水稻是自花受粉的小谷粒作物,由于花器小,开花时间短,进行人工杂交比较困难.在杂交时去雄是第一步工作,去雄方法的好坏,对于杂交的结实率、种子的好坏以及后代都有很大的影响.以往常用的有三种:(一)剪颖去雄,这个方法缺点很多,主要是杂交结实率很低,种子结实不饱满及种子发育不正常致影响到下一代.(二)温汤去雄,这个方法比剪颖去雄大大提高了一步,但也有它的缺点, Rice is a self-pollinated small grain crop, which is difficult to cross by hand because of its small flower and short flowering time.Exhibition of male is the first step in the process of hybridization, Good and bad as well as the offspring have a great influence.Previously used in three ways: (a) shearing Yingxiong, this method has many disadvantages, mainly low seed setting rate, seed fullness and seed development is not normal caused The next generation. (Two) Wen Tang to male, this method greatly improves the step than shears, but it also has its shortcomings,