Effect of light quality in crop canopy on morphogenetic responses and dry matter production in in wheat.

植物通过光感受器感知光，并通过避荫综合征诱导光形态发生反应。本研究旨在量化作物冠层内R:FR对小麦分蘖反应和产量的影响。通过叶长间隔、立地灌浆、每叶长分蘖数的相对增长率分析了分蘖动态。进行了不同施氮时间和不同密度的田间试验。在此基础上，分析了光品质与形态响应和产量的关系。

Plants sense light through photoreceptors and induces photomorphogenetic responses through the shade avoidance syndrome. This study aimed toquantify the effect of R:FR within a crop canopy on tillering response and yield in wheat. Tillering dynamics was analyzed by phyllochron interval and site-filling, the relative increase rate of tillers per phyllochron. The field experiments with the different timing of topdressing N, and the different plant densities were conducted. From these results, the relationship between the light quality and morphological responses and yield were analyzed.