Chinese Journal of Agrometeorology ›› 2015, Vol. 36 ›› Issue (02): 195-202.doi: 10.3969/j.issn.1000-6362.2015.02.010

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Genetic Parameter Debugging for Main Rice Varieties in Hetao Irrigation Area in Ningxia Region

LIU Yuxi, LIU Jing, WANG Lianxi, LI Qi   

  1. 1School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing210044, China; 2Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing210044; 3Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction,Yinchuan750002
  • Received:2014-09-11 Online:2015-04-20 Published:2015-06-25

Abstract: In order to estimate the impact of chilling damage to rice with the CERESRice model, the main rice genetic parameters in Hetao irrigation area must be determined. Based on observed data during 1966-2013 from national agrometeorological experimental station in Zhongwei and Yongning, combined with the weather and attribute of soils at the same period, the genetic parameters were debugged. The days of anthesis and maturity, rice yield, aboveground biomass weight at maturity, maximum leaf area index were used to verify the error between measured and simulated value of three main rice varieties (Ningjing28, Fuyuan4 and Ningjing16). The results showed that the genetic parameter for midseason rice Fuyuan4 had the best performance, and the D index of anthesis, maturity and yield was 0.86, 0.77 and 0.84, respectively. The genetic parameter for late rice Ningjing16 had better performance, and the D index of anthesis, maturity and yield was 0.86, 0.64 and 0.91, respectively. The genetic parameter for late rice Ningjing28 had good performance, the D index of anthesis, maturity and yield was 0.58, 0.77 and 0.92, respectively. The three main variety genetic parameters could be applied to simulate the rice growth in Hetao irrigation region, and used for rice chilling damages simulation study further .

Key words: CERESRice model, Genetic parameter, Error verification, Hetao irrigation region