Subtropical Grassland"
Resilience of Agricultural Systems against Crises - Tropentag 2012 - 19-21 September 2012, Göttingen, Germany

Students

People

Effect of vegetation density on grazing behavior of free-ranging cattle in grasslands of Northeast Argentina
Master of Science Thesis, Cecilia Molo [Argentina]

Effects of repeated bunch grazing on fodder quality and species composition of Argentinean pastures
Master of Science Thesis, Saskia Windisch [Germany]

"Monitoring the encroachment of Northern Argentinean grasslands by invasive species using NDVI"
Master of Science Thesis, Ruben Gonzales [Argentina]

Auswirkungen von hoch-intensiv Beweidung auf die Bodenwasserdynamik in Nord-Argentinischen Grasländern.
Bachelor of Science Thesis, Rabea Mächtel [Germany]

Pasture Cropping as an Alternative Cropping System for Sub-Saharan Africa

Rohan Orford - Botswana 2011 - 2020

Funds

Projects

DAAD Stipend - Food Security Center

Paper

Publications

Talks

Can intercropping food crops into perennial pasture improve water use efficiency, risk profile, and sustainability of degraded dryland systems?
Orford, R., Annandale, J., Van der Laan, M., Asch, F. 2015.
"Management of land use systems for enhanced food security - conflicts, controversies, and resolutions." - Tropentag 2015, September 16-18, Berlin, Germany.

Poster

Students

People

"Effects of variable water supply on root properties of sorghum and cowpea in mono- and inter-cropped systems"
Master of Science Thesis, Mercy Bah [Cameroon]

Photosynthesis, quantum requirements, and energy demand for crop production in controlled environments

Marc Schmierer - Germany 2011 - 2020

Funds

Projects

Paper

Publications

Schmierer, M., Brueck, H., Asch, F., Sauerborn, J. 2021. Estimating the Quantum Requirements for Plant Growth and Related Electricity Demand for LED Lighting Systems. Journal für Verbraucherschutz und Lebensmittelsicherheit, Volume 16 (1), 35-43. DOI: 10.1007/s00003-021-01314-4

Schmierer, M. Knopf, O., Asch, F. 2021. Growth and Photosynthesis Responses of a Super Dwarf Rice Genotype to Shade and Nitrogen Supply. Rice Science 28, 178−190

Talks

Schmierer, M., Knopf, O., Asch, F. 2016.
Growth dynamics and yield formation related to flag leaf photosynthesis and PSII Fluorescence in Rice.
Solidarity in a competing world - fair use of resources - Book of Abstracts - Tropentag 2016, University of Natural Resources and Life Science, Vienna, Austria, p 133.

Poster

Knopf, O., Stuerz, S., Schmierer, M., Asch, F. 2019.
"Effects of P-nutrition and VPD on rice leaf morphology and photosynthesis".
Tropentag 2019, September 18-20, University of Kassel, Germany
Poster award - First prize.

Schmierer, M., Knopf, O., Asch, F. 2018. 
"Analysis of yield components and photosynthetic limitations of a dwarf rice varietey in response to shade". 
Tropentag 2018, September 17-19, University of Ghent, Belgium.

Johnson, K., Stuerz, S., Schmierer, M., Asch F., 2018.
"Effects of day and night temperatures on rice photosynthesis". Tropentag 2018, September 17-19, University of Ghent, Belgium.

Schmierer, M., Bruguera, E., Asch, F. 2015. 
"Response of rice to changes in the green and far-red light ratio". 
"Management of land use systems for enhanced food security - conflicts, controversies, and resolutions." - Tropentag 2015, September 16-18, Berlin, Germany.

Schmierer, M., Brueck, H., Asch, F. 2012. 
"Skyfarming – Staple Food Production in Cities - Light vs Energy Demand". 
Resilience of Agricultural Systems against Crises - Tropentag 2012 - 19-21 September 2012, Göttingen, Germany.

