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Articles by Camara Brahima
Total Records ( 4 ) for Camara Brahima
  Ouattara Genefol , Camara Brahima , Bomisso Edson Lezin , Cherif Mamadou , Sorho Fatogoma , Dick Acka Emmanuel , Kone Daouda and Yocoli Eugene
  Background and Objective: The insertion of MD2 pineapple in the international trade of fruits has helped reduce drastically the share of Côte d’Ivoire, a long-time leader in the European market with the variety Smooth Cayenne. In order to regain the lost market share, the Ivorian pineapple producers are considering a varietal diversification that goes through an adaptation of MD2 cultivation to the local ecological conditions. Thus, the study conducted in three pineapple-producing cities (Bonoua, Dabou, Tiassale) aimed at improving the performance of MD2 variety in pedoclimatic conditions of Southern Côte d’Ivoire. Methodology: The effects of three planting beds: Flat land (TP), bare ridge (BSP) and ridge covered with polyethylene film (BAP) and two planting densities: 50000 and 70000 seedlings ha–1 (D50 and D70 respectively) were assessed on performance parameters through a split-plot design. Results: The results showed that in Bonoua and Dabou, the crop cycle of MD2 pineapple grown in short rainy season was relatively short (12 months) regardless of the planting bed and density. In Tiassale, the average fruit weight and the highest gross yields were recorded on the ridges covered with polyethylene film. Furthermore, in all cities subjected to experiment, high planting densities (70000 plants ha–1) were marked out by the highest yields. Conclusion: The adoption of these results by producers could improve the production of MD2 pineapple in Côte d’Ivoire.
  Tuo Seydou , Amari Ler-N`ogn Dade Georges Elisee , Cherif Mamadou , Ouedraogo Somgnogdin Leonard , Kassi Fernand , Kouame Koffi Gaston , Camara Brahima and Kone Daouda
  Background and Objective: Plantain is an important food for many populations in many countries of the humid tropics. However, its production in traditional farming systems by smallholders is threatened by Black Leaf Streak Disease (BLSD) caused by the ascomycete fungus Mycosphaerella fijiensis Morelet responsible for significant crop losses. Limitations and disadvantages relating to the methods of chemical and genetic control of this disease suggest the efficient use of tolerant hybrids in reasoned combination between other strategies (such as chemical and biological control) that are available to the producer. This study was conducted in order to compare the agronomic performance of plantain varietal crop combinations for sustainable management of BLSD in the very susceptible cultivar "Orishele" under conditions of natural infestation. Methodology: For this purpose, two trials were set up in Azaguie-Ahoua, in Southeastern Côte d’Ivoire, in 2013 and 2014 according to an experimental design of split-plot. Three repetitions each including treatments were assessed. Observations were made mainly on yield parameters in the first cropping cycle. Results: Significant differences were observed between the number of functional leaves at flowering and harvest, the bunch weight, the number of fingers of the bunch, the number of fingers, the weight, the length and width of reference fruits of the second and fourth hands. The best values were obtained with "Orishele" in crop combination with seedlings tolerant to BLSD in the different prototypes. However, no difference was observed between cropping cycles (Planting-flowering-harvest). Conclusion: These results show that plantain cultivation in combination with sensitive and tolerant varieties in almost equal proportions is a good strategy to slow down the spread of BLSD and ensure a better yield at harvest in cultivars sensitive to this disease.
  Affery Arthur Martin , Abo Kouabenan , Wonni Issa , Tuo Seydou , Kassi Fernand Martial , Camara Brahima and Kone Daouda
  Background and Objective: Cassava (Manihot esculenta Crantz) is an important crop in intertropical areas. However, it is subject to many diseases, among them the bacterial blight caused by Xanthomonas axonopodis pv. manihotis. The objective of this study was to assess the behavior of two varieties of cassava, including a traditional one (Diarrassouba) and an improved one (Bocou 1) in the area of Ferkessédougou endemic to bacterial blight and on the other hand, to test the bactericidal activity of NECO, a biological product made of essential oil extracted from Ocimum gratissimum. Materials and Methods: Eight increasing concentrations of NECO in comparison with the reference Callicuivre were used to assess the in vitro antibacterial activity and the 5 mL L–1 NECO dose was used in situ. Data were analyzed with one way ANOVA and Statistica software. Results: The results show that NECO exhibits bacterial inhibitory activity with diameters ranging from 0.34-3.46 cm. In situ, the use of NECO at 5 mL L–1 dose significantly decreases bacterial blight in the range of 74.94-59.35%, depending on the crop season. Conclusion: NECO could, therefore, be used as an alternative to synthetic products in cassava bacterial blight control.
  Tuo Seydou , Amari Ler-N`ogn Dade Georges Elisee , Camara Brahima , Soro Sibirina , Sorho Fatogoma , Abo Kouabenan , Ouedraogo Somgnogdin Leonard and Kone Daouda
  Background and Objective: An assessment trial on the behavior of five varieties of banana and plantain cultivars under natural infestation by Mycosphaerella fijiensis was carried out in Azaguié-Ahoua in Southern Côte d’Ivoire, in 2013 and repeated in 2014 for selecting varieties that are productive and tolerant to Black Sigatoka (BLSD). Methodology: The trial was set up in split-plot with three repetitions. The banana tree suckers were planted, with a density of 1,600 plants per hectare, that is a spacing of 2.5 and over 2.5 m. In the 4th month after planting, observations and measurements focused on agronomic and phytopathological descriptors so as to assess yield components and sensitivity of the varieties to BLSD. Results: The results indicated that hybrids PITA 3 and FHIA 21 introduced were the most tolerant and productive and the local cultivar "Orishele", the most sensitive and least productive. These hybrids PITA 3 and FHIA 21 presented respective gross yields of 18.50 and 21.22 t ha–1 in the first crop cycle and 10.62 and 14.98 t ha–1 in the second crop cycle with a high tolerance to BLSD. Whereas, the local cultivar "Orishele" presented a gross yield of 11.49 and 5.63 t ha–1 in the first and second crop cycle, respectively with a high sensitivity to BLSD. Conclusion: In order to improve the performance of the local cultivar "Orishele" appreciated by consumers it seems appropriate to continue research in an agronomic approach focusing on its cultivation in combination with tolerant hybrids for an integrated management of Black Sigatoka.
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