摘要
为了探索出一种甜瓜耐低温的高效筛选方法,快速筛选出耐低温甜瓜种质资源并利用,先用7份具有耐低温性差异的甜瓜资源,确定了17℃为甜瓜萌芽期低温筛选的最佳温度;再用17℃对268份甜瓜资源进行鉴定筛选,获得极耐和极不耐低温的资源;最后挑选出极耐低温和不耐低温的甜瓜资源各5份测定光合速率。结果表明,在萌芽期耐低温性较好的甜瓜资源在低温处理下的光合速率也更高。试验选出极耐低温的资源11份,可被直接或间接用于耐低温育种。
To establish an efficient screening method for cold tolerance in melon and rapidly identify/utilize cold-tolerant germplasm resources,this study first used 7 melon accessions with different cold temperature tolerance,and determined 17℃as the optimal temperature for low temperature screening during the germination stage.Subsequently,268 melon accessions were evaluated at 17℃to identify extreme cold-tolerant and cold-sensitive materials.Further analysis selected five highly tolerant and five highly sensitive materials to determine their photosynthetic rate.The results showed that the accessions with strong cold tolerance during germination maintained higher photosynthetic rate under low-temperature stress.This study ultimately identified 11 highly cold-tolerant accessions suitable for direct or indirect use in low-temperature tolerance breeding.
作者
韦小敏
徐文龙
尚建立
周丹
WEI Xiaomin;XUWenlong;SHANG Jianli;ZHOU Dan(Institute of Animal Product Quality and Safety Technology,Henan University of Animal Husbandry and Economy,Zhengzhou 450046,Henan,China;Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,Henan,China)
出处
《中国瓜菜》
北大核心
2025年第8期95-100,共6页
China Cucurbits And Vegetables
基金
国家园艺种质资源库西瓜、甜瓜分库(NHGRC2024-NH00-3)。
关键词
甜瓜
种质资源
萌芽期
耐低温
Melon
Germplasm resources
Germination stage
Cold tolerance
