Relative efficacy of water use in five varieties of Abelmoschus esculentus (L.) Moench. under water-limited conditions

B. Sankar, C. Abdul Jaleel, P. Manivannan, A. Kishorekumar, R. Somasundaram, R. Panneerselvam

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

In the present investigation, five varieties of okra (Abelmoschus esculentus (L.) Moench.) were screened for their water use efficiency under two water regimes, viz., 60% and 100% filed capacity. Drought stress was imposed at 60% field capacity from 30 to 70 days after sowing, while the control pots were maintained at 100% field capacity throughout the period of entire growth. Biomass and yield, leaf area duration, cumulative water transpired water use efficiency, net assimilation rate, mean transpiration rate and harvest index under water deficit level were measured. Water use efficiency significantly increases in all the okra varieties under water-limited environment. Drought stress decreased the biomass and yield, leaf area duration, cumulative water transpired, net assimilation rate, mean transpiration rate and harvest index in the okra varieties studied. But among the varieties, variety JK Haritha showed better results. None of the varieties studied had showed increased drought tolerance than the control.

Original languageEnglish
Pages (from-to)125-129
Number of pages5
JournalColloids and Surfaces B: Biointerfaces
Volume62
Issue number1
DOIs
Publication statusPublished - Mar 15 2008
Externally publishedYes

Keywords

  • Biomass yield
  • Drought
  • Gravimetric method
  • Leaf area duration
  • Net assimilation rate
  • Water use efficiency

ASJC Scopus subject areas

  • Biotechnology
  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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