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作物学报 ›› 2010, Vol. 36 ›› Issue (11): 1870-1876.doi: 10.3724/SP.J.1006.2010.01870

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

北方稻区国家水稻品种区域试验精确度分析

王洁1,3,廖琴2,胡小军2,万建民1,*   

  1. 1中国农业科学院作物科学研究所 / 农作物基因资源与基因改良国家重大科学工程，北京100081；2全国农业技术推广服务中心，北京100125；3中国农业大学农学与生物技术学院, 北京100193
  • 收稿日期:2010-04-26 修回日期:2010-07-05 出版日期:2010-11-12 网络出版日期:2010-08-30
  • 通讯作者: 万建民, E-mail: wanjm@caas.net.cn
  • 基金资助:

    本研究由农业部国家水稻区试项目(1999—2008)资助。

Precision Evaluation of the Rice Variety Regional Trials in Northern China

WANG Jie1,3,LIAO Qin2,HU Xiao-Jun2,WAN Jian-Min1,*   

  1. 1 Institute of Crop Sciences, Chinese Academy of Agricultural Sciences / National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing 100081,China; 2 National Agricultural Technology Extension and Service Center, Beijing 100125, China; 3 College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
  • Received:2010-04-26 Revised:2010-07-05 Published:2010-11-12 Published online:2010-08-30
  • Contact: WANG Jian-Min,E-mail:wanjm@caas.net.cn

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1749

被引次数

24

摘要： 以1999—2008年北方稻区国家水稻品种区域试验(共计463个点次) 10年数据为依据，在一年一点和一年多点两个层次上对北方稻区国家水稻品种区域试验的精确度进行了研究。结果表明: (1)一年一点试验层面上，所有试点平均试验误差变异系数(CV)为4.3%，平均相对最小显著差数(RLSD)为7.4%，绝大多数试点的CV和RLSD控制得较好，试验精确度和品种比较精确度均较高。(2)一年多点试验层面上，绝大多数组别的CV在5%以内，RLSD在3%以内，试验精确度较高，品种比较精确度能够满足国家品种审定的要求。(3)在现有试验方案下，降低试验误差是提高一年一点试验精确度的主要途径；除降低试验误差外，适当增加试点数是提高一年多点试验精确度的有效选择。

关键词: 区域试验, 变异系数, 相对最小显著差数, 试验精确度, 品种比较精确度

Abstract: Crop variety regional trial is the basis of variety registration. The precision of regional trial directly influences the merits of approved varieties. According to new national certification standards, new rice varieties should yield more than 3% compared with the control, requiring much higher precision of the experiments. Since 1999, the national rice regional trials in northern China have been implemented for 10 years. It is extremely important for the variety approval committee to known that whether or not the experiments precision can reach the national registration requirements. Based on the data from rice variety regional trials in northern China from 1999 to 2008, we analyzed the experiment error precision (EP) and variety comparison precision (VCP) at two experiment levels. The results was as follows: (1)The average coefficient of variation (CV) and relative LSD (RLSD) in one-location-one-year experiments were 4.3% and 7.4% respectively, indicating the trials were well controlled. Both EP and VCP in one-location-one-year experiments were desirable. (2)The average CV and RLSD in most of multi-location-one-year experiments were lower than 5% and 3% respectively. The EP and VCP in multi-location-one-year experiments were desirable and met the requirements of the State Variety Approval. (3) Under the existing design of experiments，reducing experimental errors in the trials is the main way to improve the accuracy of one-location-one-year experiment. In addition to reducing experimental errors in the trials, the appropriate increase in the number of experiment sites is also a very effective choice to improve the accuracy of multi-location-one-year experiments.

Key words: Regional trial, Coefficient of variation, Relative LSD, Experiment precision, Variety comparison precision

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