HUBEI AGRICULTURAL SCIENCES ›› 2018, Vol. 57 ›› Issue (4): 15-18.doi: 10.14088/j.cnki.issn0439-8114.2018.04.004

• Breeding & Cultivation • Previous Articles     Next Articles

Selection and Identification of Rice Restorer Line with Heat Tolerance at Flowering Stage

WEN Shao-shan1, 2, ZHANG Lin1, 2, JIAO Jun1, 2   

  1. 1.Rice and Sorghum Research Institute,Sichuan Academy of Agricultural Sciences/Key Laboratory of Southwest Rice Biology and Genetic Breeding,Ministry of Agriculture,Deyang 618000,Sichuan,China;
    2.Luzhou Branch of National Rice Improvement Center,Luzhou 646100,Sichuan,China
  • Received:2017-11-29 Online:2018-02-25 Published:2019-12-25

Abstract: To screen rice restorer lines with high heat tolerance,the heat tolerance of 36 rice restorer lines was identified through artificial climate chamber at flowering stage. The results showed that the differences in seed setting rate and the reduction rate of seed setting rate of rice restorer lines were very significant under high temperature treatment. The 36 rice restorer lines were classified into 4 groups with different heat tolerance based on clustering analysis. It indicated that rice restorer lines Luhui 17,RHTR20,R1862 and Luhui 602 had good heat tolerance.

Key words: rice(Oryza sativa L.), restorer Line, heat tolerance, high temperature stress, flowering stage

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