The quantitative method, analysing the population structure of the high quality bolls, was suggested. the result was in accord with the actual situation.
本文提出了一套定量分析优质铃群体结构的方法，其分析结果与实际生产管理情况基本相符。
It is true that there is temporal and spatial difference for weight and fibre quality of cotton bolls.
棉花生产中棉铃的重量及其纤维品质存在时空上的差异，这是客观事实。
The effect of shading on the cotton fiber and seed quality was mainly restricted on the bolls of top fruiting branches and the outside bolls of upper fruiting branches.
苗期遮荫对棉纤维、棉籽品质性状的影响也主要在顶部果枝和上部果枝外围铃。
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