Pollination techniques in zucchini production in the presence of boron fertilization
Zucchini (Curcubita pepo L.), known in Brazil as “abóbora de moita”, belongs to the Cucurbitaceae family and is among the top ten vegetables produced and of highest economic value in Brazil. The present study aims to evaluate the efficiency of different forms of pollination in zucchini plantations subject to boron fertilization. The experimental design used was randomized blocks in a 4 x 2 factorial arrangement, with four replications. The treatments consisted of a combination of four pollination methods (fruiting induced with 2,4-dichlorophenoxyacetic acid (2,4-D); manual pollination; natural pollination by bees and control) and boron fertilization (absent and in the soil at a dose of 2 kg ha-1). The percentage of flowering was evaluated and, of the harvested squashes, the diameter, length and average weight of the commercial fruits (those uniform in terms of shape, size, and color) were recorded. The application of 2,4-D promoted the greatest fruit setting rate, diameter, length and mass in the squash. 2,4-D promoted the development of parthenocarpic fruits and can be used to promote yield gains in zucchini production.
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