Seasonal incidence of foliar diseases of Cowpea (Vigna unguiculata L.Walp) and their eco-friendly management through shifting of planting time
DOI:
https://doi.org/10.36782/apjsafe.v9i1.85Keywords:
cowpea, disease survey, seasonal incidence and cultural managementAbstract
A thorough study was conducted on foliar diseases of cowpea under widely cultivated cowpea producing areas of Nadia & Hooghly district of West Bengal. The areas were Mondouri, Jaguli Instructional farm, Muragacha, Rajberia, Chakdaha, Madanpur, Basantapur, Kalyani Incheck farm, Kalyani “C” block farm under Nadia district and Mogra under Hooghly district. The fixed plot survey was conducted during Pre-kharif, Kharif & Rabi season. Seven fungus has been isolated during survey period and these are- Alternaria alternata, Colletotrichum capsici, Corynespora cassicola, Fusarium ciceri, Rhizoctonia solani, Sclerotium rolfsii, Curvularialunata. Among these pathogens, Alternaria alternata, Colletotrichum capsici,Corynesporacassicola found to be most dominating pathogen during Pre-Kharif, Kharif & Rabi season respectively.Shifting of planting time was carried out for avoiding the plant pathogen at a particular growth stage of the crop. Five cultivars (Kashikanchan, Triguna, Manikanchan, KSP-170 &Arkagarima) were selected for the experimental trial for three different seasons against the main dominating pathogens. For Pre-Kharif planting of cowpea, the 1st week of March, for Kharif planting time, 1st week of June were established as most profitable. During Rabi season for planting of three varieties viz.Kashikanchan, Manikanchan& KSP-170, 4th week of November and for Triguna&Arka Garima, 2nd week of November were found most profitable due to least incidence of diseases and maximum yield.
Downloads
References
Agrios GN. 2005 Path Press– Plant Pathology. 5th ed. Academic, San Diego. pp. 922.
Ahlawat, I.P.S. and Shivakumar, B. G. 2005. Kharif pulses. In Textbook of Field Crops Production. Dr. R. Prasad (Ed.) Indian Council of Agricultural Research, New Delhi, India.
Asante, S.K., minimum insecticide application Tamo, M. and Jackal, L.E.N. 2001. Integrated management of cowpea insect pests using elite cultivars, date of planting and. Afr. Crop Sci. J. 9(4): 655-665.
Birhman, R. K. and Singh, B. P. 1995. Path co-efficient analysis and genetic parameters of the components of field resistance of potatoes to late blight. Ann Appl. Biol. 127: 353-362.
Cronquist, A. 1988. The evaluation and classification of flowering plants 2nd edition. The New York botanical garden, New York, ISBN, 0-89327- 332-5. P 555.
Datar, V. V. and Mayee, C. D. 1986. Chemical Management of early blight of Tomato. Journal of Maharashtra Agricultural Universities. 10: 278-280.
Davis, D.W., Oelke, E. A., Oplinger, E. S., Doll, J. D., Hanson, C.V. and Putman, D. H. 2000. Alternative field crops manual. http://www.hort.purdue.edu/new crop/afcm/cowpea.html.
Mandal, M.K., Pati, R., Mukhopadhyay, D. and Majumdar
K. 2009. Maximising Yield of Cowpea through Soil Test-Based Nutrient Application in Terai Alluvial Soils. Better Crops – India. Pp. 28-30
Mc. Kinney, H. H. 1923. Influence of soil temperature and moisture on infection of wheat seedling by Helminthosporium sativum. J. Agric. Res. 26: 195-218.
Quin, F.M. 1997. Importance of Cowpea in advances in cowpea research. B.B. Singh, K.E. Dashiell, D.R. Mohan Raj and L.E.N. Jackai (Eds.), pg. X-Xii. Printed by colcorcraft, Hong Kong, p 375.
Roberts, P. D., Pernezny, K. and Kucharek, T. A. 2001. Anthracnose Caused by Colletotrichum sp. on Pepper. Journal of University of Florida/ Institute of Food and Agricultural Sciences. (online) Available http:// edis.ifas.ufl.edu/PP104 (25 December 2007).
Shaner, G., and Finney, R. 1977. The effect of nitrogen fertilization on the expression of slow mild- mildewing in knox wheat. Phytopathology. 67: 1051-1056.
Tu, J. C. 1993. Effects of planting date, irrigation and rain on infection, disease severity and pod discoloration caused by Alternaria alternata (Fr.) Keissler in bean (Phaseolus vulgaris L.). Can. J. Plant Sci. 73: 315-321.
Tu, J. C., Mcllonnell, M. and Dirks, V. A. 1988. Factors affecting seed quality of navy bean in the field in south western Ontario. Seed Sci. Technol. 16:371-381.
Yaycock, J. Y., Lombin, G., Onazi, O. C. and Owonubi, J. J. 1988. Crop science and production in warm climates. Macmillan Intermediate Agriculture Series, pp: 307.
