Seed weight and oil content response to branch position reveals the importance of carbohydrate and nitrogen allocation among branches in canola (Brassica napus L.) genotypes
文献类型： 外文期刊
作者： Ren, Yun 1 ; Zhu, Jianfang 1 ; Wang, Yichun 3 ; Ma, Shanlin 1 ; Ye, Genru 1 ; Hua, Shuijin 2 ;
作者机构： 1.Huzhou Acad Agr Sci, Huzhou, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Crop & Nucl Technol Utilizat, Hangzhou, Zhejiang, Peoples R China
3.Huzhou Bur Agr, Huzhou, Peoples R China
期刊名称：JOURNAL OF APPLIED BOTANY AND FOOD QUALITY （ 影响因子：1.451； 五年影响因子：1.73 ）
ISSN： 1439-040X
年卷期： 2017 年 90 卷
页码：
收录情况： SCI
摘要： Increasing seed weight and oil content are the main pathways to increase canola seed oil yield. The effect of branch position on seed weight and oil content has not been previously reported in canola. Field experiments were conducted to explore the impact of branch position on seed weight and oil content. Four canola genotypes, Zheyou 50, Zhongshuang 11, Zheyou 18, and Zheshuang 8, were used to evaluate seed weight, oil content, carbohydrate profile, and nitrogen content in the main inflorescence and branches from the top to the bottom of the main stem. Seed weight and oil content decreased from the main inflorescence to the lower branches in the four genotypes. Lower carbohydrate and nitrogen content in the seed and low transport efficiency of the two chemical compounds in the siliques and branches were responsible for the lower seed weight and oil content in Zheshuang 8 and Zheyou 18, respectively. However, the decreasing seed weight and oil content in the branches did not correspond with decreasing carbohydrate and nitrogen content in the branches from the top to the bottom. The result suggested complex carbohydrate and nitrogen metabolism in the canola seed in the different branches.
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