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三系杂交水稻“丰田优089”高产制种技术

2021-04-05梁益珍韦宇夏州藩粟学俊梁曼玲

广西农学报 2021年6期
关键词:高产

梁益珍 韦宇 夏州藩 粟学俊 梁曼玲

摘要:“丰田优089”是利用不育“丰田IA”与“桂恢089”配组育成的感光型优质杂交稻品种,适合在华南南部做晚稻种植。文章对其选育经过、特征特性、产量表现和制种技术要点进行总结,重点阐明基地选择、确定亲本播差期、培育多蘖壮秧、田间科学管理、花期预测与调节以及巧施“九二〇”等高产制种技术,为三系杂交水稻“丰田优089”大面积制种提供科学技术指导。

关键词:杂交水稻;丰田优089;高产;制种技术

中图分类号:S511 文献标识号:A 文章编号:1003-4374(2021)06-0010-04 High-yielding Seed Production Technology of Three-Iine Hybrid Rice "Fengtianyou No. 089"

Liang Yi-zhen1. Wei Yu1. Xia Zhou-fan2, Su Xue-jun1, Liang Man-ling*l ( l.Rice Research Institute , Guangxi Academy of Agricultural Sciences / Guangxi Key Laboratory of

Rice Genetics and Breeding, Nanning, Guangxi 530007. China; 2. Guangxi Jinka Agricultural

Science and Technology Co. ,ltd, Nanning, Guangxi 530007. China)Abstract: "Fengtianyou No. 089" is a high-quality light-sensitive hybrid rice variety bred by crossingsterile "Fengtian No. 1A"and "Guihui No. 089". which is suitable for late rice planting in southernChina. In this paper, the breeding process. characteristics, yield performance and key points of seedproduction technology were summarized. and the high-yield seed production technologies such as baseselection determination of parental sowing date. cultivation of strong seedlings with multiple tillers,seientific management in the field. flowering prediction and regulation, and skillful application of"920"were emphatically expounded, which provided scientific and technological guidance for large-scale seed production of three-line hyhrid rice "Fengtianyou No. 089".Keywords: hybrid rice, Fengtianyou No. 089. high yield, seed production technology

“豐田优089”是在优质高产、抗性好、适应广选育目标的指导下,由广西农业科学院水稻研究团队利用不育系“丰田IA”与“桂恢089”配组育成的感光型优质杂交稻品种,于2015年通过广西农作物品种审定(桂审稻2015022号),适合在华南南部做晚稻种植,该品种表现植株株型较紧凑,抗病、抗倒,山区或平原种植都易获高产,适应性强,且米质优商品性好,米饭香软不黏,冷后不硬实,受到广大种植户的一致好评。“丰田优089”亲本异交结实率高、制种产量高,2016-2020年,在广西南宁市累计制种面积达346.67hm2,大面积制种平均产量为3324 kg/hm2。经过几年在广西多地制种生产,基本掌握“丰田优089”亲本的生育期、生长发育特点、种子结实等特性。现结合广西南部气候和制种资料分析,将“丰田优089”的高产制种技术进行归纳总结,为大面积制种提供技术指导。

1 选育经过

1.1 不育系“丰田1A”特征特性

“丰田IA”株高约70cm,株叶型集散适中,分蘖力较强,生长势旺,稻叶鞘绿色……

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