紫苏主要农艺性状与产量构成相关性分析  

Correlation of agronomic traits and yield components in Perilla frutescens

作　　者：徐静[1] 王仙萍[1] 田世刚[1] 杨森[1] 商志伟[1] 温贺[1] 郭平[1] 沈奇[1] 赵继献[1] 

机构地区：[1]贵州省农业科学院油菜研究所,贵州贵阳550008

出　　处：《中国油料作物学报》2017年第5期664-673,共10页Chinese Journal of Oil Crop Sciences

基　　金：国家自然科学基金(31360067);贵州省科技厅农业攻关项目(黔科合NY字[2016]3052号);贵州省科学技术基金项目(黔科合J字[2014]2020号);贵州省农业科学院专项(黔农科院院专项(2016)020号)

摘　　要：为建立紫苏理想株型,系统分析了紫苏主要农艺性状与产量构成因素间的相关性。在贵阳和开阳2个试验点种植209份来源于主要生态区域的紫苏材料,采集主要农艺学性状指标,分析各性状值与单株产量间的相关性,确定单株穗数(X4)、主穗果数(X6)、千粒重(X7)为紫苏产量构成的3个主要因素,两个试验点的回归方程为:Y贵=-5.972 8+0.025 0X4+0.194 0X6+2.647 8X7,Y开=-11.453 1+0.019 4X4+0.212 9X6+4.557X7,回归方程均达极显著水平。依据各性状与单株产量间的回归关系求极值,得出其理想株型:贵阳点理想单株产量约为29.25~30.21g,理论产量约为2 475kg/hm2;开阳点理想单株产量约为24.81~25.17g,理论产量约为2 040kg/hm^2。To obtain the ideotype of Perilla frutescens, correlation between main agronomic traits and yield c o m-ponents was studied. 209 samples derived from the main ecological areas were planted in 2 sites （ Guiyang and Kaiyang in Guizhou Province） . Three main factors （ spikes per plant, grains per spike and 1 000 - seed weight）, were identified. Ideotype was constructed by yield per plant and the extreme values. Results showed that, in Guiy-ang and Kaiyang sites, ideotype plant yield was about 29. 25 -30. 21 g and 24. 81 -25. 17 g respectively. Theoret-ical yield was about 165 kg and 136 kg respectively. Correlation of main agronomic traits and yield components would help the breeding of high yield P . frutescens.

关 键 词：紫苏 农艺学性状 产量构成因素 理想株型 

分 类 号：S565.8[农业科学—作物学]