Doutorado em Agronomia
URI Permanente para esta coleção
Nível: Doutorado Acadêmico
Ano de início: 2010
Conceito atual na CAPES: 4
Ato normativo: Doutorado - Reconhecido Port. MEC 609, de 14/03/2019, DOU 18/03/2019, parecer 487/2018).
Periodicidade de seleção: Semestral
Área(s) de concentração: Produção Vegetal
Url do curso: https://producaovegetal.ufes.br/pt-br/pos-graduacao/PPGA/detalhes-do-curso?id=1440
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- ItemAplicação de biomateriais sustentáveis na conservação pós colheita(Universidade Federal do Espírito Santo, 2025-08-01) Coutrim, Ranyelly Leão; Ayub, Ricardo Antonio ; https://orcid.org/; http://lattes.cnpq.br/; Zucoloto, Moises; https://orcid.org/; http://lattes.cnpq.br/; https://orcid.org/; http://lattes.cnpq.br/; Davi, Leandro Pi; https://orcid.org/; http://lattes.cnpq.br/; Coelho, Jussara Moreira; https://orcid.org/; http://lattes.cnpq.br/; Prestes, Rosilene Aparecida ; https://orcid.org/; http://lattes.cnpq.br/; São José, Alcebíades Rebouças; https://orcid.org/; http://lattes.cnpq.br/The indiscriminate use of synthetic petroleum-based polymers has caused serious environmental impacts, mainly due to their low degradability, accumulation in terrestrial and aquatic ecosystems, and the lack of efficient plastic waste management. In view of this issue, there is increasing interest in renewable and environmentally friendly alternatives capable of partially replacing conventional polymers in industrial and food applications. Among the emerging strategies, the valorization of lignocellulosic residues and the development of sustainable biopolymers stand out, integrating technological innovation, circular economy, and environmental conservation. In this context, the present study aimed to integrate food preservation strategies and forest residue valorization through three complementary chapters, addressing from the practical application of active packaging in postharvest management to the green extraction of biopolymers from forest by-products. In Chapter 1, the efficiency of active absorber sachets (zeolite, potassium permanganate, silver nitrate, and iron) was evaluated in the postharvest conservation of ‘BRS Fascínio’ peaches stored at 7 °C and 25 °C. Sachets containing potassium permanganate and iron proved to be the most effective, prolonging shelf life and preserving fruit quality. Chapter 2 presented a review on active and intelligent packaging, highlighting their role in sustainability and extending the shelf life of perishable products. In Chapter 3, the selective extraction of cellulose and lignin from the sterile bracts of Araucaria angustifolia was carried out using the ethanosolv process, which employs ethanol and hydrochloric acid. The cellulose showed Iβ polymorphism (2θ = 14.8°, 16.3°, 22.5°, 34.7°, 37°) and typical bands at 3330, 2890, 1160, and 897 cm⁻¹, while lignin exhibited bands at 3400, 1600, 1510, and 1265 cm⁻¹ and a residual band at 1740 cm⁻¹, indicating the presence of hemicellulose. It is concluded that the proposed approaches represent viable and environmentally safe alternatives for food preservation and sustainable biopolymer production, aligned with the principles of bioeconomy and circular economy
