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Al resistance of signalgrass (Brachiaria decumbens Stapf cv Basilisk), a widely sown tropical forage grass, is outstanding compared with the closely related ruzigrass (Brachiaria ruziziensis Germain and Evrard cv Common) and Al-resistant genotypes of graminaceous crops such as wheat, triticale, a...


Wenzl, PeterPatino, GMChavez, Alba L.Mayer, Jorge EdgardRao, Idupulapati M.[The high level of aluminum resistance in signalgrass is not associated with known mechanism of external aluminum detoxification in root apices]The high level of aluminum resistance in signalgrass is not associated with known mechanism of external aluminum detoxification in root apices

Traditional breeding efforts are expected to be greatly enhanced through collaborative approaches incorporating functional, comparative and structural genomics. Potential benefits of combining genomic tools with traditional breeding have been a source of widespread interest and resulted in numero...


Ishitani, ManabuRao, Idupulapati M.Wenzl, PeterBeebe, Stephen E.Tohme, Joseph M.[Integration of genomics approach with traditional breeding towards improving abiotic stress adaptation: Drought and aluminum toxicity as case studies]Integration of genomics approach with traditional breeding towards improving abiotic stress adaptation: Drought and aluminum toxicity as case studies

The role of the intracellular distribution and binding state of aluminum (Al) in Al toxicity, using Al exchange and Al fractionation methodologies, were studied in two common bean (Phaseolus vulgaris L.) genotypes differing in Al resistance. These two genotypes are characterized by a similar init...


Rangel Becerra, AFRao, Idupulapati M.Horst, Walter J.[Intracellular distribution and binding state of aluminum in root apices of two common bean (Phaseolus vulgaris) genotypes in relation to Al toxicity]Intracellular distribution and binding state of aluminum in root apices of two common bean (Phaseolus vulgaris) genotypes in relation to Al toxicity
Gómez Carabali, ARao, Idupulapati M.Otero, TJ[Influence of fertilization, season, and forage species in presence of arbuscular mycorrhizae in a degraded andisoil of Colombia = Influencia de la fertilización, la época y la especie forajera en la presencia de micorriza arbuscular en un Andisol degradado de Colombia]Influence of fertilization, season, and forage species in presence of arbuscular mycorrhizae in a degraded andisoil of Colombia = Influencia de la fertilización, la época y la especie forajera en la presencia de micorriza arbuscular en un Andisol degradado de Colombia

The intense debate over agricultural biotechnology is at once fascinating, confusing and disappointing. It is complicated by issues of ethical, moral, socio-economic, political, philosophical and scientific import. Its vocal champions exaggerate their claims of biotechnology as saviour of the poo...


Kelemu, SegenetMahuku, George S.Fregene, Martin A.Pachico, Douglas H.Johnson, Nancy L.Calvert, Lee A.Rao, Idupulapati M.Buruchara, Robin A.Amede, TilahunKimani, P.M.Kirkby, Roger A.Kaaria, Susan K.Ampofo, James Kwasi O.[Harmonizing the agricultural biotechnology debate for the benefit of African farmers]Harmonizing the agricultural biotechnology debate for the benefit of African farmers

Brachiaria forage grasses are widely used for livestock production in the tropics. Signalgrass (Brachiaria decumbens cv. Basilisk, CIAT 606) is better adapted to low phosphorus (P) soils than ruzigrass (B. ruziziensis cv. Kennedy, CIAT 654), but the physiological basis of differences in low-P ada...


Louw-Gaume, ARao, Idupulapati M.Gaume, AFrossard, Emmanuel[A comparative study on plant growth and root plasticity responses of two Brachiaria forage grasses grown in nutrient solution at low and high phosphorus supply]A comparative study on plant growth and root plasticity responses of two Brachiaria forage grasses grown in nutrient solution at low and high phosphorus supply

The Brachiaria hybrid cv. Mulato is well adapted to low-fertility acid soils deficient in phosphorus (P). To study the grassy forage’s mechanisms for tolerating low P supply, we compared it with rice (Oryza sativa L. cv. Kitaake). We tested by using nutrient solution cultures, and quantified the ...


Nanamori, MShinano, TWasaki, JYamamura, TRao, Idupulapati M.Osaki, M[Low phosphorus tolerance mechanisms: Phosphorus recycling and photosynthate partitioning in the tropical forage grass, Brachiaria hybrid cultivar mulato compared with rice]Low phosphorus tolerance mechanisms: Phosphorus recycling and photosynthate partitioning in the tropical forage grass, Brachiaria hybrid cultivar mulato compared with rice

Aluminium (Al) toxicity and drought are the two major abiotic stress factors limiting common bean production in the tropics. Using hydroponics, the short-term effects of combined Al toxicity and drought stress on root growth and Al uptake into the root apex were investigated. In the presence of A...


Yang, ZEticha, DRao, Idupulapati M.Horst, Walter J.[Alteration of cell-wall porosity is involved in osmotic stress-induced enhancement of aluminium resistance in common bean (Phaseolus vulgaris L.)]Alteration of cell-wall porosity is involved in osmotic stress-induced enhancement of aluminium resistance in common bean (Phaseolus vulgaris L.)

Plant-growth-promoting (PGP) bacteria include a diverse group of soil bacteria thought to stimulate plant growth by various mechanisms. Brachiaria forage grasses, of African origin, are perennials that often grow under low-input conditions and are likely to harbour unique populations of PGP bacte...


Kelemu, SegenetFory Sánchez, Paola AndreaZuleta, CRicaurte, J.Rao, Idupulapati M.Lascano, Carlos E.[Detecting bacterial endophytes in tropical grasses of the Brachiaria genus and determining their role in improving plant growth]Detecting bacterial endophytes in tropical grasses of the Brachiaria genus and determining their role in improving plant growth
Humbert, FDouxchamps, SabineHoek, W. van derBenavídez, AMena Urbina, Martin A.Schmidt, ARao, Idupulapati M.Bernasconi, SFrossard, EmmanuelOberson, Astrid[Impact of Canavalia brasiliensis on nitrogen budgets in smallholder crop-livestock farms of the Nicaraguan hillsides]Impact of Canavalia brasiliensis on nitrogen budgets in smallholder crop-livestock farms of the Nicaraguan hillsides

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