Detalhes bibliográficos
| Ano de defesa: |
2012 |
| Autor(a) principal: |
Pascuali, Luiz Carlos |
| Orientador(a): |
Peske, Silmar Teichert |
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Tese
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal de Pelotas
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Ciência e Tecnologia de Sementes
|
| Departamento: |
Faculdade de Agronomia Eliseu Maciel
|
| País: |
BR
|
| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
https://guaiaca.ufpel.edu.br/handle/123456789/1379
|
Resumo: |
Seed storage potential is affected by harvesting time, genotype, environment conditions and storage conditions. Maintenance of seed vigor ensures adequate crop establishment with high agronomic performance. Thus, the present study aimed to evaluate the reduction in vigor of soybean seeds in relation to the location and storage period. Three experiments were conducted with soybean varieties: BMX Apolo RR; BMX Potência RR and 53 RR FUNDACEP. The seeds were obtained in the field, soon after reaching reproductive R7, being dry, threshing by hand, placed in paper bags and stored in a refrigerated environment, environmental conditions and at 30°C and relative humidity of 70%. Analyses were performed monthly to monitor the physiological quality of the seeds through germination, accelerated aging 41° C for 48 hours, accelerated aging 42°C for 48 hours, cold test and field emergence. Based on the results it was concluded that: 1) the soybean seed storage at constant temperature of 30°C causes vigor reduction on 60 days storage; 2) loss of vigor is not linearly; 3) the potential storage of soybean seeds under cold conditions is more than 210 days; and 4) soybean seed storage potential depends also on the cultivar. |
