Branch -drooping could significantly retard growth vigour of Delicious apple trees, promote flower bud formation, and raise fruiting rate.
拉枝能显著抑制‘元帅’苹果幼树旺枝的生长势，促进花芽的形成，提高坐果率。
The experiments were carried out to pursue effects of single or mixed use of several plant growth regulators (PGR) on flower bud formation, fruit set, fruit shape and production of apple.
研究了多种植物生长调节物质及其配合应用对苹果花芽形成、坐果、果形和产量的影响。
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