Identi cation of seed heat tolerance and its correlation with agronomic traits in Brassica napus L.

被引：0

作者：

Guizhen Gao ^{[1
]}

Kun Xu ^{[1
]}

Biyun Chen ^{[1
]}

Xi Cheng ^{[1
]}

Guixin Yan ^{[1
]}

Jiangwei Qiao ^{[1
]}

Qian Huang ^{[1
]}

Xiaoming Wu ^{[1
]}

机构：

[1] Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture,Oil Crops Research Institute,Chinese Academy of Agricultural Sciences

来源：

Oil Crop Science | 2018年 / 3卷 / 01期

关键词：

Brassica napus L; seed viability; seed germination; heat stress; agronomic traits; yield; quality;

D O I：

暂无

中图分类号：

S565.4 [油菜籽（芸薹）];

学科分类号：

0901 ;

摘要：

To better understand the effect of high temperature on seed viability, artificial aging treatments were implemented on 472 accessions of rapeseed (Brassica napus L.) by constant high temperature at 70℃for 8h. Results showed a remarkable impact of constant heat on seed germination. After heat treatment, considerable variation was found in seed germinability, some genotypes even lost the ability to germinate. The effect of accelerated aging was highly significant. Germination parameters varied among ecotypes. Seed viability varied with different origin, and was significantly and positively correlated with seed yield per plant and dry weight of aboveground parts per plant among 14 agronomic traits. Germination traits were positively correlated with oil contents.

引用

页码：21 / 32

页数：12

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