Journal of Tianjin Agricultural University ›› 2016, Vol. 23 ›› Issue (1): 10-13.

• Researches and Scientific Notes • Previous Articles     Next Articles

Effect of Temperature during Grain Filling on Rice Quality Characters and Correlation Study

XU Xi-ming1, ZHANG Xin1, CUI Jing1,Corresponding Author, Yuji Matsue2   

  1. 1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China;
    2. Graduate School of Agricultural Sciences, Kyushu University, Kyushu 819-0395, Japan
  • Received:2015-10-27 Online:2016-03-20 Published:2019-10-14

Abstract: This article resolved the effects of climate factors on rice quality traits in 2013 and 2014, and the correlation analysis were studied between rice grain filling of temperature and grain quality traits. The results showed that the effects of climate factors on the amylose content, protein content and breakdown of inter-annual were highly significant differences, the effect on the highest viscosity was not significant. The most important factor among the climatic factors was the temperature of the rice grain filling stage. Rice grain filling stage had a very significant positive correlation with rice disintegration, it had a significant positive correlation with the protein content of rice, and it was negatively correlated with the content of amylose content, and it had a weak positive correlation with the highest viscosity. The higher the breakdown value, the higher protein content of rice and the lower amylose content appeared with the higher the temperature during grain filling stage, and it was no relationship with the maximum viscosity.

Key words: rice, quality characteristic, temperature of rice grain filling

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