[ Sélection des clones performants de manioc (Manihot esculenta) à Gimbi (Secteur de Bundi, Territoire de Seke-Banza) en République Démocratique du Congo ]
Volume 25, Issue 2, January 2019, Pages 747–759
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.
A study was led to the station of the National Institute for the Study and the Agronomic research (INERA) of Gimbi, sector of Bundi, territory of Seke-Banza, province of Kongo Central, Democratic République of Congo, during the farming years 2011/2012 and 2012/2013 in order to evaluate the various clones of cassava cultivated in the agroecologic conditions in this part of the country. Thirteen cultivars of manioc including 11 clones (2008/003, 2008/019, 2008/0223, 2008/0330, 2007/0305, 2007/021, 2007/071, 2007/030, 2007/084, 2007/089, 2007/0102) and 2 witnesses:local (Anti-ota) and improved (Obama) were evaluated in a test installed according to the device of the blocks completely randomized with 4 repetitions. Several parameters were observed to know the date of plantation, the duration of the time of the plantation to the recovery, percentage of recovery 1st MAP, the incidence and severity of diseases (CMD, CAD, CBB…), the ravageurs (white Fly, Thrips, CART and others),le diameter with the collet, the height of the plants with 3,6,9 and 12th MAP, the height of ramification, the number of collected seedlings, the index of harvest,le a number of marketable and nonmarketable roots, the color of pulp, the output of tuberoses roots. The results obtained indicate that in 12 months after plantation clones 2007/0305 with 18,937 T/ha, 2008/0223 with 18,852 T/ha, 2007/0102 with 18,410 T/ha, 2008/003 with 18,312 T/ha and 2008/0330 with 17,873 T/ha had an output higher than the improved witnesses than local (Obama with 17,610 T/ha, Anti-ota with 9,335 T/ha). The African mosaic was observed at the local witness with a weak incidence. In spite of the significant differences observed between the performances of these varieties, one noted in general that the averages of the four evaluated parameters expressed a tendency to the growth up to 15 MAP.
Author Keywords: Sélection, cultivar, cassava, Gimbi, Bundi, Seke-Banza.
Volume 25, Issue 2, January 2019, Pages 747–759
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
A study was led to the station of the National Institute for the Study and the Agronomic research (INERA) of Gimbi, sector of Bundi, territory of Seke-Banza, province of Kongo Central, Democratic République of Congo, during the farming years 2011/2012 and 2012/2013 in order to evaluate the various clones of cassava cultivated in the agroecologic conditions in this part of the country. Thirteen cultivars of manioc including 11 clones (2008/003, 2008/019, 2008/0223, 2008/0330, 2007/0305, 2007/021, 2007/071, 2007/030, 2007/084, 2007/089, 2007/0102) and 2 witnesses:local (Anti-ota) and improved (Obama) were evaluated in a test installed according to the device of the blocks completely randomized with 4 repetitions. Several parameters were observed to know the date of plantation, the duration of the time of the plantation to the recovery, percentage of recovery 1st MAP, the incidence and severity of diseases (CMD, CAD, CBB…), the ravageurs (white Fly, Thrips, CART and others),le diameter with the collet, the height of the plants with 3,6,9 and 12th MAP, the height of ramification, the number of collected seedlings, the index of harvest,le a number of marketable and nonmarketable roots, the color of pulp, the output of tuberoses roots. The results obtained indicate that in 12 months after plantation clones 2007/0305 with 18,937 T/ha, 2008/0223 with 18,852 T/ha, 2007/0102 with 18,410 T/ha, 2008/003 with 18,312 T/ha and 2008/0330 with 17,873 T/ha had an output higher than the improved witnesses than local (Obama with 17,610 T/ha, Anti-ota with 9,335 T/ha). The African mosaic was observed at the local witness with a weak incidence. In spite of the significant differences observed between the performances of these varieties, one noted in general that the averages of the four evaluated parameters expressed a tendency to the growth up to 15 MAP.
Author Keywords: Sélection, cultivar, cassava, Gimbi, Bundi, Seke-Banza.
Abstract: (french)
Une étude a été conduite à la station de l’Institut National pour l’Étude et la Recherche Agronomique (INERA) de Gimbi, secteur de Bundi, territoire de Seke-Banza, province du Kongo Central, République Démocratique du Congo, durant les années culturales 2011/2012 et 2012/2013 en vue d’évaluer les différents clones de manioc cultivées aux conditions agroécologiques dans cette partie du pays. Treize cultivars de manioc dont 11 clones (2008/003, 2008/019, 2008/0223, 2008/0330, 2007/0305, 2007/021, 2007/071, 2007/030, 2007/084, 2007/089, 2007/0102) et 2 témoins : locale (Anti-ota) et améliorée (Obama) ont été évaluées dans un essai installé suivant le dispositif des blocs complètement randomisés avec 4 répétitions. Plusieurs paramètres ont été observés à savoir la date de plantation , la durée du temps de la plantation à la reprise, pourcentage de la reprise 1er MAP ,l’incidence et sévérité des maladies (CMD, CAD, CBB,…), les ravageurs (Mouche blanche, Thrips, CART et autres) ,le diamètre au collet, la hauteur des plantes à 3,6,9 et 12ème MAP, la hauteur de ramification, le nombre de plants récoltés , l’indice de récolte ,le nombre de racines commercialisables et non commercialisables, la couleur de la pulpe, le rendement en racines tubéreuses. Les résultats obtenus indiquent qu’à 12 mois après plantation les clones 2007/0305 avec 18,937 T/ha, 2008/0223 avec 18,852 T/ha, 2007/0102 avec 18,410 T/ha, 2008/003 avec 18,312 T/ha et 2008/0330 avec 17,873 T/ha avaient un rendement supérieur aux témoins améliorés que local (Obama avec 17,610 T/ha, Anti-ota avec 9,335 T/ha). La mosaïque africaine a été observée chez le témoin local avec une faible incidence. Malgré les différences significatives observées entre les performances de ces variétés, on a noté en général que les moyennes des quatre paramètres évalués ont manifesté une tendance à la croissance jusqu’à 15 MAP.
Author Keywords: Sélection, Clone, Manioc, Gimbi, Bundi, Seke-Banza.
How to Cite this Article
Masiala Muanda Gabriel, “Selection of the effective cultivars of cassava (Manihot esculenta) in Gimbi (Sector of Bundi, Territory of Seke-Banza) in Democratic Republic of Congo,” International Journal of Innovation and Applied Studies, vol. 25, no. 2, pp. 747–759, January 2019.
