DIOPSIS法和灰色关联分析法对烤烟新品系综合评价效果比较

摘要

The comprehensive comparison on the many characters of high generations stable varieties in the regional test of flue -cured tobacco new varieties was conducted by using DIOPS1S and grey relation analysis methods. The results showed that two comprehensive evaluation methods had similar results, which conformed to the reality basically, according to the comprehensive consideration of the economic traits, resistance and quality indexes of flue -cured tobacco; but the difference among varieties obtained by DIOPSIS method was more obvious than that obtained by grey relation analysis method, so DIOPSIS method had better effect of evaluating the advantage and disadvantage of varieties.%运用DIOPSIS法和灰色关联分析法分别对烤烟新品系比较试验中的高代稳定品系进行了多性状的综合比较,结果表明,在综合考虑经济、抗性、品质指标的情况下,2种综合评价方法的分析结果基本一致,但DIOPSIS法分析结果的品种(系)间差异较灰色关联分析明显,能更好地评价品种(系)间的优劣.