Abstract
Abstract The aim of study was to determine the efficacy of bacterial isolates from the rhizosphere in influencing the resistance of maize to downy mildew by measuring the accumulated concentration of salicylic acid. Treatments were based on a fully randomized 2-factor design with 3 levels of; factor I (bacteria) 3 levels (b0 = no bacteria, b1 = Bacillus paramycoides Ga-3, b2 = B. cereus Si-4) and factor II (salicylic acid) 2 levels (as0 = 0 g/L and as1 = 2 g/L). The research was carried out at the greenhouse and plant pathology laboratory, Indonesian Cereal Research Institute (ICERI), from March to July 2020. Each treatment combination was tested on three varieties of maize, namely Anoman, Bima20, and Bima3. Hence there were 18 treatment combinations. Furthermore, the results showed that rhizosphere bacteria and salicylic acid could control downy mildew in maize. In the case of the Bima20 variety, the combined treatment of B. paramycoides Ga3 + salicylic acid had the lowest incidence of disease at 13%. Meanwhile, treatment of B. cereus Si4 + salicylic acid in the Bima3 variety had the lowest incidence of disease by 26%. Considering the results, the enrichment of salicylic acid content was highest at 9.6 ppm on maize which was applied with the rhizosphere bacterium B. paramycoides Ga3 + salicylic acid.
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Claims 4
Claim · model-written summary
Rhizosphere bacteria and salicylic acid could control downy mildew in maize.
- Treatment
- rhizosphere bacteria and salicylic acide0
- Interactor
- Peronosclerospora philipinensist0pathogen
- Outcome
- downy mildewe0
- Direction
- controle0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize to downy mildew, Peronosclerospora philipinensis”
e0“rhizosphere bacteria and salicylic acid could control downy mildew in maize”
Claim · model-written summary
In maize variety Bima20, B. paramycoides Ga3 plus salicylic acid gave the lowest disease incidence, 13%.
- Material
- Bima20e0
- Treatment
- B. paramycoides Ga3 + salicylic acide0
- Interactor
- Peronosclerospora philipinensist0pathogen
- Second interactor
- B. paramycoides Ga3Bacillus paramycoidese0biocontrol_agent
- Outcome
- incidence of diseasee0
- Direction
- loweste0
- Value
- 13%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize to downy mildew, Peronosclerospora philipinensis”
e0“In the case of the Bima20 variety, the combined treatment of B. paramycoides Ga3 + salicylic acid had the lowest incidence of disease at 13%”
Claim · model-written summary
In maize variety Bima3, B. cereus Si4 plus salicylic acid gave the lowest disease incidence, 26%.
- Material
- Bima3e0
- Treatment
- B. cereus Si4 + salicylic acide0
- Interactor
- Peronosclerospora philipinensist0pathogen
- Second interactor
- B. cereus Si4
Bacillus cereuse0biocontrol_agent - Outcome
- incidence of diseasee0
- Direction
- loweste0
- Value
- 26%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize to downy mildew, Peronosclerospora philipinensis”
e0“treatment of B. cereus Si4 + salicylic acid in the Bima3 variety had the lowest incidence of disease by 26%”
Claim · model-written summary
Salicylic acid content in maize was highest, 9.6 ppm, with B. paramycoides Ga3 plus salicylic acid.
- Treatment
- rhizosphere bacterium B. paramycoides Ga3 + salicylic acide0
- Interactor
- B. paramycoides Ga3Bacillus paramycoidese0biocontrol_agent
- Outcome
- salicylic acid contente0
- Direction
- higheste0
- Value
- 9.6 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize to downy mildew, Peronosclerospora philipinensis”
e0“the enrichment of salicylic acid content was highest at 9.6 ppm on maize which was applied with the rhizosphere bacterium B. paramycoides Ga3 + salicylic acid”
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