Students

People

Einfluss der Windgeschwindigkeit auf die Transpiration und die Blattentwicklung von drei Reissorten (Oryza sativa L.)
Bachelor of Science Thesis, Sebastian Deimel [Germany]

Einfluss von fernroter und grüner Zusatzbeleuchtung auf das Wachstum und den Gaswechsel von Reis (Oryza sativa L.) während der Jugendentwicklung
Bachelor of Science Thesis, Ezequiel Bruguera [Germany]

Reaktionen von Wachstum und Kornertrag eines Superzwergreis-Genotyps auf Veränderung des Stickstoff- und Lichtangebotes während der generativen Phase.
Bachelor of Science Thesis, Oliver Knopf [Germany]

Influence of light quality and quantity on biomass accumulation in Fallopia sachalinensis
Bachelor of Science Thesis, Alexandra Schappert [Germany]

Physiological and growth responses of Jatropha curcas L. to water, nitrogen, and salt stress

Arisoa Rajaona - Madagascar 2008 - 2012

Funds

Projects

WUJIM - Water-use efficiency of Jatropha curcas  in Madagascar
EN-BW Stiftung 2008-2011

Paper

Publications

Rajaona, A.M., Brueck, H., Asch, F., 2013
Leaf gas exchange characteristics of Jatropha as affected by nitrogen supply, leaf age, and atmospheric vapour pressure deficit. Journal of Agronomy and Crop Science 199, 144-153.

Rajaona, A.M.; Sutterer, N.; Asch, F., 2012
Potential of Waste Water Use for Jatropha Cultivation in Arid Environments. Agriculture 2012, 2, 376-392.

Rajaona, A.M., Brueck, H., Seckinger, C., Asch, F., 2012
Effect of salinity on canopy water vapor conductance of young and 3-year old Jatropha curcas L. Journal of Arid Environments 87, 35-41

Rajaona, A.M., Brueck, H., Asch, F., 2011
Effect of pruning history on growth and dry mass partitioning of Jatropha curcas L. on a plantation site in Madagascar. Biomass and Bioenergy 35, 4892-4900.

Talks

Poster

Rajaona, A., Sutterer, N., Asch, F. 2012
"Potential of Waste Water Use for Jatropha Cultivation in Arid Environments"
Resilience of Agricultural Systems against Crises - Tropentag 2012 - 19-21 September 2012, Göttingen, Germany

Rajaona, A., Asch, F., Brueck, H. 2010
"Response of leaf area and biomass partitionning of Physic nut to variable water supply".
Tropentag 2010, Zürich 14-16 Sep., ETH, Zürich, Switzerland

Rajaona, A., Asch, F., Brueck, H. 2010
"Leaf age effects on intrinsic water-use efficiency of Jatropha curcas".
Agro 2010 - the XIth ESA Congress, Montpellier. Proceedings

Rajaona, A., Brueck, H., Asch, F., 2009.
"Description of the spatial arrangement of Jatropha curcas L. root system. A case study from Madagascar"
Tropentag 2009, October 6-8, University of Hamburg, Hamburg.

Students

People

"The potential for irrigating Jatropha curcas with waste water"
Master of Science Thesis, Nele Sutterer [Germany]

"Bewertung der Salztoleranz von Jatropha curcas."
Bachelor of Science Thesis, Christina Seckinger [Germany]

Environmental effects on physical properties of Geohumus and effects of its application on drought responses of maize

Nha Van Duong - Vietnam 2008 - 2013

Funds

Projects

BATROS - Bodenmelioration und Anbauverfahren für trockenheitsgefährdete Standorte
BMBF 2006-2009

VIED 322 project - Stipend

Paper

Publications

Talks

Poster

Duong Van Nha, Asch, F. 2012
"Effects of Geohumus on Physiological Traits of Maize (Zea mays L cv Mikado) under Variable Water Supply"
Resilience of Agricultural Systems against Crises - Tropentag 2012 - 19-21 September 2012, Göttingen, Germany

Students

People

Genotypic responses of rainfed sorghum to a latitude gradient

Lansah Abdulai - Ghana 2008 - 2016

Funds

Projects

RiSoCAS - Developing rice and sorghum crop adaptation strategies for climate change in vulnerable environments in Africa
BMZ 2008-2011 in collaboration with AfricaRice

Paper

Publications

Abdulai, A. L., Kouressy, M., Vaksmann, M., Asch, F., Giese, M., Brueck, H., 2012.
Latitude and Date of Sowing Influences Phenology of Photoperiod-Sensitive Sorghums. Journal of Agronomy and Crop Science 198, 340-348

Abdulai, A.L. Parzies, H., Kouressy, M., Vaksmann, M., Asch, F., Brueck, H., 2012
Yield stability of photoperiod-sensitive sorghum [Sorghum bicolor L. (Moench)] accessions under diverse climatic environments. International Journal of Agricultural Research 7, 17-32.

