Effect of branch position on seed weight and oil content in canola ( Brassica napus L.)

IF 1.2 4区生物学 Q2 Agricultural and Biological Sciences

Journal of Applied Botany and Food Quality-Angewandte Botanik Pub Date : 2017-12-18 DOI:10.5073/JABFQ.2017.090.045

Yun Ren, Jianfang Zhu, Yichun Wang, Shanlin Ma, Genru Ye, S. Hua

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引用次数: 1

Abstract

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 silique 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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分枝位置对甘蓝型油菜种子重和含油量的影响

增加种子重量和含油量是提高油菜籽含油量的主要途径。分枝位置对油菜种子重量和含油量的影响以前没有报道过。通过田间试验，探讨了枝条位置对种子重量和含油量的影响。采用浙优50号、中双11号、浙优18号和浙双8号四个油菜基因型，从主茎顶部到底部，对油菜主花序和枝条的种子重量、含油量、碳水化合物含量和氮含量进行了评价。四个基因型的种子重量和含油量从主花序到下部枝条都有所下降。浙双8号和浙优18号种子中碳水化合物和氮含量较低，两种化合物在角果和枝条中的转运效率较低，这分别是造成种子重量和含油量较低的原因。然而，枝条中种子重量和含油量的下降与枝条中碳水化合物和氮含量从上到下的下降并不一致。结果表明，油菜种子在不同枝条中的碳水化合物和氮代谢较为复杂。

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来源期刊

Journal of Applied Botany and Food Quality-Angewandte Botanik 生物-植物科学

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： The Journal of Applied Botany and Food Quality is the Open Access journal of the German Society for Quality Research on Plant Foods and the Section Applied Botany of the German Botanical Society. It provides a platform for scientists to disseminate recent results of applied plant research in plant physiology and plant ecology, plant biotechnology, plant breeding and cultivation, phytomedicine, plant nutrition, plant stress and resistance, plant microbiology, plant analysis (including -omics techniques), and plant food chemistry. The articles have a clear focus on botanical and plant quality aspects and contain new and innovative information based on state-of-the-art methodologies.