Screening of yard long bean (Vigna unguiculata subsp. sesquipedalis (L.) Verdcourt) genotypes for resistance to Colletotrichum gloeosporoides

IF 0.2 Q4 HORTICULTURE
Merin ELZA GEORGE, S. S, Joy M
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引用次数: 1

Abstract

Anthracnose is one of the most destructive fungal diseases caused by Colletotrichum gloeosporoides in yard long bean, leading to complete crop loss at all stages and its parts like hypocotyls, stem, peduncle, flowers, leaves and pods were seriously affected. Few bush type cowpea cultivars have been earlier identified as reliable sources of resistance while trailing types are susceptible, but high yielding. Breeding resistant varieties is suggested as the only practical strategy, especially under hot and humid condition. Fifty-yard-long bean genotypes belonging to bush, semi erect and pole types were screened against anthracnose disease through artificial inoculation under pot culture. The present study identified the resistant varieties of vegetable cowpea through artificial inoculation followed by detached leaf assay. Among the 50 varieties of yard long bean observed, Kanakamony, dual purpose yard long bean was found highly resistant with disease severity of 3.67% followed by Arimbra local.  
豇豆(Vigna unguiculata subsp.)的筛选sesquipedalis (l)绿孢炭疽病菌抗性基因型研究
炭疽病是由大豆炭疽病菌(Colletotrichum gloeosporoides)引起的最具破坏性的真菌病害之一,可导致作物各阶段完全损失,下胚轴、茎、花梗、花、叶和豆荚等部位受到严重影响。很少有灌木型豇豆品种被早期鉴定为可靠的抗病性来源,而尾型豇豆品种易感,但产量高。育种抗病品种是唯一可行的策略,特别是在湿热条件下。通过盆栽人工接种,筛选了灌木型、半直立型和杆状型50码长豆的炭疽病抗性基因型。本研究通过人工接种和离体叶片试验鉴定了蔬菜豇豆的抗性品种。在观察到的50个菜豆品种中,双用途菜豆的抗病程度最高,为3.67%,其次是Arimbra。
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来源期刊
Journal of Horticultural Sciences
Journal of Horticultural Sciences Agricultural and Biological Sciences-Plant Science
CiteScore
0.30
自引率
0.00%
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0
审稿时长
6 weeks
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