Adriano Suchoronczek, Sidnei Osmar Jadoski, R. V. Botelho, J. D. Santos, A. Camacho
{"title":"Efeito de épocas de colheita e tempo de armazenamento de tubérculos de batata sobre características de qualidade pós-colheita","authors":"Adriano Suchoronczek, Sidnei Osmar Jadoski, R. V. Botelho, J. D. Santos, A. Camacho","doi":"10.5935/PAET.V9.N1.05","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.05","url":null,"abstract":"The phases of harvest and postharvest determining the final potato tubers quality. The season of harvest and the time that the tubers remain stored can affect several factors such as the occurrence of disease, susceptibility of the tubers to mechanical damage y physicochemical quality of tubers. The aim of this research was study two potato cultivars as your answer on the physicochemical characteristics to different harvest seasons and storage times. The cultivars studied were Agatha and Atlantic. The treatments consisted of four harvest seasons (14, 28, 42 and 56 days after desiccation) and 4 storage times (0, 14, 28 and 42 days) in factorial arrangement 4x4. We evaluated the soluble solids, firmness of pulp, the pulp pH, titratable acidity, dry matter content and weight loss. The increase in storage time and delayed harvest reduced fruit firmness in both cultivars and increased the soluble solids. The weekly weight loss showed reduction with increasing the storage period and increased with the delay in harvest. The dry matter content, the pulp pH and titratable acidity were not affected by the harvest season or storage periods.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"24 1","pages":"45-53"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87380216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniel Pena Pereira, É. A. Moreira, J. C. O. Silva, Mayara C. Prado, Beatriz de Nadai Gasparini
{"title":"Adventitious rooting of cuttings of Varronia curassavica Jacq. with use of indol butyric acid","authors":"Daniel Pena Pereira, É. A. Moreira, J. C. O. Silva, Mayara C. Prado, Beatriz de Nadai Gasparini","doi":"10.5935/PAET.V9.N1.11","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.11","url":null,"abstract":"This work studied the need for the use of exogenous auxinindole-butyl acid (IBA) on rooting cuttings of Varronia curassavica Jacq. The experiment was conducted in a greenhouse, with partial control of temperature and humidity in the experimental area of Horticultural sector of the Federal Institute of Education, Science and Technology (IFTM) in Uberaba, MG, Brazil. It has been evaluated the effects of different AIB doses in the rooting process of cuttings (0, 200, 400, 600, 800 e 1000 mg L-1), then planted in plastic tubes containing a mixture of sand and vermiculite in-house-vegetation. The experimental design was a randomized block with six quantitative treatments and four replications, totaling 24 experimental units. After 65 days, were evaluated the rooting by the survival rate of cuttings and statistical analysis was performed using regression analysis. The best dose of IBA hormone for rooting cuttings, for the largest number of sprouting, was 223 mg L-1, by adjusting the degree of model 2. For other doses, do not differ significantly from the control. It is concluded that can be carried out efficiently rooting of the Varronia curassavica Jacq. at a dose of 223 mg L-1 IBA, in semi controlled environmental conditions.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"40 1","pages":"113-119"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90601827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. C. Fernandes, C. Gamero, J. G. L. Rodrigues, F. M. Nascimento
{"title":"Evaluation of different management systens in the development of the culture of suflower","authors":"J. C. Fernandes, C. Gamero, J. G. L. Rodrigues, F. M. Nascimento","doi":"10.5935/PAET.V9.N1.08","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.08","url":null,"abstract":"Abstract The aim of this study was to evaluate the influence of management systems and identify the speed of seeding operation that allows better development of the sunflower. The experiment was installed in Fazenda Experimental Lageado, belonging to Faculdade de Ciencias Agronomicas of UNESP, Botucatu campus. The experimental design was randomized blocks, following the diagram in subdivided parcels, with four replicates. The treatments performed on the parcels were: the soil management systems (no-tillage system with scarifier shank type engine-NTs; no-tillage system with double-disk type scarifier mechanism NTd; miniumum tillage-MT and conventional tillage-CT). In the subplots, the speeds used for seeding were 3; 5; 6 and 8 km h-1. The variables analyzed were: initial and final population of plants, plant height, stem diameter, and productivity of achenes. The NTs treatment is the management system recommended for deployment of culture and the development of commercial hybrid sunflower Helio 358. The increased speed in the seeding operation compromises the population of plants and, consequently, the development of culture.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"43 1","pages":"73-82"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78296465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. M. D. Santos, Luziano Lopes da Silva, P. Ramos, D. P. Cardoso, Daniele de Cássia Vieira de Sousa
