Assessment of Asian soybean rust (Phakopsora pachyrhizi) disease severity in selected districts of Western Kenya

Paper Details

Research Paper 01/08/2017
Views (298) Download (19)
current_issue_feature_image
publication_file

Assessment of Asian soybean rust (Phakopsora pachyrhizi) disease severity in selected districts of Western Kenya

H. A. Ogot, S. A. Okoth, G. O. Obiero, J. M. Mahasi
Int. J. Agron. Agri. Res.11( 2), 50-53, August 2017.
Certificate: IJAAR 2017 [Generate Certificate]

Abstract

Soybean rust caused by the fungus Phakopsora pachyrhizi, is a major constraint to soybean production all over the world. The disease has significant impacts on the yield seed size and quality. The pathogen was reported in Kenya for the first time in 1996 and it is increasingly threatening soybean production, however no significant data has been collected on the level of infections in the soybean growing areas in Kenya. The disease severity was assessed in Khwisero, Butere, Mumias and Teso Districts of Western Kenya. The study revealed that the Soybean rust disease is prevalent in all the districts with the percent disease index (PDI) ranging from 40.37 to 74.8. There was no significant difference in the disease severity level in all the four district at p<0.05. The results of this study shows that more disease control measures needs to be applied to ensure that the farmers get maximum yields from the crops.

VIEWS 15

FAO. 2005. Food and Agricultural Organization. hhtp://fao.org/ag.

FAO. 2011. Food and Agricultural Organization. hhtp://fao.org/ag.

Hartman GL, Miles MR, Frederick RD. 2005. Breeding for resistance to soybean rust. Plant Diseases 89, 664–666. https://doi.org/10.1094/PD-89-0664.

Hartman GL, Sinclair JB, Rupe JC. 1999. Compendium of Soybean Diseases. 4th Edition, APS Press, St. Paul, 100.

Kawuki RS, Adipala JL, Tukamuhabwa P. 2003. Responding to the soybean rust epidemic in sub-Saharan Africa: a review. African Crop Science Journal vol. 11. No.4, pp 301-318.

Levy C. 2005. Epidemiology and chemical control of soybean rust in Southern Africa. Plant Disease 89, 669–74. https://doi.org/10.1094/PD-89-0669.

Mahasi JM, Vanlauwe B, Mursoy RC, Mbehero P, Mukalama J. 2009. Increasing productivity of soybean in Western Kenya through evaluation and farmers participatory variety selection, pp. 326-334 12th KARI biannual conference, Nairobi, Kenya.

Mahasi JM, Vanlauwe B, Mursoy RC, Mbehero P, Mukalama J. 2011. A sustainable approach to increased soybean production in western Kenya. African crop science conference proceedings 10, 111-116.

Miles MR, Frederick RD, Hartman GL. 2003. Soybean rust: is the U.S. crop at risk? APSnet Feature, American Phytopathological Society. Online publication.

Miles MR, Rosenblatt I, Traynor P, Hartman GL. 2005. Severity assessment for soybean rust. Proceedings of the National Soybean Rust Symposium, Nov. 14-16, 2005, Nashville, TN. Plant Management Network. Online publication.

Myaka FA, Kirenga G, Malema B. (Eds). 2005. Proceedings of the First National Soybean Stakeholders Workshop, 10–11 November 2005, Morogoro, Tanzania.

Nassiuma D, Wasike W. 2002. Stability assessment of soybean varieties in Kenya. African Crop Science Journal, Vol. 10. No. 2, pp. 139-144.

Pivonia S, Yang XB. 2004. Assessment of the potential year-round establishment of soybean rust throughout the world. Plant Dis 88, 523-529.