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Auteur E. Osir |
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S. Githiri ; K. Ampongnyarko ; E. Osir ; P. Kimani | 1996Inheritance of aphid resistance and allelic relationships among sources of resistance was studied in the parents, F-1, F-2, F-3, and backcross populations of cowpea crosses. Each 4-day old seedling was infested with five fourth-instar aphids. Se[...]