http://repositorio.ufgd.edu.br/jspui/handle/prefix/55 Sat, 05 Sep 2026 00:27:51 GMT 2026-09-05T00:27:51Z http://repositorio.ufgd.edu.br/jspui/handle/prefix/7010 Título: Decomposição de serapilheira e biomassa microbiana do solo em ecossistema de referência como subsídio a restauração ecológica Autor(es): Oliveira, Paula Luiza Antunes de Primeiro Orientador: Pereira, Zefa Valdivina Abstract: The serraplilheira has been widely used as an environmental bioindicator, since it plays a fundamental role in the nutrient packing along with the microbial biomass of the soil, which is a direct agent of the soil, both of which mediate soil nutrient availability. sustainability of ecosystems. The objective was to evaluate the soil quality of three topographic gradients in the Serra da Bodoquena National Park, through litter decomposition velocity and soil microbiological attributes. The experiment consisted in collecting the litter and soil in three topographic gradients in the southern portion of the Serra da Bodoquena National Park for litter bag decomposition analysis and carbon analysis of biomass and microbial activity, metabolic quotient and microbial quotient and also chemical analysis of soil nutrients. However, there was only a statistically significant difference in relation to the top, which had the lowest decomposition rate, and in the chemical analysis of soil nutrients the pH was between 7.0 and 8 , 0 showing a basal soil with base saturation (V%) between 93 and 95 demonstrating that the soil is fertile, and in the microbial biomass the slope obtained the best results in the carbon and microbial activity and the metabolic and microbial kernels were better at the top . Thus, the nutritional and organic quality of litter influenced the activity of microbial biomass. Editor: Universidade Federal da Grande Dourados Tipo: Dissertação Mon, 17 Dec 2018 00:00:00 GMT http://repositorio.ufgd.edu.br/jspui/handle/prefix/7010 2018-12-17T00:00:00Z http://repositorio.ufgd.edu.br/jspui/handle/prefix/7009 Título: Semeadura direta de espécies florestais na implantação de sistemas agroflorestais: alternativa para a restauração ecológica de área de preservação permanente Autor(es): Lobtchenko, Julio Cesar Pereira Primeiro Orientador: Padovan, Milton Parron Abstract: Agroforestry systems (SAFs) comprise forms of land use and plant exploitation, in which tree and shrub species are combined with agricultural crops and / or animal husbandry, simultaneously or in time, interacting economically and ecologically. It represents a great potential for local and regional development, since in addition to the production of diversified environmental services, it increases food production and income generation for rural producers. The use of Biodiverse Agroforestry Systems has, in recent decades, been widely used as an alternative for ecological restoration, being included in Brazilian legislation to restore areas of preservation and legal reserve of small properties or family rural ownership. SAFS are implemented most of the time by planting seedlings and little is known about their implementation through direct seeding. Direct seeding in the Agroforestry System increases the diversity of native species, and in fragmented landscapes, they contribute to the increase in the structural and functional connectivity of ecosystems. However, due to the high diversity of existing forest species, it is still necessary to carry out studies on the physiological potential of the seeds and their initial growth, and establishment, fundamental factors when these species are used in direct sowing. Thus, this work aimed to evaluate the emergence and initial development of forest species sown directly intercropped with different agricultural crops and fertilizers and measure the cost of the applied technique. The experiment was carried out from November 2018 to August 2019 at the Experimental Farm of Agrarian Sciences of the Federal University of Grande Dourados located near BR 162 Dourados - Ponta Porã, Km 20, between the coordinates O 55º 00 '09' '/ S 22º 15' 03 '' and O 54º 59 '02' '/ S 22º 13' 18 ''. Seeds of 23 species occurring approximately the site were planted. The treatments were the interaction of: 2 seed densities (5 and 10), 2 fertilizers (Cattle manure and Chicken litter) and 2 agricultural crops (Watermelon and Pumpkin). The seeds were arranged in sowing lines (linear furrow) 2m long, 10 cm wide and 5 cm deep, spaced 2m apart and 2m between the plots, each treatment had three replicates, each repetition with two lines. The use of direct seeding to compose biodiverse agroforestry arrangements has shown to be quite promising, since agricultural crops did not harm the emergence and establishment of the species used. The best density to compose these arrangements is