| 长江中下游薯区甘薯品种区试的精确度分析 |
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| 引用本文： | 苏春华,杨红康,李育明.长江中下游薯区甘薯品种区试的精确度分析[J].西华师范大学学报(哲学社会科学版),2007,28(1):87-90,98. |
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| 作者姓名： | 苏春华 杨红康 李育明 |
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| 作者单位： | 国家甘薯改良中心南充分中心,四川南充637000 |
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| 摘 要： | 对2000-2005年全国甘薯区试长江中下游薯区试验资料从3个层次上分析了试验精确度（EP）和品种比较精确度（VCP）．结果表明，单年多点试验的EP和VCP都比较好；单年单点和2年多点试验的EP可以得到保证，但其VCP偏低．同时表明同一试验以鲜薯产量、薯干产量、淀粉产量分别计算的同一精确度指标值之间存在一定关系．总结提出了改进甘薯区试精确度的途径．
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| 关 键 词： | 甘薯 区试 试验精确度 品种比较精确度 |
| 文章编号： | 1673-5072（2007）01-0087-04 |
| 修稿时间： | 2006-10-25 |
Evaluation of the Precision in Sweetpotato Regional Trial in Middle to Low Reaches of the Yangtze River |
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| SU Chun-hua,YANG Hong-kang, LI Yu-ming.Evaluation of the Precision in Sweetpotato Regional Trial in Middle to Low Reaches of the Yangtze River[J].Journal of China West Normal University:Natural Science Edition,2007,28(1):87-90,98. |
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| Authors: | SU Chun-hua YANG Hong-kang LI Yu-ming |
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| Institution: | National Center of Sweetpotato Genetics Improvement, Nanchong 637000, China |
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| Abstract: | To study the experiment error precision(EP) and variety comparison precision(VCP) of sweetpotato regional trials,data of sweetpotato regional trials in middle to low reaches of the Yangtze River during 2000 to 2005 were analyzed.The results showed: the EP and the VCP of multi-location-one-year experiments was desirable;the EP of one-location-one-year and one-location-two-year experiments was desirable;but the VCP of one-location-one-year and one-location-two-year experiments was low to need to raise. The results also showed: computed with fresh yield and dried yield and starch output at the same trail,the result of evaluation of the precision existed a certain relation.Finally,some precision-improving approaches for sweetpotato regional trials were proposed and summarized. |
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| Keywords: | sweetpotato regional trial experiment precision variety comparision precision |
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