Work

Chemical Control of Vegetative Growth of Deciduous Fruit Trees with Paclobutrazol and RSW0411

Year: 1988

Type: article

Abstract: The use of chemicals to control vegetative growth of fruit trees at the Tree Fruit Research Laboratory in Wenatchee, Wash, began 25 years ago. Vegetative growth of apple seedlings in greenhouse trials was first controlled with foliar applications of butanedioic acid mono (2,2-dimethylhydrazide) (daminozide) (B-9, Alar). Field trials then were conducted on both apple and young cherry trees (3, 4). Daminozide also has been used to improve annual return blooming and fruit set, promote red skin color development, delay maturity, and improve storability of apple cultivars. Often, the high rates needed to control vegetative growth have reduced fruit size and fruit length, resulting in flat fruit shape (4, 13, 28). The latter phenomenon is important, for ‘Delicious’ apple for which “typiness” is a strong marketing characteristic and therefore an economic benefit. This paper presents results of continuing research on the control of excessive vegetative growth of deciduous fruit trees.

Source: HortScience

DOI: 10.21273/hortsci.23.3.470

Author: Eric A. Curry

Institutions: Agricultural Research Service, United States Department of Agriculture, Tree Fruit Research Laboratory

Language: English

Topic: Plant Physiology and Cultivation Studies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Estimated APC paid: $3,000