Striga hermonthica is an important cause of yield loss in sorghum in the semi‐arid zone of Africa. Two trials were conducted in northern Cameroon to evaluate the effect of herbicides for two cropping seasons on densities of emerged Striga in treatment years and on densities of Striga seed and pla...
Carsky, R.
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Singh, L.
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Ndikawa, R.
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[Effect of herbicide and handweeding on current and subsequent season Striga hermonthica density on sorghum]
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Effect of herbicide and handweeding on current and subsequent season Striga hermonthica density on sorghum
In field trials conducted in Nigeria during 1991-92, the factors affecting the seed dispersal of Striga spp. were evaluated. Petrolatum-coated microscope slides placed at regular intervals from S. hermonthica plants and suspended from trees at 1-, 2- and 3-m above-ground heights within and around...
Berner, D.K.
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Cardwell, K.
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Faturoti, B.
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Ikie, F.
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Williams, O.
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[Relative roles of wind, crop seeds, and cattle in the dispersal of Striga species]
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Relative roles of wind, crop seeds, and cattle in the dispersal of Striga species
Reports the findings of a mission carried out by the International Institute of Tropical Agriculture in Zimbabwe to gather genetic resources of cowpea, rice, bambarra groundnut and their wild relatives. 461 samples of 365 species were collected. Sampling was made over 140 sites of both natural ve...
Evaluation of mechanisms of resistance among 12 grain sorghum, Sorghum bicolor (L.) Moench, sources of resistance to the biotype E greenbug, Sehizaphis graminum (Rondani), indicated that the most important mechanism within this germplasm seemed to be antibiosis (with a few exceptions). The source...
Dixon, O.A.G.
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Bramel-Cox, P.J.
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Reese, J.C.
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Harvey, T.L.
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[Mechanisms of resistance and their interactions in twelve sources of resistance to biotype E greenbug (Homoptera: Aphididae) in sorghum]
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Mechanisms of resistance and their interactions in twelve sources of resistance to biotype E greenbug (Homoptera: Aphididae) in sorghum
Twelve samples of Striga hermonthica seed were collected from four host crops [millet (4), sorghum (4), a sorghum/millet intercrop (3) and maize (1)] from all the main areas of S. hermonthica infestation in Nigeria and were tested on eight genotypes of three test crops [maize (4), sorghum (2) and...
Kim, S.K.
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Akintunde, A.
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Walker, P.
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[Responses of maize, sorghum and millet host plants infestation by Striga hemonthica]
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Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
Information on the potential of pollen mediated gene flow (PMGF) in sorghum is required for ensuring varietal purity and to mitigate risk transgenic gene flow. Replicated trials were conducted in Kenya using a local landrace, ‘Ochuti’ as pollen donor surrounded by male-sterile pollen baits. Frequ...
Achieving and maintaining global food security is challenged by changes in population, income, and climate, among other drivers. Assessing these threats and weighing possible solutions requires a robust multidisciplinary approach. One such approach integrates biophysical modeling with economic mo...
Islam, S.
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Cenacchi, N.
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Sulser, T.B.
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Gbegbelegbe, Sika
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Hareau, G.
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Kleinwechter, U.
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Mason-D'Croz, Daniel
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Nedumaran, S.
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Robertson, R.
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Robinson, S.
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Wiebe, K.
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[Structural approaches to modeling the impact of climate change and adaptation technologies on crop yields and food security]
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Structural approaches to modeling the impact of climate change and adaptation technologies on crop yields and food security
Nsahlai, I.V.
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Umunna, N.N.
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Osuji, P.O.
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[Complementarity of bird-resistant and non-bird-resistant varieties of sorghum stover with cottonseed cake and noug (Guizotia abyssinica) cake when fed to sheep]
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Complementarity of bird-resistant and non-bird-resistant varieties of sorghum stover with cottonseed cake and noug (Guizotia abyssinica) cake when fed to sheep
Striga hermonthica (L) Moench, a parasitic weed species, is a major constraint to sorghum production in the savanna zones of north-eastern Nigeria. The aim of this study was to assess the influence of farmer practices on Striga infestation of sorghum fields in the region. Random sampling techniqu...
Field screening of maize (Zea mays L.) and sorghum [Sorghum bicolor (L.) Moench] can be an efficient means of selecting for resistance to the parasitic plant Striga hermonthica (Del.) Benth. Spatial variability in natural S. hermonthica seed infestations necessitates supplemental infestation for ...