Talks       

Poster

Students

People

Genotypic responses of upland rice to an altitudinal gradient

Suchit Shrestha - Nepal 2008 - 2012

Funds

Projects

RiSoCAS - Developing rice and sorghum crop adaptation strategies for climate change in vulnerable environments in Africa
BMZ 2008-2011 in collaboration with AfricaRice

Paper

Publications

Shrestha, S., Asch, F., Brueck, H., Giese, M., Dusserre, J., Ramanantsoanirina, A. 2013
Phenological responses of upland rice grown along an altitudinal gradient. Environmental and Experimental Botany 89 , pp. 1-10

Shrestha, S., Asch, F., Dusserre, J., Ramanantsoanirina, A., Brueck, H., 2012.
Climate effects on yield components as affected by genotypic responses to variable environmental conditions in upland rice systems at different altitudes. Field Crops Research 134 , 216-228

Shrestha, S., Brueck, H., Asch, F., 2012.
Chlorophyll Index, Photochemical Reflectance Index and Chlorophyll Fluorescence Measurements of Rice Leaves Supplied with Different N Levels. Journal of Photochemistry and Photobiology B: Biology 113, 7–13

Shrestha, S., Asch, F., Dingkuhn, M., Becker, M., 2011
Cropping calendar options for rice – wheat production systems at high-altitudes. Field Crops Research 121, 158-167.

Talks

Poster

Shrestha, S., Asch, F. Brück, H., Ramanantsoanirina, A., Dusserre, J., 2010.
"Environmental Effects on Yield of Upland Rice Grown Along an Altitude Gradient in Madagascar"
The 28th International Rice Research Conference, Climate Change and Rice Agriculture; November 8 - 12, 2010; Hanoi, Vietnam

Shrestha, S., Brück, H., Asch, F. 2010.
"Diagnosis of Rice Leaf N Status by Photochemical Reflectance Index (PRI) and Chlorophyll Index (SPAD)".
Tropentag 2010, September 14-16, ETH, Zürich, Switzerland

Ramanantsoanirina, A., Duserre, J., Shresta, S., Asch, F., 2009. "Temperature effects on the phenology of upland rice grown along an altitude gradient in Madagascar". 
Tropentag 2009, October 6-8,University of Hamburg, Hamburg.

Shresta, S., Asch, F., Brueck, H., Duserre, J., Ramanantsoanirina, A. 2009. 
"Upland rice adaptation to variable water availability along an altitude gradient in Madagascar". 
Tropentag 2009, October 6-8, University of Hamburg, Hamburg.
Proceedings

Students

People

"Phyllochron of upland rice grown at low and high altitude climatic conditions"
Bachelor of Science Thesis, Juy-Kieu Chak, [Germany]

Effects of water management on microclimate and yield physiology in irrigated rice in semi-arid environments

Sabine Stürz - Germany 2008 - 2014

Funds

Projects

RiSoCAS - Developing rice and sorghum crop adaptation strategies for climate change in vulnerable environments in Africa
BMZ 2008-2011 in collaboration with AfricaRice

Paper

Publications

Stuerz, S., Sow, A., Muller, B., Manneh, B., Asch, F., 2014
Leaf area development in response to meristem temperature and irrigation system in lowland rice. Field Crops Research 163, 74-80.

Stuerz, S., Sow, A., Muller, B., Manneh, B., Asch, F., 2014
Canopy microclimate and gas-exchange in response to irrigation system in lowland rice in the Sahel. Field Crops Research 163, 64-73.

Stuerz, S., Sow, A., Muller, B., Manneh, B., Asch, F., 2014
Yield components in response to thermal environment and irrigation system in lowland rice in the Sahel. Field Crops Research 163, 47-54.

Talks

Poster

Stürz, S., Asch, F., Sow, A., Muller, B., Manneh, B.,  Dingkuhn, M., 2010. 
"Phenological responses of irrigated rice in the Sahel"
Africa Rice Congress 2010, Innovations and Partnerships to realize Africa's Rice Potential, 22-26 March 2010, Bamako, Mali
Poster award - First prize.

