Induction of Parthenocarpic Fruit Development in Cucumber by Growth Regulators1
1974; American Society for Horticultural Science; Volume: 9; Issue: 3 Linguagem: Inglês
10.21273/hortsci.9.3.238
ISSN2327-9834
AutoresG. Elassar, J. Rudich, D. Palevitch, N. Kedar,
Tópico(s)Plant Molecular Biology Research
ResumoAbstract The effect of growth regulators indoleacetic acid (IAA), parachlorophenoxy-acetic acid (4-CPA), β-napthoxyacetic acid (β-NOA), gibberellin (GA 3 and GA 4+7 ) and benzyladenine (BA) applied directly to flowers at anthesis, caused parthenocarpy in cucumbers ( Cucumis sativus L.), while (2 chloroethyl)phosphonic acid (ethephon) and abscisic acid (ABA) were ineffective. Only synthetic auxins and BA effectively induced parthenocarpy in treated whole plants. 4-CPA was the most effective treatment for induction of parthenocarpic fruits, as determined by number and shape. Application of GA to the entire plant caused increase in vegetative growth, but fruit development was inhibited even under conditions of natural pollination.
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