PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINES
The mechanical harvesting causes injuries on seeds and may affect their quality. Different threshing mechanisms and their adjustments may also affect the intensity of impacts that machines cause on seeds. So, this study aimed at diagnosing and evaluating the effect of two combines: the first one w...
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| Format: | Article |
| Language: | English |
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Universidade Federal Rural do Semi-Árido
2015-01-01
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| Series: | Revista Caatinga |
| Online Access: | http://www.redalyc.org/articulo.oa?id=237142689021 |
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| author | FÁBIO PALCZEWSKI PACHECO LÚCIA HELENA PEREIRA NÓBREGA GISLAINE PICOLLO DE LIMA MÁRCIA SANTORUM WALTER BOLLER LORIVAN FORMIGHIERI |
| author_facet | FÁBIO PALCZEWSKI PACHECO LÚCIA HELENA PEREIRA NÓBREGA GISLAINE PICOLLO DE LIMA MÁRCIA SANTORUM WALTER BOLLER LORIVAN FORMIGHIERI |
| author_sort | FÁBIO PALCZEWSKI PACHECO |
| collection | DOAJ |
| description | The mechanical harvesting causes injuries on seeds and may affect their quality. Different threshing mechanisms and their adjustments may also affect the intensity of impacts that machines cause on seeds. So, this study aimed at diagnosing and evaluating the effect of two combines: the first one with a threshing system of axial flow and the other one with a threshing system of tangential flow, under adjustments of concave opening (10 mm, 30 mm and 10 mm for a combine with axial flow and 3.0 mm, 15 mm and 3.0 mm for a combine with tangential flow) and three cylinder rotations on the quality of soybean seeds harvested at two moisture contents. Soybean seeds of cultivar 'ND 4910' were harvested at 16.6% moisture (mid - morning) and 13.7% moisture in the afternoon. The seeds quality was evaluated by germination tests, germination speed index (GSI), germination rate, moisture content, percentage of purity and vigor by tetrazolium test. Despite the combine, the results showed that the mechanical injury has most reduced seeds quality, at 16.6% moisture content, concave opening of 30 mm (axial) and 10 mm (tangential) and cylinder rotation of 1100 rpm (axial) and 1000 (tangential), both with the highest rotations used. The combine with tangential flow had the highest degree of seeds purity. When seeds moisture content at harvest was close to 13.7%, there was the highest seed injury, while, at 16.6%, there was the highest number of crushed soybeans, regardless the combine adjustment. |
| first_indexed | 2024-12-14T12:11:43Z |
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| id | doaj.art-1a28248bfd2149d0a8bf746c771a86c4 |
| institution | Directory Open Access Journal |
| issn | 0100-316X 1983-2125 |
| language | English |
| last_indexed | 2024-12-14T12:11:43Z |
| publishDate | 2015-01-01 |
| publisher | Universidade Federal Rural do Semi-Árido |
| record_format | Article |
| series | Revista Caatinga |
| spelling | doaj.art-1a28248bfd2149d0a8bf746c771a86c42022-12-21T23:01:43ZengUniversidade Federal Rural do Semi-ÁridoRevista Caatinga0100-316X1983-21252015-01-01284190201PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINESFÁBIO PALCZEWSKI PACHECOLÚCIA HELENA PEREIRA NÓBREGAGISLAINE PICOLLO DE LIMAMÁRCIA SANTORUMWALTER BOLLERLORIVAN FORMIGHIERIThe mechanical harvesting causes injuries on seeds and may affect their quality. Different threshing mechanisms and their adjustments may also affect the intensity of impacts that machines cause on seeds. So, this study aimed at diagnosing and evaluating the effect of two combines: the first one with a threshing system of axial flow and the other one with a threshing system of tangential flow, under adjustments of concave opening (10 mm, 30 mm and 10 mm for a combine with axial flow and 3.0 mm, 15 mm and 3.0 mm for a combine with tangential flow) and three cylinder rotations on the quality of soybean seeds harvested at two moisture contents. Soybean seeds of cultivar 'ND 4910' were harvested at 16.6% moisture (mid - morning) and 13.7% moisture in the afternoon. The seeds quality was evaluated by germination tests, germination speed index (GSI), germination rate, moisture content, percentage of purity and vigor by tetrazolium test. Despite the combine, the results showed that the mechanical injury has most reduced seeds quality, at 16.6% moisture content, concave opening of 30 mm (axial) and 10 mm (tangential) and cylinder rotation of 1100 rpm (axial) and 1000 (tangential), both with the highest rotations used. The combine with tangential flow had the highest degree of seeds purity. When seeds moisture content at harvest was close to 13.7%, there was the highest seed injury, while, at 16.6%, there was the highest number of crushed soybeans, regardless the combine adjustment.http://www.redalyc.org/articulo.oa?id=237142689021 |
| spellingShingle | FÁBIO PALCZEWSKI PACHECO LÚCIA HELENA PEREIRA NÓBREGA GISLAINE PICOLLO DE LIMA MÁRCIA SANTORUM WALTER BOLLER LORIVAN FORMIGHIERI PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINES Revista Caatinga |
| title | PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINES |
| title_full | PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINES |
| title_fullStr | PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINES |
| title_full_unstemmed | PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINES |
| title_short | PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS UNDER MECHANICAL INJURIES CAUSED BY COMBINES |
| title_sort | physiological quality of soybean seeds under mechanical injuries caused by combines |
| url | http://www.redalyc.org/articulo.oa?id=237142689021 |
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