Artigos - Horticultura - FCA

URI Permanente para esta coleção

https://hdl.handle.net/11449/5181

Navegar

Agora exibindo 1 - 20 de 612

Growth and macronutrient accumulation in tomato cultivated in an organic system
(2023-01-01) De Almeida, Luciana G.; Cardoso, Antonio Ismael Inácio [UNESP]; Candian, Joara S. [UNESP]; Filho, Helio Grassi [UNESP]; Sartori, Maria Márcia P. [UNESP]; SP; Universidade Estadual Paulista (UNESP)
The aim of this study was to characterize the growth and nutrient absorption of ‘Debora Victory’ tomato grown in organic system. The treatments consisted of nine sampling dates, at 2, 32, 46, 60, 77, 91, 109, 122 and 137 days after transplantation (DAT). In the last sampling, plants reached an estimated accumulation of dry and fresh weight in plant shoots of 550 and 9,528 g/plant, respectively. At the end of the cycle, the distribution of dry matter was 73% in the fruits, 16% in the leaves and 11% in the stem. The yield of total fresh fruits was estimated at 154.7 t/ha. The decreasing order of nutrient accumulation in plant shoots was K>N>Ca>P>S>Mg, with estimated values of 22.6; 10.4; 5.0; 2.3; 2.1 and 1.6 g/plant, respectively, corresponding to 431; 198; 95; 44; 40 and 30 kg/ha of K, N, Ca, P, S and Mg, respectively. The decreasing order of nutrient accumulation in the fruits was K>N>P>S>Mg>Ca, with estimated values of 16.6; 8.4; 1.7; 0.8; 0.7 and 0.2 g/plant, respectively, which corresponded to an estimated total extraction of 315; 153; 32; 16; 14 and 3 kg/ha of K, N, P, S, Mg and Ca, respectively. In the last sampling, the greatest accumulation of N, P and K occurred in the fruits and Ca, S and Mg in the vegetative organs (stem + leaves).
Photosynthesis, Biochemical and Yield Performance of Grapevine Hybrids in Two Rootstock and Trellis Height
(2023-05-01) Domingues Neto, Francisco José [UNESP]; Pimentel Junior, Adilson [UNESP]; Modesto, Lenon Romano; Moura, Mara Fernandes; Putti, Fernando Ferrari [UNESP]; Boaro, Carmen Silvia Fernandes [UNESP]; Ono, Elizabeth Orika [UNESP]; Rodrigues, João Domingos [UNESP]; Tecchio, Marco Antonio [UNESP]; Universidade Estadual Paulista (UNESP); Universidade Federal de Santa Catarina (UFSC); Agronomic Institute of Campinas (IAC)
The interaction between variety, rootstock, and trellis height is important for grapevine management, mainly for producing new varieties of grapes for juice and wine in new wine-growing regions with high production potential. Then, this study aimed to evaluate the rootstocks and trellis height influence on photosynthesis, biochemical, and yield performance for grapevine hybrids. The experiment was carried out in a randomized block design using two factors, rootstocks (‘IAC 766’ and ‘106-8 Mgt’) and trellis height (until 1.6 and 2.0 m), evaluated for two grapevine hybrids (IAC 138-22 ‘Maximo’ and ‘BRS Violeta’). During grapevine flowering, it was evaluated photosynthesis and biochemical performance, for this, the gaseous exchanges were measured using the open system photosynthesis equipment with a CO2 analyzer and water vapor by infrared radiation, being net assimilation rate of CO2, stomatal conductance, transpiration rate, internal CO2 concentration, water use efficiency, carboxylation efficiency (Rubisco), and the flux density of photosynthetically active photons. At the stages of grapevine flowering and ripening berries were evaluated the antioxidant enzymes (peroxidase (POD), superoxide dismutase (SOD), and catalase (CAT)), total soluble proteins, chlorophylls, and SPAD. The interaction between rootstock and trellis heigh influenced varieties’ photosynthesis, biochemical, and yield performance. In conclusion under subtropical conditions, better photosynthesis, biochemical, and yield performance were observed when both cultivars were grafted on the ‘IAC 766’ rootstock. The ‘IAC 138-22 Maximo’ was trained until 2.0 and grafted on the ‘IAC 766’ rootstock, increasing grape production and photosynthesis efficiency. In addition, this variety was more productive than ‘BRS Violeta’.
