# Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso do Sul (IFMS)

• Campo Grande, Brazil
Recent publications
Resumo: O artigo tem por objetivo analisar as particularidades da operacionalização do estudo socioeconômico no âmbito das Políticas de Assistência Estudantil dos Institutos Federais de Educação, Ciência e Tecnologia da Região Centro-Oeste do Brasil. A partir da perspectiva materialista histórica e dialética, a produção recorreu à pesquisa bibliográfica e documental para elucidar as características e configurações desta atribuição privativa que de longa data vem sendo alvo de debates no âmbito do Serviço Social, em face das imprecisões dispostas na Lei de Regulamentação da Profissão. Os resultados da pesquisa apontam para uma arena contraditória, em que a simplificação torna a operacionalização do estudo socioeconômico burocrático e limitador, em vez de ser um mecanismo de ampliação do acesso e da permanência na educação profissional e tecnológica pública.
The transcriptomes of two distinct physiological moments of root dehydration condition were scrutinized in cowpea. The RD25 (first 25 min after root dehydration imposition) physiological data did not indicate significant alterations. For the other treatment, 150 min under root dehydration (RD150), all physiological data indicated that the studied cultivar was under stress. The physiological differences between RD25 and RD150 reverberated in the respective transcriptomes. The sets of in silico differentially expressed isoforms showed specificity for each treatment time. The comparison of T25 | UR [up-regulated transcripts in T25 (RD25 vs. Cont25)] vs. T150 | UR [up-regulated transcripts in T150 (RD150 vs. Cont150)] enriched GO terms (associated with abiotic stresses), despite certain similarities, showed us that they were associated with the respective physiological moments. Concerning gene families, a large portion of those present in the T25 | UR were associated with signaling processes; for T150 | UR, a miscellany of families (from transcription factors to nonenzymatic proteins) was observed. The plotting of transcriptomics data in the KEGG Pathway database indicated a change in the topology of activated metabolic modules in T25 | UR vs. T150 | UR. For the latter, it was observed that most activated modules were associated with specialized metabolism. C2H2 and BPC1 transcription factors (TFs) sites were enriched at T25 | UR and T150 | UR gene promoters, suggesting the importance of these TFs for cowpea response to root dehydration. Our work provides insights into specific molecular actors and pathways, enhancing our global understanding of cowpea stress response.
There is little information regarding the genetic diversity of native species aimed at identifying the best viable progenies for in situ and ex situ conservation. Furthermore, there is a lack of future forest improvement programs. We aimed to know the genetic diversity of 64 Peltophorum dubium (Spreng.) Taub. (Fabaceae) progenies. We determined this species' dendrometric characteristics, and when using multivariate techniques and cluster analysis, we verified the differences between the progenies and groups with less heterogeneity. The progeny and provenance test was installed in Dourados (Mato Grosso do Sul - MS), with seeds collected in three MS regions (Vale do Ivinhema, Serra de Maracaju, and Serra da Bodoquena) and in the micro-region of Lavras (Minas Gerais - MG). The experiment was conducted in an alpha lattice 8 x 8 with four repetitions. We found genetic variability among and within P. dubium populations for all height, diameter, circumference at breast height, volume, and basal area characters. We suggest that P. dubium populations have high genetic variability, which indicates possible genetic improvement through best progeny selection. The UPGMA and Tocher methods grouped the progenies into three and nine groups, respectively, in which the most divergent individuals come from MG and the Bonito region in MS. Based on morphological characters, P. dubium progenies identified as 45, 47, 49, 50, 55, and 59 from MG are the most promising, while progenies 6 and 9 were the least promising.
