Resistance to the larger grain borer (Prostephanus truncatus) and yield performance in selected local maize landraces in Kenya
Paper Details
Resistance to the larger grain borer (Prostephanus truncatus) and yield performance in selected local maize landraces in Kenya
Abstract
The larger grain borer (LGB) has continued to devastate maize grains especially in the dry and hot ecologies of Kenya. Resistance is a low cost environmentally sound avenue of pest management. Most of the improved cultivars are susceptible to the pest, and succumb to drought much faster. Local maize landraces are an important livelihood resource and form an alternative source of potential resistance for the LGB in these areas. The objective of this study was to evaluate selected local maize landraces for LGB resistance and yield performance. Laboratory screening was carried out for 25 germplasm at KARI-Kiboko field laboratory where the insects were also sourced. One hundred (100) grams of maize grains were infested with 50 unsexed LGB adults. Resistance was evaluated 90 days after infestation. Field data were recorded on grain yield, 100seed weight, shelling percentage, plant height and number of ears per plant. Percentage loss in grain weight and dust weight collected after three months of storage were used as measures of LGB resistance. Data were analyzed using SAS package and means separated by Fisher’s protected LSD. CML492 was the most resistant followed by GBK-044593, GBK-032419, GBK-032423, GBK-044611, GBK-34659 and GBK-032357. Over half the landraces gave higher yields than the local check. GBK-043731 was the highest yielding (6 t/ha). Appreciable levels of resistance against LGB were identified in the local landraces. These landraces are recommended for both production, and use in the development of LGB resistant maize in Kenya.
Ackland JD. 1975. East African crops. London: FAO/Longman.
Bergvinson HJ. 2000. Storage pest resistance in maize. Maize Research Highlights 1999-2000. CIMMYT. Mexico DF.
Chapman S, Cooper M, Podlich D, Hammer G. 2003. Evaluating plant-breeding strategies by simulating gene action and dryland environment effects. Agronomy Journal 95, 99-133.
CIMMYT (International Maize and Wheat Improvement Center). 1998. Report; Finding resistance to maize storage pests. CIMMYT. EL Batan, Mexico.
Gethi JG. 2002. Screening for common weevil resistance in single cross maize hybrids in Kenya. Proceedings of the 8th Biennial Scientific Conference. KARI Headquarters. Nairobi. Kenya.
Jaetzold R, Schmidt H, Hornetz B, Shisanya CA. 2006. Farm Managemnt Handbook of Kenya. Natural Conditions and Farm Information, 2nd Edition, Vol. 11/C. Ministry of Agriculture/GTZ, Nairobi, Kenya (Eastern Province).
Kapindu S, Saka V, Julian A, Hillocks R, Musuku W. 1999. The significance of maize cob rots in smallholder farms in central Malawi. African Crop Science Journal 7, 531-537.
Kumar H. 2002. Resistance in maize to the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae). Journal of Stored Products Research 38, 267-280.
M’mboyi F, Mugo S, Mwimali M, Ambani L. 2010. Maize Production and Improvement in Sub-Saharan Africa. African Biotechnology Stakeholders Forum (ABSF), Nairobi, Kenya.
Meikle WG, Adda C, Azoma K, Borgemeister C, Degbey P, Djomamou B, Markham RH. 1998. The effects of maize variety on the density of Prostephanus truncatus (Coleoptera: Bostrichidae) and Sitophilus zeamais (Coleoptera: Curculionidae) in post-harvest stores in Benin Republic. Journal of stored plant products 34, 45-58.
Mugo SN, Songa J, DeGroote H, Hoisington D. 2002. Insect Resistant Maize for Africa (IRMA) Projecct: An overview. CIMMYT, Washington DC.
Mwololo JK, Mugo SN, Tefera T, Okori P, Munyiri SW, Semagn K, Otim M, Beyene Y. 2012. Resistance of tropical maize genotypes to the larger grain borer. Journal of Pest Science 85, 267-275.
Ndiso JB, Mugo S, Kibe JB, Pathak RS, Likhayo P. 2007. Characterization for phenotypic drought tolerance and resistance to storage pests in local coastal maize landraces in Kenya. Proceedings of the Africa Crop Science Conference. El Minia, Egypt. Pp 245-250.
Tefera T, Mugo S, Tende R, Likhayo P. 2010. Methods of Screening Maize for Resistance to Stem Borers and Post-harvest Insect Pests. International Maize and Wheat Improvement Center (CIMMYT), Nairobi, Kenya.
Tefera T, Mugo S, Tende R, Likhayo P. 2011. Methods of Screening Maize for Resistance to Stem Borers and Post-harvest Insect Pests. International Maize and Wheat Improvement Center (CIMMYT), Nairobi, Kenya.
Zsubori Z, Gyenes-Hegyi Z, Illes O, Pok I, Raez F, Szoke C. 2002. Inheritance of Plant and Ear Height in Maize (Zea Mays L.). Journal of Agricultural Science Univer Debrecen 8, 34-38.
S. W. Munyiri, I. M.Tabu, 2013. Resistance to the larger grain borer (Prostephanus truncatus) and yield performance in selected local maize landraces in Kenya. Int. J. Agron. Agric. Res., 3(2), 40-47.
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