木挺和孚尔拉玉米母本单交种亲缘关系初步分析

通过玉米品种木挺和孚尔拉母本单交种自交选育二环系,对所选育的自交系进行配合力测定和各代农艺性状观察表明,所有的自交系配合力和农艺性状基本一致。将自交系配成单、三交种与引进的单,三交种进行产量比较试验,两者产量及农艺性状基本相同。为从理论上验证两个母本单交种的亲缘关系,对引进和自育的母本单交种进行同功酶测定,两者酶谱相同。通过以上分析,初步证明木挺、孚尔拉母本单交种亲本是由同一基本材料的不同系或姊妹系组成。

PRELIMINARY ANAIYSIS ON THE SIBSHIP OF PARENT COMPOSITION OF THE GERMAN CORN TRIPLE-HYBRID MUTIN -FORLA MATERNAL INTERLINEAR-HYBRID

By selecting inbred lines from offspring of Mutin, Forla maternal interlinear hybrid,testing the combining ability and observing agronomic characters in every generation to these inbred lines. It has been found that all of these inbred lines shows there is no difference in agronomic characters. Further the single & three-way crosses have been made from these inbred lines and the comparative test between these single.three-way cross and exotic ones form Germany have showed that the yields and agronomic characters are same on the whole. For rigorouly proveing the sibship of the parent conpositions to the two maternal single cross seeds. It has been found by determination of isoenzyme to the sel.cutured and the alien maternal single cross seeds and have found that the isoenzyme electrophgram are same. The primenary testify have showed that the parents of Mutin. Forla maternal single cross seed are made up of the inbred lines from the same basic material-or sibing lines.