杂交水稻机械化混播制种技术研究进展

杂交水稻种植已在全球推广应用,而杂交水稻制种成本偏高、程序繁琐已成为杂交水稻发展的一个瓶颈.笔者从水稻资源创制、品种选育、混播制种技术研究和成本效益分析等几个方面,介绍了杂交水稻机械化混播制种技术方面的研究进展.通过对可机械化混播制种组合“新混优6号”的混播制种技术进行研究,包括除草剂苯达松的用药时期和用药量、父母本的混合比例和不同播种方式比较试验等混播制种技术进行研究和验证,说明杂交水稻全程机械化制种技术成熟可行,是杂交水稻生产技术发展的重要发展趋势之一.

Research Progress on Mechanized Mixed Sowing Seed Production Technology of Hybrid Rice

Hybrid rice planting has been widely popularized and applied in the world.However,the high cost of seed production and the complicated procedures have become a bottleneck in the development of hybrid rice.The research progress on mixed sowing seed production techniques of hybrid rice was introduced from the aspects of rice resources creation,breeding,sowing seed technology research and cost benefit analysis.The production technology of the new mixed seeding combination "Xinhunyou 6" was investigated,including the research and validation of bentazon treatment period and dosage,mixing ratio of male and female parents,and the comparative test of different different sowing methods,which revealed that the mechanization technology of seed production of hybrid rice was mature and feasible and would be one of the most important development trend of technological development of hybrid rice production.