同源四倍体茄子育种的选择 Ⅰ.畸形僵果性状及植株结实力的选择  

Breeding Selection of Autotetraploid EggplantⅠ.Selection of Teratogeny-inactivation Trait and Fruiting Rate

作　　者：李树贤[1] 杨志刚[1] 吴志娟[1] 李明珠[1] 

机构地区：[1]新疆石河子蔬菜研究所,新疆石河子832001

出　　处：《西北农业学报》2003年第1期48-52,T001,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：九五"农业部重点科研项目(垦-06-07)。

摘　　要：二倍体茄子品种加倍为同源四倍体以后,普遍出现植株果实的畸形僵化是遗传引起的,与环境无关。果实的畸形僵化,常伴随着植株结果数的增多,控制这两个性状的为互斥连锁的两对基因,其交换值为38.77±1.78(36.91±5.78)。果实的畸形僵化(畸僵指数)与植株的分枝习性(株型指数)为直线负相关,y=0.5004-0.5552x。在开放授粉半同胞轮回聚合选择中,以趋向二倍体的弱株型为间接指标进行选择,其广义遗传力h2=98.72%±0.98%,相关遗传力hxy=97.89%,遗传变异系数GCV=26.49%,相关遗传进度CGSy=2.0552,选择效率98.6%。After different diploid eggplants are bred into autotetraploid, the general fruits are teratogeny and inactivation. The cause of the mutation is not environment, but inheritance. Teratogenyinactivation of fruit accompanied by multiply of fruit, which are controlled by two pairs of mutexchain genes, the austausch value is 38.77+1.78(36.91+5.78). Teratogenyinactivation index and divarication type index are negative correlation, y=0.5004-0.5552x. In the halfsib recurrent covergent cross selection of innerpopulation in open pollination, using trenddiploid weak plant type as indirect index to select, the comprehensive inheritance:h2=98.72%+0.98%, correlated inheritance: hxy=97.89%, genetic change value:GCV=26.49%, correlated genetic schedule:CGSY=2.0552, selection efficient is 98.6%.

关 键 词：茄子 四倍体 畸形僵果 株型 结实力 

分 类 号：S641.1[农业科学—蔬菜学]