宁夏彭阳县山杏群体数量性状变异及其与经济性状的相关性

Studies on Variabilities of Quantitative Characters and Correlation with Economic Character of Armeniaca vulgaris Seedlings in Pengyang County of Ningxia

对宁夏彭阳县山杏实生群体数量性状的分布特征、变异情况及其与经济性状的相关性进行了分析。结果表明:山杏嫩枝、花、叶、果、核、仁等方面的30个数量性状均呈正态分布,嫩枝长变异系数最大,达39.8%,雌蕊发育程度次之,为38.4%,果重、节间长度、出核率、仁重、核重、果皮厚等数量性状的变异系数均大于20%。与山杏经济性状显著相关的数量性状有嫩枝长、嫩枝粗、叶长/叶柄长、叶长、叶柄长、叶柄粗、雌蕊发育程度、花径、雄蕊数、果长、果宽、果皮厚、果重和果形指数等。结合性状变异分析和性状相关分析,确定嫩枝长、嫩枝粗、叶柄长、叶柄粗、雌蕊发育程度、果皮厚、果重等作为当地高产山杏间接选种的主要数量性状指标。

The distribution characteristics,variabilities and correlation with economic character of Armeniaca vulgaris seedlings were analyzed in Pengyang County of Ningxia Hui Autonomous Region.The results indicated that 30 major quantitative characters of Armeniaca vulgaris,young shoots,flowers,leaves,fruit,kerne,almond and so on,were normal distribution.Coefficient of variation of length of young shoots was the highest which attained 39.8%,pistil development level came second which attained 38.4%,other coefficients of variation that were higher than 20%were fruit weigh, length of internode,rate of kernel,almond weigh,kernel weigh,width of pericarp.The correlated quantitative characters with economic characters were length and width of young shoots,length of leaves/length of petiol,length of leaves,length and width of petiole,pistil development level,flower diameter,the number of stamens,length and width of fruit,thickness of pericarp,weight of fruit,fruit-form index and so on.Combining analysis with variation and rerelation of characters, length and width of young shoots,length and width of petiole,pistil development level,thickness of pericarp,weight of fruit were taken as major indicators of quantitative characters for indirect selection of high-yielding Armeniaca vulgaris.