Abstract
Water stress effects induced by stopping watering at vegetative (S1) and flowering (S2) stages were studied on five varieties of okra [Abelmoschus esculantus Moench (L.)]. Parameters such as relative water content, membrane permeability, chlorophyll content and yield of capsules varieties were evaluated. Our results show that water deficiency reduces relative water content of okra leaves. This reduction is more pronounced when water lack occurs at flowering stage of plants and, leakage of electrolytes across cell membranes is increasing. In addition, soil water deficit increased total chlorophyll content of leaves, which is much higher in stressed plants at vegetative stage. At the vegetative stage as to flowering, water deficit also reduces yield of capsules of varieties UAE 1, UAE 40 and UAE 45. This reduction is much important when plants were stressed at flowering. Key words: Okra, water deficit, physiology, performance.
Highlights
Water stres ss effects in nduced by sttopping wate ering at veg getative (S1) and floweriing (S2) stag ges were studied on five varietie es of okra [A
Our results show that water w deficie ency reduces s relative wa ater content of okra leav ves
Water deficit has reduced relative water content of plants leaves compared to controls (Figures 1A and B)
Summary
Water stres ss effects in nduced by sttopping wate ering at veg getative (S1) and floweriing (S2) stag ges were studied on five varietie es of okra [A. Our results show that water w deficie ency reduces s relative wa ater content of okra leav ves. This reduction is more pron nounced wh hen water lac ck occurs a at flowering stage of pla ants and, lea akage of electrolytes s across ce ell membran nes is incre easing. Okrra has long been considered as a marginal pro oduces very nutritional and dietary y capsules. In add dition, it has long been used in tradition nal cooking and a parrticularly in ru ural areas bu ut nowadays okra is used in diettary habits off urban dwelle ers
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