Traditional botanical knowledge: food plants from the Huni Kuĩ indigenous people, Acre, western Brazilian Amazon
(2023-01-01) Pilnik, Málika Simis; Argentim, Tarik; Kinupp, Valdely Ferreira; Haverroth, Moacir; Ming, Lin Chau [UNESP]; National Institute for Amazonian Research (INPA); Centro; Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA); Universidade Estadual Paulista (UNESP)
The Kaxinawá indigenous people (auto-identified as the Huni Kuĩ) are native to the western Amazon, on the Brazilian border with Peru, and have an extensive biodiversity-related knowledge, which is parti of a coherent social-ecological system. Our study investigated native knowledge of edible forest plants, in three communities within the Kaxinawá Indigenous Land on the Lower Rio Jordão, Acre state, Brazil. The principal methods used were participant observation, open and semi-structured interviews and walk-in-the-woods. The study recorded 89 native food species. Some 60% are managed in food-production areas, with 56% of the recorded species have received little or no scientific study of their food potential. The role which natural systems play in Huni Kuĩ society is indicated by the management and use of a high diversity of native species, which contributes to food security and nutritional sovereignty. However, there is a progressive under-utilization and substitution of forest species, due to the introduction of cultivated exotic species and the increase in consumption of industrialized products. An enhancement of the value given to native food-plants is needed to encourage continuing autonomy of production, and diet diversification, as well as the conservation of sociobiodiversity of traditional peoples in the Amazon through sustainable management practices of the current social-ecological system.
Phenology, thermal demand, and maturation development of the ‘BRS Vitória’ grape cultivated on different rootstocks in subtropical conditions
(2023-01-01) Callili, Daniel [UNESP]; Sánchez, Camilo André Pereira Contreras [UNESP]; Campos, Olivia Pak [UNESP]; Carneiro, Débora Cavalcante Dos Santos [UNESP]; Scudeletti, Ana Carolina Barduzzi [UNESP]; Tecchio, Marco Antonio [UNESP]; Universidade Estadual Paulista (UNESP)
The purpose of this study was to assess how ‘IAC 572’, ‘IAC 766’, and ‘Paulsen 1103’ rootstocks affected the duration of phenological phases, thermal de-mand, and chemical evolution throughout production cycle of the ‘BRS Vitória’ table grape cultivated in subtropical conditions. The duration of the following pheno-logical stages was measured in days after pruning throughout two production sea-sons: budburst, flowering, setting, veraison, and harvest date. The thermal demand was determined using the degree-day concept. Titratable acidity, pH, soluble solids, and the maturation index were all measured throughout berry maturation. In gen-eral, the rootstocks ‘IAC 572’ and ‘IAC 766’ increased vine precocity in comparison to ‘Paulsen 1103’ during the early phenological phases. However, the vines grafted on ‘Paulsen 1103’ were earlier in the later phases, that is, at the veraison and at the harvest date, when compared to those grafted on the rootstocks ‘IAC 572’ and ‘IAC 766’. Under subtropical conditions, the total cycle period of the ‘BRS Vitória’ vine varied from 131 to 143 days, with thermal demands ranging from 1,545 to 1,725 DD. In comparison to the ‘IAC 572’ and the ‘IAC 766’, the ‘Paulsen 1103’ supplied the berries with a higher accumulation of soluble solids and a higher maturation index.
Application of calcium and boron directed to inflorescences in production, quality and nutrient accumulation in lettuce seeds
(2023-01-01) Bezerra, Sara Raissa B. [UNESP]; Marques, Isabella B. [UNESP]; Bardiviesso, Estefânia M. [UNESP]; Pelvine, Raíra A. [UNESP]; Aguilar, Ariel S. [UNESP]; Cardoso, Antonio Ismael Inácio [UNESP]; Universidade Estadual Paulista (UNESP)
Calcium and boron are important nutrients in the stages of flowering, pollen germination and in the fruiting process. As these nutrients are poorly mobile in the plant, some authors recommend foliar spraying in the production of seeds of some species. The objective was to study the influence of calcium and boron, via application directed to inflorescences, in production, quality and accumulation of nutrients in lettuce seeds. Four treatments were evaluated (only calcium: 0.72 g/L; only boron: 0.17 g/L; joint application of calcium and boron and control), in randomized blocks design with six replications. No influence was obtained between the treatments for seed production (number and weight of seeds per plant). Using boron, alone or together with calcium, the weight of a thousand seeds was lower compared to control, while only calcium did not differ from the control. No differences were obtained for germination and seed vigor. The application of calcium did not affect the accumulation of nutrients, however boron application increased the accumulation of this nutrient in the seeds. The application of calcium and boron directly in the inflorescences of lettuce did not promote an increase in the production and vigor of the seeds.
