EA - Artigos publicados em periódicos

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Análise das características biométricas e sólidos solúveis da cana-de-açúcar em diferentes locais de produção em Goiás: implicações para a qualidade da cachaça
(2025) Miguel, Guilherme Martini Souza Nunes; Ribeiro, Alline Emannuele Chaves; Morgado, Cristiane Maria Ascari; Bueno, Gisana Cristina Alves; Gonçalves, Marcella Elyza Teodoro; Briceno, Julio Cesar Colivet; Silva, Flavio Alves da; Caliari, Márcio; Oliveira, Tatianne Ferreira de
This study aimed to evaluate the biometric characteristics and soluble solids of sugarcane produced in three municipalities in Goiás (Orizona, Alexânia, and Goiás), focusing on the relationship between these variables and their implications for cachaça production. Biometric analyses were conducted on sugarcane fields at full maturation stage, consid-ering variables such as plant height, stalk diameter, average weight, and number of leaves. In addition, soluble solids were measured in Brix degrees, reflecting the sugar content in the stalks. Principal Component Analysis (PCA) revealed distinct variability patterns between the production sites, with three principal components explaining 87.69% of the total variance. The analysis indicated that biometric characteristics, such as stalk diame-ters and average weight, had greater importance in plants from certain locations, while soluble solids showed a negative correlation with the production site. This study provides crucial information for improving the quality of sugarcane for cachaça production, emphasizing the importance of managing biometric characteristics and soluble solids to optimize the final product quality.
The development of protein biscuits for pets containing proteinrich baru residue (Dipterix alata Vog)
(2025) Maria, Zamira Abel de Jesus; Almeida, Maria Carolina de; Briceno, Julio Cesar Colivet; Silva, Flávio Alves da; Sá, Fernando Pereira de; Caliari, Márcio; Oliveira, Tatianne Ferreira de
The objective of this work was to evaluate the chemical composition of by-product flours for the development of dog biscuits. 5 formulations were prepared with 0%, 5%, 10%, 15% and 20% replacement of baru by-product flours. Defatted pie flour contains high levels of protein (25.93 g 100 g-1) and lipids (24.89 g 100 g-1), but low in total fiber (6.15 g 100 g-1). Baru bark flour had low lipid (1.0 g 100 g-1) and protein (5.34 g 100 g-1) contents, but high total fiber content (59.67 g 100 g-1). The levels of total phenolic compounds vary from (14525 and 12532 mg EAG g 100 g-1) with emphasis on baru peel flour. The predominant nutrients in the cookies were carbohydrates (56.49 to 51.20 g 100 g-1for cookies made with baru bark flour (BCB) 52.78 and 49.62 for cookies made with degreased pie flour baru (BTDB), followed by lipids (21.67-23.53 g 100 g-1for BTDB and 19.05-22.33 g 100 g-1for BCB) and protein (12.10-15.05 for BTDB g 100 g-1and 11.23 and 12.19 for BCB g 100 g-1), the study highlights the importance of using by-products in the development of dog food products.
Perfil químico, antioxidante e cromatográfico de cachaça envelhecida em tonéis de carvalho americano, castanha-do-pará, amburana e bálsamo em 12 meses
(2025) Mendes, Dianiny de Cássia Sousa; Freitas, Renata Carvalho de; Miranda, Bruna Melo; Morgado, Cristiane Maria Ascari; Briceno, Julio Cesar Colivet; Silva, Flavio Alves da; Caliari, Márcio; Oliveira, Tatianne Ferreira de
This study evaluated the impact of ageing in American oak, Brazil nut, amburana and balsam barrels on the chemical, antioxidant and chromatographic profile of cachaça over 12 months. The newly distilled cachaça used had an alcoholic strength and higher alcohol content above the legal limits, while the other parameters complied with MAPA Normative Instruction 13/2005. The furfural content showed significant variations during ageing, with increases of 161.84% (oak), 247.30% (chestnut), 233.33% (amburana) and 192.68% (balsam). The chestnut, amburana and balsam barrels, being of first use, contributed to the highest furfural gains. The furfural content in the different barrels varied between 0.63 and 1.83 mg/100 mL of anhydrous alcohol, depending on the type of wood. The antioxidant potential was assessed by means of DPPH decolorization in the alcoholic and aqueous extracts. For the alcoholic extracts, discoloration ranged from 3.19% to 27.02%, with the balsam barrels showing the highest final values. In the aqueous extracts, the values ranged from 0.00% to 1.59%, again with balsam standing out as the wood that provided the greatest antioxidant potential. The results indicate that the type of wood used to age cachaça directly influences its chemical profile and antioxidant properties, with balsam barrels standing out in both respects.
