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  • Author or Editor: G. W. Derickson x
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Relationship of Endogenous Flower Bud Abscisic Acid to Peach Chilling Requirements, Bloom Dates, and Applied Gibberellic Acid 1
Authors:
H. H. Bowen
and
G. W. Derickson

Abstract

Concentrations of total abscisic acid (ABA) in flower buds from 7 clones of peach (Prunus persica (L.) Batsch) were measured on 4 sampling dates and compared with chilling requirements (CR) of these clones. In December the correlation coefficient between ABA content and CR was r = 0.89. ABA concentration increased with tree vigor. Fall-applied gibberellic acid (GA3) decreased ABA concentration in flower buds in December and delayed bloom the following spring.

Open Access
Type:
Journal Article
in HortScience
Published-print:
01 Dec 1978
Volume/Issue:
Volume 13: Issue 6
Article Category:
Research Article