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Titre :  Comparison of the performances of six (6) introduced varieties of rainfed rice (Oryza sp) in two agroecological zones in south-west of Republic of Congo
Auteur(s):  Lydie Marie Yebas Makaya-Makosso, Daniel Dibue Muntamba, Lambert Moundzeo, Roger Vumilia Kizungu, Budeh Wickler Kindiela Nzobadila , Enoch Yamba -Yamba Kaboza
Mots-clés:  Introduced varieties of rain-fed rice, production potential, food security and poverty reduction, agroecological zones, Republic of Congo.
Date de publication   2023-12-30 19:27:54
Resumé :  Description of subject. The National Institute of Agronomic Research (IRA), with the collaboration of AfricaRice, introduced around one hundred varieties of rainfed rice in 2010 in the Republic of Congo. This action helps to correct the food deficit, reduce massive rice imports and address food insecurity in the country. It has led to the identification of six (6) varieties of rice with interesting adaptability skills.
Objective. This study aims to assess and compare the production potential of the six (6) varieties of rainfed rice in southwestern Congo.
Methods. The study was carried out during the 2015 - 2016 and 2016 - 2017 agricultural seasons, in the Loudima (savannah) and Sibiti (forest) Research Stations. It relied on agro-morphological parameters and yield. This is a Fisher block experimental set-up with six (6) treatments and three (3) replicates.
Results. The results show that the yields obtained during the 2015 - 2016 campaign are 1.98 ± 0.35 to 2.76 ± 0.55 t / ha for Loudima and 3.86 ± 0.96 to 4.81 ± 0.92 t/ha for Sibiti. The number of tillers per foot being from 13.67 ± 1.2 to 16.3 ± 3.8 for Sibiti and 4.33 ± 0.58 to 7 ± 1 for Loudima. Likewise, the yields at the two stations in 2016- 2017 are respectively 6.53 ± 1.67 to 9.33 ± 0.45 and 4.1 ± 0.35 to 4.47 ± 0.21 t/ha. The number of tillers, being from 13.33 ± 1.5 to 15 ± 1 for Sibiti and 9.67 ± 3.1 to 18.33 ± 3.2 for Loudima.
Conclusion. These results confirm that the six (6) varieties of rainfed rice present very encouraging production potential in the two localities. They represent a solid basis for the revival of this agricultural sector which will contribute to food security and to fight against poverty in the country.
Editeur :  RAFEA
DOI :  https://dx.doi.org/10.4314/rafea.v6i4.10
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