ÃÞ »¨ ѧ ±¨ Cotton Science 2008£¬20(6)£º408-413
Studies on Morphological and Cytological Features of Thermo-sensitive Sterile Line Temian S-1(Gossypium hirsutum) Abstract£ºThe thermo-sensitive male sterility and comparative line D7 were used as materials, and systemic studies on morphological and cytological characteristics were included in the paper. The main results are as follows: the floral apparatus of Temian S-1 is significantly smaller than that of D7, but all other morphological features of them are almost same. The results of cytological studies showed that the anther abortion of Temian S-1 occurred during the stage of tetrad formation, and the abortion has following characteristics: degenerative PMC, PMC without capsule, non-synchronous division of nucleolus and cytoplasm, multiple spores, abnormal pollen grains, linked pollen grains and dissolved tapetum.
|