Global Science and Technology最新文献

{"title":"BANCO DE SEMENTES DE PLANTAS DANINHAS EM SOLOS CULTIVADOS COM CULTURAS E PASTAGENS - 10.14688/1984-3801/gst.v7n2p63-73","authors":"A. Jakelaitis, I. S. Cardoso, Michellia Pereira Soares","doi":"10.14688/1984-3801/gst.v7n2p63-73","DOIUrl":"https://doi.org/10.14688/1984-3801/gst.v7n2p63-73","url":null,"abstract":"Objetivou-se nesta pesquisa quantificar o banco de sementes de plantas daninhas, assim como sua composicao, diversidade e similaridade em areas de culturas e pastagens. Foram coletadas amostras de solo nos seguintes ambientes: area cultivada com milho em plantio direto (I), area de pastagem de Urochloa brizantha formada apos o cultivo da soja em plantio direto (II), area de pastagem de U. brizantha com dez anos de uso (III), area de pastagem formada pelo consorcio de milho com U. brizantha (IV) e area de pastagem formada pelo consorcio de milho com Panicum maximum (V). Maior banco de sementes de plantas daninhas em relacao ao numero de individuos e a diversidade de especies foram obtidos no monocultivo de milho em plantio direto (I), seguido pelos ambientes IV, V, III e II. Onde houve o cultivo de forrageiras, o banco de sementes de plantas daninhas foi menor. Em todos os ambientes, a diversidade de especies foi baixa, a equitabilidade alta e o indice de similaridade mediano entre os ambientes.","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130754355","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}

{"title":"AVALIAÇÃO DO CONTROLE DE OÍDIO DO MELOEIRO RENDILHADO UTILIZANDO BIOFERTILIZANTE E SORO DE LEITE BOVINO -10.14688/1984-3801/gst.v7n2p8-14","authors":"A. J. D. Silveira, D. R. Amaral, Larissa Nogueira de Souza","doi":"10.14688/1984-3801/gst.v7n2p8-14","DOIUrl":"https://doi.org/10.14688/1984-3801/gst.v7n2p8-14","url":null,"abstract":"O melao ( Cucumis melo L.) e uma importante hortalica cultivada no Brasil, sendo o oidio ( Sphareoteca fuliginea) capaz de reduzir sua producao. O objetivo do trabalho foi avaliar o controle do oidio do meloeiro rendilhado cultivado em casa de vegetacao com biofertilizante e soro de leite bovino em diferentes dosagens. O delineamento experimental foi em blocos ao acaso, com 8 tratamentos e 3 repeticoes. Os tratamentos foram: testemunha (sem aplicacao); aplicacao de fungicidas (fungicidas alternados - enxofre 80: 200 g ha -1 ; tiofanato metilico 700: 70 g100 L -1 de agua; azoxistrobina 50: 8 g100 L -1 de agua), biofertilizante 50 e 100% e soro de leite nas doses de 25, 50, 75 e 100%. Dentre os resultados, foi observado que o soro de leite bovino proporcionou protecao contra oidio, sendo de 30% quando comparada a testemunha e em relacao ao fungicida a melhor dose de soro proporcionou 10% mais severidade de oidio. A aplicacao de biofertilizante e doses de soro de leite bovino, menores que 100% nao proporcionaram diminuicao na severidade do oidio na cultura do melao rendilhado.","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130021651","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}

{"title":"CARACTERIZAÇÃO BIOMÉTRICA DE FRUTOS DE MACAÚBA EM DIFERENTES ESTÁDIOS DE MATURAÇÃO, PROVENIENTES DE DUAS REGIÕES DO ESTADO DE MINAS GERAIS - 10.14688/1984-3801/gst.v7n2p15-23","authors":"José Maria Gomes Neves, A. A. Brandão, Humberto Pereira da Silva, Paulo Henrique Continho, César Fernandes Aquino, Julia Fontes, D. Brandão","doi":"10.14688/1984-3801/gst.v7n2p15-23","DOIUrl":"https://doi.org/10.14688/1984-3801/gst.v7n2p15-23","url":null,"abstract":"Objetivou-se com este trabalho estudar a caracterizacao biometrica dos constituintes dos frutos (epicarpo, mesocarpo e endocarpo) de macauba em diferentes estadios de maturacao, oriundos de duas regioes do estado de Minas Gerais. Os frutos de macauba foram selecionados e classificados de acordo como estes foram encontrados no estadio de maturacao fisiologica: Imaturo, Maduro e Deteriorado. Foram feitas as medicoes (DEL e DEE) e a pesagem das diferentes partes do fruto. Utilizou-se o delineamento experimental inteiramente casualizado, em esquema fatorial 2 x 3 x 3 (2 localidades de coletas dos frutos; 3 estadios de maturacao dos frutos e as 3 partes que constituem o fruto de macauba - epicarpo, mesocarpo e endocarpo + amendoa.). Os dados da porcentagem das caracteristicas biometrica foram submetidos a analise de variância e as medias comparadas pelo teste de Scott – Knott a 1 % de probabilidade.  Evidenciou-se que os frutos de macauba coletados na regiao de Brasilia de Minas apresentaram as melhores caracteristicas biometricas e rendimento de polpa quando coletados no estadio imaturo, enquanto que na regiao de Matozinhos essas caracteristicas biometricas dos frutos se expressaram no estadio de maturacao maduro.","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124332903","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}

