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Leaf K/Na ratio predicts salt induced yield loss in irrigated rice

A field trial with 21 irrigated rice varieties for 7 seasons

At the West Africa Rice Development Association, St. Louis, Senegal

fresh water control and salinity at 3.5 mS cm-1 in neighboring plots

Na and K was determined in the 3 youngest fully developed leaves in the early vegetative stage. Yield was determined at maturity.

The ratio between K and Na across the 3 youngest leaves allowed predicting the yield loss due to salinity across genotypes and seasons.


Asch F., Dingkuhn M., Miezan K., Dörffling K. 2000
Leaf K/Na ratio predicts salinity induced yield loss in irrigated rice. Euphytica 113, 109-118