Abstract
Indigenous rhizobacteria screening from tomato to control Ralstonia syzigii subsp. indonesiensis and promote plant growth rate and yield. Bacterial wilt is the most damaging vascular pathogen on tomato and many other crops in tropical, subtropical and warm temperate areas of the world which limits the production. Rhizobacteria have been concerned as potential biological control agents due to their ability to promote plant growth and health, and their role as antagonists of plant pathogens. The purpose of this research was to screen the best indigenous rhizobacteria (IRB) that able to control bacterial wilt disease and increase growth rate and yield of tomato plant. This research was conducted in 3 stages: (1) Isolation and selection of indigenous rhizobacteria as PGPR on tomato seedlings, consisted of 27 IRB isolates and a control, with triplications; (2) Selection of IRB isolates that control R. syzigii subsp. indonesiensis on tomato plants, which consisted of 8 treatments including 7 IRB and a control with 5 replications; (3) Characterization of IRB isolates ability to promote plant growth (indicated with IAA production & phosphate solubilizing). The variables observed were disease development, growth enhancement and IRB isolate ability to produce IAA and solubilize phosphate. The results showed that all IRB isolates were able to control bacterial wilt disease and increase the growth rate and yield of tomato. IR2.3.5, IR1.3.4 and IR1.4.2 were the best isolates in controlling R. syzigii subsp. indonesiensis and increasing the growth rate and yield by 81.25% and 68.72% respectively. All isolates showed various abilities to produce IAA, however, only isolates IR2.3.5 and IR1.3.4 that had abilities to solubilize phosphate.
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Claims 8
Claim · model-written summary
All IRB isolates controlled bacterial wilt disease in tomato.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- IRB isolatese0
- Interactor
- R. syzigii subsp. indonesiensise1pathogen
- Outcome
- bacterial wilt diseasee0
- Direction
- controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all IRB isolates were able to control bacterial wilt disease and increase the growth rate and yield of tomato”
e1“control R. syzigii subsp. indonesiensis on tomato plants”
Claim · model-written summary
All IRB isolates increased tomato growth rate.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- IRB isolatese0
- Outcome
- growth ratee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all IRB isolates were able to control bacterial wilt disease and increase the growth rate and yield of tomato”
Claim · model-written summary
All IRB isolates increased tomato yield.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- IRB isolatese0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all IRB isolates were able to control bacterial wilt disease and increase the growth rate and yield of tomato”
Claim · model-written summary
IR2.3.5, IR1.3.4 and IR1.4.2 were the best isolates for controlling R. syzigii subsp. indonesiensis.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- IR2.3.5, IR1.3.4 and IR1.4.2e0
- Interactor
- R. syzigii subsp. indonesiensise0pathogen
- Outcome
- controlling R. syzigii subsp. indonesiensise0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IR2.3.5, IR1.3.4 and IR1.4.2 were the best isolates in controlling R. syzigii subsp. indonesiensis and increasing the growth rate and yield by 81.25% and 68.72% respectively”
e1“yield of tomato plant”
Claim · model-written summary
The best isolates increased tomato growth rate by 81.25%.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- IR2.3.5, IR1.3.4 and IR1.4.2e0
- Outcome
- growth ratee0
- Direction
- increasinge0
- Value
- 81.25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IR2.3.5, IR1.3.4 and IR1.4.2 were the best isolates in controlling R. syzigii subsp. indonesiensis and increasing the growth rate and yield by 81.25% and 68.72% respectively”
e1“yield of tomato plant”
Claim · model-written summary
The best isolates increased tomato yield by 68.72%.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- IR2.3.5, IR1.3.4 and IR1.4.2e0
- Outcome
- yielde0
- Direction
- increasinge0
- Value
- 68.72%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IR2.3.5, IR1.3.4 and IR1.4.2 were the best isolates in controlling R. syzigii subsp. indonesiensis and increasing the growth rate and yield by 81.25% and 68.72% respectively”
e1“yield of tomato plant”
Claim · model-written summary
All isolates produced IAA with varying ability.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- various abilities to produce IAAe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All isolates showed various abilities to produce IAA”
e1“yield of tomato plant”
Claim · model-written summary
Only IR2.3.5 and IR1.3.4 solubilized phosphate.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- IR2.3.5 and IR1.3.4e0
- Outcome
- abilities to solubilize phosphatee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only isolates IR2.3.5 and IR1.3.4 that had abilities to solubilize phosphate”
e1“yield of tomato plant”
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- negative
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See all 441 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.