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dc.contributor.authorD’souza, Myrene R-
dc.contributor.authorDevaraj, V R-
dc.identifier.issn0975-0967 (Online); 0972-5849 (Print)-
dc.description.abstractDrought and salinity stress are the major causes of historic and modern agricultural productivity losses throughout the world. The availability of irrigation water is a challenge for many countries that have scarce water resources, yet are highly dependent on agriculture as a means of revenue. Effect of drought on Hyacinth bean, Dolichos lablab (HA-4 cultivar) was evaluated in 10-d-old seedlings for 8 d after withholding water. The stress reduced dry and fresh weight, leaf number, surface area, root and shoot length, total chlorophyll and relative water content. Oxidative stress markers, H2O2, glutathione, malondialdehyde, proline, ascorbic acid, total phenols, and total soluble sugars were significantly elevated. Drought enhanced antioxidant enzymes, peroxidase and glutathione reductase, and reduced catalase in a time dependent manner in the leaves. POX and CAT in roots showed inverse relationship with the duration of stress, whereas GR exhibited increased activity. The metabolic activitiy of enzymes, β-amylase and acid phosphatase, increased temporally in leaves and roots. Intensity of isozymes correlated with in vitro levels under stress. The plant showed ability to rehydrate and grow upon re-watering, and levels of antioxidant components correlated with drought tolerance of the planten_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJBT Vol.10(1) [January 2011]en_US
dc.subjectantioxidant enzymesen_US
dc.subjectDolichos lablaben_US
dc.subjectdrought stressen_US
dc.subjecthyacinth bean prolineen_US
dc.titleSpecific and non-specific responses of Hyacinth bean (Dolichos lablab) to drought stressen_US
Appears in Collections:IJBT Vol.10(1) [January 2011]

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