- ItemDesempenho produtivo e caracterização físico-química de frutos de 58 copas de laranjeiras-doce sobre quatro porta-enxertos, no extremo sul da Bahia(Universidade Federal do Espírito Santo, 2024-02-22) Oliveira, Vinicius de Souza; Zucoloto, Moises; https://orcid.org/0000-0003-0539-4750; http://lattes.cnpq.br/9552365183163692; https://orcid.org/0000-0003-4068-1587; http://lattes.cnpq.br/7213222193584056; Oliveira, Fábio Luiz de; https://orcid.org/0000-0002-1711-6988; http://lattes.cnpq.br/8904451083627425; Santos, Dierlei dos; https://orcid.org/0009-0007-0191-0347; http://lattes.cnpq.br/7387102623054844; Barbosa, Dimmy Herllen Silveira Gomes; http://lattes.cnpq.br/0224172632816293; Gonzatto, Mateus Pereira; https://orcid.org/0000-0001-6394-2802; http://lattes.cnpq.br/4757020233262210Two studies were conducted with 58 sweet orange tree cultivars, using the mandarin ‘Sunki Tropical’ and Citrandarin ‘San Diego’, ‘Riverside’ and ‘Indio’ as rootstock. The studies were carried out at Fazenda Chão Bello, located in the municipality of Ibirapuã, in the extreme south of the State of Bahia, Brazil. The first study was carried out through comparative analysis of the 58 tops cultivars on the four rootstocks, evaluating the characteristics: equatorial diameter, fruit mass, peel thickness, number of seeds, soluble solids, titratable acidity, Ratio and juice yield. The tops Pera CNPMF-D-3, Pera Olímpia, Pera Bianchi, Jaffa e Westin presented characteristics that define fruits with quality standards. Also, the tops Pera Olímpia, BRS Sincorá e Westin on ‘Sunki Tropical’ rootstock, Pera CNPMF-D-3, Pera CNPMF-D-25, BRS Sincorá, Aquiri e Russas P.S on the rootstock 'San Diego', Pera CNPMF-C-32, Pera CNPMF-D-3, Pera CNPMF-D-6, Pera CNPMF-E-6, Pera Bianchi, Pera CNPMF-CE-03, Salustiana e Westin on 'Riverside' rootstock are suitable for the juice production industry. For the second study, the 58 tops cultivars on the four rootstocks had their total productivity estimated. The tops Pera CNPMF A15, Pera CNPMF C-21, Pera CNPMF D-3, Pera CNPMF-D-25, Pera CNPMF E-6, Pera CNPMF CE-03, Pera Olímpia, Pera Bianchi, Pera Vacinada, Pera Ipeal-E3, Pera Ibotirama, Valencia CNPMF Montemorelos, Natal CNPMF-112, Berna, F-Menuda, BRS Sincorá, Aquiri, Early Oblong, Russas P.S., Seleta Itaboraí, Pineapple e Westin were more productive on the 'Sunki Tropical' rootstock. The tops Pera Ibotirama, Valencia CNPMF 02, Valencia CNPMF 03, Valencia CNPMF-27, Valencia CNPMF 36, Valencia L. White, Natal CNPMF 112, Berna, Aquiri, Early Oblong, Salustiana, Diva e Hamlin CMPMF-20 were more productive on the 'San Diego' rootstock. The tops Pera CNPMF 02, Pera CNPMF C-32, Pera CNPMF D-6, Pera CNPMF D-25’, Pera Olímpia, Valencia CNPMF 01, Valencia CNPMF 02, Valencia CNPMF, Valencia CNPMF 27, Valencia CNPMF 36, Valencia CNPMF-F11, Valencia Chapman, Valencia CNPMF Montemorelos, Valencia CNPMF Tuxpan, Natal CNPMF 02, Natal Ipeal, Natal CNPMF 112, F-Menuda, Seleta Itaboraí, Salustiana, Pineapple, Hamlin CNPMF-20 e MelRosa were more productive on the 'Riverside' rootstock. The tops Pera CNPMF A-15, Pera CNPMF D-25, Pera Ipeal E3, Valencia CNPMF 01, Valencia CNPMF 02, Valencia CNPMF, Valencia CNPMF 36, Valencia CNPMF-F11, Valencia Delta, Valencia Chapman, Valencia CNPMF Montemorelos, Valencia Registro, Valencia CNPMF Tuxpan, Valencia CNPMF 21, Natal CNPMF 01, Natal CNPMF 112, Berna, Aquiri, Diva e Hamlin CNPMF-20 were more productive on the 'Indio' rootstock.
