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A breeding program to select low-mimosine lines of leucaena has been in progress since 1970. Selections were evaluated in two field trials at Lansdown. Although the low-mimosine selections did indeed have lower mimosine than the control cultivars, their dry matter yield was also inferior (about t...


Bray, RAHutton, EMBeattie, WM[Breeding Leucaena for low-mimosine: Field evaluation of selections]Breeding Leucaena for low-mimosine: Field evaluation of selections
Autor: Reynolds, SG

Exotic legumes (Calopogonium mucunoides, Centrosema pubescens, Pueraria phaseoloides, Macroptilium atropurpureum) and indigenous legumes (Desmodium heterophyllum, Mimosa pudica, Vigna luteola) were compared for dry matter (DM) and crude protein (CP) production, nitrogen fixation and nitrogen tran...


Reynolds, SG[Contributions to yield, nitrogen fixation and transfer by local and exotic legumes in tropical grass-legume mixtures in Western Samoa]Contributions to yield, nitrogen fixation and transfer by local and exotic legumes in tropical grass-legume mixtures in Western Samoa
Tiemann, Tassilo T.Cortés, J.E.Pabon, MLHess, HDKreuzer, M.Carulla, Juan E.[In vitro evidence for the importance of cultivation conditions on the effects of Calliandra tannins on ruminal escape of soybean protein and its post-ruminal degradability]In vitro evidence for the importance of cultivation conditions on the effects of Calliandra tannins on ruminal escape of soybean protein and its post-ruminal degradability

Inoculum of the VA mycorrhizal fungusGlomus manihotis was added to an Oxisol containing only a moderate inoculum potential of indigenous VA mycorrhizal fungi. Its effect on growth and P uptake of two pasture plant species was investigated in pot experiments. This effect was studied at a range of ...


Salinas, JGSanz Scovino, José IgnacioSieverding, E[Importance of VA mycorrhizae for phosphorus supply to pasture plants in tropical Oxisols]Importance of VA mycorrhizae for phosphorus supply to pasture plants in tropical Oxisols
Autor: Stanton, J.M.

Pterotylenchus cecidogenus did not inhibit germination of Desmodium ovalifolium but did reduce survival of seedlings and root and stem growth. Stem gall formation was associated with nematode population densities which were positively correlated with plant age at time of inoculation. Nematode pop...


Stanton, J.M.[Biology and influence of Pterotylenchus cecidogenus on Desmodium ovalifolium]Biology and influence of Pterotylenchus cecidogenus on Desmodium ovalifolium

Legume tissue quality is a key factor for enhancement of feed resources and contribution to soil fertility in mixed crop-livestock production systems. To compare methods used by soil scientists and animal-nutritionists to assess quality of plant materials, three woody tropical legumes with contra...


Tscherning, KBarrios, E.Lascano, Carlos E.Peters, MichaelSchultze-Kraft, Rainer[Effects of sample post harvest treatment on aerobic decomposition and anaerobic in-vitro digestion of tropical legumes with contracting quality]Effects of sample post harvest treatment on aerobic decomposition and anaerobic in-vitro digestion of tropical legumes with contracting quality

A small-plot grazing trial was conducted to assess selection by oesophageal-fistulated steers of 5 shrubby legumes adapted to acid, low-fertility soils (Centrosema arenarium, Desmodium strigillosum, D. velutinum, Flemingia macrophylla, and Tadehagi triquetrum) and the herbaceous Centrosema acutif...


Thomas, D.Schultze-Kraft, Rainer[Evaluation of five shrubby legumes in comparison with Centrosema acutifolium, Carimagua, Colombia]Evaluation of five shrubby legumes in comparison with Centrosema acutifolium, Carimagua, Colombia
Autor: Grof, B

The yield attributes of 18 accessions of Centrosema, comprising the species, C. macrocarpum, C. brasilianum, Centrosema sp. nov. were compared in two experiments under a cutting regime. Small, grazed swards of various Centrosema spp. sown with Andropogon gayanus in mixture were also studied, with...


Grof, B[Forage potential of some Centrosema species in the Llanos Orientales of Colombia]Forage potential of some Centrosema species in the Llanos Orientales of Colombia
Lourenco, A.J.Lascano, Carlos E.[Efeito do pastejo sequencial na composicao botanica da forragem disponivel e da dieta selecionada por bovinos em pastos de Andropogon gayanus Kunth consorciado]Efeito do pastejo sequencial na composicao botanica da forragem disponivel e da dieta selecionada por bovinos em pastos de Andropogon gayanus Kunth consorciado

Evidence is presented about the presence of Phaseolus microcarpus in Costa Rica, while it was previously reported northwards in other Central American countries and Mexico. Fourteen populations are currently known, four from the Peninsula of Nicoya, and ten are in the tropical dry forest of the m...


Debouck, Daniel G.Chaves-Barrantes, Néstor FelipeAraya Villalobos, Rodolfo[New records of Phaseolus microcarpus (Leguminosae: Phaseoleae) for Costa Rica]New records of Phaseolus microcarpus (Leguminosae: Phaseoleae) for Costa Rica

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