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Strains of Xanthomonas campestris pv. vignicola (Xcv), isolated from cowpea leaves with blight or minute pustules and collected from various geographic areas, were selected on the basis of pathological and physiological features. All strains were analyzed for genotypic markers by two methods: rib...


Verdier, ValérieAssigbétsé, K.Khatri-Chhetri, G.Wydra, K.Ruldoph, KGeiger, JP[Molecular characterization of the incitant of cowpea bacterial blight and pustule, Xanthomonas campestris pv. vignicola]Molecular characterization of the incitant of cowpea bacterial blight and pustule, Xanthomonas campestris pv. vignicola

Plant-to-plant phenotypic variation has been observed within accessions of S. capitata maintained at the Centro Internacional de Agricultura Tropical (CIAT) since shortly following introduction. A small experiment was conducted to determine the potential importance of natural outcrossing as a cau...


Miles, John W.[Natural outcrossing in Stylosanthes capitata]Natural outcrossing in Stylosanthes capitata

Nitrogen fixation in nine common bean (Phaseolus vulgaris L.) lines was estimated using the 15N isotope dilution method at two locations in two seasons. In the first season at one location no N2 fixation was detected while in the second season up to 51 kg N ha?1 were estimated. There were signifi...


Kipe-Nolt, Judith A.Vargas, H.Giller, Ken E.[Nitrogen fixation in breeding lines of Phaseolus vulgaris L.]Nitrogen fixation in breeding lines of Phaseolus vulgaris L.

Controlled studies to determine the efficacy of pseudostem trapping in reducing adult populations of the banana weevil, Cosmopolites sordidus (Germar), were conducted under farmer conditions in Ntungamo district, Uganda. Twenty-seven farms were stratified on the basis of C. sordidus population de...


Gold, C.Okech, S.Nokoe, S.[Evaluation of pseudostem trapping as a control measure against banana weevil, Cosmopolites sordidus (Coleoptera: Curculionidae) in Uganda]Evaluation of pseudostem trapping as a control measure against banana weevil, Cosmopolites sordidus (Coleoptera: Curculionidae) in Uganda

Background The emergence of Anopheles populations capable of withstanding lethal doses of insecticides has weakened the efficacy of most insecticide based strategies of vector control and, has highlighted the need for further studies on the mechanisms of insecticide resistance and the various fa...


Djouaka, R.F.Bakare, A.A.Bankole, H.S.Doannio, J.M.C.Coulibaly, O.N.Kossou, H.Tamo, M.Basene, H.I.Popoola, K..K.Akogbeto, M.C.[Does the spillage of petroleum products in Anopheles breeding sites have an impact on the pyrethroid resistance?]Does the spillage of petroleum products in Anopheles breeding sites have an impact on the pyrethroid resistance?
Tavenner, KatieFraval, SimonOmondi, Immaculate A.Crane, Todd A.[Gendered reporting of household dynamics in the Kenyan dairy sector: Trends and implications for low emissions dairy development]Gendered reporting of household dynamics in the Kenyan dairy sector: Trends and implications for low emissions dairy development

Meiotic studies in Musa L. have been hampered by: 1) time-consuming efforts required to find the correct stages of cell division; 2) rigidity of the microsporocyte cell wall that makes preparation of smears difficult; and 3) poor staining of prophase chromosomes. This study describes an improved ...


Adeleke, M.Pillay, M.Okoli, B.E.[An improved method for examining meiotic chromosomes in Musa L.]An improved method for examining meiotic chromosomes in Musa L.

Background In Vietnam, dengue fever (DF) is still a leading cause of hospitalization. The main objective of this study was to evaluate the seasonality and association with climate factors (temperature and precipitation) on the incidences of DF in four provinces where the highest incidence rates w...


Hu Suk LeeHung Nguyen-VietVu Sinh NamLee, M.Won, S.Phuc Pham DucGrace, Delia[Seasonal patterns of dengue fever and associated climate factors in 4 provinces in Vietnam from 1994 to 2013]Seasonal patterns of dengue fever and associated climate factors in 4 provinces in Vietnam from 1994 to 2013

Secondary traits can improve precision with which drought or low soil nitrogen (low-N) tolerant maize (Zea mays L.) genotypes are identified, compared to measuring only grain yield under each stress. The objective of this study was to identify secondary traits for indirect selection for yield imp...


Badu-Apraku, B.Akinwale, R.O.Ajala, S.O.Menkir, A.Fakorede, M.A.B.Oyekunle, M.[Relationships among traits of tropical early maize cultivars in contrasting environments]Relationships among traits of tropical early maize cultivars in contrasting environments

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