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用 14 C示踪方法研究大白菜种株不同生育时期同化产物分配及其对种荚形成的作用 ,结果表明 :叶片是主要同化器官 ;生育前期同化产物主要向茎枝和根系分配 ;后期主要向角果输送 ;种株开花前同化产物可通过再次分配进入角果 ,开花后同化产物对种子形成贡献更大。种株不同生育时期同化产物对角果皮和籽粒发育的作用存在差异
The 14 C tracing method was used to study the distribution of assimilate products and their effect on the seed pod formation of Chinese cabbage at different growth stages. The results showed that the leaves were the main assimilate organs, and the assimilates were mainly distributed to stem and root at early growth stage. Assortment of seedlings before flowering can assimilate the assimilation products into the pods through redistribution. Assimilation products after flowering contribute more to seed formation. The effect of assimilation products on the development of anther pericarp and grain at different growth stages was different