Volume 25, Issue 2, January 2019, Pages 738–746
Masiala Muanda Gabriel1
1 Attaché de Recherche, Institut National pour l'Étude et la Recherche Agronomiques (INERA), RD Congo
Original language: French
Copyright © 2019 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The present study was led during two crop years (during years 2011 and 2012) at the Research station Inera-gimbi to evaluate the performances of 11 varieties of rain rice under the édapho-climatic conditions of the sector of Bundi. Ten varieties of rain rice (BAIBINGE 1, INERA 7, INERA 8, IRAT 112, IRAT 216, IRAT 341, IR 47686-13-2-2, NERICA 4, NERICA 7, LIENGE) were used in comparison with local witness NGAMBI. The adopted experimental device was that of the complete blocks randomized with three repetitions. Each variety occupied a compartmental dimension of 5 m X 2 m. Several agronomic parameters, namely the percentage of recovery, tillering at 45 days after sowing, the period of 50 % flowering, the period of maturation to 50 %, the height with the insertion of ear, the height of the plants with maturity, the behavior of the varieties vis-a-vis the pyriculariose, the length of the panicles and the output were evaluated with harvest. The data obtained were evaluated by using the analysis of variance (ANOVA). The comparison of average was carried out using the smallest significant difference (PPDS) with the threshold of probability of 5% and 1%. The results obtained indicate that there are significant differences between the varieties for all the evaluated parameters. Five varieties (IR 47686-13-2-2, INERA 8, LIENGE, IRAT 112, and NERICA 7) gave outputs significantly higher than local witness NGAMBI. These varieties in addition had a good resistance to the foliar pyriculariose. So they were regarded as powerful under the local conditions of Gimbi.
Author Keywords: Selection, Oryza sativa, Bundi, Seke-Banza, RDC.
Masiala Muanda Gabriel1
1 Attaché de Recherche, Institut National pour l'Étude et la Recherche Agronomiques (INERA), RD Congo
Original language: French
Copyright © 2019 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The present study was led during two crop years (during years 2011 and 2012) at the Research station Inera-gimbi to evaluate the performances of 11 varieties of rain rice under the édapho-climatic conditions of the sector of Bundi. Ten varieties of rain rice (BAIBINGE 1, INERA 7, INERA 8, IRAT 112, IRAT 216, IRAT 341, IR 47686-13-2-2, NERICA 4, NERICA 7, LIENGE) were used in comparison with local witness NGAMBI. The adopted experimental device was that of the complete blocks randomized with three repetitions. Each variety occupied a compartmental dimension of 5 m X 2 m. Several agronomic parameters, namely the percentage of recovery, tillering at 45 days after sowing, the period of 50 % flowering, the period of maturation to 50 %, the height with the insertion of ear, the height of the plants with maturity, the behavior of the varieties vis-a-vis the pyriculariose, the length of the panicles and the output were evaluated with harvest. The data obtained were evaluated by using the analysis of variance (ANOVA). The comparison of average was carried out using the smallest significant difference (PPDS) with the threshold of probability of 5% and 1%. The results obtained indicate that there are significant differences between the varieties for all the evaluated parameters. Five varieties (IR 47686-13-2-2, INERA 8, LIENGE, IRAT 112, and NERICA 7) gave outputs significantly higher than local witness NGAMBI. These varieties in addition had a good resistance to the foliar pyriculariose. So they were regarded as powerful under the local conditions of Gimbi.
Author Keywords: Selection, Oryza sativa, Bundi, Seke-Banza, RDC.
Abstract: (french)
La présente étude a été conduite pendant deux campagnes agricoles (au cours des années 2011 et 2012) à la Station de Recherche INERA-GIMBI pour évaluer les performances de 11 variétés de riz pluvial dans les conditions édapho-climatiques du secteur de Bundi. Dix variétés de riz pluvial (BAIBINGE 1, INERA 7, INERA 8, IRAT 112, IRAT 216, IRAT 341, IR 47686-13-2-2, NERICA 4, NERICA 7, LIENGE) ont été utilisées en comparaison avec le témoin local NGAMBI. Le dispositif expérimental adopté était celui des blocs complets randomisés avec trois répétitions. Chaque variété occupait une dimension parcellaire de 5 m x 2 m. Plusieurs paramètres agronomiques, à savoir le pourcentage de reprise, le tallage à 45 jours après semis, la période de 50 % floraison, la période de maturation à 50 %, la hauteur à l’insertion de l’épi, la hauteur des plantes à maturité, le comportement des variétés face à la pyriculariose, la longueur des panicules et le rendement ont été évalués à la récolte. Les données obtenues ont été évaluées en utilisant l’analyse de la variance (ANOVA). La comparaison des moyennes a été réalisée à l’aide de la plus petite différence significative (PPDS) au seuil de probabilité de 5% et 1%. Les résultats obtenus indiquent qu’il y a des différences significatives entre les variétés pour tous les paramètres évalués. Cinq variétés (IR 47686-13-2-2, INERA 8, LIENGE, IRAT 112, et NERICA 7) ont donné des rendements significativement supérieurs au témoin local NGAMBI. Ces variétés ont présenté par ailleurs une bonne résistance à la pyriculariose foliaire. De ce fait, elles ont été retenues comme performantes dans les conditions locales de Gimbi.
Author Keywords: Sélection, Oryza sativa, , Bundi, Seke-Banza, RDC.
How to Cite this Article
Masiala Muanda Gabriel, “Sélection des variétés de riz pluvial (Oryza sativa) adaptées aux conditions agroécologiques du Secteur de Bundi (Territoire de Seke-Banza en République Démocratique du Congo),” International Journal of Innovation and Applied Studies, vol. 25, no. 2, pp. 738–746, January 2019.
