南方农业学报2012，Vol.43Issue(9)：1273-1276,4.DOI:10.3969/j:issn.2095-1191.2012.09.1273
栽培稻再生性遗传及育种技术探讨
Exploration on ratooning inheritance and its breeding technology of cultivated rice
摘要
Abstract
[Objective]Ratooning inheritance regularity of cultivated rice was analyzed to provide references for inno-vatively breeding ratooning rice and producing ratooning rice related materials. [Method]Through introducing common wild rice cultivar ratooning into cultivated rice and hybridization between indica and japonica rice, new high-quality rice lines with good ratooning were obtained. To analyze the ratooning inheritance regularity of cultivated rice, performance of their F1 and F2 traits associated with ratooning ability were examined. [Result]The plant height, tillers, grains per panicle, and ratooning rice yield were dominant in two F1 combinations from the line 96-82, which was bred from hybridization between wild and cultivate rice; the ratooning ability of two F1 combinations reached grade 2 and 3, respectively. The plant height, tillers, grains per panicle, and ratooning rice yield in the three indica and japonica hybridized combinations were significantly higher than that of their parents, in which all of their ratooning ability reached grade 1. By introducing ratooning a-bility of common wild rice cultivar into cultivated rice and hybridization between indica and japonica rice, three new rice lines with fine tilling ability were produced viz., Ratooning rice l(Gui Dl/96-82), Ratooning rice 2 (Minghui 63//Gui99/ 96-82), and Ratooning rice 3 (Gui 99/Zhonghan3// Minghui 63). Ratooning rice 3 was bred with upland rice variety Zhonghan 3 as the parent plant. [ Conclusion ] Ratooning ability of 96-82 with stronger genetic transmission and dominant traits are separated in F2 generation; thereby the ability is considered to be of quantitative inheritance. Three new rice lines with application potential were obtained.关键词
栽培稻/再生性/遗传规律/育种Key words
cultivated rice/ ratooning ability/ inheritance regularity/ breeding分类
农业科技引用本文复制引用
李道远,唐庚生,朱汝财,秦学毅,唐建淮..栽培稻再生性遗传及育种技术探讨[J].南方农业学报,2012,43(9):1273-1276,4.基金项目
广西自然科学基金项目(桂科自0448042) （桂科自0448042）
