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- Title
Yield efficiency for nine apple cultivars grafted on two rootstocks.
- Authors
Caetano Fioravanço, João; Costa Czermainski, Ana Beatriz; de Oliveira, Paulo Ricardo Dias
- Abstract
Currently, using smaller trees is one of the most important trends in apple cultivation. It is expected that reduced size plants produce lower amount of fruit, but with high yield and yield efficiency. The aim of this study was to evaluate the yield efficiency (YE) of nine apple tree cultivars, grafted on two rootstocks, from the second to the seventh year after planting. The YE indexes oscillated from one to the other year, regardless of rootstock. Correlations between YE and yield per tree and between YE and trunk cross sectional area (TCSA) confirmed that efficiency can be increased by the production increment or by the plant's vigor reduction. The usefulness of cumulative YE (YE) is highlighted to compare apple tree cultivars after the third year of production. The highest YE indexes were observed for 'Royal Gala' and 'Baigent', on M-9 rootstock, and for 'Gala Real' and 'Maxi-Gala', on Marubakaido/M-9 rootstock.
- Subjects
ROOTSTOCKS; APPLE varieties; CROP yields; PLANT size; PLANT vitality
- Publication
Ciência Rural, 2016, Vol 46, Issue 10, p1701
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/0103-8478cr20141754