Scientia Agricultura Sinica ›› 2006, Vol. 39 ›› Issue (12): 2435-2440 .

• TILLAGE & CULTIVATION·PHYSIOLOGY & ECOLOGY • Previous Articles     Next Articles

Study on NIR Models of Protein Content in Rice Based on Representative Samples of Varieties and RILs

  

  1. 上海市农业生物基因中心
  • Received:2005-07-03 Revised:1900-01-01 Online:2006-12-10 Published:2006-12-10

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Abstract: After comparison of NIR spectra of 496 rice varieties and 178 RILs from the cross “II-32B/Yue-Zao-Xian No6”, 76 cultivars and 59 RILs were selected to develop three PLS regression models based on cultivar, RIL and mixture samples, respectively. By comparing the effect of validation and prediction, there was found some limitation of model based on RILs due to the narrow range of distribution of protein content. Nevertheless the models based on the representative cultivars or mixture samples had a high coefficient of determination (r2 >0.90) in validation and low absolute error (<1.1%) in prediction, which should be suitable for primary screening on protein content of rice germplasm and breeding lines.

Key words: Oryza sativa L, Protein content, Near infrared reflection spectroscopy (NIRS), Model based on varieties, Model based on RILs

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