小麦不同类型父本对F2代主要农艺性状变异的影响

试验采用龙麦 2 6为母本 ,东 12 3、东 97- 40 5 6、野猫为父本的三个杂交组合及其F2 代为试验材料 ,采取随机区组的试验设计 ,测定了亲本及F2 代 12个主要农艺性状 ,对数据进行方差分析。由数据分析结果可以看出 ,不同类型的父本对F2 代几个主要农艺性状的影响效果不同。在株高、分蘖、主穗有效小穗数、单株粒重和收获指数上 ,父本对后代遗传控制效果明显。对不同组合应采取不同的策略 ,才有利于选育高产优质的小麦品种。

The Influence of Male Parent Type on the Variance of Main Agronomic Traits in F2

Spring wheat variety Longmai 26 was used as female parent to cross with 3 varietis or lines including Dong123,Dong97-4056 and wildcat.The Crossing parents and their F_2 plants were planted in field according the random block design.12main agronomic Characters were determined and analyzed statistically for F_2 plants and their parents.The results show that different male parent has various influences on several main agronomic traits in F_2.On some characters like plant height,tiller number,available spikelet number of main spike,grain weight per plant and harvest index,and effect of male parents on genetic controlling of hybrid descendent.To breed wheat variety with high yield and quality strategies would be used according to different cross combinations.