Climate classification systems are tools that facilitate the analysis, grouping, delimitation, and dissemination of the climatic characteristics of a region, contributing to the circumscribing of areas suitable for the agriculture and to the validation of various models of climate change. In this study, Brazilian life zone types were identified by using the initial variant of the well-known Holdridge eco-climatological classification, under different climate change scenarios. To describe current conditions in Brazil, daily time series of temperature and precipitation for the period 1989–2019 are used, derived from the National Aeronautics and Space Administration/Prediction of Worldwide Energy Resources (NASA/POWER) platform. Climate change was considered through four alternative scenarios. According to the original classification, under current conditions, the dominant life zone type is the type tropical basal moist forest, covering 60.57% of the country. An increase in temperature can cause a decrease in the dominance of this life zone type, though approximately half of the country may be covered by this type. Furthermore, in case of an increase of 3 °C, the type tropical basal dry forest could already cover a third of Brazil. An increase of 30% in precipitation could cause the emergence of several new life zone types, while the extent of the type tropical basal moist forest could then decrease to 50.12%. Due to the high variability of the life zone types obtained, the Holdridge system can be considered a useful tool to illustrate climate change impacts.
ABSTRACT: Brown eye spot (Cercospora coffeicola) is one of the main fungal diseases of coffee, leading to a significant drop in crop productivity and beverage quality in Brazil. The identification of potential risk areas for the development of the disease provides promising information for the management of the pathogen. This study aimed to elaborate an agroclimatic zoning for the incidence of brown eye spot on coffee under climate change scenarios, as suggested by IPCC (IPCC-AR5), in the main coffee-growing regions. Climate data of air temperature, precipitation, and relative humidity were collected from the National Aeronautics and Space Administration/Prediction of Worldwide Energy Resources – NASA/POWER platform from 1989 to 2020 for 46 municipalities in the states of Paraná, São Paulo, Minas Gerais, Espírito Santo, Goiás, and Bahia. The ideal climate for brown eye spot occurrence consists of an air temperature (Tmean) between 18 °C and 30 °C, relative humidity (RHmean) > 90%, and leaf wetness duration (LWD) > 9 hours. The number of hours of leaf wetness was determined by the sum of hours with relative humidity > 90%. Relative humidity was estimated for each hour of the day using air temperature and estimated data of mean dew point temperature, maximum relative humidity, minimum relative humidity. Climate change scenarios were designed based on sets of climate simulations for the 21st century. Scenario S1 is the current scenario without changes, while scenarios S2 and S3 show Tmean + 1.5 °C and 3.0 °C, respectively, with RHmean without changes. Scenarios S4 and S5 present RHmean varying from −30% to +30%, respectively, with Tmean unchanged. In the current scenario (S1), Minas Gerais presented a predominance of 100% for low climate risk to brown eye spot in September. Paraná presented a medium risk in 76.15% of the state in April. Scenarios S2 and S3 showed significant changes, increasing the average fitness class in the study region, mainly in the states of São Paulo, Minas Gerais, Rio de Janeiro, and Paraná. Scenario S4 showed 100% predominance of the low-risk class. In contrast, S5 showed the occurrence of the high-risk class for the study region with a +30% increase in relative humidity. Minas Gerais presented a predominance of the high-risk class for the development of C. coffeicola in 76%, 100%, 97.83%, 89.30%, 93.46%, 80.64%, and 57.77% from November to May, respectively. The presence of high relative humidity represents the main factor for the expansion of the high-risk class for the development of C. coffeicola.
The present study aimed to investigate the bioactivity of the essential oils of Protium heptaphyllum (Aubl.) (Sapindales: Burseraceae) and its major compound d-limonene in the control of Callosobruchus maculatus (Fabr.) (Coleoptera: Chrysomelidae: Bruchinae). The compounds in the oil were identified by gas chromatography–mass spectrometry (GC–MS). Contact toxicity, fumigation, and repellency tests were conducted. The lethal concentrations for the contact and fumigation tests were determined. In the repellency tests, the lethal concentrations previously determined in the contact test were used. The results showed that d-limonene was the major compound (40.1%) in the essential oil of P. heptaphyllum. d-limonene and P. heptaphyllum oil showed toxicity to C. maculatus in the contact and fumigation tests, and the oil showed higher toxicity (14.23 μL/20 g and 191.28 μL/L air), therefore being more toxic than d-limonene (36.42 μL/20 g and 437.34 μL/L air). The number of insects that emerged in the contact and repellency tests was reduced at all concentrations, which shows that the oil and d-limonene have an ovicidal effect. Repellent effects of P. heptaphyllum and d-limonene on C. maculatus were observed. The essential oil of P. heptaphyllum, which is more toxic than its major compound, has potential as an insecticide against C. maculatus.
