摘要
辽粳系列品种是指辽宁省稻作研究所选育的系列常规水稻品种。辽粳系列水稻品种具有产量高、稳产性好、米质优良和抗病性强等优点。本文选用已审定并在生产上应用面积较大、有代表性的18个辽粳系列水稻新品种,对其产量性状进行分析。结果表明,在产量构成因素中,每穗成粒数的可塑性最大,千粒重的可塑性最小;偏大穗型品种其穗粒数与产量的相关系数大,密切程度高,高生物产量是获得高产的物质基础;多穗型品种其穗数与产量的密切程度相对更高一些;在产量构成因素中,其他因素通过总粒数对产量发挥的作用最大。
The serial rice varieties of Liaojing, bred by Institute of Rice Research, Liaoning Academy of Agricultural Sciences, have excellent traits of high yield, good quality, disease resistant, etc. 17 varieties of Liaojing rice varieties which were widely applied were selected and their yield factors analyzed in the paper.The results showed that among all yield factors, the number of ripen grains per panicle has the greatest plasticity, while the weight of 1 000 grains has the least. To the big panicle varieties of Liaojing rice, grain number per panicle has great correlative coefficient with yield, and higher biomass production substantial foundation of higher yield. To the multi-panicle varieties, however, both panicle number and grain number per panicle have great correlative coefficient with yield. Among all the factors related to yield, the number of spikelet per panicle plays the most important role, while other factors take effect by changes of it.
出处
《吉林农业科学》
CSCD
2006年第5期11-13,18,共4页
Journal of Jilin Agricultural Sciences
关键词
辽粳
水稻品种
产量分析
Liaojing
Rice varieties
Analysis of yield formation
