中国农业大学学报2018，Vol.23Issue(3)：29-37,9.DOI:10.11841/j.issn.1007-4333.2018.03.04
甘蔗与河八王杂交BC1对黑穗病的抗性鉴定与初步评价
Identification and preliminary evaluation of smut resistance in BC1 hybrids derived from Saccharum L.× Narenga porphyrocoma (Hance) Bor
摘要
Abstract
Aiming to prompt smut resistance levels in Saccharum L.× Narenga porphyrocoma (Hance) Borhybrid BC1,using a mixed spores of Sporisorium scitamineum collected in main sugarcane-producing areas in Guangxi Province as inoculum,and a method combining dipping inoculation with natural infection,smut resistance identification was carried out on 38 BC1 hybrid and control.Four disease parameters including the latent infection period,the sustained disease duration,the inoculation incidence,and the natural incidence,were compared with the smut resistant performance of control.The smut resistance of testing varieties was comprehensively evaluated.Further test was conducted by means of systemic cluster analysis.The results showed that:The correlations between four parameters were significant different at 0.01 levels.In SNBC1 hybrid combination,there were 7 varieties failed to infected smut,accounting for 18.42％;A total of 15 varieties were highly resistant to smut (HR),accounting for 39.47％;Three varieties were resistant to smut (R),accounting for 7.89 ％;Three varieties were of the middle sensitivity to smut(MS),accounting for 7.89％;Two varieties were sensitive to smut (S) accounting for 5.26％.The clustering analysis matched the resistance performance of tested SNBC1 hybrid in field.关键词
河八王/黑穗病/抗性鉴定/聚类分析Key words
Narenga porphyrocoma (Hance) Bor/smut/resistance identification/cluster analysis分类
农业科技引用本文复制引用
段维兴,张保青,周珊,黄玉新,王泽平,高轶静,杨翠芳,林善海,张革民..甘蔗与河八王杂交BC1对黑穗病的抗性鉴定与初步评价[J].中国农业大学学报,2018,23(3):29-37,9.基金项目
广西科技计划重点项目(AB16380157,AB16380126) （AB16380157,AB16380126）
广西农科院基本业务专项(2017YM02) （2017YM02）
