Bacharelado em Agronomia (UAST)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2927
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
Navegar
2 resultados
Resultados da Pesquisa
Item Ácido giberélico na conservação pós-colheita de frutos de umbuzeiro (Spondias tuberosa Arruda Câmara) em condição refrigerada(2019-07-09) Oliveira, Francisco Jardel Moreira de; Ataíde, Elma Machado; http://lattes.cnpq.br/2422663252620574; http://lattes.cnpq.br/7543700066092948The umbuzeiro is a native species of Caatinga, it has as fruit the umbu, with great social and economic importance for the Northeastern region of Brazil. The umbu has great acceptance in the market for in natura consumption and of products such as popsicles, jellies and sweets, however, the absence of post-harvest technologies to preserve this fruit causes that much of the harvest is lost. An alternative to increasing the shelf life of umbu is the use of refrigeration associated with regulators such as gibberellic acid (GA3), which acts to reduce the rate of respiration and inhibit the synthesis of ethylene in post-harvest. In this sense, the objective of this study was to evaluate different concentrations of GA3 in the post-harvest conservation of umbu in refrigerated conditions, based on the attributes of fruit quality. The fruits were harvested manually at maturation stage " for once", immediately washed and sanitized in 2% (w/v) sodium hypochlorite solution, dried in ambient condition and selected for size, appearance and physical damage. Then, the following treatments were performed: T1: 0 mgL-1 (Witness), T2: 10 mgL-1 of GA3, T3: 20 mgL-1 of GA3 and T4: 30 mgL-1 of GA3. The fruits were immersed for 60 seconds, dried in ambient condition and conditioned in refrigerated condition. The experimental design was completely randomized, with plots subdivided in time, the plots consisted of the four concentrations of GA3 and the subplots for storage time (0, 5, 10 and 15 days), except for mass loss, with evaluation three days. Five replicates with 5 fruits were used for each subplot, totaling 100 fruits per plot. The data were submitted to analysis of variance and when significant, the Tukey test was applied at 5% for the concentrations of GA3 and the regression analysis to the subplots. The attributes of quality evaluated were: length, diameter and shape of the fruit; weight loss; weight and yield of pulp; fruit mass, bark and seed; yield of pulp and seed; soluble solids, titratable acidity; pH; ratio and technological index. The concentrations of gibberellic acid did not present significant interference with the physical attributes of umbuzeiro fruits in refrigerated conditions, except for pulp mass and pulp yield, which presented the best results for GA3 20 and 30 mgL-1 concentrations. The weight loss of the fruits did not differ from the control among the applied treatments, being the highest loss obtained in the concentration of 30 mgL-1 of GA3. The storage time was the factor of greater interference on the physical-chemical attributes, however, for the ratio, there is interference of GA3 concentrations up to the 10th day of storage. There is a need for further investigation regarding the use of GA3 in the post-harvest conservation of umbu, with test of other concentrations and immersion time in order to prove the efficiency of this regulator in the maintenance of post-harvest life of umbu in refrigerated condition.Item Caracterização fenológica e qualidade de frutos de umbuzeiro em clima semiárido do estado de Pernambuco(2019-07-10) Dores, Tamires Eduvirgem das; Ataíde, Elma Machado; http://lattes.cnpq.br/2422663252620574; http://lattes.cnpq.br/5487942250380238Umbuzeiro (Spondias tuberosa Arruda Câmara) is a species belonging to the Anacardiaceae family, endemic to the Brazilian semiarid region, and there are no reports of its occurrence in other regions of the planet. The plant has great socio-environmental and economic importance for the Caatinga biome, as it survives very well the hostile conditions of the semiarid climate. However, studies with this fruit are scarce in all areas of research. Notably with regard to its phenological behavior and fruit quality, this study aimed to characterize the phenological stages and fruit quality of umbuzeiro in semiarid climate of the state of Pernambuco. The experiment was carried out with umbuzeiro culture, from November 2017 to April 2018, using three adult accessions, located in the Mata da Pimenteira State Park, Serra Talhada-PE. The physical and physicochemical characterization of the fruits was carried out at the Chemistry Laboratory of the Federal Rural University of Pernambuco of the Serra Talhada Academic Unit. Data were obtained from INMET and evaluated using descriptive statistics, where each value represents the means and standard deviation for the variables studied per plant and the simple correlation between the duration of each phenological stage (in days) and each variable in the period. of the study. To evaluate the umbuzeiro phenology in the 2017/18 agricultural cycle, we evaluated the number of days from flowering to fruiting, followed by the number of days from fruiting to harvest. The curve and rate of fruit growth were also analyzed. For fruit quality assessments the following physical attributes were determined: Diameter (mm), length (mm), shape, mass (g) and fruit yield (%), pulp, rind and stone. For the physicochemical attributes it was determined: the soluble solids content (SS%) and technologist index. Under Pernambuco semi-arid conditions, the average number of days between fruit formation and harvest for the three evaluated accessions was approximately 129.3 days and the average period between floral anthesis and fruit formation was 3.5 days. . The curve representing umbus growth had sigmoidal behavior. Regarding quality attributes, access three presented the highest pulp yield (72.63% ± 2.46%), while access two presented the lowest value (65.56% ± 5%). , 62%). The average soluble solids content for fruits of the three accessions was 14.33%. There is potential for commercialization of fruits from the accesses of umbuzeiros studied in the fresh fruit market. Because it is a fruit tree that can be economically exploited and has a high production potential under semi-arid conditions, it is a great alternative to improve the income of family farmers who produce under rainfed conditions, justifying the need for greater attention to culture. Given this, it is understood that to have commercial exploitation of the culture of umbuzeiro, it is necessary to promote the conduction of more research, capable of generating information that reaches the target population