Physiological quality of dynamically cooled and stored soybean seeds
Storage is an important step in the production of soybean seeds, mainly in tropical regions, where high temperatures can drastically reduce seed quality. The storage at cooler temperatures may be a feasible alternative to preserve seed quality during storage. The objective of this study was to evaluate the physiological quality of soybean seeds artificially cooled by a dynamic process and stored in an environment, with non controlled temperature and relativity humidity. Two seed lots of cultivars Monsoy 8757, TMG 115 RR and BRS Valiosa RR were used. After processing and during packaging the seeds were cooled to 18 ºC by a dynamic process. Seed samples were collected after 0, 60 and 120 days of storage, using the following parameters germination, accelerated aging, seedling emergence in sand, speed of emergence index, electrical conductivity, tetrazolium and seed health. Although soybean seeds artificially cooled by the dynamic method may have slightly superior performance in maintaining physiological quality during storage in non-refrigerated warehouse, for lots of high physiological quality, these advantages are not observed.
Main Authors: | Zuchi,Jacson, França-Neto,José de Barros, Sediyama,Carlos Sigueyuki, Lacerda Filho,Adílio Flauzino de, Reis,Múcio Silva |
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Format: | Digital revista |
Language: | English |
Published: |
ABRATES - Associação Brasileira de Tecnologia de Sementes
2013
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000300012 |
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