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The present study aimed to evaluate the initial growth of Passiflora edulis plants under water deficit and inundation. The work was carried out in a greenhouse covered with transparent plastic in pots with a capacity of five liters and filled with 5 kg of substrate composed of oxisol, sand and cattle manure in the proportion of 3:1:1, respectively. The experimental design used was completely randomized, with seven treatments and five repetitions; 30 days after emergence, the plants were irrigated with water equivalent to 25%, 50%, 75%, 100%, 125%, 150% and 175% of the pot capacity and the analyzes were performed on the 52nd day. The P. edulis plants under limitation and excess water showed high stomatal sensitivity to reduce the water. In addition, under water deficit, the plants showed bigger root growth to maximize water absorption from the soil, but in both stresses the plants demonstrated reduced vegetative growth, that implies retarded establishment, thus, demonstrating an average susceptibility to water deficit and inundation.

O sistema integração lavoura – floresta vem sendo considerado inovador com alto potencial na recuperação de áreas degradadas. Porém seu impacto na qualidade do solo necessita de maiores estudos tornando imprescindível estabelecer indicadores adequados para detecção de mudanças na qualidade do solo. O presente trabalho teve por objetivo apresentar variáveis microbiológicas como indicadoras de qualidade no sistema agroflorestal. O experimento foi realizado na fazenda experimental da Universidade Estadual de Goiás, Câmpus Ipameri. O delineamento experimental foi inteiramente casualizado com quatro tratamentos e quatro repetições, sendo estas: área com sistema agroflorestal (SAF) que possui renques do híbrido de Eucalyptus grandis “GG100” dispostos em fileiras duplas (3 m x 2 m x 17 m), com 65 meses de idade cultivada com soja sob plantio direto, área de mata nativa (MN), onde é estabelecida uma vegetaçã

The use of synthetic dyes began in 1865 with the discoveries of researcher William Henry Perkin. Its production and use only grew due to the high demand of several industrial sectors, mainly textiles. At the same time, concerns about environmental problems arose due to the disposal of wastewater with dyes, being the textile industry’s effluents the most polluting in the world. According to their structure, dyes can be more or less harmful, whereby azo dyes are the most worrisome from an environmental point of view. Problems, such as carcinogenicity, mutagenicity, and genotoxicity, are related to dyes, as well as contamination of water, and soil, and damages to agricultural plantations. Some of the methods used in the treatment of textile industrial effluents are membrane filtration, coagulation, chemical oxidation, biodegradation, photocatalytic degradation, phytoremediation, and enzymatic remediation. Enzyme remediation is considered an efficient, ecological, and innovative technique, through which enzymes can be used in free or immobilized form. The main enzymes involved in the degradation of azo dyes are azoreductases, laccases, and peroxidases. In some cases, harmful by-products are formed during the reactions and require proper management. Thus, this chapter addresses the main aspects of enzymatic bioremediation of dyes present in effluents from the textile industry.

The use of soil remineralizers with efficient microorganisms (EM) can represent an effective and sustainable alternative to improve the growth, development, and yield of cultivated plants. Thus, the present study aimed to evaluate the effect of different doses of EM, in the presence or absence of rock dust (RD), on the development of iceberg lettuce, cultivar Lucy Brown. The design used was completely randomized, arranged in a 2 x 5 factorial scheme, with four replications. The treatments consisted of the presence and absence of RD in the substrate composition, combined with five commercial product doses based on EM (0, 2, 4, 6, and 8 L ha-1). At 30 days after transplanting, root and stem length, head circumference, the number of leaves, stem diameter, leaf area, fresh matter of root, stem, leaf, and shoot, and dry matter of root, stem, leaf, and shoot were evaluated. There was an interaction between the factors for most variables of economic importance. The dose of 4.5 L ha-1 of the product based on EM, combined with PR, implied the best performance of iceberg lettuce under the studied cultivation conditions.