Vol. 69 No: 6

Title:
Hormonal Control of Splitting in ‘Nova’ Mandarin Fruit

Authors:
V. ALMELA, S. ZARAGOZA, E. PRIMO-MILLO and M. AGUSTI

pp: 969-974

Abstract:
Fruit splitting, a physiological disorder of peel development in citrus, has been studied in terms of peel thickness and puncturing resistance in ‘Nova’ mandarins. Both features are negatively correlated with splitting. A mixture of GA₃ and 2,4-D reduced significantly the percentage of affected fruits. The best results were obtained with two applications at 60 and 30 d before the anticipated onset of the disorder. Calcium nitrate applications have similar effects, but were ineffective in orchards with a low natural incidence of splitting.

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