Gibberellic Acid Concentrations and Storage of Caryocar brasiliense (Caryocaraceae) Seeds Propagated in Tubes
(2022-11-01) Lacerda, Vander Rocha [UNESP]; Pagehú, Levi Fraga; Gonçalves, Armando Pego; Vieites, Rogério Lopes [UNESP]; Lopes, Paulo Sérgio Nascimento; Universidade Estadual Paulista (UNESP); Universidade Federal de Minas Gerais (UFMG)
The immersion of seeds in gibberellic acid solutions can promote dormancy breaking. Storage can be dynamic in seed longevity. The objective of this work was to evaluate different concentrations of gibberellic acid applied to seeds isolated from two storage times on the emergence of C. brasiliense tree seedlings grown in tubes. There were two experiments with different planting and storage times. The seeds were extracted from the endocarp. In both, a randomized block design was used with the following seven treatments: 0, 50, 100, 500, 1000 and 2000 mg L−1 of GA3 and dry seeds without pre-soaking, with five replications of 20 seeds. The seeds were treated with fungicide and sown in tubes containing substrate. After 60 days, evaluations and transplantation were carried out. In the experiment with older pyrenes (seeds stored for seven months), there was high seed mortality (96.54%) and a small emergence rate (3.45%). On the other hand, when new pyrenes were used, the percentage of dead seeds was 32.71% and emergence was 62.28%. GA3 did not stimulate germination or the diameter of C. brasiliense tree seedlings, except for stem length. The 2000 concentration provided a greater stem length and greater leaf area compared to dry seeds.
Calcium and boron foliar application in the production and quality of sweet pepper seeds
(2022-01-01) Cardoso, Antonio Ismael Inácio [UNESP]; Colombari, Lidiane F. [UNESP]; Silva, Gustavo F. [UNESP]; Chaves, Prínscilla Pâmela N. [UNESP]; Nogueira, Bianca B. [UNESP]; Putti, Fernando F. [UNESP]; Universidade Estadual Paulista (UNESP)
Calcium and boron are important nutrients in pollen grain formation and seed production. As they are little mobile in plants, it is common to be supplied via foliar application. The objective of this research was to evaluate the production and quality of sweet pepper seeds with calcium and boron application directed to flowers and fruits. The experimental design was in randomized blocks, with seven replications. Four treatments were evaluated: isolated calcium (0.2%) application, isolated boron (0.1%) application, combined application of calcium (0.2%) and boron (0.1%), and the control without calcium and without boron. The characteristics evaluated were number of pollen grains, number of seeds per fruit; 1000 seed weight; physiological quality of seeds (germination, first germination count, and germination speed index) and protein (albumin, globulin, prolamine and glutelin) contents in seeds. Both the application of calcium and boron did not affect the physiological quality of the seeds. Boron application reduced seed production and the 1000 seed weight, while calcium application increased the number of pollen grains, seed production and seed albumin content, and, therefore, the application of calcium in the production of sweet pepper seeds is recommended.
Nutrient content and accumulation in mini lettuce as a function of fertigation management strategies
(2022-01-01) Pereira, Laércio da S. [UNESP]; Saad, João Carlos C. [UNESP]; Cardoso, Antonio Ismael Inácio [UNESP]; de Castro, Verônica Andressa [UNESP]; Lima, Carlos José G de S.; da Silva, Everaldo M.; Universidade Estadual Paulista (UNESP); Universidade Federal do Piauí (UFPI)
Determining the amount of nutrients accumulated by crops is an important tool for defining the order in which nutrients are taken up and required. However, the order and amount of accumulated nutrients vary depending on the genetic characteristics of the cultivars, climatic conditions, fertilization, soil and management systems. The aim of this study was to evaluate the influence of irrigation management strategies and doses of nitrogen (N) fertigation on the content and accumulation of macro and micronutrients and the N use efficiency in mini romaine lettuce “Astorga” cultivated in a protected environment, in two consecutive crop cycles. The treatments consisted of three irrigation strategies: continuous irrigation (Cont), intermittent irrigation, with three fractions a day, at 1-hour intervals (Int1); intermittent irrigation, with three fractions a day, at 4-hour intervals (Int2) and two nitrogen doses (100 and 130 kg/ha N), in daily fertigation. Intermittent irrigation management strategies (Int1 and Int2) increased the contents and accumulation of dry matter and N, P, K, Ca, Mg, S, B, Fe, Mn and Zn. The dose of 130 kg/ha N only increased the content and accumulation of P and Mn in the first and second cycles, respectively. In general, lettuce accumulated macronutrients in the following decreasing order: K>N>Ca>P>Mg>S, whereas micronutrients followed the order Fe>Mn>Zn>B>Cu. The treatments Int1, Int2 and 100 kg/ha N optimized the N use efficiency.
