Development of high yielding synthetic maize (Zea mays L.) varieties suitable for intercropping with common bean (Phaseolus vulgaris L.)

Muraya, M.M. and Omolo, E.O. and Ndirangu, C.M. (2006) Development of high yielding synthetic maize (Zea mays L.) varieties suitable for intercropping with common bean (Phaseolus vulgaris L.). Asian Journal of Plant Sciences, 5 (1). pp. 163-169.

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Abstract

The objective of the study was to select and develop high yielding synthetic maize cultivars suitable for intercropping with common bean. S1 selection method was used to extract lines from Kakamega Striga Tolerant Population (KSTP) maize and Embu population, and the best 10 lines were recombined to form synthetic maize cultivars which were evaluated against the KSTP and recommended commercial hybrid (H512) under monoculture and intercropping. The experiments were conducted in Njoro, Kenya. The study led to development of two synthetic maize cultivars (Egerton Synthetic I and Egerton Synthetic II). Egerton synthetic I had the highest light transmission to the ground and gave the highest bean yield (23% reduction over bean monocrop) under intercrop system. It was the best for intercropping with beans. Egerton synthetic II gave the highest maize grain yield (41% yield increase over KSTP). Intercropping Egerton synthetic II with beans offered the highest benefits. There was no significant difference between Egerton synthetic II and H512 in terms of grain yield. The study showed that it is possible to breed genotypes for intercropping systems. Intercropping beans with maize selected and bred for intercropping supported transgressive yielding and thus can contributed to food security

Item Type: Article
Author Affiliation: Department of Agronomy, Egerton University, P.O. Box 536, Njoro, Kenya
Subjects: Plant Production > Croping Systems
Crop Improvement > Genetics
Crop Improvement > Plant Breeding
Divisions: Maize
Common Bean
Depositing User: Mr T L Gautham
Date Deposited: 11 Jan 2011 17:59
Last Modified: 11 Jan 2011 18:27
Official URL: http://scialert.net/qredirect.php?doi=ajps.2006.16...
URI: http://eprints.icrisat.ac.in/id/eprint/1332

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