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当前位置: 首页 > 文章 > 栽培稻再生性遗传及育种技术探讨 南方农业学报 2012,43 (9) 1273-1276
Position: Home > Articles > Exploration on ratooning inheritance and its breeding technology of cultivated rice Journal of Southern Agriculture 2012,43 (9) 1273-1276

栽培稻再生性遗传及育种技术探讨

作  者：
李道远;唐庚生;朱汝财;秦学毅;唐建淮
单  位：
广西农业科学院水稻研究所
关键词：
栽培稻;再生性;遗传规律;育种
摘  要：
【目的】分析栽培稻再生性的遗传规律,为创新再生稻育种材料奠定基础。【方法】通过把普通野生稻再生性导入栽培稻和籼粳杂交诱变,获得再生性强的材料,考查其F1和F2中与再生性相关的性状表现,分析栽培稻再生性的遗传规律。【结果】在野栽交品系96-82的两个F1中,再生稻的株高、分蘖数、每穗粒数及产量均为部分显性,两个组合的再生性分别达2级和3级;3个籼粳杂交组合F1再生稻的株高、分蘖数、每穗粒数及产量均明显超过双亲,再生性均达1级。把普通野生稻再生性导入栽培稻和籼粳杂交诱变,育成地下再生分蘖性较强的3个新品系,再生稻1号(桂D1号/96-82)、再生稻2号(明恢63//桂99/96-82)及以陆稻中旱3号作亲本育成再生稻3号(桂99/中旱3号//明恢63)。【结论】野栽交品系96-82再生性的遗传传递力较强,表现为部分显性,再生性从F2起出现分离,属于数量遗传。选育的3个新品系具有应用潜力。
译  名：
Exploration on ratooning inheritance and its breeding technology of cultivated rice
作  者：
LI Dao-yuan,TANG Geng-sheng,ZHU Ru-cai,QIN Xue-yi,TANG Jian-huai(Rice Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,China)
关键词：
cultivated rice;ratooning ability;inheritance regularity;breeding
摘  要：
[Objective]Ratooning inheritance regularity of cultivated rice was analyzed to provide references for innovatively 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 ability 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 1(Gui D1/96-82),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.

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