This study evaluated the contributions of Styrax camporum seed morphology (size of seeds, presence or absence of endocarp attached to the seed), different substrates (filter paper, vermiculite, sand and the soils of cerrado s. str., cerradão and a riparian forest), different water potentials (0, -0.1, -0.2, -0.3, -0.4 and -0.5 MPa), light and temperature to seed germination. Seed size did not a...

The production of inoculum is one of the hindrances in the large scale application of arbuscular mycorrhizal fungi (AMF). The objective of this work was to evaluate the effect of nutrient solutions with or without TrisHCl buffer, on sporulation of AMF. The experiment was carried out in a greenhouse, using a substrate with sand and vermiculite (1:1 v/v). Fifty spores of Gigaspora margarita, Scut...

Peanut haulms compost as a carrier of three Trichoderma species (T. harzianum, T. hamatum and T. koningii) exhibited different morphological and chemical characteristics and its ability to control Fusarium wilt of cumin plants caused by Fusarium oxysporum compared with peat/vermiculite. The peanut haulms carrier was able to increase the population size, numbers, viability, survival, microbial b...

The community members of Libby, MT, have experienced significant asbestos exposure and developed numerous asbestos-related diseases including fibrosis and lung cancer due to an asbestos-contaminated vermiculite mine near the community. The form of asbestos in the contaminated vermiculite has been characterized in the amphibole family of fibers. However, the pathogenic effects of these fibers ha...

Biofilm populations of Nitrosomonas europaea were formed in continuous flow sand columns supplied with defined inorganic medium containing 50 pg NH:-N ml-‘. Steady-state nitrite concentrations in effluent from the columns decreased as the pH of the inflowing medium was reduced but ammonia oxidation occurred at a pH value of 6, even though the pH minimum for growth of the organism in liquid batc...

Increasing the thermal insulation of building components to reduce energy loss buildings has received significant attention. Owing its porous structure, using expanded vermiculite as an alternative natural river sand in development materials would result improvement performance buildings. This study investigates properties fly ash (FA)-based geopolymer mortars prepared with vermiculite. The mai...

The substrates composition can take place from different raw materials, being an influencer of the water and nutrient retention capacity, important dynamic in management cultivation containers due to possibility leaching. It was aimed quantify Potassium adsorption with proportions vermiculite peat, addition determining isotherms which would best fit observed data, for contact periods one seven ...