Information on available diversity and drought resistance among Chloris gayana accessions would offer considerable potential to select genotypes to alleviate the feed inadequacy that constrains livestock production in dry tropical areas. A collection of 62 C. gayana accessions from the genebank o...
Ponsens, J.
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Hanson, Jean
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Schellberg, J.
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Moeseler, B.M.
,
[Characterization of phenotypic diversity, yield and response to drought stress in a collection of Rhodes grass (Chloris gayana Kunth) accessions]
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Characterization of phenotypic diversity, yield and response to drought stress in a collection of Rhodes grass (Chloris gayana Kunth) accessions
All eastern Africa is in the tropics, but its grasslands cover a very wide range of altitudes. Extensive grasslands are mostly in arid and semi -arid zones. The area is subject to droughts and a high degree of pastoral risk. Potential vegetation is largely desert and semi-desert, bush and woodlan...
Reid, Robin S.
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Serneels, S.
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Nyabenge, M.
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Hanson, Jean
,
[The changing face of pastoral systems in grass dominated ecosystems of Eastern Africa]
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The changing face of pastoral systems in grass dominated ecosystems of Eastern Africa
Jamnadass, Ramni H.
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Mace, E.S.
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Hiernaux, Pierre H.Y.
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Muchugi, A.
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Hanson, Jean
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[Population genetic responses of wild forage species to grazing along a rainfall gradient in the Sahel: A study combining phenotypic and molecular analyses]
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Population genetic responses of wild forage species to grazing along a rainfall gradient in the Sahel: A study combining phenotypic and molecular analyses
Jones, Peter G.
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Arocha, Y.
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Zerfy, T.
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Proud, J.
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Abebe, G.
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Hanson, Jean
,
[A stunting syndrome of Napier grass in Ethiopia is associated with a 16SrIII Group phytoplasma]
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A stunting syndrome of Napier grass in Ethiopia is associated with a 16SrIII Group phytoplasma
Many Vigna species are important in agriculture, but a high content of hard seeds usually present which create the difficulties in seed testing and sowing. The effectiveness of the pretreatment periods (0, 3, 6, 9, 12 and 15 min.) for breaking dormancy of hard seeds using concentrated sulfuric ac...
Wang, Y.R.
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Hanson, Jean
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Mariam, Y.W.
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[Effect of sulfuric acid pretreatment on breaking hard seed dormancy in diverse accessions of five wild Vigna species]
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Effect of sulfuric acid pretreatment on breaking hard seed dormancy in diverse accessions of five wild Vigna species
The effects of pretreatment with sodium hypochlorite and plating onto potato dextrose agar, oatmeal agar, water agar and blotter of the range and incidence of fungi isolated from seeds of Stylosanthes species were studied. A survey was made of the fungi associated with 39 seed lots of S. guianens...
Nan, Z.B.
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Hanson, Jean
,
[Detection of seedborne fungi in Stylosanthes guianensis, S. hamata, and S. scabra]
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Detection of seedborne fungi in Stylosanthes guianensis, S. hamata, and S. scabra
Several differnt methods using different numbers of plants and observations have been used for characterisation of germplasm. In this study two different observation strategies for characterisation were tested in order to determine the minimum number of observations and plant per accession whilst...
Wouw, M. van de
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Hanson, Jean
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Nokoe, S.
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[Observation strategies for morphological characterisation of forages]
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Observation strategies for morphological characterisation of forages
Duncan, Alan J.
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Hanson, Jean
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Spielman, David J.
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Puskur, Ranjitha
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[Forage seed supply in Ethiopia: Some thoughts on status and how it might evolve]
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Forage seed supply in Ethiopia: Some thoughts on status and how it might evolve
The mating system of Sesbania sesban was studied using one natural population and two cultivated populations. A large number of progeny (600) was assayed from each population for one polymorphic locus of Malate dehydrogenase (Mdh). The level of out-crossing in the studied populations ranged from ...
Gebremariam, G.
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Nemomissa, S.
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Demissie, A.
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Hanson, Jean
,
[The mating system of Sesbania sesban (L.) Merr. (leguminosae)]
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The mating system of Sesbania sesban (L.) Merr. (leguminosae)
Ramírez Villegas, Julián
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Jarvis, Andy
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Fujisaka, Sam
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Hanson, Jean
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Leibing, C.
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[Crop and forage genetic resources: International interdependence in the face of climate change]
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Crop and forage genetic resources: International interdependence in the face of climate change