中国瓜菜2026，Vol.39Issue(6)：156-163,8.DOI:10.16861/j.cnki.zggc.2025.0840
辣椒苗期低温耐受性评价
Evaluation of low-temperature-tolerant in pepper seedling
摘要
Abstract
To evaluate the tolerance of high-quality pepper germplasm resource to low-temperature stress during the seed-ling stage,six pepper materials including 19Y004,19Y012,and Qicunhong were selected 4℃/12 h low-temperature treatment groups and a 25℃/12 h control group were set up.By assessing the cold damage level,measuring relevant physiological and biochemical indicators,and combining principal component analysis,a comprehensive evaluation of low-temperature tolerance was conducted.The results show that there are significant difference in the cold resistance char-acteristics of the six pepper materials.Among them,the cold damage level of 19Y004 was 0 and exhibited normal mor-phology.Principal component analysis showed that Qicunhong had the highest comprehensive score(78.75)and the stron-gest low-temperature resistance,while 19Y012 had the lowest comprehensive score(-57.00)and the poorest cold resis-tance.In conclusion,this study not only identified the difference in low-temperature tolerance among the six pepper germ-plasm resources,but also selected Qicunhong as an excellent cold-tolerant germplasm resource,which can provide a theo-retical basis for the breeding for cold tolerance in pepper.关键词
辣椒/低温胁迫/种质评价Key words
Pepper/Low-temperature stress/Germplasm evaluation分类
农业科技引用本文复制引用
米兴旺,李波,贾琪,张鹏,康景涛,何萌,闫文涛,魏兵强..辣椒苗期低温耐受性评价[J].中国瓜菜,2026,39(6):156-163,8.基金项目
甘肃省现代寒旱特色农业菜产业技术体系(GSARS-03-10) （GSARS-03-10）
