在毛主席的无产阶级革命路线指引下,一个群众性的杂交育种科学实验运动正在我国蓬勃发展。继玉米、高粱等作物杂种优势的推广应用之后,近几年来水稻雄性不育的研究已在湖南、北京、四川、广东、黑龙江、安徽等地开展起来,并取得了一定的进展。水稻是一种自花授粉作物。但据各地试验观察,大多数水稻品种不仅具有杂种优势,而且表现十分明显,一般可增产20—30%,有的 Guided by Chairman Mao’s proletarian revolutionary line, a mass experiment in hybrid breeding and scientific experiments is booming in our country. Following the popularization and application of the heterosis of crops such as corn and sorghum, the research on male sterility in rice has been carried out in Hunan, Beijing, Sichuan, Guangdong, Heilongjiang and Anhui in recent years and some progress has been made. Rice is a self-pollinating crop. However, according to the experimental observations around the world, most rice varieties not only have the heterosis, but also perform very clearly. Generally, the yield can be increased by 20-30%