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논문 기본 정보

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학술저널
저자정보
Joghee Nanjundan (ICAR-Indian Agricultural Research Institute) Channappa Manjunatha (ICAR-Indian Agricultural Research Institute) Jalli Radhamani (ICAR-National Bureau of Plant Genetic Resources) Ajay Kumar Thakur (ICAR-Directorate of Rapeseed-Mustard Research) Rashmi Yadav (ICAR-National Bureau of Plant Genetic Resources) Arun Kumar (ICAR-Directorate of Rapeseed-Mustard Research) Mohan Lal Meena (ICAR-Indian Agricultural Research Institute) Rishi Kumar Tyagi (ICAR-National Bureau of Plant Genetic Resources) Devender Kumar Yadava (ICAR-Indian Agricultural Research Institute) Dhiraj Singh (ICAR-Directorate of Rapeseed-Mustard Research)
저널정보
한국식물병리학회 The Plant Pathology Journal The Plant Pathology Journal 제36권 제2호
발행연도
2020.4
수록면
111 - 120 (10page)

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Powdery mildew of Indian mustard (Brassica juncea), caused by Erysiphe cruciferarum, is emerging as major problem in India. All the Indian mustard cultivars presently grown in India are highly susceptible to powdery mildew and so far no resistance source has been reported. In this study, with an aim to identify resistant source, 1,020 Indian mustard accessions were evaluated against E. cruciferarum PMN isolate, at Wellington, The Nilgiris, Tamil Nadu, India under natural hot spot conditions. The study identified one accession (RDV 29) with complete resistance against E. cruciferarum PMN isolate for the first time, which was consistent in five independent evaluations. Genetic analysis of F₁, F₂ and backcross populations obtained from the cross RSEJ 775 (highly susceptible) × RDV 29 (highly resistant) for two season revealed that the resistance is governed by two genes with semi-dominant and gene dosage effect. Further, a new disease rating system using six scales (0, 1, 2, 3, 4, and 5) has also been proposed in this study to score powdery mildew based on progress of fungal growth in different plant parts of the F₂ population. The outcome of this study viz. newly identified powdery mildew-resistant Indian mustard accession (RDV 29), information on inheritance of resistance and the newly developed disease rating scale will provide the base for development of powdery mildew-resistant cultivars of Indian mustard.

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Materials and Methods
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