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棉花的结铃部位,一般是先由棉株第1果枝第一节开始,逐步向上向外伸展。据观察,相连果枝同节位的棉铃,结铃间隔时间平均为2.6天,快的1天,慢的3天;同一果枝相连节位的结铃,间隔时间平均为4.5天,快的5天,慢的8天。这种情况说明棉花的结铃,果枝间纵向结的快、结的早,果枝内节位间横向结的晚、结的慢,纵向结两个多铃时,横向才结一个铃. 这种果枝间,节位间的间隔天数并不是由下到上,由里向外相对固定的,而是随着果枝的增长,
Cotton boll sites, generally first by the cotton plant first fruit branch first section, gradually extended upward outward. It is observed that the bolls connected to the same node with the same node have an average interval of 2.6 days, fast one day and slow three days. The bolls of the same fruiting branch with an average interval of 4.5 days and an average of five days Slow 8 days. This situation shows that the cotton boll, fruiting branches between the longitudinal knot fast, early knot, fruiting branches within the knot late horizontal knot, knot slow, longitudinal knot more than two bell, horizontal knot only a bell. Fruiting branch, the interval between the number of days is not from the bottom up, relatively fixed from inside to outside, but with the growth of fruiting branches,