Bacillus aryabhattai dose recommendation for corn seed inoculation
DOI:
https://doi.org/10.46420/TAES.e240003Palabras clave:
Zea mays, plant growth-promoting bacteria, biotechnology, optimal inoculant doseResumen
El uso de bacterias promotoras del crecimiento vegetal (PGPB) puede ser una alternativa sostenible para mejorar la uniformidad y velocidad de emergencia y crecimiento inicial de las plantas. Sin embargo, los efectos de la inoculación de Bacillus aryabhattai aún son incipientes y no concluyentes, y no existe ninguna recomendación para el uso de dosis de inoculantes que contengan B. aryabhattai. Este estudio se realizó para investigar la efectividad de la inoculación de B. aryabhattai para mejorar la germinación y el crecimiento inicial de plantas de maíz (Zea mays L.) y para determinar la dosis óptima de inoculante que se recomendará para la inoculación de semillas de maíz. Se inocularon semillas de maíz con 0, 10, 20, 30 y 40 ml kg–1 del inoculante que contenía la cepa CMAA 1363 de Bacillus aryabhattai. Se sembraron cuatro réplicas de 50 semillas en cajas de plástico que contenían arena gruesa lavada. A los 18 días después de la siembra se registró la tasa de emergencia (E), longitud de brotes (SL), longitud de raíces (RL), materia seca de brotes (SDM) y materia seca de raíces (RDM). Los resultados mostraron que el uso de inoculante que contenía B. aryabhattai mejoró el crecimiento inicial y la producción de materia seca de las plantas de maíz. Esto sugiere que B. aryabhattai podría ser una excelente opción para producir inoculantes microbiológicos con enorme potencial para su uso en la agricultura brasileña y mundial. La dosis óptima de inoculante que contiene B. aryabhattai para aplicar a las semillas de maíz puede oscilar entre 20 y 22 ml kg–1 de inoculante.
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