优质杂交水稻新组合广8优6139的高产制种技术

High-yielding Seed Production Techniques of New High-quality Hybrid Rice Combination Guang 8 You 6139

广8优6139是绵阳市农业科学研究院利用广东省农业科学院水稻研究所选育的优质不育系广8A与自主选育的高产优质抗病恢复系绵恢6139配组育成的优质三系杂交籼稻新组合,2020年通过四川省农作物品种审定委员会审定。根据其亲本特性以及四川绵阳的气候特点,基于2018—2020年在绵阳的制种情况,总结了其高产制种技术。

Guang 8 You 6139 is a new high-quality late-maturing three-line indica hybrid rice combination developed by Mianyang Academy of Agricultural Sciences with the self-bred restorer line Mianhui 6139 with high yield,fine grain quality and good disease resistance and the high-quality CMS line Guang 8A from the Rice Research Institute of Guangdong Academy of Agricultural Sciences.It was registered and released by Sichuan Crop Variety Appraisal Committee in 2020.According to its parental characteristics and the climatic features of Mianyang in Sichuan,its highyielding seed production techniques were summarized based on the practice of its hybrid seed production in Mianyang from 2018 to 2020.