Comprehensive evaluation of new waxy maize varieties by DTOPSIS method

This study tested 17characters of 9 waxy maize varieties by DTOPSIS method，set up valuation matrix A，according to the breeding goals，obtained the matrix Z by dimensionless processing；set up decision matrix R， when different characters indexes were given different weights Wj，obtained the the positive ideal solution（X+j）and the negative ideal solution（X-j）of different characters，finally obtained the relative approach degree Ci，then judged the advantages and disadvantages of each variety，the higher the Ci value，the better the comprehensive characters. The results showed that the Ci values of 8 new waxy maizes were larger than Guinuo519（CK） and the comprehensive traits were better than Guinuo519（CK）. According to the order of Ci value，the top four waxy maizes were Yahang No.3，Tianguinuo932，Yindietiannuo773 and Tianguinuo937，indicating that the four varieties planted in spring showed higher yield and better quality，had good quality and great application value.