辣椒苗期疫病抗性种质资源的筛选与评价  

Screening and Evaluation of Germplasm Resources Resistant to Phytophthora blight of Pepper at Seedling Stage

作　　者：秦于玲[1] 申龙斌[1] 杜公福[1] 曹振木[1] 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所,海南 海口

出　　处：《农业科学》2020年第1期43-49,共7页Hans Journal of Agricultural Sciences

基　　金：海南省重点研发计划(ZDYF2018238-1)、中国热带农业科学院基本科研业务费(1630032018016, 16300 32019019).

摘　　要：辣椒疫病是引起品质下降、产量降低和效益减少的因素之一,限制辣椒产业的健康发展。为满足育种者选育抗病品种所需亲本材料的需求,本试验对32份不同来源的辣椒种质进行了苗期疫病抗性鉴定和评价,这些材料中有甜椒6份,朝天椒2份,灯笼椒2份,牛角椒7份,羊角椒6份,线椒2份,樱桃椒2份,泡椒3份,螺丝椒2份。结果表明,供试种质中没有辣椒疫病免疫的品种。苗期人工接种法鉴定出高抗辣椒疫病材料13份,占参试材料40.6%;抗病材料7份,中抗材料2份,感病材料5份,高感材料5份。Phytophthora blight is one of the factors that cause quality decline, yield decrease and benefit decrease, which limits the healthy development of pepper industry. To meet the needs of breeders in breeding resistant varieties, 32 germplasms of pepper from different sources were identified and evaluated for disease resistance at seedling stage in this experiment, which contained 6 sweet peppers, 2 hot peppers, 2 bell peppers, 7 cattle horn peppers, 6 alstonia peppers, 2 line peppers, 2 cherry peppers, 3 pickled peppers and 2 screw peppers. The results showed that there were no pepper varieties immune to Phytophthora blight. Thirteen materials with high resistance to capsicum blight were identified by artificial inoculation at seedling stage, accounting for 40.6% of the materials in the experiment, 7 materials with resistance to capsicum blight, 2 materials with medium resistance to capsicum blight, 5 materials with sensitivity to capsicum blight and 5 materials with high sensitivity to capsicum blight.

关 键 词：辣椒种质 疫病 抗性评价 

分 类 号：S64[农业科学—蔬菜学]