耐高温胁迫西葫芦种质资源评价和筛选  

Evaluation and Screening of Cucurbita pepo L.Germplasm Resources with High Temperature Resistant

作　　者：刘屿洲 顾小煜 杨凤娟[1,2,3] 李兴盛 袁晓伟 季托 李静 LIU Yu-zhou;GU Xiao-yu;YANG Feng-juan;LI Xing-sheng;YUAN Xiao-wei;JI Tuo;LI Jing(College of Horticulture Science and Engineering/Shandong Agricultural University,Tai'an 271018,China;Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(Huanghuai Region),Ministry of Agriculture and Rural Affairs,Tai'an 271018,China;Shandong Province Collaborative Innovation Center of Fruit and Vegetable,Tai'an 271018,China;Huasheng Agricultural Group Co.,Ltd.,Weifang 262500,China)

机构地区：[1]山东农业大学园艺科学与工程学院,山东泰安271018 [2]农业农村部黄淮地区园艺作物生物学与种质创制重点实验室,山东泰安271018 [3]山东果蔬优质高效生产协同创新中心,山东泰安271018 [4]华盛农业集团股份有限公司,山东潍坊262500

出　　处：《山东农业大学学报（自然科学版）》2024年第5期804-813,共10页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：山东省农业良种工程项目(2021LZGC015);山东省农业良种工程项目(2021LZGC015)。

摘　　要：为筛选耐高温的西葫芦(Cucurbita pepo L.)种质材料,本试验以30份西葫芦种质资源为材料,分别设置了常温、高温两组不同温度处理,测定了不同处理后7 d的生长指标(株高、茎粗、全株叶面积、地上部鲜重、地上部干重、地下部鲜重、地下部干重)、相对电导率、丙二醛含量及热害指数。结果表明:高温下30份西葫芦种质资源的各项指标均呈显著性差异。根据聚类分析及隶属函数分析,可将30份西葫芦种质资源分为高温耐受性强、中、敏感三大类,筛选强高温耐受性品种为11号、27号、3号、8号、4号。相对电导率与丙二醛含量与热害指数有较高的相关性,可以作为评价西葫芦种质资源耐高温能力的快捷评价指标。In order to screen high temperature resistant zucchini(Cucurbita pepo L.)germplasm materials,30 zucchini germplasm resources were used as materials.The growth indexes(plant height,stem diameter,total leaves area,shoot fresh weight,shoot dry weight,root fresh weight,root dry weight),relative conductivity,MDA content and heat injury index were measured after 7 days under different treatments.The results showed that the indexes among the 30 zucchini germplasm resources were significantly different under high temperature.Based on cluster analysis and subordinate function analysis,the 30 zucchini germplasm resources can be divided into three categories:tolerance,moderate and sensitive,the varieties with high temperature tolerance were screened as No.11,27,3,8,and 4.There is a high correlation among relative conductivity,MDA content and heat injury index,which can be used as a quick evaluation index to evaluate the high temperature tolerance of zucchini germplasm resources.

关 键 词：高温 西葫芦 种质资源 筛选 

分 类 号：S642.6[农业科学—蔬菜学]