|
|
|
|
| |
|
| |
|
|
| Jeromini,Tatiane Sanches; Muniz,Roberta Almeida; Silva,Givanildo Zildo da; Martins,Cibele Chalita. |
| ABSTRACT The Rules for Seed Analysis reports the use of a paper envelope in germination tests, but without any description of the exact method. The objective of this study was to evaluate the viability of the envelope method and the optimal level of substrate wetting when performing germination tests of onion seeds. The study was performed in two stages. In the first stage, a batch of seeds was evaluated using two seeding methods (on paper and in a paper envelope) and five levels of substrate wetting with differing amounts of water: 1.5, 2.0, 2.5, 3.0, and 3.5 times the dry mass of the paper. A completely randomized design was used in a 2×5 factorial scheme. In the second stage of the study, the two seeding methods mentioned in the prior were tested in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium cepa L.; Analysis of seeds; Quality control; Water levels; Methodology. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100169 |
| |
|
|
| Silva,Givanildo Zildo da; Martins,Cibele Chalita; Jeromini,Tatiane Sanches; Pereira,Francisco Élder Carlos Bezerra; Bruno,Riselane de Lucena Alcântara. |
| ABSTRACT The quality of seeds is influenced by the climatic conditions of the production field. The identification of characteristics of the best forage seed fields allows the improvement of the sector. In this study, the aim was to identify climatic characteristics of producing regions that may affect the physical and physiological quality of Brachiaria brizantha cv. BRS 'Piatã' seeds. Seeds from 10 lots were evaluated for purity, other seeds, mass of a thousand seed, water content, germination, dormancy, emergence, seedling emergence in sand and seedling emergence in the field. Temperature and precipitation data of each production field from flowering to harvest were obtained. The means of treatments were compared by the Scott-Knott test at 5%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climatic factors; Commercialization of seeds; Tropical forage grasses. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400552 |
| |
|
|
| Pereira,Francisco Elder Carlos Bezerra; Martins,Cibele Chalita; Jeromini,Tatiane Sanches; Gomes-Junior,Francisco Guilhien; Torres,Salvador Barros. |
| ABSTRACT Identifying fast and efficient tests to evaluate the vigor of forage grass seed lots is desirable in the quality control programs of the companies in this sector. Thus, the objective was to evaluate the efficiency of vigor tests on the physiological quality of seeds of Panicum maximum, cv. Mombasa, for the differentiation of lots and prediction of seedling emergence in the field. Nineteen seed lots were subjected to evaluations of moisture content, germination, first count, germination speed index, seedling emergence in sand, first count of seedling emergence in sand, seedling root and shoot lengths, seedling emergence in the field and computerized analysis of seedling images obtained through SVIS® software. The experimental design was completely... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Panicum maximum; SVIS®; Principal component; Vigor; Image analysis. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100407 |
| |
|
|
| Silva,Givanildo Zildo da; Martins,Cibele Chalita; Bruno,Riselane de Lucena Alcântara; Pereira,Francisco Elder Carlos Bezerra; Jeromini,Tatiane Sanches. |
| ABSTRACT This study aimed to verify the efficiency of multivariate analysis in the identification of promising vigor tests for the evaluation of the physiological quality of seed lots of Brachiaria decumbens cv. Basilisk. Seeds of B. decumbens cv. Basilisk were tested for the following parameters: water content, germination, first germination count, cold test, electrical conductivity, seedling growth, seedling dry mass, first count and emergence percentage of seedlings in laboratory substrate, and seedling emergence in the field. The data obtained in each test-all completely randomized experimental designs-were analyzed separately by means of analysis of variance, Scott-Knott’s test, and multivariate analysis. Principal component analysis is efficient to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physiological quality; Control quality; Principal component analysis; Grass forage; Seedling emergence in field. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000200291 |
| |
|
|
|
