不同生态区谷子创新种质主要农艺性状与产量相关性分析

来自不同春夏谷区的60份谷子创新种质在山东夏播,对12个主要农艺性状的表现进行了研究分析。结果表明:不同生态区的谷子创新种质在山东的平均表现不同,选育新品种时应根据各地区农艺性状的特点进行。参试品种的主要农艺性状之间存在着一定的相关性。与谷子单株产量相关的各农艺性状中,株高、主茎节数、主茎直径、主穗长、主穗直径、单株穗重、生物学产量、出苗—抽穗期天数、生育期等与产量性状呈正相关。其中相关分析表明,单株穗重、主穗直径与产量的相关系数分别为0.939、0.787,达到了极显著水平。农艺性状与产量的通径分析表明,单株穗重、主穗直径对产量的直接效应较大,与相关分析的结果一致。

Correlation and Path Analysis between Yield and Main Agronomic Characters of Foxtail Millet Germplasms from Different Ecological Regions

This paper presented an analysis on 12 main agronomic characters of 60 foxtail millet germplasms from different ecological regions.The results indicated that the average performance of these foxtail millet germplasms varied in Shandong Province.Some correlations were present in the main agronomic characters.Plant height,nodes of main stem,diameter of main stem,main panicle length,main panicle diameter,panicle weight per plant,biomass,germination-heading period and growth period were positively correlated with yield per plant,and the correlation coefficients of panicle weight per plant and main panicle diameter with yield were 0.939 and 0.787 respectively,which were significant at 0.01 level.Path analysis showed that panicle weight per plant and main panicle diameter contributed more direct positive effect to yield,which was similar to the results of correlation analysis.