不同芍药品种侧枝性状的多样性分析  

Diversity analysis of lateral branch traits among different Paeonia lactiflora Pall.varieties

作　　者：钱景扬 李芹 卢莉莉 孟家松 陶俊 赵大球 QIAN Jingyang;LI Qin;LU Lili;MENG Jiasong;TAO Jun;ZHAO Daqiu(School of Horticulture and Landscape Architecture,Yangzhou University,Yangzhou 225009,Jiangsu)

机构地区：[1]扬州大学园艺园林学院,江苏扬州225009

出　　处：《浙江农业科学》2024年第2期362-370,共9页Journal of Zhejiang Agricultural Sciences

基　　金：扬州市科技计划(现代农业)项目(YZ2022053);江苏现代农业(花卉)产业技术体系(JATS[2023]489)。

摘　　要：芍药是近些年国际市场上新兴的高档切花,有无侧枝是衡量芍药切花品质的重要标准之一。本研究基于单株侧枝总数将188个芍药品种分为多侧枝、中等侧枝、少侧枝和无侧枝4个类型,各侧枝类型品种分别占品种总数的4.79%、28.72%、26.60%和39.89%,其中多侧枝、中等侧枝和少侧枝类型品种的侧枝总数变异范围分别为9.00~20.00、3.00~7.00和1.00~2.00。进一步的侧枝性状多样性分析显示,所有供试品种和3个侧枝类型品种的侧枝性状差异明显,遗传多样性水平较高。有侧枝的主枝条数和单个主枝条上平均侧枝数与侧枝总数关系密切,是影响侧枝分类的两个主要因素。本研究结果可为我国芍药切花生产提供品种资源储备。Paeonia lactiflora Pall.is an emerging high-end cut flower in the international market in recent years,and the presence or absence of lateral branches is one of the important standards for measuring the quality of cut peony flowers.This study divided 188 Paeonia lactiflora Pall.varieties into four types based on the total number of lateral branches per plant:multi lateral branches,medium lateral branches,few lateral branches,and no lateral branches.Each type of lateral branch accounted for 4.79%,28.72%,26.60% and 39.89% of the total number of varieties,respectively.The variation range of the total number of lateral branches for multi lateral branch,medium lateral branch,and few lateral branch types was 9.00-20.00,3.00-7.00 and 1.00-2.00,respectively.Further diversity analysis of lateral branch traits showed that there were significant differences in lateral branch traits among all tested varieties and the three types of lateral branch varieties,indicating a high level of genetic diversity.The number of main branches with lateral branches and the average number of lateral branches on a single main branch are closely related to the total number of lateral branches,and are the two main factors affecting the classification of lateral branches.The results of this study can provide a variety resource reserve for the production of cut peony flowers in China.

关 键 词：芍药 侧枝性状 聚类分析 遗传多样性 

分 类 号：S682.12[农业科学—观赏园艺]