香花油茶优良砧木品系筛选研究  

Screening of Excellent Rootstock Line Camellia osmantha

作　　者：江泽鹏[1] 王东雪[1] 郝丙青 叶航[1] 

机构地区：[1]广西壮族自治区林业科学研究院广西特色经济林培育与利用重点实验室广西油茶良种与栽培工程技术研究中心,广西南宁530002

出　　处：《安徽农业科学》2016年第29期161-163,共3页Journal of Anhui Agricultural Sciences

基　　金：林业公益性行业科研专项(201404702-05);广西科学研究与技术开发计划项目(桂科攻1123004-2A);"广西特色经济林开花生理研究"特聘专家岗位项目

摘　　要：[目的]初步筛选香花油茶优良砧木品系,为油茶砧木的开发利用提供依据。[方法]用香花油茶作为砧木嫁接普通油茶岑软3号,对不同砧木品系的嫁接亲和性和嫁接苗的生长情况进行调查研究,并应用主成分分析法综合评定砧木品系的优劣。[结果]香花油茶作为砧木嫁接普通油茶,全部砧木品系嫁接苗的保存率为87%以上,其中87.5%的砧木品系嫁接苗保存率超过90%,且各砧木品种嫁接苗的抽梢率均高于90%;应用主成分分析法将保存率、抽梢率等6个性状指标转换为3个主成分,并将各主成分因子的得分值与主成分贡献率相乘,获得每个砧木品系嫁接苗的综合得分值。[结论]香花油茶和普通油茶之间亲和性较强;各砧木品系综合得分排名前3位的分别为P_(14)、P_(2)和P_(24)。[Objective] The aim was to screen out excellent rootstock line of Camellia osmantha and provide basis for development and utiliza-tion of oil-tea rootstock.[ Method] Grafting Cenruan 3 into Camellia oleifera, affinity of different rootstocks and grafted seedlings growth were investigated.And principal component analysis method was used to evaluate the pros and cons of rootstock strains.[ Result ] The results showed that survival rate of all grafted seedlings was above 87%, which survival rate was more than 90% in 87.5% grafted seedling.The shooting ratio of all grafted seedlings was higher than 90%.6 traits were converted into 3 main components by method of principal component analysis, multiplying the contribution rates of principal components and integrated score values for each grafted seedlings were obtained.[ Con-clusion] There existed a strong affinity between Camellia osmantha and Camellia oleifera.P14 , P2 and P24 occupied the first three.

关 键 词：香花油茶 砧木 主成分分析 筛选 

分 类 号：S722[农业科学—林木遗传育种]