Amazonian Forest Peoples' Perceptions of Malaria on the Upper Rio Negro, Brazil, are Shaped by Both Local and Scientific Knowledge
(2022-11-03) Frausin, Gina; Dos Santos Bruno, Ana Carla; Freitas Hidalgo, Ari De; Ming, Lin Chau [UNESP]; Milliken, William; Pohlit, Adrian Martin; National Institute for Amazon Research (INPA); Federal University of Amazonas (UFAM); Universidade Estadual Paulista (UNESP); Royal Botanic Gardens
Malaria is endemic in Brazilian Amazonia, accounting for 99% of national cases. Amazonian forest peoples (both Indigenous and traditional) understand and treat the disease based on their knowledge, rituals, and religion. In recent decades, biomedical health coverage has expanded in the region, with implications for local perceptions and practices to prevent, treat, and recover from malaria. This paper attempts to understand how the expansion of biomedical healthcare among forest peoples interacts with their ethnomedicinal knowledge. Our results clearly indicate that most of our research participants in rural northwest Amazonia believe that malaria has a variety of causes, forms of prevention, and treatment. We also found that these beliefs are shaped by both local knowledge (including Indigenous) and some technical concepts of biomedicine. Consequently, new approaches and practices in healthcare need to be developed which consider forest peoples' perceptions and understanding. .
Calcium and Boron Foliar Application in the Production and Quality of Zucchini Seeds
(2022-01-01) Colombari, Lidiane Fernandes [UNESP]; da Silva, Gustavo Ferreira [UNESP]; Chamma, Larissa [UNESP]; Chaves, Prínscilla Pâmela Nunes [UNESP]; Makita, Miguel Kenzo [UNESP]; Soman, José Marcelo [UNESP]; Cardoso, Antonio Ismael Inácio [UNESP]; Universidade Estadual Paulista (UNESP)
Although there are fertilization recommendations for the cultivation of zucchini, there are just few researches about the effects of nutrients in seed production. Calcium and boron have a low mobility in plants, and some researches recommend foliar application for these nutrients. Thus, the objective of this research was to evaluate the foliar application of calcium and boron in the production and quality of zucchini seeds. The experimental design was randomized blocks with seven replications. Four treatments were evaluated: only calcium (0.2%) application, only boron (0.1%) application, combined application of calcium (0.2%) and boron (0.1%) and the control (without calcium and boron.) The following characteristics were evaluated: number of pollen grains per flower, hundred seeds weight; seed number and weight per fruit and seed physiological quality (germination; first germination count and speed of germination index - SGI). Only boron application reduced the number of seeds produced per fruit. The combined foliar application of calcium and boron, in addition to reducing the number of seeds, also reduced SGI. The calcium only application increased the amount of pollen per flower (superior to all other treatments) and also the number of seeds per fruit (compared to the combined application of calcium + boron), without affecting the quality of the zucchini seeds. So, it can be recomended the aplication of Ca during zucchini flowering for seed production.
