Effect of high temperature at heading and flowering stage on seed-setting rate of rice recombinant inbreed line population (RIL47)

ZHOU Hao; HU Wen-Bin; WANG Zuo-Ping; PENG Ke-Qin; XIAO Guo-Ying

doi:10.3724/SP.J.1011.2011.00069

Volume 19 Issue 1

Dec. 2010

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Article Navigation > Chinese Journal of Eco-Agriculture > 2011 > 19(1): 69-74 > DOI: 10.3724/SP.J.1011.2011.00069

ZHOU Hao, HU Wen-Bin, WANG Zuo-Ping, PENG Ke-Qin, XIAO Guo-Ying. Effect of high temperature at heading and flowering stage on seed-setting rate of rice recombinant inbreed line population (RIL47)[J]. Chinese Journal of Eco-Agriculture, 2011, 19(1): 69-74. DOI: 10.3724/SP.J.1011.2011.00069

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Effect of high temperature at heading and flowering stage on seed-setting rate of rice recombinant inbreed line population (RIL47)

1.
College of Bioscience & Biotechnology, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Agro-ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
2.
Key Laboratory of Agro-ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China; College of Agronomy, Hunan Agricultural University, Changsha 410128, China
3.
Key Laboratory of Agro-ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
4.
College of Bioscience & Biotechnology, Hunan Agricultural University, Changsha 410128, China

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Received Date: 2010-03-14
Revised Date: 2010-05-27
Issue Publish Date: 2010-12-31

Abstract

Abstract

Rice recombinant inbreed line population RIL47 (comprising 254 lines) was treated with high and natural (CK) temperatures at heading and flowering stage and the effect of high temperature on seed-setting rates evaluated. The results indicated that seed-setting rate of RIL47 followed a normal distribution curve under natural conditions. Compared with natural temperature, high temperature significantly decreased RIL47 seed-setting rate with an average decline of 81.6%. Absolute decline in RIL47 seed-setting rate followed a normal distribution curve. Five heat-tolerant lines (07H1619, 1590, 1521, 1706 and 1608) and three heat-sensitive lines (07H1751, 1710 and 1719) were simultaneously selected from the 254 RIL47 lines by using a heat-injure index. This could be used in analyzing heat resistance of rice.
- High temperature,
- Seed-setting rate,
- Heading and flowering stage,
- Recombinant inbreed line,
- Rice

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References (17)

References

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