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不同密度下蕾铃总脱落率相差不大。均以下层和内围蕾铃脱落较少,密植比稀植更显著。稀植下有效铃分布于棉株上中下,密植的仅集中于1—5果枝的第一果节,相对集中。蕾铃脱落的时间以5月底以前的蕾脱落最少,6月底以后最多。6月底以前出现的蕾是产量形成的主体,密植条件下的产量100%由这部分蕾形成,稀植下可形成产量是94%。因此要通过栽培管理设法提早多现蕾,这是吐鲁番地区棉花增产的关键时期。
Different densities of the total loss of buds or less. Both the lower layer and the inner budlet shed less, dense planting more significantly than the sparse plants. Sparsely distributed effective bolls distributed on the cotton plant in the next, close planting only concentrated in the first fruiting branch 1-5, relatively concentrated. Falling buds time to the end of May before the bud off the least, most after the end of June. Buds that appeared before the end of June were the mainstay of yield formation. The yield under close planting was 100% formed by this part of the bud, and the yield was 94% under the thin planting. Therefore, through cultivation and management to try to more bud earlier, which is the key period for the cotton yield in Turpan region.