EVALUATION OF RAJMASH (Phaseolus vulgaris L.) GERMPLASM FOR RESISTANCE TO VARIOUS DISEASES

H.G. KENCHARADDI¹*, G.K. SUDARSHAN², R.R. HANCHINAL³, N.K. KRISHNAKUMAR⁴, S. JAYASUDHA^5
1Department of Genetics & Plant Breeding, College of Agriculture, Kyrdemkulai, 793104, Central Agricultural University, Imphal, 795004, Meghalaya, India
²Department Plant Pathology, College of Horticulture, Mysore, 571130, University of Horticultural Sciences, Bagalkot, 587104, Karnataka, India
³Former Consultant, Bioversity International, India office and Chairperson, Protection of Plant Varieties and Farmers Rights Authority, New Delhi, 110012, India
⁴Former Regional Director, South Asia, Bioversity International, and DDG Horticulture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
⁵Department of Genetics & Plant Breeding, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
* Corresponding Author : hgkencharaddi@gmail.com

Received : 03-08-2022     Accepted : 27-08-2022     Published : 30-08-2022
Volume : 14     Issue : 8       Pages : 11555 - 11558
Int J Agr Sci 14.8 (2022):11555-11558

Keywords : Rajma, Landraces, Leaf spot, Rust, Powdery Mildew and Viral disease
Academic Editor : Dr Debojit Sarma, Dr H Chandrashekar, Dr Sanjay Roy
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Bioversity International, College of Horticulture, UHS Campus, GKVK Post, Bengaluru, 560065, Karnataka, India and College of Horticulture, Mysore, 571130, University of Horticultural Sciences, Bagalkot, 587104, Karnataka, India; College of Agriculture, Kyrdemkulai, 793104; Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
Author Contribution : All authors equally contributed

Sixty Rajma landraces and four local checks collected from different regions of the India were evaluated at Bioversity International, Bengaluru against major diseases namely angular leaf spot, rust, powdery mildew, Bean Yellow Mosaic Virus (BYMV) and Common Bean Mosaic Virus (CBMV) diseases under field condition. The results indicated that there is a significant genetic variability in the landraces collected against major diseases and showed varied degree of resistance to different pathogens. BFB-23 showed immune reaction to all the five major diseases. BFB-14 recorded immune reaction to rust, powdery mildew, BYMV and CBMV. BFB-38 exhibited immune reaction to Rust, BYMV and CBMV. Other landraces showed varied range of disease reaction from resistance to highly susceptible. Sources of resistance identified from this study will be utilized in crossing programme and incorporation of the desirable traits for developing resistant varieties in future breeding programs

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