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Acta Agron Sin ›› 2010, Vol. 36 ›› Issue (11): 1870-1876.doi: 10.3724/SP.J.1006.2010.01870

• CROP GENETICS & BREEDING·GERMPLASM RESOURCES·MOLECULAR GENETICS • Previous Articles     Next Articles

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 Online:2010-11-12 Published:2010-08-30
  • Contact: WANG Jian-Min,E-mail:wanjm@caas.net.cn

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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

[1]Cochran W G, Cox G M. Experimental Designs, 2nd edn. London: John Wiley, 1957
[2]Lin C S, Binns M R. The precision of cultivar trials within eastern cooperative tests. Can J Plant Sci, 1984, 64: 587–591
[3]Yu S-R(俞世蓉),Wu Z-S(吴兆苏). Discussions on some problems in the regional tests of wheat cultivars. Sci Agric Sin (中国农业科学), 1986, 19(3): 20- 25 (in Chinese with English abstract)
[4]Yu S-R(俞世蓉), Wu Z-S(吴兆苏). Studies on the precision of cultivar regional tests. Sci Agric Sin (中国农业科学), 1987, 20(6): 10–16 (in Chinese with English abstract)
[5]Yu S-R(俞世蓉), Lu Z-M(陆作嵋), Zhou Y-Z(周毓珍), Zhu L-X(朱连先). Regional evaluation of cultivars in wheat cultivar registration. Sci Agric Sin (中国农业科学), 1995, 28(3): 87–93 (in Chinese with English abstract)
[6]Kong F-L(孔繁玲), Zhang Q-Y(张群远), Yang F-X(杨付新), Guo H-M(郭恒敏). Studies on the precision of regional cotton variety trials. Acta Agron Sin (作物学报), 1998, 24(5): 602–607 (in Chinese with English abstract)
[7]Zhang Q-Y(张群远), Kong F-L(孔繁玲), Liao Q(廖琴), Yang F-X(杨付新), Wang L(王磊). Evaluation system and methods for regional crop trials. System Sciences and Comprehensive Studies in Agriculture (农业系统科学与综合研究), 2000, 16(2): 81–86 (in Chinese with English abstract)
[8]Zhang Q-Y(张群远), Kong F-L(孔繁玲), Yang F-X(杨付新). Evaluation of the precision of regional crop trials in China. J China Agric Univ (中国农业大学学报), 2001, 6(1): 43–50 (in Chinese with English abstract)
[9]Kong F-L(孔繁玲), Zhang Q-Y(张群远), Ge Z-N(葛知男), Yang F-X(杨付新), Zhang D-G(张德贵), Liu W-X(刘文欣). Experiment precision and variety comparison precision in regional crop trials. Sci Agric Sin (中国农业科学), 2001, 34(3): 266–271 (in Chinese with English abstract)
[10]Chen Y-Z(陈应志), Zhang Q-Y(张群远), Kong F-L(孔繁玲). Studies on the accuracy of national soybean variety regional trials. Soybean (大豆通报), 2006, 80(1): 9-15 (in Chinese with English abstract)
[11]Cao W-M(曹雯梅), Zhang G-F(张根峰), Zhao H(赵虹), Zhao W(赵威), Li X-H(李学会). Evaluation of experiment precision and variety comparison precision in national wheat variety regional trials. China Seed Indust (中国种业), 2009, (6): 32–34 (in Chinese)
[12]Chen Z-D(陈志德), Zhong W-G(仲维功), Wang C-L(王才林), Yang J(杨杰), Zhang H-S(张红生). Precision evaluation of rice regional trials in Jiangsu province. Jiangsu J Agric Sci (江苏农业学报), 2006, 22(3): 199–204 (in Chinese with English abstract)
[13]Yu Q-Y(俞琦英). Study on precision and variety comparison precision in table maize regional trials in Zhejiang province. Acta Agric Zhejiangensis (浙江农业学报), 2006, 18(4): 207–211 (in Chinese with English abstract)
[14]Chen H-M(陈洪梅), Yang J-Y(杨峻芸), Tan J(谭静). Analysis of experimental precision and grey integrative evaluation of varieties in maize regional trials. Southwest China J Agric Sci (西南农业学报), 2004, 17(suppl): 228–232 (in Chinese with English abstract)
[15]Zhang Q-Y(张群远), Kong F-L(孔繁玲), Yang F-X(杨付新). Models and methods for estimating variety means in regional crop trials—comparisons of arithmetic mean, weighted least squares estimates and BLUPs. Acta Agron Sin (作物学报), 2003, 29(6): 884–891 (in Chinese with English abstract)
[16]Zhang Q-Y(张群远), Kong F-L(孔繁玲). Comparison of statistical models for regional crop trial analysis. Sci Agric Sin (中国农业科学), 2002, 35(4): 365–371 (in Chinese with English abstract)
[17]Zhang Q-Y(张群远), Kong F-L(孔繁玲), Yang F-X(杨付新). Comparison of the predictive accuracy of arithmetic means and BLUPs and AMMI estimates in regional crop trials. Acta Agron Sin (作物学报), 2001, 27(4): 428–433 (in Chinese with English abstract)
[18]Zhang Q-Y(张群远), Kong F-L(孔繁玲), Yang F-X(杨付新). Optimizing the experimental design of regional crop trial by nonlinear program. Sci Agric Sin (中国农业科学), 2000, 33(4): 25–30 (in Chinese with English abstract)
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