The presente paper aims to compute climatological zones apt for the cultivation of pitaya based on trends in the occurrence of climate change events from the IPCC (Intergovernmental Panels on Climate Change) in Brazil. We used temperature and precipitation data from 4942 cities collected on the NASA/POWER platform (National Aeronautics and Space Administration/Prediction of Worldwide Energy Resources) from 1990 to 2020 to elaborate on the current scenario. The climate change scenarios were obtained using the CHELSA platform (Climatologies at high resolution for the earth's land surface areas) and corresponded to the periods 2041-2060 and 2061-2080 associated with four IPCC climate change scenarios. The spatialization of the data occurred according to the bioclimatic classes designed to meet the thermal and water needs of the crop. In the current scenario, class B5 has a predominance of 37.07% of the country, characterizing the Midwest, Southeast and Northeast regions and the state of Paraná as suitable for the cultivation of pitaya. Projections of temperature increase and reduction of accumulated rainfall were found throughout Brazil, but with greater impact in the North and Northeast regions, which had the greatest reduction of areas suitable for the cultivation of pitaya with a greater predominance of classes B8 and B9. In the South and Southeast regions, class B5 makes up a large part of the areas that remained suitable for the production of this fruit until 2080. The results suggest that climate change does not benefit the cultivation of pitaya in some regions of Brazil because the dimensions of the areas suitable for economic production are restricted.
Climate change is the main cause of biotic and abiotic stresses in plants and affects yield. Therefore, we sought to carry out a study on future changes in the agroclimatic conditions of banana cultivation in Brazil. The current agroclimatic zoning was carried out with data obtained from the National Institute of Meteorology (INMET) related to mean air temperature, annual rainfall, and soil texture data in Brazil. The global climate model BCC–CSM1.1 (Beijing Climate Center–Climate System Model, version 1.1), adopted by the Intergovernmental Panel on Climate Change (IPCC), corresponding to Representative Concentration Pathways (RCPs) 2.6, 4.5, 6.0, and 8.5 for the period 2050 (2041–2060) and 2070 (2061–2080), obtained through the CHELSA V1.2 platform, was chosen for the climate projections of the Coupled Model Intercomparison Project 5 (CMIP5). Matrix images at a depth of 5–15 cm, obtained through the product of the SoilGrids system, were used for the texture data. The ArcGIS software version 10.8 was used to construct the maps. RESULTS: Areas favorable to the crop plantation were classified as suitable when air temperature (TAIR) was between 20 and 29 °C, annual rainfall (RANNUAL) between 1,200 and 1,900 mm, and soil clay content (CSOIL) between 30 and 55%. Subsequently, the information was reclassified, summarizing the classes into preferential, recommended, little recommended, and not recommended. The current scenario shows a preferential class of 8.1%, recommended of 44.6%, little recommended of 47.1%, and not recommended of 0.1% for the Brazilian territory. CONCLUSION: The results show no drastic changes in the total area regarding the classes, but there is a migration from these zones, that is, from tropical to subtropical and temperate regions. RCP 8.5 – 2070 (2061–2080) showed trends with negative impacts on arable areas for banana cultivation at the end of the century.