{"title":"Substituição Parcial da Forragem pelo Caroço de Algodão: Desempenho e Cinética Ruminal","authors":"M. Lima, Wilson Roberto Soares Mattos, L. G. Nussio, Eduardo Rodrigues de Carvalho, Flávio Geraldo Ferreira Castro, A. Amaral","doi":"10.14688/1984-3801/GST.V7N1P140-154","DOIUrl":"https://doi.org/10.14688/1984-3801/GST.V7N1P140-154","url":null,"abstract":"","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128865304","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}

{"title":"Impactos do Pisoteio Ovino nos Atributos Físicos do Solo em Área de Coqueiro-Anão Irrigado, na Região do Semiárido Paraibano","authors":"E. B. P. Junior, J. S. Souto, Patrícia Carneiro Souto, Oscar Mariano Hafle","doi":"10.14688/1984-3801/GST.V7N1P48-55","DOIUrl":"https://doi.org/10.14688/1984-3801/GST.V7N1P48-55","url":null,"abstract":"","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121878069","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}

{"title":"Avaliação da Qualidade e Produtividade da Cenoura com Diferentes Densidades de Plantio","authors":"C. Júnior, J. M. Oliveira, L. Mota","doi":"10.14688/1984-3801/GST.V7N1P1-6","DOIUrl":"https://doi.org/10.14688/1984-3801/GST.V7N1P1-6","url":null,"abstract":"The performance of a carrot crop depends on several factors including the density of planting. The aim of this study was to evaluate the effect of different planting densities on carrot growing in length, diameter, weight per unit and produção/m 2 . The study was conducted at Farm Santo Antonio, in the municipality of SponsorshipMG in 2011. The experiment was conducted in randomized blocks with five treatments and five replications in a floor area of 25m2, with the treatment plant densities 10, 8, 6, 4 and 3 cm between plants. The spacing adopted was 25 cm. As they increased the planting density was decreased in length and root diameter and weighing. Productivity density of 8 cm between plants showed the highest mean of 6.68 kg/m 2 . The increase in the density of planting carrot results in an increase in length and root diameter and weight per unit and to a certain limit is the compensation of the total production by raising the number of plants. The best density cultivation of carrot cultivar \"Brasilia\", considering the quality of trade, 6 and 8 cm between plants.","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"293 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117348643","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}

{"title":"Caracterização Química e de Tortas de Mamona de Processos de Produção de Biodiesel","authors":"Samuel de Deus da Silva, Helen Botelho Marota, Rafael Antônio Presotto, Everaldo Zonta","doi":"10.14688/1984-3801/GST.V7N1P56-66","DOIUrl":"https://doi.org/10.14688/1984-3801/GST.V7N1P56-66","url":null,"abstract":"The castor bean pie is a residue or byproduct of biodiesel production directly from seed (PDS). The generation of the press cake occurs in large quantities, thence the need of destination that material. To destine a residue is necessary to perform its chemical characterization. Given the above, the objective of this study was to characterize chemically the castor press cake PDS compared with castor press cake commercial, and evaluate the variability of the seeds and pie in each lot. For that, representative samples were collected and sent for analysis at an accredited laboratory. Besides, it was determined the most limiting elements and promising material, and also the variability of element contents in different lots of seeds and respective pie. The values observed were compared to the maximum allowed by legislation in the country. Sodium is the more limiting element for using the press cake as organic fertilizer, due to the harm it can cause to plants and soil. Also, the elements or substances aluminum, cadmium, iron, manganese, total phenols, and surfactants are above the maximum value permitted. The castor press cake PDS was classified as a Class II A residue.","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130479397","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}

