Producción CyT
Congreso
Autoría
Gaido, J.
;
Barengo, Pamela B.
;
Olivella, Laura
;
ESPARIZ, MARTIN
;
Daurelio, Lucas D.
Fecha
2021
Editorial y Lugar de Edición
RAFV
Resumen
Información suministrada por el agente en
SIGEVA
Wheat (Triticum aestivum), one of the major crops in the world, is affected by different stresses that are partially overcome by the use of agrochemicals. New strategies with low environmental impact are rising, such as the utilization of plant growth promoting rhizobacteria (PGPR). The aim of the present work was to determine PGPR ability of six new Bacillus strains over wheat crop grown under field conditions. Mercurio Klein seeds were inoculated with a Bacillus suspension (potato-dextrose me...
Wheat (Triticum aestivum), one of the major crops in the world, is affected by different stresses that are partially overcome by the use of agrochemicals. New strategies with low environmental impact are rising, such as the utilization of plant growth promoting rhizobacteria (PGPR). The aim of the present work was to determine PGPR ability of six new Bacillus strains over wheat crop grown under field conditions. Mercurio Klein seeds were inoculated with a Bacillus suspension (potato-dextrose medium, ON, adjusted at DO=1) or a dilution of the culture media as control, and then sown in a plot, using one sowing line of 2m per treatment separated by 17cm from each other. Growth and yield related parameters were determined on different days after sowing (DAS). The plants developed from seeds inoculated with Bacillus sp. and B. megaterium showed a higher number of tillers at 70 DAS than control (6,2±2,7 5,5±1,9 5,3±2,2 vs 3,4±1,1 respectively, media±SE, p<0,05, n=10) and one of the Bacillus sp. strains gave rise to a higher number of spikes (5,7±0,9) at 100 DAS than control (4,4±2,2). After harvest, at 135 DAS, it was found that seeds inoculated with a B. megaterium strain showed augments regarding the control (p<0,05, n=15) in the number of spikes (4,1±1,6 vs 2,7±0,7) and tillers (3,1±1,6 vs 1,7±0,7) per plant, number of grains per plant (106,8±39,7 vs 73,1±13,3) and grain weight (mg) per plant (3,4±1,6 vs 2,2±0,6). These results allow us to select the B. megaterium strain to be furtherly studied as a potential bioinoculant.
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Palabras Clave
BACILLUSPlant Growth Promoting RhizobacteriaWHEAT