approximately 4000 seeds per species per hectare, since lower densities decrease the competition for light and decrease the costs of implantation. For the studied species and during the observation period, fertilizers had little influence on the development of the species. The consortium of agricultural cultivars under restoration planting is a profitable alternative to reduce restoration costs, and can be fully amortized in a second cycle of cultivars. Editor: Universidade Federal da Grande Dourados Tipo: Dissertação Tue, 11 Feb 2020 00:00:00 GMT http://repositorio.ufgd.edu.br/jspui/handle/prefix/7009 2020-02-11T00:00:00Z http://repositorio.ufgd.edu.br/jspui/handle/prefix/6888 Título: Variação sazonal do óleo essencial, características microscópicas e potencial alelopatico de Momordica charantia L. (Cucurbitaceae) Autor(es): Guilherme, Meiryelli de Oliveira Primeiro Orientador: Formagio , Anelise Samara Nazari Abstract: Brazil harbors the greatest plant biodiversity on the planet, which highlights the importance of studies focused on the chemical, ecological, and functional characterization of plant species with biological potential. In this context, Momordica charantia L. (Cucurbitaceae), popularly known as bitter melon, stands out due to its widespread use in traditional medicine and the presence of secondary metabolites with ecological and pharmacological relevance. The present study aimed to evaluate the seasonal variation of the essential oil and the microscopic characteristics of M. charantia, as well as to investigate the allelopathic potential of its essential oil and leaf extracts on the germination and initial growth of Crotalaria ochroleuca G. Don (Fabaceae).The first manuscript assessed the yield and chemical composition of the essential oil extracted from the aerial parts (leaves and stems) of M. charantia over 12 consecutive months. The essential oil was obtained by hydrodistillation and subsequently analyzed by gas chromatography coupled to mass spectrometry (GC-MS), in addition to microscopic and histochemical analyses of leaves and stems. The results revealed significant variations in essential oil yield and chemical composition, with March 2026 showing the highest yield (0.53%), followed by December 2025 (0.50%). These variations were mainly influenced by the plant’s phenological stage, with predominance of the compounds (Z)-3-hexenol and linalool.The second manuscript investigated the allelopathic effects of aqueous and methanolic extracts and the essential oil of M. charantia on the germination and early growth of C. ochroleuca. The results indicated no significant effect on germination; however, pronounced inhibitory effects were observed on root growth, particularly associated with the methanolic extract, demonstrating allelopathic potential dependent on extract type, concentration, and exposure time. Taken together, these findings expand the knowledge on the chemical variability of M. charantia and its role in ecological interactions, contributing to the understanding of its potential application in sustainable strategies, especially for the management of plants of agricultural interest. Editor: Universidade Federal da Grande Dourados Tipo: Dissertação Mon, 23 Feb 2026 00:00:00 GMT http://repositorio.ufgd.edu.br/jspui/handle/prefix/6888 2026-02-23T00:00:00Z http://repositorio.ufgd.edu.br/jspui/handle/prefix/6887 Título: Levantamento Florístico e Fitossociológico em Mata Ciliar Associada ao Rio Olho D’água, Jardim-MS Autor(es): Morais, Layra Carienne de Primeiro Orientador: Oliveira, Augusto Giaretta de Abstract: This study aimed to describe the species richness and diversity and analyze the phytosociological aspects of a stretch of riparian forest along the Olho D’água River, located in the Recanto Ecológico Rio da Prata Private Natural Heritage Reserve in the municipality of Jardim, MS. Ten plots of 15 x 20 m each were distributed along the riverbank. In each plot, all individuals with a diameter at breast height (DBH) ≥ 3.18 cm were sampled, totaling 394 individuals belonging to 25 families, 43 genera, and 50 species. The families Fabaceae, Euphorbiaceae, Lauraceae, Myrtaceae, and Rubiaceae stood out for their high number of species. Actinostemon concolor (Spreng.) Müll.Arg., Adelia membranifolia (Müll.Arg.) Chodat & Hassl., and Anadenanthera colubrina (Vell.) Brenan were the species with the highest importance value. The Shannon diversity index (H’) obtained was 2.38 nats/individual and the evenness (J’) was 0.597. The results obtained in this work are extremely important to support management and restoration projects in these formations. Editor: Universidade Federal da Grande Dourados Tipo: Dissertação Wed, 19 Nov 2025 00:00:00 GMT http://repositorio.ufgd.edu.br/jspui/handle/prefix/6887 2025-11-19T00:00:00Z