摘要
以辽宁地区籼粳交后代品系为研究对象,测定亚种特征程氏指数及维管束性状,并调查有效穗数、穗粒数、结实率、千粒重等经济性状指标,分析亚种特性与经济性状间相关性,结果表明:按程氏指数划分越偏粳型的株系,越倾向于有较高的结实率;越偏籼型的株系,越倾向于有较长的一次枝梗和二次枝梗,而维管束数目越多,越可能有较高的穗粒数。
The relation of subspecies characteristics and economic traits of lines from indica and japonica hybridization in Liaoning were analyzed through Cheng＇s indexes,trait of vascular bundle,effective panicles,grains per panicle,kernel setting rate,and 1000-grain weight.The results showed that lines of japonica-clinous might trend to get higher seed set rate and lines of indica-clinous might trend to get longer primary and secondary rachis-branches,otherwise,the more vascular bundles might lead to the more grains per panicle.
出处
《北方水稻》
CAS
2010年第6期13-16,共4页
North Rice
关键词
水稻
籼粳交后代品系
亚种特征
经济性状
Rice
Lines from indica and japonica hybridization
Subspecies characteristics
Economic traits