Influence of cultivation region on color, volatile compounds, phenolics, and antioxidant activity of Arabica coffee (Coffea arabica) Catuaí cultivar in Brazil
(2025) Cabral, Daniel Velloso; Briceno, Julio Cesar Colivet; Cardoso, Claudio Fernandes; Silva Filho, Roberto Braz da; Sousa, Luciana Aparecida de; Oliveira, Tatianne Ferreira de; Silva, Flavio Alves da
Coffee is one of the world’s main commodities, with Brazil being the largest producer. When it meets production and sensory quality requirements, coffee can be classified as a specialty by the Brazilian Coffee Industry Association or Specialty Coffee Association, being recognized for its aroma and taste, defined by volatile and non-volatile organic compounds, as well as the benefits such as antioxidant activity, which can vary according to the cultivation region. This study evaluates the influence of different planting locations on volatiles, color, phenolics, and antioxidant activity in Arabica coffee (Catuaí cultivar) from five Brazilian regions. The coffees were roasted uniformly, analyzed by gas chromatography-mass spectrometry for volatiles, colorimeter for color, and liquid-solid extraction for phenolics (Folin-Ciocalteu) and antioxidant activity [2,2’-azinobis-(3-ethylbenzthiazolin-6-sulfonic acid), 2,2-diphenyl-1-picrylhydrazyl, and ferric reducing antioxidant power]. The data was treated using Analysis of variance and Tukey’s test, as well as boxplot, principal component analysis, and heatmap. The colors varied significantly between the regions. Twenty-seven volatiles were common to the 5 regions, with distinct sensory contributions such as pyridine and acetic acid in coffee from the Rio Paranaíba region, and 1-methylpyrrole for the other regions. For phenolic and antioxidant content, coffee from the Rio Paranaíba region had the highest values. It was possible to see a distinction between the coffees by planting location.
Comparative study of bioactive, volatile and mineral compounds present in five different varietal groups of pepper Capsicum spp.
(2025) Peres, Daiane Sousa; Santos, Priscila Alonso dos; Pilon, Lucimeire; Miranda, Bruna Melo; Santos, Cleberly Evangelista dos; Silva, Flávio Alves da
The objective of this study is to provide a comprehensive comparison of five underexplored Brazilian Capsicum cultivars, Maria Bonita (MB), Dedo-de-moça (DM), Bode (BD), Malagueta (ML), and Habanero (HB), and highlight their distinct nutritional and bioactive profiles. It was to evaluate the physicochemical, bioactive, volatile, mineral and capsaicinoid qualities of the five different peppers. Maria Bonita, Bode and Habanero present different morphological and physicochemical characteristics due to genetic diversity. The cultivar DM presented the lowest value of L* (35.32) and chromaticity (41.52), indicating a darker color. The ML pepper obtained the lowest value of water content (70.43 g/100 g), consequently obtaining better results in the centesimal composition. The highest carotenoid contents were found for DM (1857.36 μg/g), BD (769.67 μg/g) and HB (774.49 μg/g) respectively. The cultivars differed significantly in terms of macrominerals and microminerals. Capsaicinoid levels did not differ for ML (120,403.69 SHU) and HB (128,086.00 SHU). The cultivars bode, malagueta and habanero stood out, presenting higher levels of bioactives, indicating a high potential for these peppers in functional foods and value-added applications, such as pharmaceutical and biotechnological.
