湖北长阳山区萝卜根肿病抗性鉴定筛选

摘要

Changyang mountainous area is the main occurrence area for clubroot disease in Hubei mountainous region.Taking 100 radish germplasm resources as material,this paper carried out clubroot resistance identification during adult stage,and during seedling stage after artificial inoculation in the fields of Changyang Hujiaping and Huoshaoping.According to the result of comprehensive resistance identification of adult and seedling stages,13 resistant germplasm resources containing 8 white radishes (‘Fuyuan No.1’,‘Hualyu No.8’,‘ Chongqingbingtangyuanbai’,‘ Chunbulao’,‘Yutangchun’,‘ Hanbaiyu’,‘Chunyu’ and ‘ Duanye No.13’),3 red radishes (‘ Hongguan’,‘ Nanjinghong’ and ‘ Dahongpao’) and 2 green radishes (‘ Guantangqing’ and ‘ Deri No.2’) were screened out.In addition,155 radish hybrid combinations were identified in Changyang Huoshaoping clubroot disease nursery and 3 good combinations resistant to clubroot were screened out.%长阳山区是湖北高山地区主要的根肿病病区.以100份萝卜种质资源为材料,分别在长阳胡家坪和火烧坪进行根肿病田间成株期抗病性鉴定和苗期人工接种抗病性鉴定.综合成株期和苗期鉴定结果,筛选出抗根肿病种质资源13份,其中白皮萝卜8份(富源1号、华绿8号萝卜、重庆冰糖圆白、春不老、玉堂春、汉白玉、春玉和短叶13号),红皮萝卜3份(红罐、南京红和大红袍),绿皮萝卜2份(灌糖青和德日2号).利用长阳火烧坪根肿病病圃田间鉴定了155个萝卜杂交组合,筛选出抗根肿病优良组合3个.