2009—2018年河南省审定粳稻品种产量结构特点分析  

Analysis on the characteristics of the yield structure of the approved japonica rice varieties in Henan province in 2009—2018

作　　者：王玲燕[1] 黄金华[1] 王书玉[1] 张素平[1] 马海涛[1] 刘震宇[1] 夏彦丽 窦士树[1] WANG Ling-yan;HUANG Jin-hua;WANG Shu-yu;ZHANG Su-ping;MA Hai-tao;LIU Zhen-yu;XIA Yan-li;DOU Shi-shu(Xinxiang Academy of Agricultural Sciences,Xinxiang 453000,Henan,China)

机构地区：[1]河南省新乡市农业科学院,河南新乡453000

出　　处：《湖北农业科学》2020年第2期26-29,共4页Hubei Agricultural Sciences

摘　　要：利用2009—2018年通过河南省审定的36个粳稻品种,对其8个农艺性状与产量进行相关分析、偏相关分析和通径分析,研究影响粳稻主要农艺性状的内在联系和演变规律。结果表明,粳稻平均产量呈上升趋势,年递增129.11 kg/hm2,生育期呈下降趋势,每年为0.826 d,其他性状变化不明显。8个性状对粳稻的产量都有不同程度的作用,每穗实粒数是影响产量的主要性状,有效穗数、千粒重和株高也是保证产量的重要因素。因此,在合理有效穗数前提下,主攻实粒数、保证千粒重是粳稻增产的关键。Using 36 japonica rice varieties approved in Henan province from 2009 to 2018,correlation analysis,partial correlation analysis and path analysis of their eight traits and yield were conducted to study the internal relationship and evolution of main agronomic traits affecting japonica rice.The results demonstrated that the average yield of japonica rice showed an upward trend,with an annual increase of 129.11 kg/hm2,and the growth period showed a downward trend,which was 0.826 day per year,other characteristics didn’t change significantly.The eight traits have different effects on the yield of japonica rice.The number of grains per panicle is the main trait that affects the yield.The number of effective panicles,1000-grain weight and plant height are also important factors to yield.Therefore,under the premise of a reasonable and effective panicles,the main goal is to increase the number of grains and ensure the 1000-grain weight.

关 键 词：粳稻 主要农艺性状 相关性分析 河南省 

分 类 号：S511[农业科学—作物学]