{"title":"Weed interference on radish crop","authors":"V. M. D. Santos, Luziano Lopes da Silva, P. Ramos, D. P. Cardoso, Daniele de Cássia Vieira de Sousa","doi":"10.5935/PAET.V9.N1.02","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.02","url":null,"abstract":"This study aimed to evaluate the effect of different periods of weed coexistence with radish culture. The experiment was carried out in Gurupi-TO, in a randomized block design with four replications. The treatments consisted of 6 increasing periods of coexistence with weeds, considered from the rough, valued at five seasons assessments (5, 10, 15, 21, and 30 DAE). Dry stem masses were evaluated, leaf and total shoot, leaf area, root diameter and fresh root biomass. The data were submitted to analysis of variance to compare means by the Scott and Knott test. It was observed that longer periods of coexistence with weeds caused a reduction of 72.1% in the production of fresh weight root culture. Living with weeds up to 15 days after emergence did not significantly alter the radish root diameter in this study.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"28 1","pages":"17-25"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85829756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guilherme Augusto Bertelli, Sidnei Osmar Jadoski, Murilo da Luz Dolato, L. Rampim, M. F. Maggi
{"title":"Desempenho da plantabilidade de semeadoras pneumática na implantação da cultura da soja no cerrado piauiense - Brasil","authors":"Guilherme Augusto Bertelli, Sidnei Osmar Jadoski, Murilo da Luz Dolato, L. Rampim, M. F. Maggi","doi":"10.5935/PAET.V9.N1.10","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.10","url":null,"abstract":"Abstract The identification of limit speed to make the sowing is important to take advantage of machines with pneumatic system, but is also necessary maintain adequate plantability. Faced with this problem, the objective of this study was to evaluate the performance of plantability of the pneumatic seeders in soybean implantation in Piaui cerrado (savanna). The study was conducted in the municipality of Baixa Grande do Ribeiro, southern Piaui state. The experiment was arranged in a completely randomized design (CRD) in factorial arrangement (2x4), with three replications. Therefore, the first factor was compound by models seeders John Deere® (BT2117 and DB740) and the second factor, by four forward speeds of the seeder during operation (V1 = 5,6 km h-1, V2 = 7,0 km h-1, V3 = 8,6 km h-1 e V4 = 10,0 km h-1). The plantability was evaluated by checking the number of plants / seeds distributed with seeders, uniformity of planting, spacing acceptable, flawed and double between plants. In seeder John Deere® model 2117, with increased speed seeding of 5.6 km h-1 to 10.0 km h-1, the number of plants per linear meter is close to the established regulation of the machine. As for the seeder John Deere® DB74 model, the plant number value is lower than expected, with an average of 8.76 plants m-1, (possible result failed regulation / machine calibration before installing the experiment). For both seeders, the percentage of acceptable spacings decreases as increases the travel speed, and flawed spacing increase with increase in speed, thus reducing the uniformity of planting.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"15 1","pages":"91-103"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85671301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Graziely Godoy, D. D. Castagnara, P. D. Oliveira, L. Rampim, P. Lima
{"title":"Propriedades físicas do solo e desempenho da soja em sucessão à aveia sob diferentes manejos","authors":"Graziely Godoy, D. D. Castagnara, P. D. Oliveira, L. Rampim, P. Lima","doi":"10.5935/PAET.V9.N1.07","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.07","url":null,"abstract":"Abstract The aim of the study was to evaluate the physical properties of soil, yield components and soybean yield in succession to oat with and without grazing animal in the autumn winter period in western Parana. The experimental design was randomized blocks in tracks scheme with split plots and three replications. The plots consisted of six types of soil uses cultivated with oat (Avena sativa): grazings with residual heights of 10 and 20 cm, cuts to haying with residual heights of 10 and 20 cm, direct seeding, conventional tillage and subplots the sowing of soybean (Vmax cultivars and CD 215). The soil management without grazing and cuts to seeding direct and no grazing or cuts for conventional tillage reflected in greater deposition of straw of oats, and higher macroporosity in 10-20 cm layer when performed in conventional tillage. The density of soil was lower in both layers, when the system without no grazing or cuts in conventional tillage was used. The exploration of livestock farming during the autumn winter period, maintaining a straw residue of at least 10 cm does not compromise the components of production or productivity soybeans in succession, maximizing the use of soil and enabling the use of the animal grazing.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"10 1","pages":"65-72"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75175501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. A. Marchese, Adriano Suchoronczek, João Carlos Civieiro, Clodomir Luiz Ascari, Katiane Fedrigo
