彭水县红花油茶品种资源及其主成分分析

摘要

The investigation preliminarily made the resources status of Camellia chekiangoleosa in Peng-shui of Chongqing clear .This research analyzed the fruit economic character and main fatty acid of Ca-mellia pitardii Coh.St.var.and Camellia pitardii Coh.St.The results showed that the fruit size and weight of C.pitardii Coh.St.var.surpassed that of C.pitardii Coh.St., but the average fruits yield per unit area of C.pitardii Coh.St.var.was 0.09～0.80 kg/m2 , which was less than that of C.pitar-dii Coh.St.(1.8～2.9 kg/m2 ).C.pitardii Coh.St.was 26.7％ higher than C.pitardii Coh.St. var.on fresh seed yield and 10％lower than C.pitardii Coh.St.var.on oil content of seed kernel .The bioactive substances squalene of C.pitardii Coh.St.var.and C.pitardii Coh.St.were 129.8mg/kg and 170.0mg/kg, which were respectively 61.1％and 110.9％higher than other Camellia.β-sitostero of C.pitardii Coh.St.var.and C.pitardii Coh.St.were 150.0mg/kg and 314.6mg/kg, which were respectively 18.9％and 149.3％higher than other Camellia .Compared with Vitamin E of other Camel-lia, C.pitardii Coh.St.var.was nearly the same but C.pitardii Coh.St.was less.%通过调查,初步掌握了重庆市彭水县红花油茶品种资源状况.对多变西南红山茶和西南红山茶果实经济性状和主要脂肪酸含量进行分析测定.结果表明,多变西南红山茶果径和单果重均较西南红山茶大,其单位面积冠幅平均产果量在0.09～0.80 kg/m2,较西南红山茶单位面积冠幅平均产果量(1.8～2.9 kg/m2)低.西南红山茶平均鲜出籽率较多变西南红山茶高26.7％,平均种仁含油率较多变西南红山茶约低10％.多变西南红山茶生物活性物质角鲨烯平均为129.8 mg/kg,西南红山茶平均为170.0 mg/kg,分别较普通油茶高61.1％和110.9％;多变西南红山茶β-谷甾醇平均值为150.0 mg/kg,西南红山茶平均值为314.6 mg/kg,分别较普通油茶高18.9％和149.3％;多变西南红山茶和普通油茶的维生素E含量差异不大,西南红山茶维生素E含量较普通油茶偏低.