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本文以短季棉常规株型为对照,分析了不同播期条件下,短季棉多茎株型成铃及单铃重的时间和空间分布特点;短季棉多茎株型单株开花结铃时间晚,结铃集中,优质铃结铃期和优质铃部位的成铃比常规株型明显增加;单铃重比常规株型同时间开花的成铃高,但比常规株型同节位的铃重低。综合来看,多茎株型单株成铃显著增加,但平均铃重较低。分析认为:短季棉多茎株型成铃分布合理、早播不易早衰,可以防止烂铃,有较高的生产应用价值。
In this paper, the short-term cotton conventional plant type as a control, the different sowing date conditions, the short-season cotton stalks bolls and single boll weight characteristics of time and space; Compared with the conventional plant type, the boll weight of single boll weight was higher than that of the conventional plant type at the same time, but the boll weight was higher than that of the conventional plant type The bell weight is low. Taken together, the bolls of multi-stem plants increased significantly, but the average boll weight was lower. The analysis shows that the short-season cotton stalks have a reasonable distribution of bolls, the early-sowing is not easy to premature failure, can prevent the bad bell, and has higher production and application value.