{"title":"Efeito do trinexapac-etil associado a adubação nitrogenada elevada e parcelada na produtividade do trigo cultivar BRS-220","authors":"J. A. Marchese, Adriano Suchoronczek, João Carlos Civieiro, Clodomir Luiz Ascari, Katiane Fedrigo","doi":"10.5935/PAET.V9.N1.12","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.12","url":null,"abstract":"The use of high nitrogen doses, associated with the application of growth reducers, can be an alternative to wheat plants express high productive potential without the occurrence of lodging. For this reason, the aim of this study was to evaluate the effect of trinexapac-ethyl growth reducer associated with high and split nitrogen fertilization on yield and its components in wheat cultivar BRS 220. The experimental design was randomized blocks with two treatment and four replications, compose with the application of 110 kg N ha-1 with or without 0,4 g L-1 of trinexapac-ethyl. It was evaluated yield and its components, stem diameter, length of internode, plant height and stem length and the averages were submitted to Student t-test using Systat 13®. The application of the growth retardant contributed to a significant increase in yield and stem diameter of the plants, besides the reduction of height and length of stem and internode, when compared to the treatment without product application.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"44 1","pages":"105-111"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82133765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Édina Cristiane Pereira Lopes, A. Moraes, Claudete Reisdorfer Lang
{"title":"Estudo do fracionamento isotópico de nitrogênio aplicado à gramíneas e leguminosas forrageiras","authors":"Édina Cristiane Pereira Lopes, A. Moraes, Claudete Reisdorfer Lang","doi":"10.5935/PAET.V9.N1.13","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.13","url":null,"abstract":"Resumen Los estudios de la composicion isotopica del nitrogeno en el suelo y las plantas son importantes para identificar las diferencias en los procesos biogeoquimicos de reciclage de este elemento en los ecosistemas. Para evaluar la contribucion de BNF, asi como las diferencias en la capacidad de fijar y transferir N entre las especies de legumbres perennes y gramineas existen varias tecnicas que se han utilizado, como la reduccion de acetileno, dilucion isotopica 15N y abundancia natural de 15N. Sin embargo, las caracteristicas responsables por estas variaciones tienen que ser, en gran parte identificadas. Esta revision tuvo como objetivo comparar la dinamica de la transferencia y la fijacion de N de gramineas y leguminosas forrajeras.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"11 1","pages":"121-130"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82325834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Rinaldi, H. C. Fernandes, M. M. Teixeira, P. Cecon, C. B. Alvarenga
{"title":"Condições de tração dos tratores agrícolas fabricados e comercializados no Brasil","authors":"P. Rinaldi, H. C. Fernandes, M. M. Teixeira, P. Cecon, C. B. Alvarenga","doi":"10.5935/PAET.V9.N1.09","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.09","url":null,"abstract":"In Brazil today, beyond there is no mandatory testing center, there are few studies aiming to determine the performance of agricultural tractors. Performance tests of the specimens are made by manufacturers, and because the official reports disclosure is not required, consumers have information only from the own manufacturer. Thus, this study aimed to evaluate the performance the conditions tractor of the agricultural tractors with manufactured and/or sold tires in Brazil in relation to power ranges and type of traction. To do so, from 191 agricultural tractors, we calculated the following parameters maximum traction force at DB and relative traction force/weight. Some ofthese parameters were evaluated under different soil and ballast conditions. The results showed that the power range 147 kW and 4x2 TDA traction type present the best values for estimated maximum traction power. It can be concluded that the maximum traction force is higher for the range tractors 147 kW, power over and traction type 4x2 TDA backed.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"3 1","pages":"83-89"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87934490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joelmir Augustinho Mazon, L. F. Watzlawick, Jey Marinho de Albuquerque, L. Zerbielli
{"title":"Diametric structure of six areas in faxinal of mixed ombrophilous rainforest","authors":"Joelmir Augustinho Mazon, L. F. Watzlawick, Jey Marinho de Albuquerque, L. Zerbielli","doi":"10.5935/PAET.V9.N1.06","DOIUrl":"https://doi.org/10.5935/PAET.V9.N1.06","url":null,"abstract":"El analisis de la distribucion de diametros se presenta como una herramienta util para comprender el nivel de sucesion y conservacion en el que un bosque se encuentra. Este estudio se realizo en areas de bosque Ombrofila mixta bajo historia de sistema faxinal, el uso y la conservacion distinta ubicados en dos municipios del Estado de Parana. Se analizaron todos los arboles con DAP ≥ 10 cm en dos parcelas permanentes instaladas en Turvo-PR, siendo uno con dos hectareas en sistema silvopastoril (FDSP) y un CON 1.8 ha en un bosque secundario (FDSP) y cuatro en el sistema faxinal situado en Reboucas-PR, identificado por las siglas FMB, FMC, FDS, FBB, todos con una superficie de una hectarea. Para la distribucion de diametro se utilizaron 9 clases diametrales con un intervalo de 10 cm. El area FDSF mostro una mayor densidad de individuos y una mayor diversidad de especies, mientras que las otras areas mostraron una menor densidad y riqueza. Todas las areas del estudio mostraron una distribucion diametral en exponencial negativa ( \"J invertida\") y DAP promedio entre 26,8 y 19,8 cm, donde FMB y FDSP presentaran individuos mejores distribuidos entre las clases de diametro, mientras que el FDS tiene la grande mayoria de los individuos concentrados en las clases de menor diametro. El analisis de la flora en conjunto con la distribucion de diametros mostro que cada sitio presenta unas caracteristicas intrinsecas resultantes principalmente del grado de intervencion humana utilizado en cada lugar.","PeriodicalId":42771,"journal":{"name":"Applied Research & Agrotechnology","volume":"25 1","pages":"55-63"},"PeriodicalIF":0.0,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87285650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}