Stürz, S., Asch, F., Sow, A., Muller, B., Manneh, B. 2010
"Intra-annual genotypic patterns of growth and water use of irrigated rice in the Sahel".
Tropentag 2010, Zürich 14-16 Sep., ETH, Zürich, Switzerland
Poster award - Third Prize.

Hartmann, J., Stürz, S., Manneh, B., Sow, A., Asch, F. 2010.
"Response of transpiration of lowland rice varieties to water-saving irrigation".
Tropentag 2010, Zürich 14-16 Sep., ETH, Zürich, Switzerland

Stürz, S., Sow, A., Schlegel, I., Manneh, B., Asch, F. 2009.
"Annual variation of water use and yield of irrigated rice in the Sahel". 
Tropentag 2009, October 6-8, University of Hamburg, Hamburg. Poster award - First Prize. Proceedings

Stürz, S., Schlegel, I., Sow, A., Asch, F. 2008.
"Physiological Responses of Lowland Rice Cultivars to the Saturated Soil Culture System". 
Tropentag 2008, October 7-9, University of Hohenheim, Stuttgart. Poster award - First Prize.

Students

People

"Physiolgical aspects of water use effciency in selected irrigated rice genotypes grown in the Sahel"
Diplomarbeit, Julia Hartmann [Germany]
supported by GIZ/BEAF

"Physiological and agronomic responses of selected rice genotypes to irrigation management practices in the Sahel"
Master of Science Thesis, Isabel Schlegel [Germany]
supported by GIZ/BEAF

Effects of seed coating on germination and early seedling growth in cereals

Linda Gorim - Cameroon 2007 - 2014

Funds

Projects

BATROS - Bodenmelioration und Anbauverfahren für trockenheitsgefährdete Standorte
BMBF 2006-2009

Freudenberger Feldsaaten

Paper

Publications

Gorim, L., Asch, F. 2017
Seed coating with hydro-absorbers as potential mitigation of early season drought in sorghum (Sorghum bicolor L. Moench). Biology 6, 33; doi:10.3390/biology6030033

Gorim, L., Asch, F. 2017
Seed coating increases seed moisture uptake and restricts embryonic oxygen availability in germinating cereal seeds. Biology 6, 31; doi:10.3390/biology6020031

Gorim, L., Asch F., 2015
Seed coating reduces respiration losses and affects sugar metabolism during germination and early seedling growth in cereals. Functional Plant Biology 42, 209-218.

Gorim, L., Asch F., 2012
Effects of composition and share of seed coatings on the mobilisation efficiency of cereal seeds during germination. Journal of Agronomy and Crops Science  198, 81-91 - DOI: 10.1111/j.1439-037X.2011.00490.x.

Talks

Poster

Gorim, L., Asch, F., Hattig, T., Bestajovsky, J. 2011
"The effects of coatings and/or rhizobia on the growth of Alfalfa (Medicago sativa Verko.)" 
Tropentag 2011, October 4-6, University of Bonn, Bonn, Germany

Gorim, L., Asch, F. 2010
"Effects of Hydrophilic Coating on the Mobilisation of Endosperm Reserves in Seedlings of Spring Barley (Hordeum vulgare L. Maltasia)"
Tropentag 2010, Zürich 14-16 Sep., ETH, Zürich, Switzerland
Poster award - nominated.

Gorim, L., Asch, F. 2010
"Coating seeds with hydro-absorbers as possible mitigation strategy for unreliable rainfall patterns in early-sown Sorghum". 
Agro 2010 - the XIth ESA Congress, Montpellier. Proceedings

Gorim, L., Trimborn, M., Asch, F. 2009.
"Remobilisation efficiency of coated cereal seeds during germination depends on coat composition and size". 
Plants for the Future - Botanikertagung 2009: Leipzig 6-10.9.2009. Book of Abstracts: 15.

Gorim, L., Asch, F., Trimborn, M. 2009.
"Seed coating with hydro-absorbent properties as possible mitigation strategy for unreliable rainfall patterns in early-sown Sorghum". 
Tropentag 2009, October 6-8, University of Hamburg, Hamburg.
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Auswirkungen von Mantelsaat auf das Keimverhalten von Süssgräsern unter Trockenstress
Bachelor of Science Thesis, Gwendolin Krauss [Germany]