Organomineral Fertilizer as Source of P and K for Sugarcane.

Sugarcane (Saccharum spp) crop has high social, economic and environmental importance for several regions throughout the world. However, the increasing demand for efficiency and optimization of agricultural resources generates uncertainties regarding high mineral fertilizer consumption. Thereby, organomineral fertilizers are to reduce the conventional sources consumption.

Kinetin establish the volatile chemical profile after rhizome dormancy is released in (Christm.) Roscoe.

The aim of this work was to provide information about kinetin effects on chemical volatile profile of (Christm.) Roscoe after several days of plant dormancy release. Rhizomes of were immersed in four kinetin concentrations (0, 50, 100, 150 mg ml, n = 12 by each concentration) for 30 min.

Metabolic Regulation and Development of Energy Cane Setts upon Auxin Stimulus.

Energy cane is a bioenergy crop with an outstanding ability to bud sprouting and increasing yield in ratoon cycles even in marginal lands. Bud fate control is key to biomass production and crop profits due to vegetative propagation and tiller dependency, as well as phenotype plasticity to withstand harsh environmental conditions. During the establishment stage (plant cane cycle), energy cane has a tendency for low root:shoot ratio, which might hamper the ability to cope with stress.

Prediction of soil stresses and compaction due to agricultural machines in sugarcane cultivation systems with and without crop rotation.

One strategy to eliminate or minimize occurrence of soil compaction in sugarcane production is through modelling, which can identify the risk associated with different operations and machine equipment. Soil damage resulting from the passage of machines can be than reduced through preventive measures which focus on the soil-machine relationship. In the present study, the magnitudes and distribution of the stresses produced in the soil through the loads carried by the axles of the machines used in sugarcane cultivation systems were analysed and modelled.

Strategies to mitigate the nitrous oxide emissions from nitrogen fertilizer applied with organic fertilizers in sugarcane.

Vinasse is a major byproduct of the sugarcane biofuel industry, recycled in the fields. However, there is evidence that the application of vinasse with mineral nitrogen (N) fertilizers in sugarcane enhances the emission of greenhouse gases (GHGs). Therefore, strategies are needed to decrease the environmental impacts caused by both inputs.

Resilience of the resident soil microbiome to organic and inorganic amendment disturbances and to temporary bacterial invasion.

Background: Vinasse, a by-product of sugarcane ethanol production, is recycled by sugarcane plantations as a fertilizer due to its rich nutrient content. However, the impacts of the chemical and microbial composition of vinasse on soil microbiome dynamics are unknown. Here, we evaluate the recovery of the native soil microbiome after multiple disturbances caused by the application of organic vinasse residue, inorganic nitrogen, or a combination of both during the sugarcane crop-growing season (389 days).

Effect of and strains on sorghum growth is plant genotype dependent.

Sorghum is a multipurpose crop that is cultivated worldwide. Plant growth-promoting bacteria (PGPB) have important roles in enhancing sorghum biomass and nutrient uptake and suppressing plant pathogens. The aim of this research was to test the effects of the endophytic bacterial species strain IAC/BECa 99, strain IAC/BECa 128, strain IAC/BECa 141, strain IAC/BECa 135 and strain IAC/BECa 152 on the growth and root architecture of four sorghum cultivars (SRN-39, Shanqui-Red, BRS330, BRS509), with different uses and strigolactone profiles.

Recycling organic residues in agriculture impacts soil-borne microbial community structure, function and NO emissions.

Recycling residues is a sustainable alternative to improve soil structure and increase the stock of nutrients. However, information about the magnitude and duration of disturbances caused by crop and industrial wastes on soil microbial community structure and function is still scarce. The objective of this study was to investigate how added residues from industry and crops together with nitrogen (N) fertiliser affect the microbial community structure and function, and nitrous oxide (NO) emissions.

Improved Genetic Transformation of Sugarcane (Saccharum spp.) Embryogenic Callus Mediated by Agrobacterium tumefaciens.

Sugarcane (Saccharum spp.) is a monocotyledonous semi-perennial C4 grass of the Poaceae family. Its capacity to accumulate high content of sucrose and biomass makes it one of the most important crops for sugar and biofuel production.

Lettuce and rhizosphere microbiome responses to growth promoting Pseudomonas species under field conditions.

Plant growth promoting rhizobacteria are well described and recommended for several crops worldwide. However, one of the most common problems in research into them is the difficulty in obtaining reproducible results. Furthermore, few studies have evaluated plant growth promotion and soil microbial community composition resulting from bacterial inoculation under field conditions.

Influence of coffee genotype on bioactive compounds and the in vitro capacity to scavenge reactive oxygen and nitrogen species.

The influence of green coffee genotype on the bioactive compounds and the in vitro antioxidant capacity against the principal reactive oxygen (ROO(•), H2O2, HO(•), and HOCl) and nitrogen (NO(•) and ONOO(-)) species of biological relevance was investigated. This is the first report on the capacity of green coffee to scavenge H2O2, HOCl, and NO(•). Variations in the contents of total chlorogenic acids (22.

Fast method for capsaicinoids analysis from Capsicum chinense fruits.

Chili peppers are widely utilized in the world as savory food additives due the pungency induced by the capsaicinoids. Also, these compounds have functional properties as antimutagenic, antitumoral, antioxidant and analgesic. These characteristics increase the interest in this compound class, hence the capsaicinoid analysis must be reproducible and accurate.