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Title: Salinity Tolerance of some Mungbean Varieties
Authors: Magda H. Mohamed ; M.F. El Kramany
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Keywords: Mungbean (Vigna radiata L. wilczek); Varieties ; Saline water; Growth; Yield ; Chemical composition
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Abstract:Salinity tolerances of four mungbean (Vigna radiata (L.) wilczek) varieties (King, VC-21, VC-15, and
Kawmy-1 (local)) were tested in pot trial under three levels of salinity Zero (control), 2000 and 4000 ppm Na cl).
Growth, yield, yield components and chemical composition in seeds of four mungbean varieties were compared
at different levels of salinity. Results showed that VC-15 variety produced the highest dry matter (DM) of stems
and leaves .Also, leaf area (LA) and leaf area index (LAI) at 35 (DAP) On the other hand VC-21 variety came in
the first order at 50 (DAP) in the same characters. All growth characters of four varieties decreased with
increasing salinity levels. The reduction was severe in 4000 ppm level compared to 2000 ppm. King variety
recorded very convergent values under three salinity levels. VC-21 variety surpassed other varieties in
pods/plant, seeds/plant, seed yield/plant, N % in seeds and seeds/pod. King was superior in branches/plant,
VC-15 seeds contain highest P % but King contain highest K % and lowest content of Na (ppm) in seeds.
Yield and yield components and K % in seeds decreased with increasing salinity levels. Treatments of 4000 ppm
recorded highest P % and Na (ppm) in seeds. Interaction of VC-21 x control was the best in branches/plant,
pods/plant, seeds/pod, seeds/plant but VC-15 x control gave the highest seed index. Seeds of King variety
x control contain the highest K% but Kawmy-1 x 4000 ppm gave the best content of P % and Na (ppm) in seeds4