基于DTOPSIS法的黑龙江省联合体参试玉米品种(系)综合评价

Comprehensive Evaluation of Maize Varieties(Lines)Tested in Heilongjiang Province Union by DTOPSIS Method

为筛选出综合性状优良的玉米品种(系),本研究对黑龙江省联合体玉米试验的19个品种(系),采用熵值赋权的DTOPSIS法对其12个性状进行综合分析及评价。结果表明:参试品种(系)HT53产量与C_(i)值(C_(i)=0.9960)排名皆为第1位,说明HT53无论产量性状还是其他性状综合表现都较其他参试品种(系)突出;比对照XY696高产的品种(系)HT52、QY81,产量排名分列第4位和第6位且与其C_(i)值排名差异不大,说明HT52、QY81在产量及综合性状上表现优良;低产品种(系)FH18、HY428、HNY8产量排名与其C_(i)值排名相比差异较小,说明这类品种(系)在产量及综合性状上表现较差;具有秃尖短、出籽率较高、抗病性好等优点的品种(系)PY18、PY19,其C_(i)值排名较产量排名上升幅度较大;ND39产量排名第3位,而其C_(i)值排名第16位,因为其抗病、秃尖等性状表现较差。综上,可以看出运用熵值赋权的DTOPSIS法能够客观、科学合理地对联合体参试玉米品种(系)进行综合评价。

In order to screen maize varieties(lines)with excellent comprehensive characters,19 maize varieties(lines)tested in the Heilongjiang Province union were comprehensively analyzed and evaluated by DTOPSIS method with entropy empowerment.The results showed that the ranking of yield and Ci value(Ci=0.9960)of the tested line HT53 was the first.This indicated that HT53 had better comprehensive performance in yield and other traits than other tested line.HT52 and QY81,the higher yield line compared with XY696,ranked 4th and 6th respectively in yield trait.And there was no significant difference between yeild ranking and Ci value ranking.This indicated that HT52 and QY81 had excellent performance in yield and comprehensive characters.The yield ranking of low-yielding line FH18,HY428 and HNY8 had little difference compared with its Ci value ranking,indicating that these line had poor performance in yield and comprehensive traits.The Ci value ranking of PY18 and PY19,which had the advantages of short bald tip,high seed emergence rate and good disease resistance,increased significantly compared with yield ranking.The yield of ND39 ranked the 3rd,and its Ci value ranked the 16th,because of its poor performance in traits such as disease resistance and bald tip.To sum up,it can be concluded that the maize varieties(lines)tested in the Heilongjiang Province union can been evaluated by the DTOPSIS method with entropy empowerment objectively,scientifically and rationally.