饲用燕麦种子产量与产量相关性状相关性分析及综合评价

Correlation analysis and comprehensive evaluation of seed yield and yield-related traits in oat(Avena sativa)

为探究影响饲用燕麦种子产量的主要影响因子及其相对贡献率,筛选出适于内蒙古自治区东部地区种植的饲用燕麦品种,研究选取19个饲用燕麦品种的6个产量相关性状与种子产量进行相关性分析,并运用隶属函数分析法对19个饲用燕麦品种种子产量及相关性状进行综合评价。结果表明:种子产量与产量构成因素的相关系数大小顺序为:单株粒重>单株粒数>千粒重>小穗数>穗长>株高,株高和小穗数表现为负相关关系;甜燕1号和三星2个燕麦品种适宜在内蒙古自治区东部地区推广种植。

In order to explore the main factors affecting the seed yield of forage oats and their relative contribution rates as well as screen out forage oat varieties suitable for planting in eastern Inner Mongolia,the correlation analysis between seed yield and 6 yieldrelated traits,and growth characteristics of 19 oat varieties were analyzed and comprehensively evaluated by using membership function method.The results showed that the order of correlation coefficients between seed yield and yield components was as follows:seed yield per plant>grain number per plant>1000-grain weight>spikelet number>spike length>plant height,plant height and spikelet number was negatively correlated.Two oat varieties,Sweety and Samsung,are adaptable for planting in the eastern region of Inner Mongolia.