- ItemAspectos físicos, químicos e sensoriais de genótipos de Coffea canephora cultivados em altitude de transição e submetidos à dois métodos de fermentação(Universidade Federal do Espírito Santo, 2025-07-29) Vargas, Amanda Dutra de; Colodetti, Tafarel Victor ; https://orcid.org/0000-0002-9233-5988; http://lattes.cnpq.br/5870736853541181; Pereira, Lucas Louzada; https://orcid.org/0000-0002-4436-8953; http://lattes.cnpq.br/4325262830029581; Tomaz, Marcelo Antonio; https://orcid.org/0000-0002-5307-0219; http://lattes.cnpq.br/7116075671588859; https://orcid.org/0000-0002-2506-425X; http://lattes.cnpq.br/3592760307270175; Dalvi, Leandro Pin; https://orcid.org/0000-0002-2995-8007; http://lattes.cnpq.br/7662111330884819; Osório, Vanessa Moreira; https://orcid.org/0000-0001-5156-4568; http://lattes.cnpq.br/3282723304057244; Rodrigues, Wagner Nunes; https://orcid.org/0000-0002-4830-0040; http://lattes.cnpq.br/0154094974905867; Senra, João Felipe de Brites; https://orcid.org/0000-0001-7915-2821; http://lattes.cnpq.br/2268398576674753One post-harvest approach in coffee that is on the rise is fermentation, which alters beverage quality. Thus, the present study aimed to evaluate the influence of different fermentative methods on the physical, chemical, and sensory characteristics of Coffea canephora genotypes cultivated at transition altitude. A completely randomized design (CRD) was used, with a split-plot scheme, where the plots consisted of 27 genotypes from three different cultivars (‘Diamante ES-8112’, ‘Jequitibá ES-8122’, and ‘Centenária ES 8132’) and the subplots consisted of two fermentative methods (self-induced anaerobic fermentation and washed), with three replications. The variables analyzed were: proportion of beans retained on screen 15 and above, black beans, green beans, sour beans, insect-damaged beans, broken beans, shriveled beans, total defects, trigonelline content, chlorogenic acid, caffeine, volatile chemical composition, fragrance/aroma, flavor, aftertaste, acidity, sweetness, body, uniformity, balance, clean cup, overall impression, and final beverage score. Some characteristics showed a significant effect of the interaction between genotypes and fermentative methods (proportion of beans retained on screen 15 and above, green beans, sour beans, insect-damaged beans, total defects, aroma, aftertaste, body, overall impression, final score, and trigonelline content). Genotype 109 demonstrated great potential for quality, as it obtained higher averages for the sensory attributes aroma, aftertaste, body, overall impression, and final score for both fermentations, and it also stood out for flavor, acidity, sweetness, uniformity, balance, and clean cup, even without the effect of fermentative methods. The most predominant compound was furfuryl alcohol, and the most abundant chemical groups were furans, followed by pyrazines. An increase in caffeine and pyrazine content led to losses in sensory attributes, while an increase in furan content enhanced these attributes, resulting in quality gains. Self-induced anaerobic fermentation outperformed the washed method for most of the variables analyzed
- ItemCancro dos ramos do cafeeiro (CRC) : variabilidade de genótipos resistentes e eficácia de fungicidas(Universidade Federal do Espírito Santo, 2024-04-26) Rocha, Matheus Ricardo da; Xavier, André da Silva ; https://orcid.org/0000-0002-9251-0301; http://lattes.cnpq.br/5661020509713522; Alves, Fábio Ramos ; https://orcid.org/0000-0001-8200-2891; http://lattes.cnpq.br/6721628649701157; Partelli, Fábio Luiz ; https://orcid.org/0000-0002-8830-0846; http://lattes.cnpq.br/6730543200776161; Moraes, Willian Bucker ; https://orcid.org/0000-0001-7478-7772; http://lattes.cnpq.br/6727861982577995; https://orcid.org/0000-0003-3230-9101 ; http://lattes.cnpq.br/1542743237704263; Araujo, Leonardo ; https://orcid.org/0000-0003-4793-4751; http://lattes.cnpq.br/4382140574298409; Gramacho, Karina Peres ; https://orcid.org/0000-0003-4037-1554; http://lattes.cnpq.br/2851798514812201; Jesus