Activated carbons from Baru (Dipteryx alata Vog.) waste impregnated with copper oxide: application in the postharvest preservation of bananas
(2025) Oliveira, Ana Carolina de Jesus; Silva, Flávio Alves da; Oliveira, Tatianne Ferreira de; Valdés, Héctor
Banana is an agricultural commodity cultivated extensively in tropical and subtropical regions with consumption demand worldwide. During the ripening process, several biochemical reactions occur that are linked to the production of ethylene, which determines the shelf life and quality of the fruit. Ethylene can promote excessive ripening and decay of fruits and vegetables, even at very low concentrations. Therefore, an ethylene control strategy needs to be developed to address this challenge. This study aimed to evaluate the effects of using activated carbon from baru (Dipteryx alata Vog.) waste, impregnated with copper oxide, as potentially efficient materials for eliminating ethylene and maintaining postharvest quality of bananas. The developed adsorbent materials showed high ethylene adsorption capacity, validating their potential application in real storage conditions for climacteric fruits. The evaluation of quality attributes, like color, firmness, weight loss, total titratable acidity, total soluble solids, and total soluble solids/total titratable acidity ratio, confirmed the effectiveness of activated carbon and activated carbon impregnated with copper oxide in delaying the ripening and senescence process compared to bananas in the control group. The results of this study contribute to the development of ethylene adsorbent materials that combine sustainability and efficiency, with promising applications in the food industry to reduce postharvest losses.
Kinetics of volatile aromatic compound production during the aging of cachaça in different types of wood
(2025) Briceno, Julio Cesar Colivet; Rabelo, Paula Novais; Belo, Lúcio; Mendes, Dianiny de Cássia Sousa; Caliari, Márcio; Silva, Flavio Alves da; Morgado, Cristiane Maria Ascari; Oliveira, Tatianne Ferreira de
This study evaluated cachaças aged up to 48 months in four types of wood (oak, amburana, balsam, and chestnut), with analyses performed every four months, totaling 48 samples per type of wood. Compounds such as ethyl acetate, ethyl lactate, and aldehydes were identified and quantified by gas chromatography and were kinetically modeled by the Peleg model. The results demonstrated that the model presented an excellent fit to the experimental data (R² > 0.94), indicating that the production of volatile compounds follows second-order kinetics. The initial production rate was higher in the first 24 months, with stabilization observed after this period. Tropical woods, like amburana, balsam, oak, and chestnut, presented a higher initial production rate than oak, demonstrating a slower but constant evolution throughout aging. Light and volatile compounds, such as acetaldehyde and ethyl acetate, predominated initially, contributing to fresh and fruity aromatic profiles. Compounds with a higher molecular weight, as ethyl palmitate and phenols, became more evident in the final stages and were associated with denser and more complex sensory notes. This study highlights the significant impact of wood type and aging time on the chemical and sensory profile of cachaça, providing valuable information for optimizing the aging process and developing beverages with unique aromatic characteristics.
Animal-derived proteins as stabilizers of Pickering emulsions: applications and challenges
(2025) Souza, Ana Carla Aguiar de; Briceno, Julio Cesar Colivet; Trindade, Dennia Pires de Amorim; Conceição, Edemilson Cardoso da; Oliveira, Tatianne Ferreira de; Gómez-Estaca, Joaquín; Silva, Flavio Alves da
Emulsions are precursors for formulating stable food products with high demand worldwide and efficient cosmetics that can provide the capability of delivering bioavailable active ingredients. The development of Pickering emulsions is crucial because they can eliminate the more prolonged need for chemical stabilizers, increasing the sustainability and stability of the formulation. Conventional emulsion formulations employ chemical surfactants to stabilize. Nevertheless, incorporating proteins as emulsion stabilizers improves stability and attractiveness. Therefore, a systematic reference review is essential to give theoretical knowledge of Pickering emulsions and their structures and properties to review critical aspects, the mechanisms, and the vital applications to promote their stability. The subject of this review article is research focused on developing new protein modification technologies, improving their properties, and extending their applications. The applications of casein, whey protein, and egg albumin as emulsion stabilizers primarily focus on widely published literature. The present study focuses on evaluating the food industrial applications of casein, whey protein, egg albumin, lactoferrin, and myofibrils. The bioavailability of casein, whey protein, and egg albumin is essential for applying in Pickering emulsion, and it can be a limiting factor. We are opening new opportunities and options for utilizing alternative proteins, such as emulsion stabilizers.
