Nectarine and Peach Varietal Response to NAA Sprout Inhibition
DOI:
https://doi.org/10.71318/apom.1981.35.1.26Abstract
Naphthaleneacetic acid (NAA) was applied to first and second leaf [ Prunus persica(L.) Batsch] trees at rates of 0.5 and 1.0% to inhibit undesired sprouting and thus reduce pruning, and to enhance the open-vase tree form. First leaf Flordaking peach and Armking nectarine and second leaf Aurelia and Fla. M. 6-6 nectarines had vegetative sprout lengths of 3.2, 0.6, 1.3, and 3.8 cm, respectively, during the March 9 application. Sprout inhibition was achieved with no substained reduction of trunk diameter growth. Though light to moderate NAA-induced gummosis occurred 3 months after treatment, it was not significant compared to the checks by the 7th month. Tree mortality was confined to the first leaf trees at the 1.0% rate.
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