摘要
本研究调查了分别种植在北京市、甘肃平凉市、新疆可克达拉市的117份辣椒材料的21个农艺性状,通过多元统计分析,解析辣椒种质资源的表型多样性和特性。结果表明:117份辣椒材料性状的变异系数范围广,具有丰富的表型多样性;相关性分析发现,3个市辣椒单株产量均与单果质量、果肉厚、果实横径呈显著或极显著相关;主成分分析显示,北京市、平凉市前3个主成分的累积方差贡献率为79.680%、76.410%,可克达拉市前4个主成分的累积方差贡献率为73.900%,可以解释性状原始数据的绝大部分信息。表型性状的聚类分析将117份辣椒材料划分为3组。对辣椒疫病和辣椒轻斑驳病毒病(PMMoV)抗性进行了鉴定,筛选到抗或中抗疫病材料3份(Hybelle、羚角HP-267和天椒1号),抗PMMoV材料1份(Furila)。试验结果可为选育优质、抗病的辣椒材料提供基础的理论指导,并为合理利用辣椒种质和种质创新提供重要参考。
This study investigated 21 horticultural traits of 117 pepper materials grown in Beijing,Pingliang,and Kekedala.Through multivariate statistical analysis,the phenotypic diversity and characteristics of pepper germplasm resources were analyzed.The coefficient of variation for the traits of the 117 pepper materials was wide,indicating rich phenotypic diversity.Correlation analysis revealed that the yield per plant in all three regions was significantly or extremely significantly correlated with single fruit weight,fruit flesh thickness,and fruit diameter.Principal component analysis(PCA)showed that the cumulative variance contribution rates of the first three principal components in Beijing and Pingliang were 79.680%and 76.410%,respectively,while the cumulative variance contribution rate of the first four principal components in Kekedala was 73.900%,collectively explaining most of the original trait data.Cluster analysis of phenotypic traits divided the 117 pepper materials into three groups.Resistance identification was conducted against pepper Phytophthora blight and Pepper mild mottle virus(PMMoV).Three materials(‘Hybelle’,‘Lingjiao HP-267’,and‘Tianjiao No.1’)with resistance or moderate resistance to Phytophthora blight were screened out,along with one PMMoV-resistant material(‘Furila’).Based on the phenotypic data of the 117 pepper materials from the three regions,this study conducted a comprehensive evaluation,analyzing the phenotypic traits and diversity of different germplasms.This provides fundamental theoretical guidance for the breeding of high-quality and disease-resistant pepper materials and serves as an important reference for the rational utilization and innovation of pepper germplasm.
作者
何娜
杨创创
张正海
于海龙
吴华茂
王海平
白锐琴
宋义前
王丽乔
康香辉
黄俊轩
曹亚从
王立浩
HE Na;YANG Chuangchuang;ZHANG Zhenghai;YU Hailong;WU Huamao;WANG Haiping;BAI Ruiqin;SONG Yiqian;WANG Liqiao;KANG Xianghui;HUANG Junxuan;CAO Yacong;WANG Lihao(Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,State Key Laboratory of Vegetable Biobreeding,Beijing 100081,China;Tianjin Agricultural University,Tianjin 300384,China;Pingliang Academy of Agricultural Sciences,Pingliang 744000,Gansu,China;Agricultural Science Research Institute of the 4th Division of Xinjiang Production and Construction Corps,Kekedala 831304,Xinjiang,China;Shijiazhuang Academy of Agricultural and Forestry Sciences,Shijiazhuang 050000,Hebei,China)
出处
《中国蔬菜》
北大核心
2025年第12期43-55,共13页
China Vegetables
基金
国家重点研发计划项目(2022YFD1200502,2023YFD1200101)
国家自然科学基金项目(3237181240)
贵州省科技计划项目(黔科合支撑[2022]重点016号)
中国农业科学院科技创新工程项目(CAAS-ASTIP-IVFCAAS)
国家现代农业产业技术体系项目(CARS-23-A15)
河北省现代农业产业技术体系建设专项(HBCT2024140412)
石家庄市院合作专项农业科技项目(24007)。
关键词
辣椒
农艺性状
抗病性
评价鉴定
pepper
horticultural traits
disease resistance
identification and evaluation
