Effect of time and amount of fruit thinning on leaf carbohydrates and fruit set in Valencia oranges

W. W. Jones, T. W. Embleton, E. L. Barnhart and C. B. Cree

Hilgardia, 1974, vol. 42, issue 12

Abstract: Carbohydrates in the leaves were mainly starch, sucrose and one unidentified compound. Also present were small amounts of fructose, glucose, malic acid, myo-inositol, and one other unidentified soluble carbohydrate. There was a positive correlation between the fruit set in the spring of 1971 and the concentration of starch in the leaves before the beginning of 1971 spring growth. During the June drop period, there was an increase in leaf starch, but not in sugar, associated with an increase in degree of thinning. At the end of the June drop period, there were no significant differences in starch or sugar content. Data presented in this study indicate that carbohydrates, in the amounts present, were not limiting for fruit set.

Keywords: Crop; Production/Industries (search for similar items in EconPapers)
Date: 1974
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