IPGRI maintains a number of databases with summary information on ex situ germplasm collections worldwide. The data include address information on organizations holding germplasm and summary information on the type of germplasm that is maintained, such as: species names, number of accessions per ...
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
Adekunle, A.
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Olowu, Terry A.
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Ladele, A.A.
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[Bridging the communication gap between scientists and farmers in Katsina State of Nigeria: a review of the activities of the information and communication support for agricultural growth in Nigeria (ICSNigeria) project in Katsina State of Nigeria]
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Bridging the communication gap between scientists and farmers in Katsina State of Nigeria: a review of the activities of the information and communication support for agricultural growth in Nigeria (ICSNigeria) project in Katsina State of Nigeria
Kormawa, P.M.
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Ega, L.
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Olukosi, J.
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Adamu, I.
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[Needs assessment study for market-driven agricultural technology transfer and commercialization publications in Katsina State: RUSEP monograph, No. 3]
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Needs assessment study for market-driven agricultural technology transfer and commercialization publications in Katsina State: RUSEP monograph, No. 3
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
Collecting missions under the auspices of the IITA to Zimbabwe, Tanzania, Chad, Swaziland, Lesotho and Somalia covered over 24 000 km and collected 2023 accessions of cultivated crops and wild material. Details are given for each of the 6 missions, with information on routes taken, regions visite...
Padulosi, S.
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[Plant germplasm collecting missions carried out from Mar 1987 to January 1989 in six African countries]
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Plant germplasm collecting missions carried out from Mar 1987 to January 1989 in six African countries
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 technology adoption and diffusion in a given society is important for focusing future research, extension, government and NGO - led development efforts aiming at benefiting the majority of Ethiopian farmers. The identification of the roles of social networks that influence technolo...
Molla, D.K.
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[Social networks and diffusion of agricultural technology: the case of sorghum in Metema Woreda, North Gondar, Ethiopia]
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Social networks and diffusion of agricultural technology: the case of sorghum in Metema Woreda, North Gondar, Ethiopia