Response of Bradyrhizobium japonicum to alginate in presence of pelleted fungicides on soybean seeds
The aim of this research was to determine the response of an inoculant based on strains of Bradyrhizobium japonicum with the addition of alginate in presence of Carbendazim® and Fludioxonil® pelleted fungicides in soybean seeds. The experiment consisted of eight treatments completely randomized with a 3x2 factorial arrangement with three replications by triplicate. Estimation of bacterial survival, as response variable, was performed at three times of drying: 0, 24 and 48 hours. Data were expressed as Log10 (CFU/ mL). Results showed that the two fungicides significantly reduce (p<0.05) the viability of B . japonicum. Fludioxonil® presented a stronger inhibitory effect than Carbendazim® with more than 25% of reduction at 48 hours. Moreover, it was shown that alginate promotes the adherence over soybean seeds and bacteria protection, diminishing the fungicide inhibitory action (p<0.05) after 24 hours. These results suggest that application of polymers in bacteria inoculants are a promising alternative to reduce negative effects of fungicides over cellular viability.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
2015
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| Online Access: | https://revistas.udca.edu.co/index.php/ruadc/article/view/161 |
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