PJB-2003-14
SALINITY INDUCED CHANGES IN SOME GROWTH AND PHYSICO-CHEMICAL ASPECTS OF TWO SOYBEAN [GLYCINE MAX (L.) MERR.] GENOTYPES
ALI KAMAL, M. SALEEM QURESHI, M. YASIN ASHRAF AND M. HUSSAIN
Abstract
Effect of salt stress on plant biomass production and some biochemical parameters of two soybean [Glycine max (L.) Merr.] genotypes were investigated under three NaCl salinity levels (control and 3.0, 4.5 and 6.5 dsm-1). Salinity induced a marked reduction in plant height and plant biomass production in both genotypes. Chlorophyll a, chlorophyll b and total chlorophyll increased with increase in levels of salinity. A marked increase in sodium (Na+) and chloride (Cl-) contents were observed in response to salinity, whereas potassium (K+) and nitrogen contents of salt stressed plants were lower than that of controls. Genotypes did not differ significantly regarding all the parameters studied.
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