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Principles of thinning in fruit tree crops--needs and novelties

Author:
Costa, G., Blanke, M.M., Widmer, A.
Source:
Acta horticulturae 2013 no.998 pp. 17-26
ISSN:
0567-7572
Subject:
alternate bearing, apples, color, firmness, flowers, fruit crops, fruit quality, fruit trees, marketing, peaches, storage quality, sugars, taste
Abstract:
Fruit trees bear an abundance of flowers, which they cannot support until fruit maturation; ca. 7% of flowers are necessary in apple for a sufficient harvest while 25% of flowers are necessary in peach. Thinning is hence a prerequisite in fruit crops i) to achieve high quality fruit with sufficient size and colouration for class I marketing including sugar (as a parameter for taste) and sufficient firmness (as a parameter for good storability), ii) to reduce labour-intense hand thinning and iii) to overcome alternate bearing (change of low and high yielding years) by providing regular moderate yields.
Agid:
322384