Search Results - "Rao, IM"
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Phosphorus Transformations in an Oxisol under contrasting land-use systems: The role of the soil microbial biomass
Published in Plant and soil (01-12-2001)“…It is generally assumed that phosphorus (P) availability for plant growth on highly weathered and P-deficient tropical soils may depend more on biologically…”
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Journal Article Conference Proceeding -
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Low phosphorus tolerance mechanisms: Phosphorus recycling and photosynthate partitioning in the tropical forage grass, Brachiaria hybrid cultivar mulato compared with rice
Published in Plant and cell physiology (01-04-2004)“…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…”
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The High Level of Aluminum Resistance in Signalgrass Is Not Associated with Known Mechanisms of External Aluminum Detoxification in Root Apices
Published in Plant physiology (Bethesda) (01-03-2001)“…Al resistance of signalgrass (Brachiaria decumbens Stapf cv Basilisk), a widely sown tropical forage grass, is outstanding compared with the closely related…”
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Carbon storage by introduced deep-rooted grasses in the South American savannas
Published in Nature (London) (15-09-1994)“…A study analyzed the carbon stored by pastures based on deep-rooted grasses that have been introduced in the South American savannas. Evidence shows that the…”
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Fallow management for soil fertility recovery in tropical Andean agroecosystems in Colombia
Published in Agriculture, ecosystems & environment (01-10-2005)“…Andean hillsides dominate the landscape of a considerable proportion of Cauca Department in Colombia. The typical cropping cycle in the region includes…”
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Secretion of phytase from the roots of several plant species under phosphorus-deficient conditions
Published in Plant and soil (01-08-1997)“…Phosphorus (P) deficiency increased the secretion of phytases from roots of various plant species. The secretory phytases were collected with a dialysis…”
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Proton toxicity interferes with the screening of common bean (Phaseolus vulgaris L.) genotypes for aluminium resistance in nutrient solution
Published in Journal of plant nutrition and soil science (01-08-2005)“…Common bean (Phaseolus vulgaris L.) proved to be very sensitive of low pH (4.3), with large genotypic differences in proton sensitivity. Therefore, proton…”
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Changes in soil organic matter and phosphorus fractions under planted fallows and a crop rotation system on a Colombian volcanic-ash soil
Published in Plant and soil (01-04-2001)“…Planted tree or shrub fallows can help increase the fertility of degraded tropical soils. We investigated the effects of planted fallows of Indigofera (IND),…”
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greenhouse method to screen Brachiariagrass genotypes for aluminum resistance and root vigor
Published in Crop science (01-03-2006)“…Brachiaria species are widely sown on the infertile and Al-toxic soils of neotropical savannas. Breeding programs seek to combine edaphic adaptation with other…”
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Simulating infertile acid soils with nutrient solutions: The effects on Brachiaria species
Published in Soil Science Society of America journal (01-09-2003)“…Aluminum toxicity limits plant growth in acid soils. Because of their advanced state of weathering, acid soils of the tropics also tend to be deficient in…”
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Use of deep-rooted tropical pastures to build-up an arable layer through improved soil properties of an Oxisol in the Eastern Plains (Llanos Orientales) of Colombia
Published in Agriculture, ecosystems & environment (01-07-2004)“…It is widely believed that tropical soils (mainly Oxisols) have excellent physical characteristics such as high infiltration rates, high permeability of water,…”
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Phosphorus acquisition and cycling in crop and pasture systems in low fertility tropical soils
Published in Plant and soil (01-10-1997)“…Soil-plant processes which enhance P acquisition and cycling in low-P Oxisols were investigated in a crop rotations and ley pasture systems experiment on the…”
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Journal Article Conference Proceeding -
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Aluminum stress stimulates the accumulation of organic acids in root apices of Brachiaria species
Published in Journal of plant nutrition and soil science (01-10-2002)“…Aluminum‐resistant Brachiaria decumbens Stapf cv. Basilisk (signalgrass) and closely related, but less resistant Brachiaria ruziziensis Germain & Evrard cv…”
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Influence of phosphorus nutrition on growth and carbon partitioning in Glycine max
Published in Plant physiology (Bethesda) (01-01-1989)“…Soybean plants (Glycine max [L.] Merr var Amsoy 71) were grown in growth chambers with high-phosphorus (high-P) and low-phosphorus (low-P) culture solutions…”
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Role of phosphoenolpyruvate carboxylase in the adaptation of a tropical forage grass to low-phosphorus acid soils
Published in Journal of plant nutrition (2006)“…As Brachiaria hybrid cv. 'Mulato' has adapted to acid soils with extremely low phosphorus (P) contents, its low-P-tolerance mechanisms were investigated and…”
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Methylene Blue Stainability of Root-Tip Protoplasts as an Indicator of Aluminum Tolerance in a Wide Range of Plant Species, Cultivars and Lines
Published in Soil science and plant nutrition (Tokyo) (01-12-2005)“…We previously developed a new simple technique of methylene blue (MB) staining for the discrimination of aluminum (Al)-tolerant protoplasts from 4 plant…”
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global assessment using PCR techniques of mycorrhizal fungal populations colonising Tithonia diversifolia
Published in Mycorrhiza (01-04-2004)“…Tithonia diversifolia (Mexican sunflower) is a shrub commonly used as a green manure crop in Central and South America, Asia and Africa as it accumulates high…”
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Selection and breeding for acid-soil tolerance in crops
Published in Bioscience (01-07-1993)“…Tropical soil acidity directly affect the agricultural productivity of affected areas. Although lime can be applied to make acidic soils productive, it is not…”
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Disc harrowing intensity and its impact on soil properties and plant growth of agropastoral systems in the Llanos of Colombia
Published in Soil & tillage research (01-11-2001)“…Oxisols such as those of the Colombian Eastern Plains (Llanos) are susceptible to physical, chemical and biological degradation once brought into cultivation,…”
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