The science of aging: understanding phenolic and flavor compounds and their influence on alcoholic beverages aged with alternative woods
(2025) Souza, Tainá Francisca Cordeiro de; Miranda, Bruna Melo; Briceno, Julio Cesar Colivet; Gómez-Estaca, Joaquín; Silva, Flávio Alves da
Aging in wooden barrels is a proven technique that enhances the sensory complexity of alcoholic beverages by promoting the extraction of volatile and phenolic compounds. While oak has been traditionally used, there is a growing interest in exploring alternative wood species that can impart distinct sensory characteristics and promote innovative maturation processes. This review examines the impact of alternative woods on the aging of beverages, such as wine, cachaça, tequila, and beer, focusing on their influence on aroma, flavor, color, and chemical composition. A bibliometric analysis highlights the increasing scientific attention toward wood diversification and emerging aging technologies, including ultrasound and micro-oxygenation, which accelerate maturation while preserving sensory complexity. The role of toasting techniques in modulating the release of phenolic and volatile compounds is also discussed, emphasizing their contribution to unique sensory profiles. Additionally, regulatory aspects and sustainability considerations are explored, suggesting that alternative woods can expand flavor possibilities while supporting environmentally sustainable practices. This review underscores the potential of non-traditional wood species to drive innovation in the aging of alcoholic beverages and provide new sensory experiences that align with evolving consumer preferences and market trends.
Effects of thiamethoxam insecticide on sugarcane plant growth under chemical ripening at early and late harvest
(2025-07) Silva, Deise de Paula; Oliveira, Josiane Aparecida Viveiros de; Jacomassi, Lucas Moraes; Oliveira, Marcela Pacola; Marques, Letusa Momesso; Siqueira, Gabriela Ferraz de; Martello, Jorge Martinelli; Foltran, Rodrigo; Soratto, Rogério Peres; Dinardo-Miranda, Leila Luci
Chemical ripeners are applied to ensure the quality of the final product in sugarcane production, especially under unfavorable conditions for sucrose accumulation. In addition, bioactivators such as the insecticide thiamethoxam can stimulate plant development. Thus, the application of thiamethoxam to sugarcane regrowth associated with ripener may have phytotonic effects and improve sugarcane quality and yield. The aim of this study was to understand the effects of thiamethoxam foliar application to sugarcane ratoon treated with trinexapacethyl as a ripener. Four management strategies (treatments) were introduced and tested in six field experiments conducted across the early and late harvest seasons: no chemical application (control), application of 250 g a.i ha-1 trinexapac-ethyl (0.4 Lha-1 of commercial product) as a ripener, application of thiamethoxam 100 g a.i ha-1 (0.4 kg ha-1 of commercial product) as a bioactivator, and application of ripener and bioactivator. Thiamethoxam application increased stalk yield by 14 Mg ha-1 compared with the control, and joint application with ripener increased sugar yield by up to 3 Mg ha-1 due to an increase in total recoverable sugar (TRS) of up to 11% compared with the control (139.9 kg Mg-1). The increases in biomass in response to thiamethoxam application increased potential energy production (MWh) by 16.8% compared with the treatments without insecticide. The integration of thiamethoxam into sugarcane management enhanced yield, biomass, and energy-related traits without compromising technological quality. When combined with trinexapac-ethyl, it increased sugar yield per hectare. These benefits point to improved land-use efficiency. However, given its classification as a neonicotinoid, further studies are needed to assess long-term safety. Such research is key to aligning productivity with sustainability in sugarcane systems.