Júnior, Waldir Cintra de ; https://orcid.org/0000-0001-5711-0268; http://lattes.cnpq.br/2614953467362376; Cavatte, Paulo Cezar ; https://orcid.org/0000-0003-2963-7673; http://lattes.cnpq.br/8029279967950425; Tomaz, Marcelo Antônio ; https://orcid.org/0000-0002-5307-0219; http://lattes.cnpq.br/7116075671588859Brazil is the world's largest producer and exporter of coffee (Coffea spp.) and the second largest exporter of conilon coffee. However, fungal diseases such as stem canker of coffee trees (SCC), caused by Fusarium spp., have the potential for damage up to 100% in susceptible C. canephora genotypes. The disease is currently being managed without specific control methods, such as resistant genotypes and fungicides. In this sense, the objective was to characterize the resistance of clones and the effectiveness of fungicides for the control of SCC, caused by F. solani. For the resistance experiments, seedlings of 36 C. canephora clones, 20 from the robusta varietal group and 16 from the conilon varietal group, were inoculated with F. solani using the Mycelial Inoculation in Wounded Stems (IMC) method, transferring discs of mycelium and spores of the pathogen, grown on potato-dextrose-agar (PDA) for 10 days, for longitudinal sections in the stem of each sampling unit. The quantified disease data over time were subjected to analysis of variance, Scott-Knott mean tests and bootstrapping with the aid of R software, grouping clones according to resistance. For the variable internal lesion length (cm) and according to the Scott Knott tests, the clones Imbigudinho, Bamburral, Bicudo, P2, AD1, A1, AP and Peneirão were grouped among the most resistant of the conilon varietal group, while G20, L33, VR4, R22, R40 and 7 were the most resistant clones of the robusta varietal group. For F. solani mycelial growth inhibition and chemical control experiments, ten fungicides (Met+Flu, Dif+Pid, Cyc, Tia, Tia+Flu+Met, TioMet+Flu, Pid, TioMet, Pro+Nap and Flu) were tested in preventing mycelial growth F. solani in increasing doses between 0.0001-10000 µg.mL-1 in PDA culture medium. The EC50, effective concentration to inhibit 50% of the pathogen, estimated according to the log-logistic model LL2.3 in the R software, was between 0.06-5.77 µg.mL-1 in our results, and only the fungicide Flu was considered inefficient, with EC50 greater than 50 µg.mL-1 . At greenhouse, four doses of nine fungicides were sprayed preventively before inoculation, inoculated with F. solani by the IMC method on C. canephora seedlings with three pairs of leaves (clone LB1). Based on Kaplan-Meier curves estimates in the R software and log-rank tests, fungicide application tested for reducing symptoms and dry branches. The fungicides Pro+Nap, TioMet, Dif+Pid, TioMet+Flu, and Cyc were the most efficient, with no plant drought occurring at the highest doses under study, with a probability of plant survival of up to 100% throughout the entire experiment. The results obtained in this study will be essential to establish more efficient integrated management of SCC, an important disease expanding in C. canephora producing regions in Brazil
- ItemNovas tecnologias em fertilizantes nitrogenados : volatilização de amônia e produtividade do cafeeiro conilon(Universidade Federal do Espírito Santo, 2018-04-03) Machado, Ramires Ventura; Mendonça, Eduardo de Sá ; https://orcid.org/0000-0003-3284-7129; http://lattes.cnpq.br/4735276653354808; Andrade, Felipe Vaz ; https://orcid.org/0000-0003-0631-8581; http://lattes.cnpq.br/2975343157348373; https://orcid.org/0000-0001-8227-9540; http://lattes.cnpq.br/9391806610978072; Passos, Renato Ribeiro ; https://orcid.org/0000-0001-7730-748X; http://lattes.cnpq.br/3882320619443256; Rangel, Otacilio José Passos ; https://orcid.org/0000-0002-1539-6533; http://lattes.cnpq.br/7212423450267908; Donagemma, Guilherme Kangussu ; https://orcid.org/0000-0003-0535-4783; http://lattes.cnpq.br/3949124993859559Urea is the most used nitrogen fertilizer in Brazil and in the world, but its superficial application may