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Napier grass (Pennisetum purpureum), the most important forage crop in East Africa, has recently been affected by a devastating disease named Napier Grass Stunt (NGS). A phytoplasma of group 16SrI has been associated with NGS in Kenya and Uganda, whereas in Ethiopia, group 16SrIII was previously ...


Arocha, Y.Zerfy, T.Abebe, G.Proud, J.Hanson, JeanWilson, M.Jones, Peter G.Lucas, J.[Identification of potential vectors and alternative plant hosts for the phytoplasma associated with Napier grass stunt disease in Ethiopia]Identification of potential vectors and alternative plant hosts for the phytoplasma associated with Napier grass stunt disease in Ethiopia

The Crop Genebank Knowledge Base (CGKB) is an initiative of the Consultative Group of International Agriculture Research (CGIAR) System-wide Genetic Resources Programme (SGRP). The CGKB was created for sharing knowledge about best practices for managing plant genetic resources (PGR), and making e...


Jorge, M.A.B.Claessens, G.Hanson, JeanDulloo, M.E.Goldberg, E.D.Thormann, I.Alemayehu, S.Gacheru, E.Amri, A.Benson, E.Dumet, D.Roux, N.Rudebjer, P.G.Hamilton, Ruaraidh S.Sánchez, I.Sharma, S.Taba, S.Upadhyaya, Hari D.Houwe, I. van den[Knowledge sharing on best practices for managing crop genebanks]Knowledge sharing on best practices for managing crop genebanks
Alexander, G.Ravi, D.Reddy, C.R.Saxena, K.B.Hanson, JeanUpadhyaya, Hari D.Blümmel, Michael[Forage yield and quality in pigeonpea germplasm lines]Forage yield and quality in pigeonpea germplasm lines

The response of wheat (Triticum aestivum cv. ‘Enkoy’) to application of leaf prunings of nine agroforestry-tree species was investigated in a field trial and a six-week pot trial. The tree species were Grevillea robusta, Erythrina abyssinica, Gliricidia sepium, Albizia schimperiana, Acacia niloti...


Anthofer, J.Hanson, JeanJutzi, S.C.[Wheat growth as influenced by application of agroforestry-tree prunings in Ethiopian highlands]Wheat growth as influenced by application of agroforestry-tree prunings in Ethiopian highlands
Edeme, J.Hanson, Jean[First report of alfalfa mosaic, bean common mosaic and broad bean stain viruses in Macrotyloma axillare]First report of alfalfa mosaic, bean common mosaic and broad bean stain viruses in Macrotyloma axillare

Fifty six germplasm accessions of the important East African fodder crop Napier grass, Pennisetum purpureum, and its hybrids with P. glaucum, were characterised using 67 random amplified polymorphic DNA (RAPD) fragments. No or very low intra-accession variation was found for 49 of the accessions ...


Lowe, A.J.Thorpe, W.R.Teale, A.J.Hanson, Jean[Characterisation of germplasm accessions of Napier grass (Pennisetum purpureum and P. purpureum x P. glaucum hybrids) and comparison with farm clones using RAPD]Characterisation of germplasm accessions of Napier grass (Pennisetum purpureum and P. purpureum x P. glaucum hybrids) and comparison with farm clones using RAPD

Six-week-old wheat seedlings (Triticum aestivum) grown in pots with an alfisol soil with vertic properties and mulched at a rate equivalent to 10 t ha-1 with leaf prunings of Grevillea robusta, Erythrina abyssinica. Gliricidia sepium, Albizia schimperiana, Acacia nilotica, Acacia polyacantha, Leu...


Anthofer, J.Hanson, JeanJutzi, S.C.[Plant nutrient supply from nine agroforestry tree species to wheat (Triticum aestivum) analysed by vector diagnosis]Plant nutrient supply from nine agroforestry tree species to wheat (Triticum aestivum) analysed by vector diagnosis

Aqueous acetone extracts of mature leaves from 10 accessions of two species of Sesbania plants were prepared and anlysed by high-performance liquid chromatography (HPLC). The HPLC phenolic profiles were used to develop a classification rule to distinguish between accessions. Out of the 44 mature ...


Plumb, V.E.Wood, C.D.Gay, C.Hanson, JeanHeering, J.H.[The use of HPLC-derived phenolic profiles as a means of classifying Sesbania accessions]The use of HPLC-derived phenolic profiles as a means of classifying Sesbania accessions

Acacia angustissima has potential in agroforestry systems for forage production in tropical environments. However, feeding trials indicate that the leaves are potentially toxic. Signs of toxicity in sheep are similar to those presented by sheep fed flatpea (Lathyrus sylvestris) hay which contains...


Reed, J.D.Gebre-Mariam, G.Robinson, C.J.Hanson, JeanOdenyo, A.A.Treichel, P.M.[Acetyldiaminobutanoic acid, a potential lathyrogenic amino acid in leaves of Acacia angustissima]Acetyldiaminobutanoic acid, a potential lathyrogenic amino acid in leaves of Acacia angustissima

Phenolic concentration in the leaves from 103 different accessions of Sesbania sesban (L) Merr was determined and HPLC was used to analyse the extractable phenolics. The chromatograms were subjected to cluster analysis. large variation was observed between accessions in the soluble phenolic and i...


Heering, H.Reed, J.D.Hanson, Jean[Differences in Sesbania sesban accessions in relation to their phenolic concentration and HPLC fingerprints]Differences in Sesbania sesban accessions in relation to their phenolic concentration and HPLC fingerprints

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