ACTA AGRICULTURAE BOREALI-SINICA ›› 2014, Vol. 29 ›› Issue (1): 135-139. doi: 10.7668/hbnxb.2014.01.025

Special Issue: Rice

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Effect of High Temperature on Starch Formation of Grain and Activities of Enzymes Related to Starch Synthesis of Quality Rice Varieties

Lv Yan-mei1,2, TAN Wei-ping3, XIAO Ceng-lin1, FAN Mei-rong4, LIAO Yu-lin2   

  1. 1. Hunan Agricultural University, Changsha 410128, China;
    2. Hunan Academy of Agriculture Sciences Changsha 410125, China;
    3. Zhejiang Nongke Seed Industry Co., Ltd., Hangzhou 310002,China;
    4. Changsha Environmental Protection College, Changsha 410004, China
  • Received:2013-11-06 Published:2014-02-28

Abstract: The effects of high temperature on grain starch accumulation,Yuzhenxiang and Xiangwanxian 12 were investigated. In grain growing in pots with temperature controlled and moisture controlled green house in different days after anthesis,compared with grain growing in natural temperature as CK. The results showed that amounts of amy-lopectin and starch accumulation in grains declined significantly under heat stress at different stages after anthesis. The order of the treatments were CK T1 T2 T3 after anthesis,but the amounts of amylase showed the opposite trend. High temperature can brought large influence to rice yield and starch formation compared with the field trial,and different cultivated variety had different effect. High temperature on the heading stage could affect activities of enzymes related to starch synthesis of SSS,SS,AGpase and GBSS etc,this series of enzyme rose at first, reached the peak at different times,so it brought great influence on grain yield.

Key words: Rice, The stress of high temperature, Starch, Enzymes related to starch synthesis

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Cite this article

Lv Yan-mei, TAN Wei-ping, XIAO Ceng-lin, FAN Mei-rong, LIAO Yu-lin. Effect of High Temperature on Starch Formation of Grain and Activities of Enzymes Related to Starch Synthesis of Quality Rice Varieties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(1): 135-139. doi: 10.7668/hbnxb.2014.01.025.

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