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以1993-2002年水稻育种品种比较试验数据为资料,分组对10年试验的误差变异系数(CEV)和相对最小显著差数(RLSDα)进行计算,结果表明,早中熟组的CEV 在2.34%~9.46%之间,平均为4.95%;晚熟组的CEV在3.72%~8.78%之间,平均为5.80%。相对而言,品比试验早中熟组的误差小于晚熟组。从10年的平均数来看,早中熟组试验中只能鉴别出的品种最小差异为8.72%,晚熟组中只能鉴别出品种最小差异为10.28%。
Based on the data of comparative test of rice breeding varieties from 1993 to 2002, the error of variation coefficient (CEV) and the relative minimum significant difference (RLSDα) of 10-year trial were calculated. The results showed that the CEV of early maturity group was 2.34% ~ 9.46%, an average of 4.95%; CEV of late-ripening group was between 3.72% ~ 8.78%, with an average of 5.80%. Relatively speaking, the error of early maturity test was lower than that of late maturity test. According to the average of 10 years, the minimum difference of the varieties which can only be identified in the early middle-aged group test was 8.72%, and the lowest difference of the varieties in the late-ripening group was only 10.28%.