In order to utilize heterosis effectively, 12 maize inbred lines were used for genetic parameter, correlation and cluster analysis by DPS software.The results showed that Line grain number, Ear rows, ear length, ear height, spike crude and plant height had higher heritability than other traits, associated with 88.87％ 、88.86％ 、87.80％ 、83.36％ 、77.57％ and 74.78％ respectively.Dry weight and dry weight of grains had higher genetic progress than other traits, with 48.85 and 42.30, higher variation coefficient, with 38.5％ and 43.7％, and had better selected effects.Weight per ear had very? significantly positive correlation with spike length,Line grain number and grain weight, and significantly positive correlation with spike crude.The tested strains were divided into six groups using the shortest distance method at euclidean distance 35.8.Of which, the third and sixth class inbred lines had lighter grain weight and underdeveloped male spike, consists of 3, 6, 11 and 4 inbred lines, and 5, 8 and 12 inbred lines, respectively.Zheng 58 and 0732 is fit to be female parent and male parent respectively.Methods of short distance showed that of Zheng-58 and Chang7-2 had farest genetic distance with higher heterosis.Liangyu-88 and 0708 can not be combinated because of the shortest genetic distance.
NETL
NSTL
万方数据
维普
