|
|
|
| Analysis about Correlation Heritability and Selection Indexes of Quantitative Characters of Tumorous Stem Mustard |
| LIU Yi-hua,ZHANG Zhao-rong,LENG Rong,ZHOU Guang-fan,FAN Yong-hong,XIAO Li,LI Juan |
| Fuling Institute of Agricultural Sciences,Chongqing 408000,China |
|
|
|
|
Abstract In the present experiment,23 tumorous stem mustard varieties were used to study the orrelative genetic relations with correlation heritability among the quantitative characters.Selection index was also evaluated between tumorous stem yield and quantitative characters that were significantly and hereditarily correlated with tumorous stem yield.The results showed that correlation heritability between quantitative characters and tumorous stem yield was below the heritability of tumorous stem yield.More analysis found that synthesis indirect selection had no distinct superiorities,and efficiency of indirect selection by vegetative duration corresponded to that of direct selection on yield.High yield breeding combining with strong ecological adaptability and good quality should be largely depended on later maturity and tumorous stem diameter or higher ratio of stem and leaf.
|
|
Received: 12 December 2008
|
|
|
|
|
|
|
|
|
