浙江农业学报2026，Vol.38Issue(5)：886-897,12.DOI:10.3969/j.issn.1004-1524.20250509
茭白种质资源收集及不同茭白品种对茭白胡麻斑病的抗性评价
Collection of Zizania latifolia germplasm resources and evaluation of resistance to leaf spot disease in different Zizania latifolia germplasm
摘要
Abstract
To investigate key traits such as maturity,type,and resistance to leaf spot disease in different cultivars of water bamboo(Zizania latifolia),this study collected 116 water bamboo varieties from 13 provinces(municipali-ties)in China.Systematic investigations were conducted on the maturity and fleshy stem morphology of each variety,alongside the isolation and morphological identification of their endophytic Ustilago esculenta.Furthermore,resist-ance to water bamboo leaf spot(Bipolaris oryzae)was evaluated through artificial inoculation with physiological race LY-H1 and subsequent disease index rating.The results indicated that among the collected germplasm,there were 53 double-harvest varieties and 63 single-harvest varieties.Mid-maturing types were predominant in both groups.Doub-le-harvest varieties primarily exhibited conical stems,whereas single-harvest varieties were mostly elongated.Mean-while,103 endophytic U.esculenta strains were successfully isolated,with colony morphologies primarily classified into dense mycelium-type and spore-type.The dense mycelium-type exhibited three morphologies:curly growth type,adherent growth type,and elevated growth type,while the spore-type exhibited two morphologies:granular type and wrinkled type.Additionally,single-harvest varieties generally demonstrated stronger resistance to B.oryzae than double-harvest varieties.This study provides valuable germplasm materials and a scientific foundation for the collec-tion,conservation,evaluation,and disease-resistant breeding of water bamboo resources.关键词
茭白/菰黑粉菌/种质资源/熟性/抗病性Key words
Zizania latifolia/Ustilago esculenta/germplasm resource/maturity/disease resistance分类
农业科技引用本文复制引用
胡江龙,姜万龙,彭辉,吴骏成,张真,汤近天,张雅芬,叶子弘..茭白种质资源收集及不同茭白品种对茭白胡麻斑病的抗性评价[J].浙江农业学报,2026,38(5):886-897,12.基金项目
国家自然科学基金联合基金(U20A2043) （U20A2043）
