Abstract
Controlling downy mildew caused by Perenosclerospora philipinensis in maize plants is currently dependent on the use of synthetic pesticides; therefore, it is necessary to develop biocontrol agents as a sustainable alternative control. Filtrate cultures of biocontrol agent fungi consist of antibiotics, enzymes, and secondary metabolites that are antimicrobial in nature. We conducted the research from July to August 2024 at the Plant Disease Laboratory of the Department of Protection, Faculty of Agriculture, and the Biochemistry Laboratory of the Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University. This study had four parts: (1) identifying the morphology of biocontrol agent isolates and pathogenic fungi; (2) measuring growth diameter of antagonist fungi;(3) testing filtrate cultures for their ability to inhibit pathogens; and (4) testing filtrate cultures for their ability in vigor of sprouting on corn seeds. Based on morphological identification, the four biocontrol agent isolates are Trichoderma, Gliocladium, Penicillium, and Aspergillus flavus , with the best growth diameter on the Trichoderma, which is 8.5 cm on seven days. The filtrate cultures performed the best in the inhibition test on P. philipinensis , exhibiting spore damage percentages of 70-74%. The vigor test performed best on Trichoderma and Aspergillus flavus , with growth potential (GP) of 100% and 63%, respectively. Filtrate culture with biological agents has good potential for P. philipinensis spore inhibition and corn seed germination.
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Claims 4
Claim · model-written summary
Trichoderma had the largest isolate growth diameter, 8.5 cm after seven days.
- Interactor
- Trichoderma
Trichodermae0biocontrol_agent - Outcome
- growth diametere0
- Value
- 8.5 cme0
- Qualifier
- on seven dayse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best growth diameter on the Trichoderma, which is 8.5 cm on seven days”
t0“Maize”
Claim · model-written summary
Filtrate cultures damaged 70-74% of P. philipinensis spores in the inhibition test.
- Treatment
- filtrate culturese0
- Interactor
- P. philipinensise0pathogen
- Outcome
- P. philipinensis , exhibiting spore damage percentagese0
- Direction
- beste0
- Value
- 70-74%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The filtrate cultures performed the best in the inhibition test on P. philipinensis , exhibiting spore damage percentages of 70-74%.”
t0“Maize”
Claim · model-written summary
Trichoderma filtrate gave maize seeds 100% growth potential.
- Treatment
- Trichodermae0
- Interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- growth potential (GP)e0
- Direction
- beste0
- Value
- 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The vigor test performed best on Trichoderma and Aspergillus flavus , with growth potential (GP) of 100% and 63%, respectively.”
t0“Maize”
Claim · model-written summary
Aspergillus flavus filtrate gave maize seeds 63% growth potential.
- Treatment
- Aspergillus flavuse0
- Interactor
- Aspergillus flavus
Aspergillus flavuse0biocontrol_agent - Outcome
- growth potential (GP)e0
- Direction
- beste0
- Value
- 63%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The vigor test performed best on Trichoderma and Aspergillus flavus , with growth potential (GP) of 100% and 63%, respectively.”
t0“Maize”
The same questions in other papers
Trichoderma · growth · Zea mays (maize)Results differ
18 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
22 papers more in this group
See all 26 papers →Aspergillus flavus · growth · Zea mays (maize)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.