Aluminum‐resistant Brachiaria decumbens Stapf cv. Basilisk (signalgrass) and closely related, but less resistant Brachiaria ruziziensis Germain & Evrard cv. Common (ruzigrass) both accumulated high concentrations of aluminum (Al) in roots. Approximately two thirds of the total Al was complexed by...
Wenzl, Peter
,
Chavez, Alba L.
,
Patiño, Gloria M.
,
Mayer, Jorge Edgard
,
Rao, Idupulapati M.
,
[Aluminum stress stimulates the accumulation of organic acids in root apices of Brachiaria species]
,
Aluminum stress stimulates the accumulation of organic acids in root apices of Brachiaria species
Se evaluaron en invernadero en un suelo de Matazul, Meta, Colombia durante 6 semanas, 2 genotipos de Brachiaria (uno mejor adaptado a bajo P, B. decumbens y otro menos adaptado, B. ruziziensis) y 8 progenies del cruzamiento entre ellos ( mejores adaptados: H-7, H-40, H-28, H-58; menos adaptados: ...
Mejia Kerguelen, S
,
Rao, Idupulapati M.
,
Ramírez, H.
,
Louw-Gaume, A
,
Gaume, A
,
Frossard, Emmanuel
,
[Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio = Morphologic and physiological attributes of Brachiaria genotypes in soil with low available phosphorus and high aluminum saturation]
,
Atributos morfológicos y fisiológicos de genotipos de Brachiaria en un suelo con bajo fósforo disponible y alta saturación de aluminio = Morphologic and physiological attributes of Brachiaria genotypes in soil with low available phosphorus and high aluminum saturation
Phosphorus (P) deficiency increased the secretion of phytases from roots of various plant species. The secretory phytases were collected with a dialysis membrane tube for 24 hours from roots of sixteen plant species grown with low or adequate supply of P in nutrient solutions. The activity of not...
Li, M
,
Osaki, M
,
Rao, Idupulapati M.
,
Tadano, T
,
[Secretion of phytase from the roots of several plant species under phosphorus-deficient conditions]
,
Secretion of phytase from the roots of several plant species under phosphorus-deficient conditions
The phosphorus (P) content of whole roots and root apices has been reported to increase under aluminum (Al) stress, particularly in Al-sensitive plant varieties. We investigated the impact of Al toxicity on the P content of root apices of two tropical forage cultivars of the Brachiaria genus, gro...
Wenzl, Peter
,
Mayer, Jorge Edgard
,
Rao, Idupulapati M.
,
[Aluminum stress inhibits accumulation of phosphorus in root apices of aluminum-sensitive but not aluminum-resistant brachiaria cultivar]
,
Aluminum stress inhibits accumulation of phosphorus in root apices of aluminum-sensitive but not aluminum-resistant brachiaria cultivar
Wenzl, Peter
,
Chávez, Alba L.
,
Rao, Idupulapati M.
,
Mayer, Jorge Edgard
,
Nair, Muraleedharan G.
,
[Roots of nutrient-deprived Brachiaria species accumulate 1,3-di-O-trans-feruloylquinic acid]
,
Roots of nutrient-deprived Brachiaria species accumulate 1,3-di-O-trans-feruloylquinic acid
Herrera, P.
,
Ayarza, Miguel Angel
,
Rao, Idupulapati M.
,
Amézquita Collazos, Edgar
,
[Efecto de las pasturas mejoradas y de su rotación con cultivos de arroz, sobre algunas de las propiedades físicas de un suelo de la altillanura colombiana]
,
Efecto de las pasturas mejoradas y de su rotación con cultivos de arroz, sobre algunas de las propiedades físicas de un suelo de la altillanura colombiana
Soil carbon distribution with depth, stable carbon isotope ratios in soil organic matter and their changes as a consequence of the presence of legume were studied in three 12-year-old tropical pastures (grass alone Brachiaria decumbens (C4), legume alone Pueraria phaseoloides (C3) and grass + l...
Rao, Idupulapati M.
,
Ayarza, Miguel Angel
,
Thomas, Richard J.
,
[The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures]
,
The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures
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, Peter
,
Patino, GM
,
Chavez, Alba L.
,
Mayer, Jorge Edgard
,
Rao, 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
En un Haplustox de los Llanos Orientales de Colombia se evaluaron durante 41 meses 6 genotipos de Brachiaria con resistencia variable a niveles altos de Al+3 en dos niveles de nutrientes. Los genotipos con resistencia media y alta mantuvieron altas producciones de biomasa aérea en los primeros me...
Ricaurte Oyola, José Jaumer
,
Rao, Idupulapati M.
,
Menjivar Flores, JC
,
[Estrategias de enraizamiento de genotipos de Brachiaria en suelos ácidos y de baja fertilidad en Colmbia = Rooting strategies of Brachiaria genotypes in acid and low fertility soils of Colombia]
,
Estrategias de enraizamiento de genotipos de Brachiaria en suelos ácidos y de baja fertilidad en Colmbia = Rooting strategies of Brachiaria genotypes in acid and low fertility soils of Colombia