大蒜种质资源聚类分析与评价  

Cluster Analysis and Evaluation of Garlic Germplasm Resources

作　　者：孙敬强[1] 孔素萍[1,2] 徐坤[1] 

机构地区：[1]农业部黄淮地区园艺作物生物学与种质创制重点实验室/山东农业大学园艺科学与工程学院,山东泰安271018 [2]山东省农业科学院蔬菜研究所/山东省设施蔬菜生物学重点实验室,山东济南250100

出　　处：《山东农业科学》2013年第6期26-29,共4页Shandong Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(200903018);山东省农业良种工程项目(2011LZ06-01)

摘　　要：采用系统聚类方法,根据大蒜生长势、生育期及鳞茎、蒜薹产量对78份大蒜种质资源进行了分类,并对不同类群的特性进行了分析。结果表明,供试大蒜可分为有薹大蒜(Ⅰ)和无薹大蒜(Ⅱ)2个类群,有薹大蒜又分为Ⅰa、Ⅰb、Ⅰc 3个亚类,Ⅰa平均单薹重17.9 g,较Ⅰb、Ⅰc分别高11.2%和15.5%,但Ⅰa单头重比Ⅰb低32.2%,生育期则较Ⅰc长9.4 d,据此将Ⅰa、Ⅰb、Ⅰc分别命名为薹头兼用品种、头薹兼用品种和早薹品种,可根据栽培目的,合理选择大蒜品种。无薹大蒜类群(Ⅱ)植株生长势较弱,生育期较长,鳞茎较小,栽培意义不大。The systematic cluster method was adopted for classifying 78 garlic germplasm resources accord- ing to their growth potential, fertility period, yield of bulbs and bolts per year, meanwhile the characteristics of the different groups were also analyzed. The results indicated that all the tested garlic cultivars could be divided into 2 groups, bolting garlic （I） and unbolting garlic （Ⅱ）. The bolting garlic （I） could be divided into 3 sub- classes, Ia,Ib and Ic. The average weight of single garlic bolt of Ia was 17. 9 g,which increased by 11.2% and 15.5% compared to that of Ib and Ic, respectively. However the single garlic bulb weight of Ia was 32. 2% low- er than that of Ib, while its fertility period was 9. 4 days longer than that of Ic. Consequently, Ia, Ib and Ic were named as bolts- bulb- dual- purpose varieties, bulb -bolts -dual- purpose varieties and early bolting varie- ties respectively. Therefore suitable garlic varieties could be selected for different cultivation objective. The un- bolting garlic （Ⅱ） had little value for cultivation because of its poor growth vigor, longer fertility period and smaller bulb.

关 键 词：大蒜 种质资源 农艺性状 聚类分析 品种特性 

分 类 号：S633.402.4[农业科学—蔬菜学]