A5059812628- Plant Pathogens and Fungal Diseases
- Essential Oils and Antimicrobial Activity
- Insect Pest Control Strategies
- Crop Yield and Soil Fertility
- Soil Management and Crop Yield
- Growth and nutrition in plants
- Agricultural and Food Sciences
- Plant tissue culture and regeneration
- Phytochemicals and Antioxidant Activities
- Banana Cultivation and Research
- Insect and Pesticide Research
- Morinda citrifolia extract uses
- Mycotoxins in Agriculture and Food
- Bee Products Chemical Analysis
- Biodiesel Production and Applications
- Genetics and Plant Breeding
- Medicinal Plant Research
- Allelopathy and phytotoxic interactions
- Enzyme Catalysis and Immobilization
- Phytochemistry and Biological Activities
- Cholinesterase and Neurodegenerative Diseases
- Lubricants and Their Additives
- Natural Antidiabetic Agents Studies
- Tannin, Tannase and Anticancer Activities
- Organic Food and Agriculture
Universidade Federal do Tocantins
2014-2025
Center for Effective Philanthropy
2021
Corymbia citriodora and Cymbopogon nardus essential oils samples were analyzed by GC GC-MS their qualitative quantitative compositions established. The main component of C. was citronellal, at 61.78% 36.6%, respectively. citronellal tested for fumigant antifungal activity against Pyricularia ( Magnaporthe ) grisea , Aspergillus spp., Colletotrichum musae . minimum inhibitory concentration (MIC) ranged from 100 to 200 ppm the 25 50 mg·mL −1 citronellal. contact assay using showed growth...
In this study, methanolic extracts of ten species medicinal plants collected at Gurupi, Tocantins state, Brazil, were subjected to assays neutralization ABTS and DPPH radicals, ferric reducing antioxidant power (FRAP), investigate their potential.The results revealed that the investigated exhibited strong activities.The Buchenavia tetraphylla, tomentosa, Lippia sidoides displayed highest activities, as well largest contents phenolic compounds flavonoids.Using Pearson's correlation...
Corn (Zea mays L.) productivity is often compromised by phytosanitary challenges, with fungal disease like Curvularia leaf spot being particularly significant. While synthetic fungicides are commonly used, there growing interest in exploring alternative compounds that effective against pathogens, ensure food safety, and have low toxicity to non-target organisms. In this study, we examined the biochemical changes corn plants treated Lippia sidoides essential oil its major compound, thymol....
Alternative sources of fuel have been a concern in the last few decades. The growth urbanization and industrialization will lead to exhaustion fossil fuels, attracting studies on alternative routes. main aim this study was produce biodiesel from waste cooking oil (WCO) by methyl transesterification using sodium hydroxide as catalyst. For this, physicochemical parameters were studied triplicate (density, acidity, saponification, viscosity, corrosiveness copper, visual appearance, cloud...
Siparuna guianensis Aublet.Thermal and spectroscopic analyses of essential oil extracted from Aublet, an aromatic plant belonging to medicinal ethnobotany family Siparunaceae, were carried out.The is known throughout the North Northeast Brazil by name negramina has wide application as a natural insect repellent.Thermogravimetric correlated with Arrhenius Equation provide kinetic parameters evaporation, including activation energy frequency factor.Differential scanning calorimetric analysis...
The use of plant-based products has been shown to efficiently inhibit fungi-mediated diseases in agricultural crops. Here, we extracted and evaluated the composition noni,
The objective of this study was to evaluate the transmissibility F. verticillioides, in corn seeds, when inoculated different phenological stages. plants were with pathogen at following stages: V7, V9, R1, R2, R4, and R6. experiments conducted pots, a completely randomized design, six replications. fungus infection rate seeds verified through health test (Blotter Test). significance contrast between stages two (rainy season dry season), productivity showed plant-seed transmission...
Because of the great diversity corn genotypes and effects sowing seasons nitrogenous fertilizers, in plant development, identification promising these conditions allows you to provide information determine best strategies be adopted future breeding programs. Thus, this study aimed effect genetic divergence among different levels nitrogen State Tocantins. In sense, were conduced six maize populations competition tests Palmas-TO, distributed two (01.21.2014 02.19.2014). each season, essays...
