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提高杂交稻制种产量是降低水稻种子生产成本、加速杂交稻推广的有效途径之一。试验选用杂交粳稻“秋优金丰”亲本-R44和秋丰A为材料,对两亲本的生育特性和开花习性进行观察,开展了一系列杂交粳稻“秋优金丰”相关制种技术和栽培技术的研究。结果表明,采用机插秧、割叶处理、适宜的肥水,以及“920”农药对制种亲本的穗位差和花期的调节等处理有利于杂交制种产量的提高。这为该品种的大面积推广提供相应的技术支持。
Increasing the yield of hybrid rice is one of the effective ways to reduce the cost of rice seed production and accelerate the popularization of hybrid rice. The hybrid rice “Qiuyou Jinfeng” “Parents-R44 and Qiufeng A were selected as experimental materials to observe the fertility and flowering habits of the parents. A series of related systems of japonica hybrid rice” Qiuyoujinfeng “ Research on techniques and cultivation techniques. The results showed that the treatment of transplanted rice, cutting leaf, suitable fertilizers and ”920 " pesticides on the spike position and flowering stage of the progeny parents were beneficial to the increase of hybrid seed production. This is the large-scale promotion of the species to provide the appropriate technical support.