水稻杂交优势利用,就是用两个不同遗传类型的品种,采取一定的方法,造成母体雄性不育,进行大量杂交,从而产生具体分蘗力强,根系发达,机能旺盛,茎秆粗壮,穗大粒多粒重,产量高的第一代种子,是夺取水稻高产的一种新途径。一九五八年日本最早开展对水稻杂交优势利用的研究,随之美苏等国也进行试验,但由于社会制度所限,至今未能应用于生 The advantage of hybridization of rice is to use two different genetic types of varieties, to take certain methods, resulting in male sterility, a lot of hybridization, resulting in specific tillering ability, developed root system, strong function, stem sturdy, spike large grain The first generation of seeds with high grain weight and high yield is a new way to capture high yield of rice. In 1958, Japan first carried out research on the superior utilization of hybridization in rice. After that, the United States and the Soviet Union also conducted experiments. However, due to the limited social system, they have not been applied to students