Contribution on the wheat culture development in South-Kivu, Democratic Republic of Congo: yield performance of two genotypes, from Burundi, in various local agroecological zones | Contribution a la promotion de la culture du ble (Triticum aestivum L.) au sud Kivu, Republique democratique du Congo: evaluation du potentiel de rendement de deux genotypes d'origine burundaise, dans differentes zones agro-ecologiques locales
2002
Munyuli Bin Mushambanyi, T. (Centre de Recherche en Sciences naturelles, Bukavu (Democratic Republic of Congo). Dept. de Biologie)
In four sites (Lemera, Bugobe, Mulungu and Cifunzi), two genotypes (Romany and Kenya Nyangumi) were evaluated in contrasting agroecological conditions for their yield adaptibility, during two cropping seasons, from 1998 to 1999. Multilocational trials were set up, in different sites, following a split-plot experimental design, with repeated measurements during two cropping seasons. Genotypes were the main plots and the manures, the subplots. The subplots were randomized with main plots and replicated four times. Differences between environments, genotypes and cropping seasons were significant for the grain yield. The effects of genotypes by environment (G X E) interaction, for grain yield was significant. The general mean yield obtained when genotypes are combined or not with organic fertilizers is of 1.46 t per ha. The best yields were recorded at Mulungu (1.83 t per ha) and Lemera (1.61 t per ha) sites with Kenya Nyangumi genotype. The high yields were recorded at Bugobe (1.51 t per ha) and Lemera (1.88 t per ha) sites with Romany genotype. The application of organic fertilizers increase the yield of genotypes up to 10-36 percent.
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