A utilização de óleos essenciais tem sido usado como uma alternativa no controle doenças e pragas pode ser viável. Na cultura da manga, a antracnose é considerada principal doença por causar prejuízos na produtividade qualidade dos frutos. O objetivo desse trabalho foi avaliar óleo essencial noni preventivo curativo mangueira. fungo fitopatogênico obtido partir do isolamento lesões características plantas manga. frutos maduros (Morinda citrifolia L.). Os bioensaios in vitro foram realizados...
Bipolaris maydis and Exserohilum turcicum are important fungal pathogens that cause leaf blight in corn whose control have been difficult. Essential oils a promising environmentally friendly alternative for disease management, but the mechanisms of action remain poorly studied. Here, we aimed to assess effect B. E. as well essential oil Morinda citrifolia activity plant defense enzymes plants. Experiments were carried out completely randomized design with three replications six treatments...
The use of plant essential oils has been adopted as less hazardous to the environment and human health than synthetic insecticides used for control insects that transmit diseases. Despite exerting insecticidal activities against several insect disease vectors, potential impacts on non-target organisms exerted by extracted from Lippia sidoides (Cham.) have not received adequate attention. Here, we evaluated susceptibility changes in consumption rates honey bees, Apis mellifera (L.), when...
Cassava (
The soybean cultivation (Glycine max (L.) Merrill) is responsible for the highest pesticides use in agriculture Brazil. There an environmental and social need to reduce of these substances crops. alternative products applied such as plant extracts essential oils, becomes necessary indispensable, mainly disease control. Among plants studied, Noni (Morinda citrifolia L.), has stood out some studies, where relevant fungitoxic results have been demonstrated, however, there are still few works...
The GMO foods are increasingly embedded in our daily diet, being frequent your market presence.These have as objective the improvement of production quality and resistance to pests herbicides.But even though these consumed, there is no consensus scientific community about safety for human health environment.Soon present work aimed go into field assess knowledge vision high school students private network on foods, this from application questionnaires schools municipality Gurupi-TO...
The study aims to select maize for the response and efficiency of use potassium (K), in municipality Gurupi, state Tocantins. Two trials genotypes were carried out Gurupi-TO, off-season 2017, one high K condition another low, applied coverage. experimental design each experiment was a randomized block with three replicates seven treatments. average grain production BK (6997 kg ha−1) lower than AK (7787 ha−1), which confirms that application fertilizers makes this answer applications...
e of this study was to evaluate the agronomic performance corn cultivars for grain production in south at low altitude Cerrado-Amazon ecotone.
 Place: The research carried out Sítio Vitória (8°18'32.0"S, 50°36'58.0"W, 278 MASL), state Pará, Brazil.
 Study Design: experimental design randomized blocks with twelve treatments and three replications. were eight hybrids: AG 1051, 8088, BM 3051, BR 2022, 205, 206, BRS 3046 PR 27D28; four open pollination populations: AL BANDEIRANTE,...
The present work was carried out to study, through track analysis, the characteristics that most influence grain yield in corn genotypes. trials were conducted 2017/18, municipality of Santa Maria Barreiras – PA, a region located Cerrado-Amazon Ecótono. Two competition maize cultivars installed, one low phosphorus conditions, with 50 kg ha-1from P2O5, and another under high phosphorus, 100 P2O5. experimental design used each assay randomized blocks three replicates ten treatments...
This study aimed to evaluate the analysis of trails with and without inoculation corn crop in municipality Gurupi-TO. The experimental design used was randomized blocks. It 20 treatments, a factorial scheme 2x10. treatments consisted 10 maize cultivars. agronomic characteristics evaluated were Number grains per row (NGPF), rows on cob (NFE), Plant height (AP), Height ear (AE), Humidity (UMID), grain yield kg ha-1 (PRODG). Trail performed through Gene computer program. Highlighting that Rows...