不同类型雄性不育细胞质对我国玉米小斑病菌侵染的反应及其利用前途

THE RESPONSES OF ZEA MAYS WITH DIFFERENT MALE-STERILE CYTOPLASM TO INFECTION OF HELMINTHOSPORIUM MAYDIS IN OUR COUNTRY AND THEIRPROSPECTS IN APPLICATION

从室内和田间大量玉米材料的抗病性鉴定结果看出:三组(group)不同类型雄性不育细胞质,其抗病性顺序是:S组较抗,其次是C组,T组最差.同时,组内不同类型(type)之间在抗病性上也存在着明显差异,因此,为研究发展多质系的利用提供了依据.

According to determination of resistance in laboratory and field conditions in large number of corn materials, we reached a conclusion that there were three groups of corn with different male-sterile cytoplasm: corn with S-cytoplasm was more resistant than those with C cytoplasm, and corn with T cytoplasm was most sensitive to Helminthosporium maydis. However, there were apparentely differences among different types of CMS with same cytoplasm. Therefore, it provides a posibility to use multi-cytoplasm line of corm.