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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Dano Mecânico em Sementes de Soja Causado pelo Uso de Graneleiro no Transporte Durante a Colheita / Mechanical Damage in Soybean Seed Caused by the Use of the Bulk Carrier in the Transportation During Harvest

Albaneze, Rodrigo 15 December 2014 (has links)
Submitted by Maria Beatriz Vieira (mbeatriz.vieira@gmail.com) on 2017-03-03T16:31:15Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) dissertacao_rodrigo_albaneze.pdf: 566039 bytes, checksum: 895fe9d687612ba7309af94cad320bff (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-03-09T20:13:46Z (GMT) No. of bitstreams: 2 dissertacao_rodrigo_albaneze.pdf: 566039 bytes, checksum: 895fe9d687612ba7309af94cad320bff (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-03-09T20:15:07Z (GMT) No. of bitstreams: 2 dissertacao_rodrigo_albaneze.pdf: 566039 bytes, checksum: 895fe9d687612ba7309af94cad320bff (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-03-09T20:15:16Z (GMT). No. of bitstreams: 2 dissertacao_rodrigo_albaneze.pdf: 566039 bytes, checksum: 895fe9d687612ba7309af94cad320bff (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2014-12-15 / Sem bolsa / O dano mecânico constitui em um dos fatores limitantes à produção de sementes de soja de alta qualidade. O objetivo do trabalho foi avaliar o dano mecânico causado na semente de soja, ao se utilizar a graneleiro transportador com sistema de descarga por caracol, como meio de transporte da colhedora para o caminhão, durante a colheita. Os levantamentos foram realizados em duas lavouras de produção de sementes de cooperados da C.Vale Cooperativa Agroindustrial, localizada em Abelardo Luz - SC. Acompanhou-se a colheita das sementes das cultivares CD 202 RR e BMX Turbo RR. Coletaram-se amostras das sementes colhidas em três diferentes horários (10:00, 12:30 e 16:00 horas) e em três locais (no depósito da colhedora, no graneleiro transportador e no caminhão). Utilizou-se o delineamento inteiramente ao acaso, com dois fatores (local de colheita em 3 níveis e horário de colheita em 3 níveis), com quatro repetições. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey em nível de 5 % de probabilidade. Avaliaram-se a percentagem de sementes quebradas (bandinhas), teor de água, dano mecânico no tegumento (hipoclorito) e germinação. O uso do equipamento auxiliar graneleiro transportador contribui para o aumento na incidência de sementes quebradas de soja, porém não interfere de forma direta na germinação do lote. A redução de umidade da semente no momento da colheita resulta em incremento de danos mecânicos imediatos e consequente diminuição do aproveitamento de sementes. Danos mecânicos em sementes de soja são cumulativos e a severidade varia com a cultivar. Sementes de soja maiores tendem a sofrer danos mecânicos mais graves do que sementes menores. / The mechanical damage is one of the limiting factors of soybean production. The objective of this study was to evaluate the mechanical damage in soybean seed when using the bulk carrier truck, with discharge by spiral system, as a means of transportation from the harvester to the truck, during harvest. The surveys were conducted in two seed production fields belonged to members of C.Vale Cooperativa Agroindustrial, located in Abelardo Luz - SC. Was monitored the harvest of the seeds of cultivars CD 202 RR and BMX Turbo RR. Samples were collected from seeds harvested at three different times (10:00 a.m, 12:30 p.m and 04:00 p.m) and in three places (in the bulk carrier of the harvester, in the bulk carrier that transport the seeds and in the truck). It was used a completely randomized design, with two factors (place of harvesting in 3 levels and harvest time in 3 levels), with four replications. The data were subjected to analysis of variance and means were compared by Tukey test at 5% probability. We evaluated the percentage of broken seeds, moisture content, hypochlorite test and standart germination test. It was found that the use of the bulk carrier auxiliary equipment, contribute to an increase in the percentage of broken soybeans, but not interfering directly on their viability; the reduction in seed moisture at harvest results in more immediate mechanical damages; and mechanical damages in soybean seeds are cumulative.

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