Organic fertilization in top dressing in jambu production
(2022-01-01) Nordi, Nicholas Taborda [UNESP]; Cardoso, Antonio Ismael Inácio [UNESP]; Alves, Thatiane Nepomuceno [UNESP]; de Moraes, Vinícius Pereira [UNESP]; de Carvalho, Joseantonio Ribeiro [UNESP]; Universidade Estadual Paulista (UNESP)
In the state of São Paulo, jambu has been grown with a view to its industrial uses. However, there are few works involving mineral nutrition and organic fertilization in jambu, which leads farmers to use fertilizer recommendations intended for other similar leafy crops and several different fertilizers. Thus, the objective of this study is to evaluate different sources of organic fertilizers in top dressing in the production of jambu under organic management. The experiments were carried out at the Experimental Farm of São Manuel, SP, and at the Zodíaco farm, located in the Demétria district, Botucatu, SP. Six treatments (organic fertilizers in top dressing: ferticel®, provaso, castor bean cake, bokashi, hoof and horn powder, and a control without top dressing) were evaluated, using a randomized block design with five replicates. From two harvests in each location, the following characteristics were evaluated: the fresh weight of vegetative parts (FWVP) and of inflorescences (FWI), the total fresh weight (TFW), the number of inflorescences (NI), and the average weight per inflorescence (AWI). The results show an increase of 158% and 78%; 103 and 101%; 143 and 86%; and 144 and 85%, in FWVP, FWI, NI, and TFW, respectively, with the use of hoof and horn powder (the best treatment, not differing from castor bean cake) compared to the control at Zodíaco farm and at the Experimental Farm of São Manuel, respectively. These results indicate that hoof and horn powder and castor bean cake were the best fertilizers in both harvests and locations, with higher production of both fresh and dry weight of the vegetative and reproductive parts of jambu.
Banana bunch cover: evaluation of promising bag materials
(2022-01-01) Sant’Anna Cordeiro da Silva, Marcela [UNESP]; Leonel, Sarita [UNESP]; Ferreira, Antonio Flávio Arruda; Souza, Jackson Mirellys Azevêdo [UNESP]; de Oliveira, Marcelo Almeida [UNESP]; Martins, Rafaelly Calsavara [UNESP]; Ferreira, Rafael Bibiano [UNESP]; de Souza Silva, Marcelo [UNESP]; Universidade Estadual Paulista (UNESP); Mato Grosso State University
Now days there has been an increase in the consumers demand for great food, produced in environmentally cost-effective and friendly processes, being increasingly necessary new cultivation techniques able to ensure the required standards for banana growers and consumers. Therefore, the research aimed to evaluate the effects of bunch cover materials on development and quality of ‘BRS Platina’ banana fruits. The experimental design was in randomized blocks, with six treatments, four replications and four plants per plot, being the treatments: WB – without bagging; BBTK – black polypropylene bag (TNT) + kraft paper; BBPK - black polyethilene bag + kraft paper; KP – kraft paper; WBT – non-woven polypropylene white bag (TNT) and WBP - white polyethylene plastic bag. The ‘BRS Platina’ banana bunches cover improved fruits quality and the treatment polyethylene white bag (WBP) can be an advantageous option for the banana growers because of its effectiveness on the reduction of damages caused by flowers thrips (Frankliniella spp), providing a good agronomic performance and also does not delay the harvesting.
Citrus crop performance and fruit quality in response to different scion-rootstock combinations
(2023-05-31) Martins, Rafaelly C. [UNESP]; Leonel, Sarita [UNESP]; Souza, Jackson M. A.; Leonel, Magali [UNESP]; Putti, Fernando F. [UNESP]; Züge, Patrícia G. U. [UNESP]; Ferreira, Rafael B. [UNESP]; Silva, Marcelo S.; Filho, Jaime Duarte; Universidade Estadual Paulista (UNESP); Universidade Federal de Viçosa (UFV); Faculty of Higher Education and Integral Training (FAEF); Dept. of Agriculture and Supply
Aim of study: To address diversification of citrus cultivars to increase the variety and profitability of orchards to adapt them to environmental changes. Area of study: State of São Paulo, a subtropical region of southeastern Brazil. Material and methods: The study evaluated the phenological intervals, thermal sum, vegetative and productive per-formance, and fruit quality of the sweet orange cultivars ‘Rubi’ (R), ‘Lue Gin Gong’ (LGG) and ‘Valencia Delta Seed-less’ (VDS) grafted onto 'Rangpur' lime (RL) and 'Swingle' citrumelo (SC). The field experiment was conducted over consecutive growing seasons 2018-2021. Main results: The duration of the phenological intervals was little influenced by the rootstocks. The harvest time was approximately 245 days after anthesis (DAA) for R, 402 DAA for LGG, and 407 DAA for VDS, regardless of rootstock. Scion cultivars grafted onto RL showed larger canopy volumes and greater weight, length, and diameter of fruits than those of SC trees, and the combinations with SC were more productively efficient than RL due to lower canopy volume. The R scion cultivar presented superior yield performance and fruit colouration than LGG and VDS. The physicochem-ical quality of the fruits showed improved results with the combinations of LGG/RL, LGG/SC, VDS/RL, and VDS/SC. Research highlights: These results may be useful when planning the diversification of scion/rootstock combinations for new orchards, identifying dual-market orange cultivars for industrial processing and natural consumption, and determining the combinations that are better adapted to undesirable climatic conditions.