This work evaluated, for the first time, the performance of an integral microalgae-based domestic wastewater treatment system composed of an anoxic reactor and an aerobic photobioreactor, coupled with an anaerobic digester for converting the produced algal-bacterial biomass into biogas, with regards to the removal of 16 contaminants of emerging concern (CECs): penicillin G, tetracycline, enrofloxacin, ciprofloxacin, sulfamethoxazole, tylosin, trimethoprim, dexamethasone, ibuprofen, naproxen, acetaminophen, diclofenac, progesterone, carbamazepine, triclosan and propylparaben. The influence of the hydraulic retention time (HRT) in the anoxic-aerobic bioreactors (4 and 2.5 days) and in the anaerobic digester (30 and 10 days) on the fate of these CECs was investigated. The most biodegradable contaminants (removal efficiency >80% regardless of HRT) were tetracycline, ciprofloxacin, sulfamethoxazole, tylosin, trimethoprim, dexamethasone, ibuprofen, naproxen, acetaminophen and propylparaben (degraded predominantly in the anoxic-aerobic bioreactors), and tetracycline, sulfamethoxazole, tylosin, trimethoprim and naproxen (degraded predominantly in the anaerobic reactor). The anoxic-aerobic bioreactors provided removal of at least 48% for all CECs tested. The most recalcitrant contaminants in the anaerobic reactor, which were not removed at any of the HRT tested, were enrofloxacin, ciprofloxacin, progesterone and propylparaben.
Ants, an ecologically successful and numerically dominant group of animals, play key ecological roles as soil engineers, predators, nutrient recyclers, and regulators of plant growth and reproduction in most terrestrial ecosystems. Further, ants are widely used as bioindicators of the ecological impact of land use. We gathered information of ant species in the Atlantic Forest of South America. The ATLANTIC ANTS data set–which is part of the ATLANTIC SERIES data papers–is a compilation of ant records from collections (18,713 records), unpublished data (29,651 records), and published sources (106,910 records; 1059 references), including papers, theses, dissertations, and book chapters published from 1886 to 2020. In total, the data set contains 153,818 ant records from 7,636 study locations in the Atlantic Forest, representing 10 subfamilies, 99 genera, 1,114 ant species identified with updated taxonomic certainty, and 2,235 morphospecies codes. Our data set reflects the heterogeneity in ant records, which include ants sampled at the beginning of the taxonomic history of myrmecology (the nineteenth and twentieth centuries) and more recent ant surveys designed to address specific questions in ecology and biology. The data set can be used by researchers to develop strategies to deal with different macroecological and regional‐wide questions, focusing on assemblages, species occurrences and distribution patterns. Furthermore, the data can be used to assess the consequences of changes in land use in the Atlantic Forest on different ecological processes. No copyright restrictions apply to the use of this data set, but we request that authors cite this data paper when using these data in publications or teaching events.
Climate change is the main cause of biotic and abiotic stresses on plants and has adverse effects on agriculture in a region. Cassava is fundamental for the socioeconomic development of region the Midwest of Brazil. Establish the appropriate places for planting in future climate change scenarios, collaborates in the planning of public policies and adaptation measures. The objective of study to carry out the agroclimatic zoning of cassava (Manihot esculenta Crantz) for the region Midwest of Brazil in future scenarios of climate change. We analyzed information on the relationship of climatic needs with the development of plants and establish the adaptive capacity of cultivation in the region. We used data corresponding to the historical serie of 1988-2018 of the National Aeronautics and Space Administration / Prediction of Worldwide Energy Resources - NASA / POWER, referring to average air temperature daily (ºC) and annual rainfall (Rmm). We consider areas suitable when TAIR was between 20 and 27 ºC and Rmm between 1,000 and 1,500 mm. The air temperature was increased by 1.5, 3.0, 4.5, and 6.0 °C and the rainfall change scenarios at -30, -15, +15 and +30% Rmm, were carried out as adopted by Pirttioja et al. The potential cultivation area of cassava will be reduced in most scenarios in relation to the current scenario, which has 44% of the suitable region, except in scenario 1 (-30% Rmm) and scenario 2 (-15% Rmm) with an increase of +12% and +20% in the adequate area, respectively. It is essential to adapt management systems to mitigate climatic changes effects on cassava growth, development and productivity, with the introduction of genes tolerant to biotic and abiotic stress in cassava varieties to increase their production, regardless of changes in climatic conditions. It appears that in addition to global awareness of climate change, agriculture must seek criteria based on science that meet the sustainable development of cassava.
