籼型杂交水稻主要品质性状遗传力和配合力分析  

Combining Ability and Heritability on Quality Traits of Indica Hybrid Rice

作　　者：郑轶[1,2] 周鹏[1,2] 涂诗航[1,2] 林强[1,2] 游晴如[1,2] 王鸿飞[1,2] 黄庭旭[1,2] 梁康迳[1,2] 

机构地区：[1]福建省农业科学院水稻研究所,福建福州350018 [2]福建农林大学作物遗传育种与综合利用教育部重点实验室,福建福州350002

出　　处：《福建农业学报》2014年第12期1174-1179,共6页Fujian Journal of Agricultural Sciences

基　　金：华南稻区强优势水稻杂交种的创制与应用(2011AA10A101);福建省现代农业水稻产业技术体系(闽财指[2009]528);福建省财政专项--福建省农业科学院科技创新团队建设项目(CXTD-2-1312)

摘　　要：以5个不育系和5个恢复系为材料,采用不完全双列杂交设计研究水稻25个主要品质性状配合力和遗传力的表现规律。结果表明:米质性状一般配合力差异达显著或极显著水平,一般配合力基因型方差占遗传总方差的比重显著大于特殊配合力占遗传总方差的比重;粒长、垩白粒率、垩白度、碱消值和胶稠度等受不育系影响较大,糙米率、精米率、整精米率和直链淀粉受恢复系影响较大;各性状狭义遗传力大小顺序为:垩白粒率>垩白度>粒长>整精米率>碱消值>直链淀粉含量>精米率>糙米率>胶稠度;亲本EF14A和福恢2108在改良组合米质方面有一定的利用价值。Five sterile and 5 restoring lines of Indica rice were selected to study their combining abilities and heritabilities on 25 quality traits using an incomplete diallele cross design.The results showed that （a）the combining abilities of all selected traits differed significantly,and the ratio of genotypic variance to the entire genotypic variance of the general combining ability was significantly higher than that of the specific combining ability;（b）the grain length,percentage of chalky grain,chalkiness degree,alkali spreading value and gel consistency were affected mainly by the sterile line,while the brown rice percentage,milled rice rate,head rice yield and amylase by the restorer line;（c）the narrow heritability of the traits were in the order of：percentage of chalky grain,chalkiness degree,grain length,milled rice rate,amylase,alkali spreading value,head rice yield,brown rice percentage and gel consistency;and,（d）EF14 A and Fuhui 77 could potentially be used as parents for breeding hybrid rice.

关 键 词：杂交水稻 品质性状 配合力 遗传力 

分 类 号：S511[农业科学—作物学]