Lychnophora pinaster in endangered campos rupestres: phenolic compounds and population ecogeography
(2023-01-01) Dos Santos, Dayane G. P. O. [UNESP]; Corrêa, Lilian C.; Silva, Júlio C. R. L. [UNESP]; Gomes, Jordany A. O. [UNESP]; Semir, João; Monge, Marcelo; Ming, Lin C. [UNESP]; Martins, Ernane R.; Zucchi, Maria I.; Hantao, Leandro W.; Sawaya, Alexandra C. H. F.; Marques, Marcia Ortiz M.; Universidade Estadual Paulista (UNESP); Instituto Agronômico; Universidade Estadual de Campinas (UNICAMP); Universidade Federal de Uberlândia (UFU); Universidade Federal de Minas Gerais (UFMG); Polo Regional de Desenvolvimento Tecnológico do Centro Sul
Lychnophora pinaster, known as arnica-mineira, is endemic to campos rupestres, at risk of extinction. The present study aimed to characterize the ecogeography and phenolic constituents of 11 L. pinaster populations collected in the mesoregions North, Jequitinhonha, Metropolitan of Belo Horizonte and Campos das Vertentes in the state of Minas Gerais, Brazil. Phenolic constituents were identified and quantified by Ultra-high performance liquid chromatography-mass spectrometry. Lychnophora pinaster occurs in sites at high altitude (700 and 1498 m), annual rainfall of up to 1455 m, soils with low fertility and predominantly loamy texture. Therefore, it can be considered tolerant to acidic soils, with low availability of nutrient. The most abundant substances in all populations were vitexin (18 – 1345 ng/g) and chlorogenic acid (60 – 767 ng/g). The 11 populations formed four groups in relation to the phenolic constituents, with group 1 consisting of the populations of the North Mesoregion (GM, OD) and Jetiquinhonha (DIMa), group 2, the Metropolitan of Belo Horizonte (SRM, NLSC, SM, RPS, CTRA), group 3, the North Mesoregion (ODMa and DI), and group 4, the Campos das Vertentes (CC). Among the populations, only those from the Metropolitan of Belo Horizonte showed correlation of soil properties with phenolic constituents.
Profile of Bioactive Compounds in Orange Juice Related to the Combination of Different Scion/Rootstocks, Packaging and Storage
(2023-03-01) Martins, Rafaelly Calsavara [UNESP]; Leonel, Sarita [UNESP]; Souza, Jackson Mirellys Azevedo; Lima, Giuseppina Pace Pereira [UNESP]; Leonel, Magali [UNESP]; Putti, Fernando Ferrari [UNESP]; Monteiro, Gean Charles [UNESP]; Züge, Patrícia Graosque Ülguim [UNESP]; Napoleão, Gabriel Maluf [UNESP]; Figueira, Ricardo [UNESP]; Filho, Jaime Duarte; Universidade Estadual Paulista (UNESP); Universidade Federal de Viçosa (UFV); Regional Development Coordination
Citrus scion/rootstock combinations alter the concentration of bioactive compounds in orange juice. The shelf life of freshly squeezed juice can be maximized through packaging and storage. The profiles of ascorbic (AA), dehydroascorbic acid (DHAA), and phenolic compounds were analyzed in juices of four sweet orange scions, Sanguínea de Mombuca (SM), Rubi (R), Lue Gin Gong (LGG), and Valência Delta Seedless (VDS), grafted onto ‘Rangpur’ lime (RL) and ‘Swingle’ citrumelo (SC) rootstocks. The juices obtained from the combination of the ‘Rubi’ orange in both rootstocks stood out by their higher concentration of ascorbic acid (AA) and dehydroascorbic acid (DHAA). Overall, all SC-grafted scions showed higher AA and DHAA and some phenolic compound concentrations. In all combinations, phenolic compounds showed the highest concentrations in the juices at the time of fruit extraction and decreased during storage. Dark packaging provided higher bioactive compounds in juices stored for longer periods. These findings can contribute to the diversification of scion/rootstock cultivars in order to increase the variety of orchards by choosing the best combinations for pasteurized orange juice with higher nutritional value.
