Lateral Shoot Development in Six Diverse Seedling Populations of Apple
DOI:
https://doi.org/10.71318/apom.1995.49.4.248Abstract
Growth and branching habit of seedling populations originating from open-pollinated trees of Malus prunifoliaBorkh., M. ranetkaBorkh., and four cultivars of M. domesticaBorkh. ('Antonovka,' 'Bittenfelder' 'Borowinka,' 'Golden Delicious') were characterized. The decreased rate at which new lateral shoots developed was directly related to decreases in terminal growth rate, since all lateral budbreak throughout the growing season occurred within 20 cm of the shoot tip. 'Borowinka' sdlg., 'Golden Delicious' sdlg., and M. ranetkapopulations were most vigorous and, generally, had the greatest number of lateral budbreaks and branches. However, lateral budbreak and branching were not strongly related to terminal growth rate, evidenced by poor correlations with terminal shoot length, cross-sectional area, and internode length.
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