Water relations and growth vigour of Vigna sinensis plants in relation to indole acetic acid, gibberellic acid or kinetin

Aldesuquy, H. and El-Shahaby, O. and Sadeek, A. (2007) Water relations and growth vigour of Vigna sinensis plants in relation to indole acetic acid, gibberellic acid or kinetin. Acta Botanica Hungarica, 49 (3-4). pp. 251-265. ISSN 0236-6495

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Abstract

The objective of this study was designed to investigate the effect of seed priming with different concentrations of growth bioregulators ( i.e. indole acetic acid, gibberellic acid or kinetin) on growth and water relations of Vigna sinensis plants throughout various stages of plant growth and development.In the majority of cases, indole acetic acid, gibberellic acid or kinetin at different concentrations stimulated the growth vigour of cowpea plants (root length, root fresh and dry weight, shoot length, shoot fresh and dry weights and leaf area production) all over the growth periods.Seed pretreatment with IAA or kinetin induced significant increases in total leaf conductance and transpiration rate that was accompanied by a decrease in RWC. On the other hand, GA3 induced reverse situation in these parameters.

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