Water stress and gibberellic acid effects on growth of fenugreek plants

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Author Alhadi, Fatima Ahmad en_US
Author Yasseen, Bassam Taha en_US
Author Jabr, Mahmoud en_US
Available date 2009-12-29T08:51:35Z en_US
Publication Date 1998-03-20 en_US
Publication Name Irrigation Science
Citation Ahmad Alhadi, F., Yasseen, B. T., & Jabr, M. (1999). Water stress and gibberellic acid effects on growth of fenugreek plants. Irrigation Science, 18(4), 185–190 en_US
ISSN 0342-7188 (Print) en_US
ISSN 1432-1319 (Online) en_US
URI http://dx.doi.org/10.1007/s002710050061 en_US
URI http://hdl.handle.net/10576/10563 en_US
Abstract Fenugreek plant is susceptible to water stress during the vegetative growth stages, since a soil matric potential lower than -0.3 MPa causes substantial reduction in growth parameters such as height, weight and total leaf area. Gibberellic acid (GA3) application to the seeds before sowing caused slight changes in growth parameters as well as some physiological and biochemical aspects under water deficit conditions. Water stress decreased the area of leaves by reducing the number and volume of cells. Leaf growth was improved by GA3 treatment by promoting the growth processes slightly. Photosynthetic pigments (Chlorophyll a and b, and carotenoids) in the leaves diminished and the concentrations of the main cations (Na+, K+, Ca2+ and Mg2+) were disturbed by a decreasing soil matric potential. Monosaccharides accumulated markedly under water stress, and GA3 may have further stimulated such accumulation. A substantial reduction in total soluble nitrogen was accompanied by a marked increase in protein-N. The possible physiological and biochemical roles of such alterations in the chemical constituents are discussed. en_US
Language en en_US
Publisher Springer Berlin / Heidelberg en_US
Subject Gibberellic acid.
Subject Plants -- Effect of stress on.
Subject Plants -- Effect of gibberellic acid on.
Subject Fenugreek.
Title Water stress and gibberellic acid effects on growth of fenugreek plants en_US
Type Article en_US

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