This study evaluated the behavior and welfare conditions of laying chicks in the starter phase, fed with diets formulated with increasing levels of crude fiber (CF) and two feedstuffs with different fiber compositions. The experiment was developed at the Federal University of Goiás, in Goiânia - GO, Brazil. Three hundred Bovans White chicks were evaluated in a completely randomized design with a 2×2+1 factorial arrangement corresponding to two levels of CF in the diet (3.0 and 3.5%) and two fiber sources (wheat bran and sugarcane bagasse), plus a control treatment (maize- and soybean meal-based), totaling five treatments with six replicates of 10 birds each. Maintenance behavioral patterns and welfare were assessed at 21 and 42 days of age. There was no difference in behavior and classification by order of importance of the activities performed by the fiber-fed birds observed at 21 and 42 days, according to the Kruskal Wallis test (P>0.05). Medium and good welfare conditions were obtained with wheat bran at 3.5 and 3.0% CF, respectively, at 21 days of age. At 42 days, the use of sugarcane bagasse at the CF level of 3.5% and wheat bran at the level of 3.0%provided good behavior conditions. The use of crude fiber in the feeding of hens did not change their behavior.
Essential oils (EOs) are natural bioactive compounds that can be used in active release systems, such as films, coatings or sachets, being gradually transferred from packaging into foods, during storage time. They are a complex mixture of volatile compounds obtained from plants and fruits with biological properties, which can be used as preservatives or flavoring agents aiming to extend the shelf-life and increase the overall quality of foods. Due to their limitations, such as volatility and low solubility in water, and to improve their biological activities, EOs may be encapsulated before being incorporated into the polymeric matrix of a packaging. This technique provides a slow release of the EOs to the food surface or to the headspace of the package. EOs are classified as Generally Recognized as Safe (GRAS) by the Food and Drug Administration (FDA); however, the ingestion of higher doses can cause of serious problems of oral toxicity. It is necessary to find an equilibrium between the effective EO dose and the risk of toxicity to consider their use insurance for food purposes. Thus, several studies about EO emitters from packaging to food have been realized and the new technologies have contributed to improve food security, which will be discussed in this chapter.
This paper proposes a new design and practical implementation of a robust ${\mathcal H}_{\infty }$ control applied to some mechanical systems considering in the controller design full access to the state variables and in the equivalent controller implementation only the feedback of all positions or of all velocities of the plant. An important characteristic, though, is that limitations are considered for the state feedback. Two methods are presented, one that uses feedback only from state variables related to positions of the system and another that uses feedback only from state variables related to velocities. The control strategy is based on Linear Matrix Inequalities (LMIs), using the theory of $\mathcal D$ -stability, which allows the designer to allocate the closed loop system eigenvalues in a negative complex semi-plane region, which, in addition to ensuring stability, also allows to attend certain performance requirements of the feedback system. The paper motivation is to provide satisfactory control results with limited states access, without any kind of estimation of the state variables that are not available. Therefore, the proposed control systems are interesting options as alternatives for the design of full-order state feedback for plants with uncertain parameters using only output feedback, considering that it is not required to build an observer to estimate any plant state variable. Furthermore, their implementations are relatively cheaper because it is not necessary to measure all state variables of the plant.