Organic waste on survival and morphological parameters on stakes of Aloysia triphylla in the seasons.
(2018-01-01) Monteiro, Gean Charles [UNESP]; Schmidt, Denise; Caron, Braulio Otomar; Elli, Elvis Felipe; Universidade Estadual Paulista (UNESP); Universidade Federal de Santa Maria – Campus Frederico Westphalen; Universidade de São Paulo (USP)
The present study aimed to evaluate the influence of organic waste produced on small farms, on survival and morphological parameters on stakes of Aloysia triphylla in different seasons. The experiment was carried out from 1 June 2012 to 30 May 2013, in the forest nursery in the Federal University of Santa Maria (UFSM), Campus Frederico Westphalen-RS. The experimental design was randomized blocks in a factorial scheme 4x6, with four seasons (fall, winter, spring and summer) and six combinations of substrates (100% commercial substrate Plantmax®; 25% organic compound + 75% commercial substrate Plantmax®, 50% organic compound + 50% commercial substrate Plantmax®; 75% organic compound + 25% commercial substrate Plantmax®; 100% organic compound; Plantmax® 50% + 50% coconut substrate), and each treatment was composed of 3 replicates, with 10 seedlings each assessment. Treatment of 50% coconut substrate + 50% Plantmax® and 100% Plantmax® provided the greatest survival in plant propagation by cuttings in Aloysia triphylla, when compared to the other substrates tested. The most recommended seasons for production of Aloysia triphylla seedlings are summer and fall, and spring presented the worst results for the studied variables. The commercial substrate can be replaced by 25% for organic waste without compromising the quality of seedlings and up to 50% in the warm seasons (summer and fall).
Nutritional and technological properties of pulp and peel flours from different mango cultivars
(2023-01-01) Izidoro, Maiqui [UNESP]; Leonel, Magali [UNESP]; Leonel, Sarita [UNESP]; Lossoli, Nathalia Aparecida Barbosa [UNESP]; Cândido, Hebert Teixeira [UNESP]; Züge, Patrícia Graosque Ulguim [UNESP]; De Jesus Assis, Jaciene Lopes; Universidade Estadual Paulista (UNESP); Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Global mango production generates significant agricultural and industrial waste, including non-standard fruits and peels. Herein, flours obtained from the immature fruits of four mango cultivars (Haden, Keitt, Parwin, and Tommy Atkins) were characterized for their physicochemical properties with the goal of valorization as an ingredient in functional food products. Regardless of cultivar, the peel flours represented excellent sources of fiber, with notable calcium, magnesium, manganese, carotenoids, and antioxidant contents as well as high percentage of large particles and good water retention capacity. Pulp flours exhibit high starch content, light color, and fine granulometry. The mango cultivars strongly interfered with the differentiation of the mango peel and pulp flours. The results presented herein show that understanding the characteristics of flours obtained by processing different parts of the fruits of various cultivars can produce composite mango flours with different nutritional and technological properties, expanding their possible uses in food products and driving sustainable agricultural production in terms of efficient crop waste management.
