Estudos sôbre a conservação de sementes. VIII tomate* * Trabalho realizado quando o autor exercia suas funções na Seção de Fisiologia.
The influence of storage conditions on the viability of tomato seed
Oswaldo Bacchi
SUMMARY
The viability of tomato seeds kept under different storage conditions was studied during a period of 48 months.
Based on the experimental results presented in this note, the following conclusions were drawn:
1) complete viability at the end of 48 months was obtained for seeds stored at room temperature and at relative humidities up to 30%;
2) at the same temperature the longevity of the seeds decreased with increasing relative humidity in such way that the germination of the seeds kept at 80% of relative íiumidity was reduced to 58% and 5% after 4 and 16 months, respectively;
3) at the end of the experiments there was no loss of viability in seed* containing 5.2%, 6.6% and 8.0% of moisture and stored in sealed glass tubes at 10°C;
4) the longevity of the seeds stored in airtight containers at room temperature was maintained equally well except in the case of the seeds with 8.0% of moisture content, which germinated only 44% after 48 months.
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Recebido para publicação em 12 de janeiro de 1960.
Datas de Publicação
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Publicação nesta coleção
14 Abr 2010 -
Data do Fascículo
1960
