Abstract
Abstract The effects of BA alone or in combination with GA4+7 and with either daminozide or a surfactant on growth and lateral development of peach [Prunus persica (L.) cv. Redhaven] were evaluated at 4 stages of terminal growth. BA + GA4+7 at 500 ppm or 1000 ppm daminozide was the most effective treatment for inducing lateral development when applied at terminal growth of 15-20 cm or 31-36 cm. BA + GA4+7 increased both tree height and average internode length for all treatments. BA with either surfactant or daminozide was not effective in inducing lateral shoot formation and caused shorter internodes and retarded tree growth in all treatment combinations except 250 ppm + 1000 ppm daminozide. Chemical names used: N-(phenylmethyl)-1H-purin-6-amine (BA) and (1α,2β,4aα,4bβ,10β)-2,4a,7-trihydroxy-l-methyl-8-methylenegibb-3-ene-l,10-dicarboxylic acid 1,4a-lactone (GA4+7).
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