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小麦籽粒的大小和饱满的程度,是植株的全部器官在特定条件下,在其生长和发育的过程中紧密联系、互相制约、互相促进的最后结果。研究这种联系,找出品种间的差异,对培育粒大粒饱新品种,进一步提高小麦单位面积产量具有重要的意义。丁寿康等分析了我国小麦品种资源的千粒重存在明显差异,并提出了分级的标准。H.G.Nass等人指出,充实速率与籽粒产量显著正相关(r=0.84~*)。张晓龙的研究,揭示了品种间千粒重和饱满度均存在极显著的差异,这种差异与营养体的繁茂度、光合产物向籽粒转运的速度和贮藏库的大小,有极为密切的关系。深入研究这种关系,将为制定育种目标和选择单株提供有益的参考。
The size and fullness of wheat grains are the final result of the close contact, mutual restraint and mutual promotion of all organs of a plant under certain conditions during their growth and development. Studying this relationship and finding the differences among cultivars will be of great significance for nurturing full-grain varieties and further improving yield per unit area of wheat. Ding Shoukang et al. Analyzed the significant differences in 1000-grain weight of wheat germplasm resources in China and proposed the grading standards. H.G. Nass et al. Indicated that there was a significant positive correlation between grain filling rate and grain filling rate (r = 0.84 ~ *). Zhang Xiaolong’s research revealed that there was a very significant difference between grain weight and plumpness among cultivars. This difference was closely related to the abundance of vegetative bodies, the rate of photosynthetic products transport to the grain and the size of the storage. In-depth study of this relationship will provide a useful reference for the establishment of breeding objectives and selection of individual plants.