Growth and Evapotranspiration of Okra (Abelmoschus Esculentus L.) as Influenced by Salinity of Irrigation Water
Publication: Journal of Irrigation and Drainage Engineering
Volume 134, Issue 2
Abstract
The effects of irrigation water salinity on growth, yield, and water consumption of okra was investigated with a pot experiment. For this purpose, five irrigation water salinity levels with electrical conductivities of 1.5, 2.5, 3.5, 5.0, and and tap water as a control treatment were used in a randomized design with five replications. Irrigation practices were realized by considering the weight of each pot. Threshold soil salinity and slope values of the yield response to soil salinity level were determined to be and 4.2%, respectively, for fruit yield, and 7.0% for vegetative dry weight, and and 7.9% for root dry weight. The results revealed that okra was moderately tolerant to salinity. Increasing soil salinity levels caused significant decreases in plant water consumption. Plant water consumption decreased by 2.43% per unit increase in soil salinity. Plant coefficient was 1.26. Saline irrigation water treatments altered Cl, Mg, Ca, and Na accumulations in leaves, whereas only Na accumulation in fruits was observed.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 134 • Issue 2 • April 2008
Pages: 160 - 166
Copyright
© 2008 ASCE.
History
Received: Dec 7, 2006
Accepted: Apr 20, 2007
Published online: Apr 1, 2008
Published in print: Apr 2008
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