| Título: |
Comparison of tests for the analysis of vigor and viability in soybean seeds and their relationship to field emergence - doi: 10.4025/actasciagron.v35i1.14955 Comparison of tests for the analysis of vigor and viability in soybean seeds and their relationship to field emergence - doi: 10.4025/actasciagron.v35i1.14955 |
| Autores: |
Santorum, Márcia; Universidade Estadual do Oeste do Paraná Nóbrega, Lúcia Helena Pereira; Universidade Estadual do Oeste do Paraná Souza, Eduardo Godoy de; Universidade Estadual do Oeste do Paraná Santos, Diego dos; Universidade Federal da Fronteira Sul Boller, Walter; Universidade de Passo Fundo Mauli, Márcia Maria; Universidade Estadual do Oeste do Paraná |
| Fecha: | 2012-12-19 |
| Publicador: | Acta Scientiarum. Agronomy |
| Fuente: |
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| Tipo: |
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| Tema: |
Fitotecnia germination; seeds quality; regression model Produção e Beneficiamento de sementes germination; seeds quality; regression model |
| Descripción: |
The objective of this study was to compare tests used to identify vigor in soybean seeds and to establish a model that relates the seeds’ vigor, as determined in the laboratory, with field emergence. Five soybean cultivars were evaluated based on their germination, sand emergence, immersion in sodium hypochlorite, accelerated aging, controlled deterioration, cold test, seedling growth, electrical conductivity, tetrazolium, emergence percentage, seedling length in the field and seedling dry weight. The experimental design was completely randomized and means were compared by the Tukey test at 5% probability. Assays for accelerated aging, controlled deterioration and tetrazolium showed the closest correlation to field emergence. The regression model included the sand emergence speed, germination speed index and index of sand emergence speed as the variables that best correlated with field emergence. The objective of this study was to compare tests used to identify vigor in soybean seeds and to establish a model that relates the seeds’ vigor, as determined in the laboratory, with field emergence. Five soybean cultivars were evaluated based on their germination, sand emergence, immersion in sodium hypochlorite, accelerated aging, controlled deterioration, cold test, seedling growth, electrical conductivity, tetrazolium, emergence percentage, seedling length in the field and seedling dry weight. The experimental design was completely randomized and means were compared by the Tukey test at 5% probability. Assays for accelerated aging, controlled deterioration and tetrazolium showed the closest correlation to field emergence. The regression model included the sand emergence speed, germination speed index and index of sand emergence speed as the variables that best correlated with field emergence. |
| Idioma: | Inglés |