
	Asian Journal of Plant Pathology
	Year: 2011 \| Volume: 5 \| Issue: 3 \| Page No.: 126-133 DOI: 10.3923/ajppaj.2011.126.133

Effects of Variety and Planting Density on the Incidence of Common Viral Diseases of Cowpea (Vigna unguiculata) in a Southern Guinea Savannah Agro-ecology

Taiye Hussein Aliyu and Olusegun Samuel Balogun

Abstract: Virus diseases are a limiting factor in cowpea production in all agro-ecological zones of Nigeria and yield reductions of between 80-100% have been reported. Some cowpea varieties show resistance to viruses, cultural practices such as varying plant population have been found useful in the control of these viral pathogens. Field experiments were conducted in the 2009 and 2010 cropping seasons to evaluate the effect of crop variety and varying planting density on the incidence of common viral diseases of cowpea. Vigna unguiculata (L.) Walp in the Southern guinea savannah agro-ecology of Nigeria. This is to identify tolerant varieties and an optimum planting density that could lead to lower viral incidence and high crop yields. A split-plot fitted into a randomised complete block experimental design with three replications was established with three cowpea cultivars (IT89KD-288, IAR-48 and Ife brown), in the main plots and three planting densities (25x75, 50x75 and 75x75 cm) in the sub-plots. The results of the study indicated that variety and planting density had significant effect on viral disease incidence. The lowest incidence was in variety IT89KD-288 (10.3%) while the highest was in variety IAR-48 (28.6%). The lowest mean incidence was also in plots under planting density of 25x75 cm. However, planting at a mid-level density of 50x75 cm with variety IT89KD-288 outperformed the other combinations for yields and is therefore, recommended.

PDF Fulltext XML References Citation Report Citation

RELATED ARTICLES:

•	Effect of Spatial Arrangement on the Incidence of Virus Diseases Associated with Cowpea Intercropped with Maize

•	Variation and Heritability of Polyphenoloxidasic Activities in Two Hybrid Families of Theobroma cacao L. after Cocoa Pods Inoculation with Phytophtora megakarya Bras. et Grif.

•	Integrated Effects of Bio and Mineral Fertilizers and Humic Substances on Growth, Yield and Nutrient Contents of Fertigated Cowpea (Vigna unguiculata L.) Grown on Sandy Soils

•	Host Range of Rice yellow mottle virus in Sudano-Sahelian Savannahs

•	Genetic Diversity and Qualitative Variation of Rosa damascena in Syria

•	Pathogenicity of Rice Yellow Mottle Virus and the Potential Sources of Resistance against the Disease in Eastern Uganda

How to cite this article:

Taiye Hussein Aliyu and Olusegun Samuel Balogun, 2011. Effects of Variety and Planting Density on the Incidence of Common Viral Diseases of Cowpea (Vigna unguiculata) in a Southern Guinea Savannah Agro-ecology. Asian Journal of Plant Pathology, 5: 126-133.

DOI: 10.3923/ajppaj.2011.126.133

URL: https://scialert.net/abstract/?doi=ajppaj.2011.126.133

COMMENTS

26 September, 2011
Akeem kehinde:
I find this paper very relevant to my work.It is an interesting findind and i would like to commend the Authors and publishers.

REPLY

COMMENT ON THIS PAPER

Navigation


		Online First
		Current Issue
		Previous Issues
		Editorial Board
		Submit a Manuscript
		Guide to Authors
		Subscribe to E-alerts

Indexed In


		ASCI-Database
		Asian Digital Library
		Cambridge Scientific Abstract
		Google Scholar

Science Alert