Enhancing cherry tomato performance under water deficit through microbial inoculation with Bacillus subtilis and Burkholderia seminalis
(2025) Oliveira, Henrique Fonseca Elias de; Silva, Thiago Dias; Silva, Jhon Lennon Bezerra da; Selaria, Priscila Jane Romano Gonçalves; Silva, Marcos Vinícius da; Mesquita, Marcio; Silva, Josef Augusto Oberdan Souza; Ferrarezi, Rhuanito Soranz
Crop productivity can be affected by biotic and abiotic stressors, and plant growth promoting bacteria (PGPB) from the genera Bacillus and Burkholderia have the potential to maintain fruit yield and quality, as these bacteria can promote plant growth by solubilizing nutrients, fixing atmospheric nitrogen, producing phytohormones, and exhibiting antagonistic activity against pathogens. This study aimed to evaluate the effects of inoculating plants with Bacillus subtilis and Burkholderia seminalis on their morphological characteristics, fruit technological attributes and yield of common cherry tomatoes (Solanum lycopersicum L.) subjected to induced water deficit. The study was arranged on a split-plot randomized block design, with four water replacement levels (40%, 60%, 80% and 100% of crop evapotranspiration, ETc) and three inoculation treatments (Bacillus subtilis ATCC 23858, Burkholderia seminalis TC3.4.2R3 and non-inoculation). Data were subjected to analysis of variance using the F-test and compared using Tukey’s test (p < 0.05) and multivariate statistics from principal component analysis. Inoculation with Burkholderia seminalis increased the plant fresh and dry shoot and root mass, as well as root volume. Inoculation with Bacillus subtilis increased carotenoid and chlorophyll b contents. Both inoculations enhanced leaf water content in plants experiencing severe water deficit (40% of ETc). The use of these strains as PGPB increased the fruit soluble solids content. Higher productivity in inoculated plants was achieved through a greater number of fruits per cluster, despite the individual fruits being lighter. Treatments with higher water replacement levels resulted in greater yield. Inoculations showed biotechnological potential in mitigating water deficit in cherry tomatoes.
Silicon as a strategy to mitigate abiotic stresses and improve physiological performance and grain yield of maize grown under tropical climate conditions
(2025-09) Lima, Mateus de Leles; Flores, Rilner Alves; Nunes, Maxuel Fellipe; Sousa, Xavier Renato Gomide de; Casaroli, Derblai; Dapper, Felipe Puff; Capuchinho, Frank Freire; Santos, Glenio Guimarães; Abdala, Klaus de Oliveira; Marques, Letusa Momesso
Although the beneficial effects of silicon on plant resistance to biotic and abiotic stresses are recognized, there is a lack of knowledge regarding its application in field conditions and its direct impact on physiological metabolism, root development, and, most importantly, the economic return of corn production in tropical regions. This study is justified by the need to quantify the effects of foliar silicon application on these variables, providing a scientific and economic basis for optimizing corn productivity and profitability in tropical environments. The objective of this study was to evaluate the effect of silicon on physiological metabolism, root system development, grain yield, and the potential economic return of maize production in a tropical region. The study was conducted under field conditions in two growing seasons (2020 and 2021), using a randomized block design in a 2 × 5 factorial arrangement with four replications. The first factor consisted of the maize growing seasons, and the second factor was foliar silicon fertilization (0 (control), 150, 300, 450, and 600 g ha−1). Foliar fertilization with silicon at a dose of 150 g ha−1 increases transpiration rate by up to 9%, net photosynthetic rate by 13%, and grain yield of maize by 10% after two growing seasons, regardless of the water deficit experienced during the crop cycle. At this dose, silicon application is economically viable, yielding the highest differential profit (USD 97.11 ha−1). In conclusion, foliar fertilization with silicon is an agronomically and economically viable strategy for efficient maize grain production during the second growing season in tropical reg
