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应用化学杂交剂Sc2053诱导小麦雄性不育的形态学和细胞学特征观察结果显示,经处理的小麦植株变矮,植株及麦穗呈现浅绿色,穗子呈爆裂状,花药不开裂,呈现雄性不育株的形态特征,这些特征可做为估算小麦群体化学杀雄效果即绝对不育率的依据。经Sc2053处理的小麦雄性不育有无花粉和花粉败育两种类型。无花粉型是在小孢子刚形成时即发生败育,从而产生无花粉的空壳型花药。花粉败育型是小孢子只发育到单核花粉,二胞花粉或不正常三胞花粉,或者只有花粉壁而无原生质体。无论何种情况,均未观察到花粉囊壁发育的异常现象。
Morphological and cytological characteristics of male sterility induced by Sc2053 in wheat were observed. The results showed that the treated wheat plants became shorter, the plants and ears were light green, the ears were burst, the anthers did not crack, and the male sterile The morphological characteristics of the strains, these characteristics can be used as a basis for estimating the chemical killing effect of wheat population that is the absolute rate of infertility. Sc2053-treated wheat male sterile with or without pollen and pollen abortion two types. Pollen-free is aborted when microspores are newly formed, creating a pollen-free shell-type anther. Pollen abortion type microspore development only to mononuclear pollen, diploid pollen or abnormal triple pollen, or only the pollen wall without protoplasts. In any case, no abnormalities in pollen wall development were observed.