栽培稻再生性遗传及育种技术探讨

【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...

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Bibliographic Details
Published in南方农业学报 Vol. 43; no. 9; pp. 1273 - 1276
Main Author 李道远 唐庚生 朱汝财 秦学毅 唐建淮
Format Journal Article
LanguageChinese
Published 广西农业科学院水稻研究所,南宁,530007 2012
Subjects
再生性
栽培稻
育种
遗传规律
育种
再生性
栽培稻
遗传规律
Online AccessGet full text
ISSN2095-1191
DOI10.3969/j:issn.2095-1191.2012.09.1273

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Summary:【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。
Bibliography:45-1381/S
cultivated rice; ratooning ability; inheritance regularity; breeding
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）
[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
ISSN:2095-1191
DOI:10.3969/j:issn.2095-1191.2012.09.1273