result in losses due to volatilization of ammonia, due to the action of urease. The growing demand for food associated with the concern of society with the environment has encouraged the search for new technologies to reduce the losses associated with the application of fertilizers, especially nitrogenous ones. The aim of this study was to evaluate the dynamics of nitrogen, from the application of new technologies associated with nitrogen fertilizers. For this the present thesis is structured in 4 chapters. Chapter 1 relates to a laboratory experiment in a 5 x 2 x 2 factorial scheme, with 5 nitrogen fertilizers (conventional urea (UA), urea + boron and copper (UBC), urea + urease inhibitor - NBPT (UNBPT) , and 2 fertilizers with sulfur-polymer coated urea (UPS1 and UPS2), 2 matric potentials (-30 kPa and -75 kPa) and 2 forms of application: Form 1 (100% of the dose applied uniquely at the beginning of the experiment) and Form 2 (50% at the beginning of the experiment and 50% at 7 days), aiming to quantify losses by volatilization of NH3 from the application of fertilizers with associated technology submitted to different matric potentials and application forms. Chapter 2, also performed in the laboratory, besides quantifying NH3 volatilization, also determined the urease activity and soil CO2 flux using 4 nitrogen fertilizers (conventional urea (UC), urea + boron and copper (UBC), urea + urease inhibitor - NBPT (UNBPT) and urea coated with sulfur and polymer (UPS) and the same application forms used in chapter 1. Chapter 3 refers to a greenhouse experiment to evaluate the initial growth of conilon coffee as a function of the application of new technologies in nitrogen fertilizers submitted to different matric potentials. The same fertilizers used in chapter 2 and two different matric potentials were used -75 kPa and -150 kPa. Chapter 4 was carried out from an experiment in the field to evaluate the nutrition and production of conilon coffee from the application of technologies in nitrogen fertilizers submitted to different forms of application. The fertilizers used were the same as in Chapter 3 and the application forms were 100% of the nitrogen fertilization in single application; 50% of the nitrogen fertilization applied in the flowering and 50% in the grains formation; and 65% of nitrogen fertilization applied in flowering and 35% in grains 10 formation. Chapter 1 demonstrated that new technologies in nitrogen fertilizers reduced the volatilization of N-NH3, where the polymer and sulfur coated fertilizers presented lower losses due to volatilization of N-NH3. The treatments with higher matric potential (-30 kPa) reduced the volatilization of N-NH3 by 16.3% and the single fertilization (100%) presented on average losses by volatilization of N-NH3 23.5% lower. In Chapter 2 it was observed that technologies applied to nitrogen fertilizers (UBC, UNBPT and UPS) reduced losses by volatilization by 40% and soil urease activity by 22% when compared to UC, with UPS being the fertilizer received the best evaluation. The split reduced N-NH3 volatilization losses by 36.1 and 65.2% for UNBPT and UPS fertilizers respectively, and the CO2 flux did not change as a function of the treatments. Chapter 3 concluded that nitrogen fertilizer technologies influenced the initial growth and nutrition of the conilon coffee tree, increasing leaf area (8.8%), leaf dry matter (9.7%) and stem (11.8%), and N content in the dry matter in the leaf (12.9%). The UC, UBC and UNBPT were influenced by a higher matric potential (-75 kPa). The UPS was not influenced by the soil matric potential. Chapter 4 demonstrated that nitrogen fertilizer technologies applied to conilon coffee produced 17 bags per hectare more than conventional urea. There was no difference between N fertilizer technologies when evaluating the productivity and concentration of total N and P in the leaves of conilon coffee, and that the application of each nitrogen fertilizer did not influence the productivity and nutrition of conilon coffee