2015
DOI: 10.1590/0100-5405/1994
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Resistência de cultivares de trigo à giberela mediante inoculação artificial em espiguetas

Abstract: Este trabalho teve como objetivo determinar a concentração ótima de conídios de F. graminearumpara inoculação artificial em espiguetas de trigo e verificar o tipo de resistência à giberela (Tipo I e/ou II) dos cultivares de trigo. O trabalho foi composto por dois experimentos, sendo que no primeiro determinou-se a concentração ótima de conídios mL-1 para inoculação artificial em quatro cultivares. Para isso, testou-se as concentraçóes de 5x103, 15x103, 25x103, 35x103 e 40x103 conídios mL-1. Vinte e um dias apó… Show more

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“…Gibberella incidence on the wheat ears was determined by counting 100 ears from the center of each plot. To determine the incidence percentage, the adapted equation proposed by Deuner et al (2015): INC (%) = [NIL/ TNLE] * 100, where, INC -Incidence, NIL -Number of injured leaves/ears, TNLE -Total number of ears/leaves evaluated. The gibberella severity was determined by counting the number of spikelets infected by ear, totaling 30 ears from the center of each plot.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Gibberella incidence on the wheat ears was determined by counting 100 ears from the center of each plot. To determine the incidence percentage, the adapted equation proposed by Deuner et al (2015): INC (%) = [NIL/ TNLE] * 100, where, INC -Incidence, NIL -Number of injured leaves/ears, TNLE -Total number of ears/leaves evaluated. The gibberella severity was determined by counting the number of spikelets infected by ear, totaling 30 ears from the center of each plot.…”
Section: Methodsmentioning
confidence: 99%
“…The gibberella severity was determined by counting the number of spikelets infected by ear, totaling 30 ears from the center of each plot. These data were expressed as a percentage obtained from the mean number of gibberella-ridden spikelets as a function of the mean number of spikelets per ear, considering 100% of the total spikelets from the ears (Deuner et al, 2015). With these data on incidence and severity of gibberella, the disease index was determined by the formula: [(incidence x severity) / 100].…”
Section: Methodsmentioning
confidence: 99%