Physiological response of soybean seeds to spray volumes of industrial chemical treatment and storage in different environments
2020
Julia Abati | Cristian Rafael Brzezinski | Elieges Carina Bertuzzi | Fernando Augusto Henning | Claudemir Zucareli
Abstract: The increase in spray volumes in industrial seed treatments may increase the deterioration and reduce the physiological potential of seeds, especially when stored in unfavorable environments. The aim of this study was to evaluate the effect of spray volumes obtained by the combination of different chemical products, via industrial treatment, on the physiological potential of soybean seeds during storage in different environments. A completely randomized experimental design was used in a 5 × 3 factorial arrangement, with four replications. The factors were five spray volumes (0, 600, 1200, 1800 and 2400 mL.100 kg-1 of seeds), obtained from the combination of different products in commercial use, and three storage periods (0, 60 and 120 days), evaluated separately in two environments (storage without climate control and cold storage). The following variables were evaluated: germination, first germination count, seedling emergence in sand, emergence speed index, seedling length (total, shoot, and root) and dry matter (shoot and root). The physiological potential of soybean seeds is reduced by increasing the spray volume used in the industrial treatment and by prolonging the storage period. However, this effect is mitigated by the controlled conditions of cold storage.
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