Water deficit, fertigation, and bio-inputs in sugarcane cultivation: a scientometric review and practical recommendations
(2025) Pierre, Bianca Soares; Casaroli, Derblai; Alves Júnior, José; Evangelista, Adão Wagner Pêgo; Flores, Rilner Alves; Teixeira, Itamar Rosa
Brazil is the world's leading producer of sugarcane (FAO, 2020). However, certain production regions face periods of severe water deficit and are characterized by low-fertility soils. Research highlights the importance of irrigation and fertigation as effective strategies to improve growth and productivity. Simultaneously, bio-inputs have emerged as a sustainable alternative to conventional chemical fertilizers. This study aims to evaluate research trends on water deficit, fertigation, and bio-inputs in sugarcane cultivation, and to provide recommendations for optimal outcomes. A comprehensive search of the Scopus database was conducted using the following keywords: "water stress" OR "water deficit" AND "sugarcane"; sugarcane AND "fertirrigation*" OR "fertigation*"; sugarcane AND "fertirrigation*" OR "fertigation*" AND "water" AND "deficit*"; sugarcane AND "bioinputs". The scientometric analysis considered the year, journal, and geographic distribution of publications. Recommendations are based on articles published in the last decade, focusing on irrigation depth, fertilizer types and dosages, and bio-inputs. A notable rise in publications, particularly from Brazil and India, has been observed over time. High yields (≥100 Mg ha-1) were reported even under water deficit conditions (50% ETc). The most recommended fertilizer rates were 60–120 kg ha-1 of nitrogen and 130–320 kg ha-1 of K₂O. One study on bio-inputs demonstrated a 10.7% increase in productivity compared to mineral fertilizers, with phosphate-solubilizing micro-fertilizers being the most commonly used bio-fertilizers.
Planting densities and growing times of tomato cultivars for industrial processing in the climatic conditions of the Cerrado of Goiás (Brazilian Savanna)
(2025) Evangelista, Adão Wagner Pêgo; Alves Júnior, José; Bezerra, Ricardo de Souza; Casaroli, Derblai
The tomato planting density for industrial processing is usually 30 thousand plants ha-1 in Goiás region, to any hybrids and planting times. However, this is a topic that farmers still have many doubts about it. Thus, the objective of this work was to evaluate the response of different hybrids, grown in different planting densities and growing seasons. For this, six experiments were conducted in 2017, in Abadia de Goiás, Brazil, three experiments in season 1 (April-August), and three experiments in season 2 (May-October), for three hybrids: N-901, U-2006 and CVR- 2909, and five planting densities: 20, 25, 30, 35 and 40 thousand plants ha-1, and five replications (experimental design randomized complete blocks) and the total fresh mass of the fruits was collected to determine the production per plant (kg.plant-1) and total productivity (t ha-1). There was a significant interaction between planting densities and hybrids for all production factors evaluated. The total and commercial productivity of the hybrids CVR-2909 and N-901 responded quadratically to the evaluated planting densities, and the yields presented by the U-2006 hybrid did not respond to variations in planting densities. The plants of the hybrid U-2006 are small in size with more compact growth compared to the plants of the other hybrids evaluated, which probably confers a lower leaf area index and, consequently, a lower rate of photosynthesis due to the lower interception of solar radiation. The total productivity of hybrid N-901 when cultivated in season 1 (autumn-winter) was 28.6% lower than the total productivity of cultivation in season 2 (winter-spring). The hybrid U-2006 presents the lowest productive performance among the other hybrids evaluated and its productivity does not respond to the variation in planting density between 20 thousand plants ha-1 and 40 thousand plants ha-1. The yields of the hybrids CVR-2909 and N-901 respond positively to the increase in planting density up to 40 thousand plants ha-1.