{"title":"Influência do Arranjo Espacial do Milheto em Relação aos Estádios Fenológicos e Unidades Térmicas","authors":"A. Costa, R. Priesnitz","doi":"10.14688/1984-3801/GST.V7N1P37-47","DOIUrl":"https://doi.org/10.14688/1984-3801/GST.V7N1P37-47","url":null,"abstract":"","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134218192","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}

{"title":"Reação de Cultivares de Girassol (Helianthus annuus L.) a Meloidogyne incognita Raça 3 e Meloidogyne javanica","authors":"C. Silva, R. A. Silva, W. G. Vale, A. Mello","doi":"10.14688/1984-3801/GST.V7N1P7-15","DOIUrl":"https://doi.org/10.14688/1984-3801/GST.V7N1P7-15","url":null,"abstract":"The sunflower crop is growing on the national scene, but there are many pathogens that can become limiting for the production, among them are the gall-forming nematodes, which are spread in almost all agricultural regions of the country. This work aimed to assess the reaction of sunflower cultivars to nematodes Meloidogyne incognita race 3 and M. javanica. At 88 days after inoculation, proceeded to the evaluation considering the average number of eggs per gram of the root (MNGR), the average total number of nematode eggs per treatment and J2 (MNNOT) and numbers of eggs per treatment (MNOT) thereby determining the multiplication in relation to the initial inoculation. The okra cv. Santa Cruz (Abelmoschus esculentus (L.) Moench) and Crotalaria breviflora were used as witness of susceptibility and resistance respectively. The four cultivars behaved as hosts because they showed higher values of nematodes. The Cultivar Agrobel 960 present (MNNOT) and (MNOT) of M. javanica less than to witness and in relation to other cultivars.","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129314598","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}

{"title":"Substituição Parcial da Forragem pelo Caroço de Algodão: Comportamento Ingestivo e Consistência da Camada Flutuante da Digesta Ruminal","authors":"M. Lima, Wilson Roberto Soares Mattos, L. G. Nussio, Eduardo Rodrigues de Carvalho, Flávio Geraldo Ferreira Castro, A. Amaral","doi":"10.14688/1984-3801/GST.V7N1P129-139","DOIUrl":"https://doi.org/10.14688/1984-3801/GST.V7N1P129-139","url":null,"abstract":"The objective of this study was to determine the effects of the partial substitution of forage neutral detergent fiber (NDF) with whole or processed cottonseed NDF on feeding behavior and ruminal mat consistency of lactating Holstein cows cannulated in the rumen, which were assigned in a 6×6 Latin square design during 90 days. Two control diets were utilized, one with low (LFD = low forage diet) and another one with high (HDF = high forage diet) forage NDF (fNDF), which represented respectively the negative (16% fNDF; DBF) and positive (21% fNDF; DAF) controls. Four experimental rations were balanced to contain 16% fNDF and 5% NDF from whole or processed cottonseed. There was a reduction (P<0.05) in the times spent with rumination and mastication in the cottonseed diets compared with the 21% fNDF diet (DAF). There was no effect (P>0.05) of the partial substitution of fNDF with cottonseed NDF on ruminal mat consistency. Taking into account the feeding behavior as a criterion of evaluation, the effectiveness of cottonseed NDF was lower than the 21% fNDF diet (DAF), however, considering the ruminal mat consistency as a way of assessment, the effectiveness of cottonseed NDF was similar to the forages utilized in the present study. The ways of processing did not alter the effectiveness of cottonseed NDF. Key-words: effective fiber, lint, mastication 1 Universidade Federal de Goiás, Escola de Veterinária e Zootecnia, Campus II, Samambaia. 2 Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Departamento de Zootecnia. 3 Instituto Federal de Educação, Ciência e Tecnologia Goiano Campus Iporá Avenida Oeste s/n, saída para Piranhas – Iporá/GO – CEP: 76.200-000 Fone:(64) 3674-0400. *E-mail: eduardo.carvalho@ifgoiano.edu.br. Autor para correspondência. 4 AGROCRIA Comercio e Indústria LTDA. 5 Universidade Estadual de Goiás, São Luis de Montes Belos. Recebido em: 23/01/2014. Aprovado em: 25/04/2014. M. L. M. Lima et al. Gl. Sci Technol, Rio Verde, v. 07, n. 01, p.129 – 139, jan/abr. 2014. 130","PeriodicalId":280582,"journal":{"name":"Global Science and Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115498971","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}