An experiment was conducted on an Ultisol at the International Institute of Tropical Agriculture (IITA) High Rainfall Station, Onne, in the humid forest zone of south-eastern Nigeria. The objective of the study was to define groups of multipurpose trees using multiple variables to select material...
Larbi, Asamoah
,
Ladipo, D.O.
,
Adekunle, I.O.
,
Smith, Jimmy W.
,
Jabbar, M.A.
,
[Multipurpose tree selection for silvopastoral systems on acid Ultisols. The effect of grass competition on early growth of tree and shrub species]
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Multipurpose tree selection for silvopastoral systems on acid Ultisols. The effect of grass competition on early growth of tree and shrub species
Hurtado V., Miguel A.
,
Sieverding, Ewald
,
[Las micorrizas, solución para la producción de plántulas forestales]
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Las micorrizas, solución para la producción de plántulas forestales
Schultze-Kraft, Rainer
,
Peters, Michael
,
Vivas, Nelson
,
Parra, F
,
Franco, LH
,
[Desmodium velutinum: a high-quality shrub legume for acid soils in the tropics]
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Desmodium velutinum: a high-quality shrub legume for acid soils in the tropics
As cassava is grown mostly by small resource-limited farmers throughout the tropics on low-fertility soils with little fertilization and, due to the large potassium (K) export in harvested roots, genotypes that tolerate low-K soils and respond to K fertilization are warranted. The objective of th...
El-Sharkawy, Mabrouk A.
,
Cadavid López, Luis Fernando
,
[Genetic variation within cassava germplasm in response to potassium]
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Genetic variation within cassava germplasm in response to potassium
Breeding programs for acid-soil tolerance are desirable as a relatively inexpensive and permanent way for increasing maize (Zea mays L.) yield on these soils. Our objective was to compare the genetic effects controlling the expression of maize traits in acid and non-acid soils. Seven related and ...
Pérez Velásquez, Juan Carlos
,
Souza Junior, C.L. de
,
Narro Leon, LA
,
Pandey, S.
,
León, C. de
,
[Genetics effects for maize traits in acid and non-acid soils]
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Genetics effects for maize traits in acid and non-acid soils
Aluminum (Al) toxicity is the principal abiotic constraint in acid soils of the tropics. Common bean, meanwhile, is for the most part
very sensitive to this stress although certain genotypes within the species show some level of resistance, justifying screening of
germplasm from both the Andean a...
Blair, Matthew W.
,
López Marin, H.D.
,
Rao, Idupulapati M.
,
[Identification of aluminum resistant Andean common bean (Phaseolus vulgaris L.) genotypes]
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Identification of aluminum resistant Andean common bean (Phaseolus vulgaris L.) genotypes
Six Rhizobium leguminosarum bv. phaseoli strains (Ciat 151, Ciat 895, Ciat 899, CE3, H2C, Kim5s) were tested for nodule occupancy in different bean cultivars at two field sites (one fertile, one acid tropical soil) and in the greenhouse. The effects of several environmental factors such as low pH...
Wolff, AB
,
Streit, W
,
Kipe-Nolt, Judith A.
,
Vargas, H.
,
Werner, D
,
[Competitiveness of Rhizobium leguminosarum bv. phaseoli strains in relation to environmental stress and plant defense mechanisms]
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Competitiveness of Rhizobium leguminosarum bv. phaseoli strains in relation to environmental stress and plant defense mechanisms
Tiemann, Tassilo T.
,
Franco, LH
,
Peters, Michael
,
Frossard, Emmanuel
,
Kreuzer, M.
,
Lascano, Carlos E.
,
Hess, HD
,
[Effect of season, soil type and fertilizer on the biomass production and chemical composition of five tropical shrub legumes with forage potential]
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Effect of season, soil type and fertilizer on the biomass production and chemical composition of five tropical shrub legumes with forage potential
Aluminum is usually regarded as the determining factor for plant growth in acid soils and nutrient deficiencies are often additional growth-limiting factors in tropical acid soils. Taking into account the potential interactions between Al toxicity and nutrient deficiencies, the present study inve...
Akhter, A
,
Khan, S.H.
,
Hiroaki, E
,
Tawaraya, K
,
Rao, Idupulapati M.
,
Wenzl, Peter
,
Ishikawa, S.
,
Wagatsuma, Tadao
,
[Greater contribution of low-nutrient tolerance to sorghum and maize growth under combined stress conditions with high aluminum and low nutrients in solution culture simulating the nutrient status of tropical acid soils]
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Greater contribution of low-nutrient tolerance to sorghum and maize growth under combined stress conditions with high aluminum and low nutrients in solution culture simulating the nutrient status of tropical acid soils
Larbi, Asamoah
,
Jabbar, M.A.
,
Orok, E.J.
,
Idiong, N.B.
,
Cobbina, J.
,
[Alchornea cordifolia, a promising indigenous browse species adapted to acid soils in southeastern Nigeria for integrated crop-livestock agroforestry production systems]
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Alchornea cordifolia, a promising indigenous browse species adapted to acid soils in southeastern Nigeria for integrated crop-livestock agroforestry production systems