Biomass and nutritional stock of litter in crop-livestock-forest integration system in brazilian Cerrado
(2025) Guimarães, Luanna Elis; Xavier, Ana Carolina Freitas; Ferreira, Fernanda Gomes; Freitas, Paulo Vitor Divino Xavier de; Pereira, Márcio Junior; Santos, Deborah Rodrigues de Souza; Calil, Francine Neves; Silva Neto, Carlos de Melo e
The litter comprises the bed of debris that accumulates on the soil of forest ecosystems. Several biotic and abiotic factors influence the production of serapilheira, however, little is known about the contribution of the biomass of serapilheira to the nutritional stock only in consortium plantations. The objective of this study was to identify the accumulated litter biomass production and its nutrient contents from intercropping in a crop-livestock-forest integration system (CLFS) of three years of age. Litter accumulated between rows and between plants was collected in the dry and rainy periods. For all the samples, the dry mass and nutritional content were determined. The total average litter biomass production was 17.9 Mg ha-¹. However, there was a difference among the seasons, and the greatest accumulation occurred during the dry season, as explained by the water stress of the given period. On the other hand, the nutrients did not present any difference between the periods or sites collected. The highest accumulated biomass was obtained in the dry season, and the leaves were the most representative fraction. The contribution of macronutrient storage to the litter followed in the following order: Ca>N>Mg>K>P>S. In micronutrients, it followed: Fe>Mn>B>Zn>Cu. Thus, the stock of litter is of great importance for nutrient cycling in crop-livestock-forest integration system in Brazilian Cerrado.
Physiological quality of bean seeds cultivated with rhizobia reinoculation and Azospirillum co-inoculation at different growth stages
(2025) Cunha, Nathan Mickael de Bessa; Teixeira, Itamar Rosa; Teixeira, Gisele Carneiro da Silva; Rocha, Ednaldo Cândido; Bravo, Tamires Ester Peixoto; Souza, Andressa Laís Caldeira de; Damião, Eulina Fernandes; Sbroggio Filho, Alexandre Marcos
This study evaluates the impact of Rhizobium tropici reinoculation and Azospirillum brasilense co-inoculation at different growth stages on the physiological quality of common bean seeds. A randomized block design was used, assessing germination, vigor, electrical conductivity, seedling length, and dry mass. Treatments T7 (co-inoculation R. tropici + A. brasilense at R5) showed the highest germination rates, indicating enhanced seed viability. The accelerated aging test revealed that T7 exhibited greater resistance to stress, presenting greater seedling vigor, whereas T10 and T11 were more susceptible. The electrical conductivity results remained stable across treatments, suggesting that cell membrane integrity was not significantly compromised. Seedling length and dry mass did not present significant variations, reinforcing the idea that early germination and vigor are primary indicators of seed quality. Canonical discriminant analysis and MANOVA confirmed significant treatment differences, highlighting the influence of inoculation strategies on seed physiology. Overall, co-inoculation with Rhizobium tropici and Azospirillum brasilense (particularly in T7) demonstrated potential to improve seed quality at lower cost, offering sustainable alternatives for optimizing agricultural production.
Seed quality of chickpea and common bean as a function of the application of Ascophyllum Nodosum doses seaweed extract
(2025) Viana, Rafael Gonzaga; Teixeira, Itamar Rosa; Ferreira, Alexandre Braz; Teixeira, Gisele Carneiro da Silva; Cunha, Nathan Mickael de Bessa; Sbroggio Filho, Alexandre Marcos; Lisboa, Cristiane Fernandes; Mota, José Hortêncio
The application of A. nodosum based seaweed extract can enhance seed quality. However, the positive results regarding the use of this technology remain unclear. This study investigated the impact of different doses of organomineral seaweed-based fertilizer on the seed quality of chickpea and common bean. A completely randomized design was used with four replications, and the treatments consisted of seed treatments with five doses of A. nodosum seaweed extract for chickpea (0, 50, 100, 150, and 200 mL of extract per 100 kg of seeds) and of (0, 125, 250, 375 and 500 mL of extract per 100 kg of seeds) for common bean. After harvest, the seeds were analyzed using the following tests: germination, first count, seedling length, and seedling dry mass. It was concluded that the seed quality of chickpea and common bean was influenced by the addition of A. nodosum seaweed extract. Doses of seaweed extract higher than 100 and 250 mL per 100 kg of seeds negatively affected the physiology of chickpea and bean seeds, respectively. The doses of 100 and 250 mL per 100 kg of seeds resulted in higher-quality seed lots of chickpea and common bean, offering valuable insights for future agricultural practices and the advancement of sustainable, cost-effective production.
