1.The male abortion mostly occurred at the stage between telophase Ⅱ and uni-nucleate microspore formation.
雄性败育大多发生在四分体形成之后至核花粉粒形成之前。
2.Homogenous lines can be obtained in a very short time by haploidy breeding method such as microspore culture and anther culture.
摘要通过倍体育种途径可得纯合材料，增加有益性状的选择几率，加育种进程。
3.Cytokinesis at meiosis of microspore mother cells is modified simultaneous, and tetrads are decussate or isobilateral, occasionally linear.
四分体排列方式为交叉型或左右对称型,偶为直线型；
4.Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are tetrahedrally arranged.
花粉母细胞行减数分裂，细胞分裂属同时型，产生小孢子四分体，为四面体形。
5.A dedifferentiation of mitochondria and plastids in structure in microspore mother cells was observed at from diplonema/diakinesis to metaphase Ⅰ,then a redifferentiation at dyad stage.
;
核花粉粒形成之前。
得纯合材料，增加有益性状的选择几率，加
分裂属同时型，产生小孢子四分体，为四面体形。
