FIELD EVALUATION OF HORSEGRAM GERMPLASM/ GENOTYPES AGAINST HORSEGRAM YELLOW MOSAIC VIRUS (HgYMV) DISEASE AND BIOLOGICAL TRANSMISSION OF HORSEGRAM YELLOW MOSAIC VIRUS TO DIFFERENT LEGUMINOUS HOSTS THROUGH WHITE FLIES

G.U. PREMA¹*, K.T. RANGASWAMY^2
1Department of Plant Pathology, College of Agriculture, Vijaypur, 586 101, University of Agricultural Sciences, Dharwad, 580 005, Karnataka, India
²Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, GKVK, Bangalore, 560 065, Karnataka, India
* Corresponding Author : prems.gu@gmail.com

Received : 13-12-2017     Accepted : 18-12-2017     Published : 24-12-2017
Volume : 9     Issue : 54       Pages : 4934 - 4939
Int J Agr Sci 9.54 (2017):4934-4939

Keywords : Field evaluation, Resistance, Horsegram yellow mosaic virus (HgYMV), Biological transmission, White fly
Academic Editor : Dr Kirpa Ram, D.M. Pathak, Shrvan Kumar, G.T. Gopala, Dr K.R. Ashoka
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankfully acknowledges Department of Science and Technology (DST), New Delhi for providing financial assistance for research through Inspire Fellowship
Author Contribution : All author equally contributed

Evaluation of horsegram germplasm/ genotypes against Horsegram yellow mosaic virus (HgYMV) disease under field conditions showed that out of 110 horsegram germplasm lines screened during 2012, none were free from the disease. Five genotypes viz., AK-38, HG-GP, DPI-2278, Paiyur-1 and Paiyur-2 recorded highly resistant reaction. Only three genotypes were resistant (PHG-9, AK-42, BGM-1) and two genotypes i. e., AK-21, AK-26 showed moderately resistant reaction and the remaining were moderately susceptible, susceptible and highly susceptible. The biological transmission studies revealed that 100 per cent infection obtained in horsegram followed by pole bean, french bean, ring bean, lima bean and soybean with 90, 70, 60, 50 and 40 per cent infection respectively. The virus could not be transmitted to other plant species viz., greengram, blackgram, cowpea, pigeon pea, yard long bean, field bean, moth bean, rice bean and cluster bean.

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