Cultivo de alface crespa produzidas em hidroponia em diferentes ambientesde cultivo
(2025) Chaves, Victor Souza; Maia, João Pedro; Teixeira, Itamar Rosa; Mota, José Hortêncio
The cultivation of lettuce in hydroponics is growing in Brazil, which makes it necessary to conduct studies to evaluate the cultivars available on the market in various locations and growing environments, since some may present variations in agronomic performance depending on specific conditions. The aim of this study was to evaluate the agronomic performance of commercial lettuce cultivars of the loose leaf group in a hydroponic cultivation system in two different covering environments: greenhouse covered with low density polyethylene and red roof photo converter. The randomized block design was used with three repetitions and ten cultivars (Amanda, Brida, Caipira, Camila, Cristal, Invicta, Solaris, Thais, Vanda, and Vera). The variables analyzed were: total and commercial fresh mass; stem and root fresh mass; number of leaves; stem length and diameter, and dry mass content. The Brida cultivar showed the highest total fresh mass (330.08 g plant-1) and commercial fresh mass (308.50 g plant-1) when grown on polyethylene cover and also the highest total fresh mass (341.2 g plant-1) and commercial fresh mass (322.6 g plant-1) when grown on red canvas. All cultivars evaluated, in both growing environments, presented standard for the fresh market.
Management of soil surface roughness and plant density affecting harvest losses of common bean cultivars
(2025-08) Silva, José Geraldo da; Nascente, Adriano Stephan; Gonzaga, Augusto César de Oliveira; Melo, Leonardo Cunha
The management of soil surface roughness, sowing density, and cultivar characteristics can impact productivity and grain losses in common bean harvests. This study aimed to determine the effect of soil rolling immediately after planting and seeding density on grain yield and harvest losses of two common bean cultivars. A field experiment was conducted using a randomized complete block design with a 4×2×2 factorial scheme and four replications. The treatments consisted of combining four plant densities (6, 9, 12, and 15 plants per meter) with two soil rolling conditions (with and without a soil roller) and two common bean cultivars (BRS FC 414 and BRS FC 415). The results showed that BRS FC 414 plants had higher internodes, a greater insertion angle of the first internode, larger hypocotyl diameter, greater pod height, and lower harvest losses compared to BRS FC 415. However, soil rolling had no effect on reducing harvest losses. Increasing plant density resulted in a reduction in the height of the tallest pods, a decrease in the percentage of pods in the upper third, and an increase in the percentage of shorter pods, ultimately leading to greater harvest losses.
Temporal analysis of pasture vegetation cover in central-western Brazil using remote sensing
(2025) Moreira, Alisson Neves Harmyans; Ciappina, Angelina Harmyans; Andrade, Rafaella Resende; Casaroli, Derblai; Rossi, Giuseppe; Conti, Leonardo; Bambi, Gianluca
Brazil is the world's leading exporter of beef, consolidating beef cattle farming as an important branch of national livestock farming. The expansion of livestock farming and agriculture in recent decades has resulted in a notable increase in pasture areas in Brazil. However, the country faces the growing challenge of pasture degradation, a problem that threatens sustainability and food production. On the other hand, livestock farming in Brazil's Central-West region, the country's largest cattle-producing area, particularly in the state of Goiás, can cause environmental damage when sustainable practices are disregarded. Thus, the objective of this article was to evaluate pasture degradation, at different levels, in the Ribeirão Serra Negra Watershed, in the municipality of Piracanjuba, Goiás, Brazil. Using images from the Sentinel-2A orbital sensor, the NDVI (Normalized Difference Vegetation Index) vegetation index and the vegetation cover classes of pastures were obtained between 2017 and 2021. During this period, the results showed that more than 98% of the areas had some level of degradation, with an average coverage of 6,586.1 ha. There was an upward evolution in the levels of vegetation cover between 2017 and 2019, with the best pasture conditions predominating in 2019. These assessments help identify areas that require greater attention and often necessitate conservation practices and management plans. In this context, monitoring degraded areas is a practice that facilitates the improvement of existing pastures, promotes the rational management of inputs, conserves natural resources, and aligns with development programs focused on sustainability.

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