摘要
为探讨水稻高产育种因素,以牡丹江31、牡丹江30等10个粳稻品种为试材,在大田条件下分析了不同类型粳稻品种产量差异,产量构成因素以及干物质生产特性。结果表明:在参试的水稻品种中,高产品种牡丹江30拥有最大的穗长和二次枝梗数,每穗颖花数较高,千粒重也比较大,使得牡丹江30在每穴穗数较少、成粒率一般的情况下仍获得了最高的产量。说明穗长、二次枝梗数、颖花数和千粒重是决定牡丹江30高产的主要因素。
In order to explore the high yield breeding factors of rice,10 Japonicarice varieties such as Mudanjing 31,Mudanjing 30were taken as materials to study the yield difference of different types of Japonicarice varieties,yield component factors and characteristics of dry matter production under field conditions.The results showed that in the tested rice varieties,high yield variety of Mudanjiang 30owned the longest panicle length and the most number of second branches,its more spikelets per panicle,1 000-grain weight obtained higher yield even though owned less panicles per cavity and general seed setting rate.It indicated that panicle length,number of second branches,paniclelets and 1 000-grain weight were mainly factors to decide high yield of Mudanjiang 30.
出处
《黑龙江农业科学》
2012年第5期6-10,共5页
Heilongjiang Agricultural Sciences
关键词
粳稻
产量构成因素
穗部性状
干物质积累
Japonicarice
yield components
panicle traits
dry matter accumulation
