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Position: Home > Articles > Identification of seed heat tolerance and its correlation with agronomic traits in Brassica napus L. Oil Crop Science 2018,3 (1) 21-32

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

作  者:
Guizhen Gao;Kun Xu;Biyun Chen;Xi Cheng;Guixin Yan;Jiangwei Qiao;Qian Huang;Xiaoming Wu
单  位:
Key Laboratory of Biology and Genetic Improvement of Oil Crops
关键词:
Brassica;NAPUS;L.;SEED;VIABILITY;SEED;GERMINATION;heat;stress;AGRONOMIC;traits;yield;quality;
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 70oC 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.

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