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改进杂交水稻的制种技术,进一步提高产量和质量,是推广杂交水稻的一个关键环节。近些年来,各地通过试验研究,总结经验,不断改进,使杂交水稻的制种技术日趋完善。1983年杂交水稻制种产量出现了新的突破,南方十三省、市、区制种208万亩,平均亩产达到155斤,比1982年的119斤增加36斤,提高30.2%,湖南、四川两省平均亩产超过200
Improving the seed production technology of hybrid rice and further improving the yield and quality are the key steps to popularize hybrid rice. In recent years, all over the country have made improvements in the seed production technology of hybrid rice through experimental research, summing up experiences and continuous improvement. In 1983, there was a new breakthrough in seed production of hybrid rice. In the south of the country, 208 million mu of seed were planted and the average mu yield reached 155 kg, 36 kg more than 119 pounds in 1982, an increase of 30.2%. Hunan, The average yield per mu in Sichuan and Sichuan Province exceeded 200