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棉花高产与增加结铃率有直接关系,在已据不同条件所决定的植株密度(9—12万/公顷)的基础上,结铃量是决定收获多少的重要因素。棉花结铃率又主要决定于子房(按:即幼铃)脱落的多少。应用新的农业科学和实践成就,我们已能栽培发育很好的植株,具有较高的结铃能力,但据观察证明,在生产条件下的植株由于各种原因使子房脱落达60-70%以上。这些原因,目前还研究得较少,现有的研究结果,尚不能提出有效的减少棉花子房脱落的措施。1916、1930年Γ.С.扎依采夫研究子房脱落的结论说是棉株衰老的结果。1929年 A.B.勃拉果维申斯基说子房脱落主要是因为缺乏营养。1980年Д.А.萨比宁认为子房脱落的原因是(?)供应棉铃不足,B.
The high yield of cotton is directly related to the increase of boll rate. Based on the plant density (90-1200 ha / ha) that has been determined under different conditions, the boll amount is an important factor in determining how much to harvest. Cotton boll rate is mainly determined by the ovary (by: the young bell) shed much. With new agricultural science and practical achievements, we have been able to cultivate well-developed plants and have a high ability to bear bellies. However, it has been observed that plants under production conditions shed ovaries for 60-70% for various reasons %the above. These reasons, at present, have been studied less, the existing research results, still can not put forward effective measures to reduce cotton ovary shedding. 1916, 1930 Γ.С. Zaitsev’s study of ovarian shedding concluded that the result of cotton senescence. 1929 A.B.Blagosvishinsky said that ovarian shedding is mainly due to lack of nutrition. 1980 Д.А. Sabinen think ovarian shedding is due to (?) Insufficient supply of cotton bolls, B.