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通过试验研究了田间光照强度与株型性状的关系。分析表明亩穗数、收敛指数、叶态、穗重4个性状与小麦田间平均透光率显著相关。茎态是株型的重要指标,茎态紧凑型品种的田间透光性大,茎态松散的品种透光性小。通过收敛指数与产量多项式拟合说明不同成穗类型的品种对茎态的要求不同。即大穗品种要求扩张型茎态,中穗品种要求松散茎态,多穗型品种要求紧凑或极紧凑茎态。
The relationship between field light intensity and plant type traits was studied through experiments. The results showed that there were significant correlations between the average number of ears per plant, the convergence index, leaf state and panicle weight and the average light transmittance of wheat. Stem shape is an important indicator of plant type. Stem compact varieties have large translucency in the field and light translocation in the loose stalks. According to the convergence index and yield polynomial fitting, it shows that the stem varieties have different requirements for different ear types. That large spike varieties require expansion stems, medium spike varieties require loose stems, more spike varieties require compact or extremely compact stems.