Original Articles

Effect of a foliar application of paclobutrazol in autumn on the reproductive development of ‘Songold’ plum

Published in: South African Journal of Plant and Soil
Volume 7, issue 2, 1990 , pages: 92–95
DOI: 10.1080/02571862.1990.10634545
Author(s): O.J. OlivierDepartment of Horticultural Science, Republic of South Africa, G. JacobsDepartment of Horticultural Science, Republic of South Africa, D.K. StrydomDepartment of Horticultural Science, Republic of South Africa

Abstract

A foliar application of paclobutrazol (1- (4-chlorophenyl) −4,4-dimethyl-2- (1,2,4- triazol-1-yl) pentan-3-ol) at 250 or 500 mg dm−3 a.i. in autumn, or late winter applications of dinitro-o-cresol oil emulsion (DNOC) in water at 3% v/v, increased the percentage of ‘Songold’ plum flower buds that opened early. Paclobutrazol applications significantly increased the dry weight of buds and flowers and the dimensions of floral parts. Applications of paclobutrazol in autumn increased the dry matter allocation in favour of reproductive bud development before the commencement of shoot growth.

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