Skip to main content

Table 4 Effect of direct confrontation of two Penicillium spp. isolates, two Trichoderma spp. isolates, and four Aspergillus sp. isolates on mycelial growth inhibition of F. oxysporum f. sp. melonis and M. phaseolina after 5 days of incubation at 28 °C, means of six Petri plates (two plates per replicate)

From: Evaluation of the efficiency of Trichoderma, Penicillium, and Aspergillus species as biological control agents against four soil-borne fungi of melon and watermelon

Pathogens Code Mycelial growth inhibition percentage (%)a  
P. digitatum P. italicum T. viride T. harzianum A. flavus A. niger A. fumigatus A. terreus P valueb
F. oxysporum f. sp. melonis FOM1 19.31b C 11.43c D 11.61c C 16.75b D 16.56b C 20.54b B 11.75b D 35.14a A > 0.05
FOM3 20.38a B 19.73b B 10.24c D 19.8b B 25.95a AB 21.6a AB 26.35a A 18.81b C > 0.05
FOM4 17.34b C 16.12b C 26.43a A 21.88a BC 22.1a BC 24.42a AB 21.26a BC 20.6a C > 0.05
FOM6 19.91b B 23.27a AB 22.55a AB 16.6b C 25.71a AB 30.46a A 15.19b C 24.51a AB > 0.05
FOM8 13.29c D 25.6b AB 8.71d D 23.31b C 36.59a A 27.86b AB 11.07c D 12.4c D > 0.05
P valuec   > 0.05 > 0.05 > 0.05 > 0.05 > 0.05 > 0.05 > 0.05 > 0.05  
M. phaseolina MP1 48.01a A 36.22a A 42.43a A 42.38a A 23.77b B 29.33b B 35.97a A 21.84c B > 0.05
MP2 38.54a B 35.39a B 38.15a B 52.42a A 33.51ab B 29.78a B 44.81a A 44.92a A > 0.05
MP3 30.51ab A 46.63a A 37.90a B 46.21a A 42.56a A 30.63a B 24.54c C 24.64c C > 0.05
MP4 27.09b C 43.97a A 33.27ab B 38.74b B 37.34a B 31.79a B 20.79c D 20.29cd D > 0.05
MP5 35.14a B 31.95ab B 41.46a A 42.38a A 29.79b BC 27.29ab C 29.13bc BC 28.23b BC > 0.05
P valuec   > 0.05 > 0.05 > 0.05 > 0.05 > 0.05 > 0.05 > 0.05 > 0.05  
  1. aMycelial growth inhibition percentage values; means of three replicates (two Petri plates per replicate). Duncan’s multiple range test: values followed by different letters are significantly different at P ≤ 0.05. Capital letters are for comparison of means in the same row. Small letters are for comparison of means in the same column
  2. bDuncan’s multiple range test is for comparison of means among fungal antagonists with the same pathogen on mycelial growth inhibition
  3. cDuncan’s multiple range test is for comparison of means among pathogens in the same fungal antagonist on mycelial growth inhibition