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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, AKhan, S.H.Hiroaki, ETawaraya, KRao, Idupulapati M.Wenzl, PeterIshikawa, 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]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

Dry matter (DM) production, crude protein, phosphorus fibre contents and goat preference for eight indigenous browse species, Alchornea cordifolia, Diallum guineense, Ficus capensis, Baphia nitida, Manniophytum fulvum, Homalium aylmeri, Glyphaea brevis and Rauwolifia vomitoria, and for two exotic...


Larbi, AsamoahJabbar, 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]Alchornea cordifolia, a promising indigenous browse species adapted to acid soils in southeastern Nigeria for integrated crop-livestock agroforestry production systems
Rivera, M.Amézquita Collazos, EdgarBernal Riobo, Jaime HumbertoRao, Idupulapati M.[Las sabanas de los Llanos Orientales de Colombia: caracterización biofísica e importancia para la producción agropecuaria]Las sabanas de los Llanos Orientales de Colombia: caracterización biofísica e importancia para la producción agropecuaria
Amézquita Collazos, Edgar[Propiedades físicas de los suelos de los Llanos Orientales y sus requerimientos de labranza]Propiedades físicas de los suelos de los Llanos Orientales y sus requerimientos de labranza

Thirty-four Stylosanthes scabra, 20 S. guianensis and 66 S. hamata accessions were compared for biomass production on an acid soil in a medium-altitude subhumid environment in southern Ethiopia. Accessions S. scabra (ILCA 12555, 11625, 11599 and 11608), S. guianensis (ILCA 11737 and 11776) and S....


Larbi, AsamoahHanson, JeanOchang, J.[Stylosanthes accessions for medium-altitude acid soils]Stylosanthes accessions for medium-altitude acid soils

Twenty-three accessions of Centrosema pubescens selected for good performance on an infertile, acid soil were tested along with 2 control lines each of C. pubescens and C. acutifolium at 18 locations in tropical America and one location in tropical China. The sites represent 3 major agroecosystem...


Keller-Grein, GerhardSchultze-Kraft, RainerFranco, LHRamírez, G.[Multilocational agronomic evaluation of selected Centrosema pubescens germplasm on acid soils]Multilocational agronomic evaluation of selected Centrosema pubescens germplasm on acid soils

Common bean (Phaseolus vulgaris L.) proved to be very sensitive of low pH (4.3), with large genotypic differences in proton sensitivity. Therefore, proton toxicity did not allow the screening of common bean genotypes for aluminium (Al) resistance using the established protocol for maize (0.5 mM C...


Rangel Becerra, AFMobin, MRao, Idupulapati M.Horst, Walter J.[Proton toxicity interferes with the screening of common bean (Phaseolus vulgaris L.) genotypes for aluminium resistance in nutrient solution]Proton toxicity interferes with the screening of common bean (Phaseolus vulgaris L.) genotypes for aluminium resistance in nutrient solution

Aluminum (Al) toxicity is a major limiting factor of crop production in acid soils, which are found mostly in developing countries of the tropics and sub-tropics. Common bean (Phaseolus vulgaris L.) is particularly sensitive to Al toxicity; and development of genotypes with better root growth in ...


López Marin, H.D.Rao, Idupulapati M.Blair, Matthew W.[Quantitative trait loci for root morphology traits under aluminum stress in common bean (Phaseolus vulgaris L.)]Quantitative trait loci for root morphology traits under aluminum stress in common bean (Phaseolus vulgaris L.)

Sesbania sesban and S. goetzei accessions were screened on Vertisols at PH 6.8 and acid clay soils (Nitosols) with and without application of phosphours (60 kg P/ha). Both species were generally well adapted to the Vertisols and grew to an overall mean height of 249 cm 14 months after transplanti...


Siaw, D.E.K.A.Berhe, KahsayTothill, J.C.[Screening of two Sesbania species for fodder potential and response to phosphorus application on an acid soil in Ethiopia]Screening of two Sesbania species for fodder potential and response to phosphorus application on an acid soil in Ethiopia

Aluminium (Al) toxicity limits common bean productivity in acid soil regions of the tropics. To improve Al resistance of common bean, Al-sensitive Phaseolus vulgaris (SER16) was crossed to Al-resistant P. coccineus (G35346-3Q) to create 94 F5:6 recombinant inbred lines (RILs) of the pedigree SER1...


Butare, LouisRao, Idupulapati M.Lepoivre, PhilippeCajiao V., César HernandoPolanía Perdomo, José A.Cuasquer, Juan B.Beebe, Stephen E.[Phenotypic evaluation of interspecific recombinant inbred lines (RILs) of Phaseolus species for aluminium resistance and shoot and root growth response to aluminium–toxic acid soil]Phenotypic evaluation of interspecific recombinant inbred lines (RILs) of Phaseolus species for aluminium resistance and shoot and root growth response to aluminium–toxic acid soil

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