Phytochemical profile of Brazilian grapes (Vitis labrusca and hybrids) grown on different rootstocks
(2022-10-01) da Silva, Marlon Jocimar Rodrigues; Paiva, Ana Paula Maia [UNESP]; de Souza, Joyce Fagundes; da Silva Padilha, Carla Valéria; Basílio, Letícia Silva Pereira [UNESP]; dos Santos Lima, Marcos; Pereira, Giuliano Elias; Corrêa, Luiz Claudio; Vianello, Fabio; Lima, Giuseppina Pace Pereira [UNESP]; Moura, Mara Fernandes; Tecchio, Marco Antonio [UNESP]; Petrolina; Universidade Estadual Paulista (UNESP); Bahia State University (UNEB); Federal Institute of Sertão Pernambucano; Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA); University of Padova (UNIPD); Agronomic Institute (IAC)
Important factors may influence the bioactive compounds in grapes, including scion–rootstock interaction. Therefore, the bioactive compounds and antioxidant activity in grape skin and pulp fractions of ‘Isabel Precoce’, ‘BRS Carmem’, ‘BRS Cora’, ‘BRS Violeta’ and ‘IAC 138–22 Máximo’ were assessed. These cultivars, from genetic improvement programs in Brazil, have good adaptation to subtropical and tropical climate conditions, and can be widely used by winegrowers aiming at adding value to the grape. All grapevines were grafted onto ‘IAC 766’ and ‘IAC 572’ rootstocks under tropical conditions in Brazil. The highest concentration of bioactive compounds was found in skins of ‘BRS Violeta’, followed by ‘IAC 138–22 Máximo’, both grafted onto ‘IAC 766’. There was a strong correlation between phenolic content and antioxidant properties, since antioxidant activity also decreased in the sequence: ‘BRS Violeta’ > ‘IAC 138–22 Máximo’ > ‘BRS Cora’ > ‘BRS Carmem’ > ‘Isabel Precoce’. Skin from hybrid grapes (‘BRS Violeta’, ‘IAC 138–22 Máximo’, ‘BRS Cora’ and ‘BRS Carmem’) grafted in both rootstocks contains higher levels of (poly)phenolic compounds and antioxidant activity than ‘Isabel Precoce’ (V. labrusca). Skin from ‘BRS Violeta’ grafted onto’IAC 766’ stand out from the others due to their high content of bioactive compounds.
Foliar salicylic acid application to mitigate the effect of water deficiency on potato (Solanum tuberosum L.)
(Elsevier, 2023-03-03) Acevedo, Andres Felipe Gaona [UNESP]; Lacerda, Vander Rocha [UNESP]; Gomes, Jonath Werissimo da Silva; Avilez, Alberto Mario Arroyo [UNESP]; Fernando, Broetto; Sarria, Saul Dussan; Vieites, Rogerio Lopes [UNESP]; Universidade Estadual Paulista (Unesp)
Water deficiency (WD) is one of the main factors that limit the growth and productivity of crops in the world. Salicylic acid (SA) is considered a plant hormone that has an important role in the plants’ growth, development, and tolerance to abiotic stress. There is a hypothesis that the application of SA could mitigate the impact of the physical stress in potato plants. From the imposition of WD the physiological and biochemical indexes, including the antioxidative defense system, were evaluated in potato plants treated with the foliar application of SA. The assay revealed that the moderate WD 45 kPa negatively affected the metabolic parameters in potato plants. Foliar application of SA presented positive effects in the mitigation of oxidative damage through the dismutation of reactive oxygen species (ROS), suggesting the protection of the cellular membrane structure. Furthermore, there was less accumulation of malondialdehyde and synthesis of bioactive compounds, which certainly increased the antioxidative capacity of the plants. In conclusion, the results indicate that the foliar application of SA can have a positive regulatory role in alleviate water deficiency stress in potato plants.
Maturation and Post-Harvest Resting of Fruits Affect the Macronutrients and Protein Content in Sweet Pepper Seeds
(2022-08-01) Colombari, Lidiane Fernandes [UNESP]; Chamma, Larissa [UNESP]; da Silva, Gustavo Ferreira [UNESP]; Zanetti, Willian Aparecido Leoti [UNESP]; Putti, Fernando Ferrari [UNESP]; Cardoso, Antonio Ismael Inácio [UNESP]; Universidade Estadual Paulista (UNESP)
There are few studies about the influence of fruit maturation and post-harvest resting on seed composition, which can be necessary for seedling development and future establishment. Thus, the objective of this study was to evaluate the effect of maturation and post-harvest resting of fruits on the macronutrient and protein content of sweet pepper seeds. The experimental design was a randomized block, with eight treatments, in a 4 × 2 factorial arrangement. The first factor was fruit maturation stages (35, 50, 65 and 80 days after anthesis), and the second, with and without post-harvest resting of the fruits for 7 days. The characteristics evaluated in seeds were the dry weight of one thousand seeds, macronutrient content, and content of albumin, globulin, prolamin and glutelin proteins. There were reductions in K, Ca and Mg content, and an increase in seed content of albumin, globulin and prolamins as a function of the fruit maturation stage. Post-harvest resting of the fruits provided higher Ca content and protein albumin in seeds. The decreasing order of macronutrients and protein content in seeds, independent of fruit maturation and resting stage of the fruits, was N > K > P > Mg > S > Ca, and albumin > globulin ≈ glutelin > prolamine, respectively.

Navegar

Submissões Recentes