| 品种区域试验中算术平均值、 BLUP和AMMI估值的精度比较 |
| |
| 引用本文： | 张群远,孔繁玲,杨付新. 品种区域试验中算术平均值、 BLUP和AMMI估值的精度比较[J]. 作物学报, 2001, 27(4): 428-433 |
| |
| 作者姓名： | 张群远 孔繁玲 杨付新 |
| |
| 作者单位： | 中国农业大学植物遗传育种系，北京 100094 |
| |
| 基金项目： | 国家自然科学基金资助项目(30070433)。 |
| |
| 摘 要： | 利用1982年以来我国棉花、小麦、水稻和玉米的60套区域试验数据，采用交叉验证方法，对区域试验中算术平均值、最佳线性无偏预测值(best linear unbiased predictor,BLUP)和AMMI(additive main effects and multiplicative interaction)模型估值的预测精度进行比较，结果表明，与算术平均值相比，AMMI估值精度的增益倍数(gain
|
| 关 键 词： | 区域试验 BLUP AMMI 预测精度 |
| 收稿时间： | 2000-10-08 |
| 修稿时间： | 2000-10-08 |
Comparison of the Predictive Accuracy of Arithmetic Means and BLUPs and AMMIEstimates in Regional Crop Trials |
| |
| ZHANG Qun Yuan KONG Fan Ling YANG Fu Xin. Comparison of the Predictive Accuracy of Arithmetic Means and BLUPs and AMMIEstimates in Regional Crop Trials[J]. Acta Agronomica Sinica, 2001, 27(4): 428-433 |
| |
| Authors: | ZHANG Qun Yuan KONG Fan Ling YANG Fu Xin |
| |
| Affiliation: | ZHANG Qun Yuan 1 KONG Fan Ling 1 YANG Fu Xin 2 1 Department of Plant Genetics and Breeding,China Agricultural University,Beijing 100094, 2Institute of Cotton,Chinese Academy of Agricultural Science,Anyang 455112,China)[KH 3mmD][WT5HZ] |
| |
| Abstract: | Sixty sets of data from regional trials of cotton, wheat, rice and maize since 1982 in China were used in cross validation to compare the predictive accuracy of arithmetic means and BLUPs( best linear unbiased predictors ) and AMMI ( additive main effects and multiplicative interaction) estimates. The average precision gain factor(GF) of AMMI relative to arithmetic mean was 1.045 with a range from 0.963 to 1.414, which showed slight increases of precision; BLUP was found commonly to outperform arithmetic mean and AMMI with an average GF of 1.17, ranged from 1.008 to 1.619. |
| |
| Keywords: | Regional Trial BLUP AMMI Predictive Accuracy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《作物学报》浏览原始摘要信息 |
|
点击此处可从《作物学报》下载全文 |
