Excessive accumulation of soluble salts in soil suppresses plant
growth and productivity so an efficient and simple screening
technique for selection of available okra (Abelmoschus esculentus
L.) genotypes for salt tolerance was executed. Seeds of eight okra
genotypes were grown in pot culture under protected environment of
lath house. Twenty days old seedlings were exposed to salinity
under control, 20, 40, 60 and 80 mM NaCl. Results revealed that
increasing salinity caused reduction in plant height, number of
leaves, fresh and dry weights as well as gas exchange
characteristics like photosynthesis rate and stomatal conductance
of okra. Na contents were higher in salt sensitive genotypes as
compared to tolerant one. Okra genotypes OH-2324 and OH-597
spectacled best performance in all the measured parameters and
grouped under salt tolerant cultivars while OH-152 and OH-809 were
aggravated in maintaining normal functioning at higher salinity
levels thus proved to be salt sensitive.
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