Foliar Boron Application Improves Flower Fertility and Fruit Set of Olive

By S. Perica, P. Brown, J. Connell, A. Nyomora, Christos Dordas, Hening Hu, J. Stangoulis. 2001

134 citations recorded by the source corpus.

A 2-year field study was conducted to determine if foliar B applications prior to flowering increased fruit set in olive (Olea europaea L.) cv. Manzanillo. Boron solutions were applied (935 L.ha -1 ) at four concentrations (0, 246, 491, and 737 mg.L -1 ) to trees exhibiting no vegetative symptoms of B deficiency. Foliar B application increased both the percentage of perfect flowers and fruit set, but no effect on pollen germination was observed in either year. The increase in fruit set was not accompanied by a reduction in fruit size. The beneficial effects of foliar B application varied between years and were greater when fruit set was low. The results obtained here are in agreement with those observed in other tree species, in which foliar B applications made immediately prior to flowering or during the period of floral bud initiation significantly increased fruit set and yield. The physiological basis for this effect, however, remains unclear.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/a169b218a5c7cd6b7f716058860fc5db91b54e14

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Citations in the corpus

Flowering and Fruit Set of Olive Trees in Response to Nitrogen, Phosphorus, and Potassium (2008, background): “Deficient B has been demonstrated to increase the percentage of imperfect flowers and to decrease fruit set (Perica et al., 2001).”