Watermelon is traditionally grown under direct sowing system. However, due to high costs of good quality seeds of improved cultivars, seedling transplanting is a promising alternative for watermelon production. This study aimed at evaluating, during two production cycles, the performance of watermelon under direct sowing cultivation system and seedling transplanting. The field trials were carried out from May to September, 2015 and 2016, at Setor de Horticultura da Escola de Agronomia of Universidade Federal de Goiás. In 2015, the experimental design was randomized blocks (DBC) with four replicates in a 2x4 factorial scheme (two hybrids: Manchester and Talisman, and two planting methods: direct sowing and transplanting 15-, 20- and 25-day old seedlings). In 2016, the experimental design was DBC with six replicates. The treatments consisted of three direct sowing dates (0, 5 and 10 days) and three different seedling ages (15, 20 and 25 days). Number of leaves, plant height and dry mass of seedlings of different ages, vine length and virus incidence along the crop cycle were evaluated. Upon significant F-test (5%) for seedling age, regression analysis was performed, and when cultivar effect was significant, Tukey test (5%) was used. Planting methods (direct sowing X seedlings) were compared by orthogonal contrasts. In 2016, the beginning of flowering was evaluated, and in both trials, the average crop cycle for each treatment was determined. Fruit length and width, fruit mass, thickness of the white part of the rind, and soluble solids content were evaluated at harvesting. The 25-day old seedlings had higher number of leaves, as well as, higher dry mass, comparing with seedlings on the transplanting day. Yield and fruit quality were not influenced by treatments. No significant differences for virus disease incidence were detected, in both production cycles. Direct sowing reduced the crop cycle in both field trials, with no differences in production and quality of fruits. Considering the costs of establishing watermelon fields as relevant, the results suggest the importance of direct sowing as the most viable method for watermelon cultivation, due to the ease of the process, as well as, reduction in costs related to seedling production and transplanting operations.
The cultivation of blackberry trees has been increasing in Brazil, making it necessary to establish management and crop treatments in order to enhance its production. The aim of this study is to evaluate the production and quality of blackberry fruits cv. ‘Tupy’ regarding pruning seasons and trellis systems in the Southwest region of Mato Grosso do Sul. The experiment was developed with evaluations in two production cycles (2013 and 2014). Three trellis systems were studied: C1 – Double-wire trellis, C2 – single-wire trellis, and C3 – ‘T’ trellis; and the following three winter pruning times in both production cycles: P1: 07/12; P2: 07/27; and P3: 08/11. Production performances were similar within each year. In 2013, the harvest period ranged from 10/22/2013 to 01/07/2014, while in 2014 the period ranged from 09/24/2014 to 12/12/2014. In 2014, the highest fruit production per plant occurred when P3 was performed. Cultivation using the Double-wire trellis system (C1) produced 11,669.43 and 3,465.98 kg, while the single-wire trellis system (C2) produced 11,965.53 and 3,373.87 kg in 2013 and 2014, respectively. The highest pH of fruits was observed when pruning was conducted in P1 using the ‘T’ trellis system. Double-wire trellis contributes in higher results of production blackberry in the Southwest region of Mato Grosso do Sul.
O aumento da comunicação digital no cotidiano das escolas, principalmente, no contexto da pandemia decorrente da doença causada pelo novo coronaví­rus (Covid-19), vem demandando, cada vez mais, um letramento crí­tico, para o qual a educação deve priorizar uma postura ativa e reflexiva desses estudantes, estimulando-os a compreender a realidade em que estão inseridos para que tenham condições de agir em prol de mais justiça e igualdade nas relações sociais. Sendo assim, esta proposta tem por objetivo apresentar uma experiência interdisciplinar realizada remotamente por meio das Tecnologias Digitais da Informação e Comunicação (TDICs). Como resultado, pode-se dizer que os alunos tiveram uma postura bastante ativa durante todo o processo, saindo do papel de receptores de conhecimento e passando a produtores. Além disso, os participantes puderam entender como os campos do saber dialogam entre si para pensar um tema ou problema.