Abstract
Field Screening of Pseudomonad Fluorescent for Controlling Tobacco Lincat Disease. Lincat disease is one of many factors which decreases tobacco production in Temanggung. The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita. The disease is difficult to control by any available control measures. The objective of this research was to find fluorescent pseudomonads which could suppress the lincat disease. The bacteria were isolated from local plants and tested in the field directly without any prior tests in the laboratory. The results indicated that dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field. The results showed that there were variation in disease index between treatments. Plot treated with isolate pf22, pf23, pf30, pf42, pf51, and pf 83 showed the disease index of 16,67%; 13,34%; 20%; 20%; 16,67%; and 6,67%, respectively. However, there was an inconsistency in the capability of the isolates in the disease suppression. At the second experiment, the plants treated with pf83 isolate showed the disease index of 36,6% with the control plot of 63,3%. Laboratory tests indicated that there were 44 isolates which could inhibit pathogen growth in vitro. The fluorescent pseudomonads used in this experiments were proved not to belong to plant pathogenic bacteria.
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Claims 11
Claim · model-written summary
Dipping tobacco roots for 20 minutes in fluorescent pseudomonad suspension suppressed lincat disease in the field.
- Taxon
- tobacco
Nicotiana tabacume1 - Treatment
- dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonade1
- Interactor
- Ralstonia solanacearum
Ralstonia solanacearume3pathogen - Second interactor
- fluorescent pseudomonade1biocontrol_agent
- Outcome
- lincat diseasee1
- Direction
- suppressede1
- Setting
- in the fielde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e3“The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita”
Claim · model-written summary
Isolate pf22 gave a tobacco disease index of 16.67% in the field.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- pf22e2
- Interactor
- Ralstonia solanacearumRalstonia solanacearume3pathogen
- Second interactor
- fluorescent pseudomonade1biocontrol_agent
- Outcome
- disease indexe2
- Value
- 16,67%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e2“Plot treated with isolate pf22, pf23, pf30, pf42, pf51, and pf 83 showed the disease index of 16,67%; 13,34%; 20%; 20%; 16,67%; and 6,67%, respectively”
e3“The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita”
Claim · model-written summary
Isolate pf23 gave a tobacco disease index of 13.34% in the field.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- pf23e2
- Interactor
- Ralstonia solanacearumRalstonia solanacearume3pathogen
- Second interactor
- fluorescent pseudomonade1biocontrol_agent
- Outcome
- disease indexe2
- Value
- 13,34%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e2“Plot treated with isolate pf22, pf23, pf30, pf42, pf51, and pf 83 showed the disease index of 16,67%; 13,34%; 20%; 20%; 16,67%; and 6,67%, respectively”
e3“The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita”
Claim · model-written summary
Isolate pf30 gave a tobacco disease index of 20% in the field.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- pf30e2
- Interactor
- Ralstonia solanacearumRalstonia solanacearume3pathogen
- Second interactor
- fluorescent pseudomonade1biocontrol_agent
- Outcome
- disease indexe2
- Value
- 20%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e2“Plot treated with isolate pf22, pf23, pf30, pf42, pf51, and pf 83 showed the disease index of 16,67%; 13,34%; 20%; 20%; 16,67%; and 6,67%, respectively”
e3“The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita”
Claim · model-written summary
Isolate pf42 gave a tobacco disease index of 20% in the field.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- pf42e2
- Interactor
- Ralstonia solanacearumRalstonia solanacearume3pathogen
- Second interactor
- fluorescent pseudomonade1biocontrol_agent
- Outcome
- disease indexe2
- Value
- 20%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e2“Plot treated with isolate pf22, pf23, pf30, pf42, pf51, and pf 83 showed the disease index of 16,67%; 13,34%; 20%; 20%; 16,67%; and 6,67%, respectively”
e3“The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita”
Claim · model-written summary
Isolate pf51 gave a tobacco disease index of 16.67% in the field.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- pf51e2
- Interactor
- Ralstonia solanacearumRalstonia solanacearume3pathogen
- Second interactor
- fluorescent pseudomonade1biocontrol_agent
- Outcome
- disease indexe2
- Value
- 16,67%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e2“Plot treated with isolate pf22, pf23, pf30, pf42, pf51, and pf 83 showed the disease index of 16,67%; 13,34%; 20%; 20%; 16,67%; and 6,67%, respectively”
e3“The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita”
Claim · model-written summary
Isolate pf83 gave a tobacco disease index of 6.67% in the field.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- pf 83e2
- Interactor
- Ralstonia solanacearumRalstonia solanacearume3pathogen
- Second interactor
- fluorescent pseudomonade1biocontrol_agent
- Outcome
- disease indexe2
- Value
- 6,67%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e2“Plot treated with isolate pf22, pf23, pf30, pf42, pf51, and pf 83 showed the disease index of 16,67%; 13,34%; 20%; 20%; 16,67%; and 6,67%, respectively”
e3“The disease was caused by a combination between Ralstonia solanacearum and Meloidogyne incognita”
Claim · model-written summary
In the second experiment, pf83 isolate gave a lower tobacco disease index of 36.6% than the control plot of 63.3%.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- pf83 isolatee5
- Outcome
- disease indexe5
- Direction
- lowerinferrede5
- Value
- 36,6%e5
- Comparator
- control plote5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e5“At the second experiment, the plants treated with pf83 isolate showed the disease index of 36,6% with the control plot of 63,3%”
Claim · model-written summary
The isolates were inconsistent in their capability to suppress the disease.
- Taxon
- tobaccoNicotiana tabacume1
- Outcome
- capability of the isolates in the disease suppressione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e4“there was an inconsistency in the capability of the isolates in the disease suppression”
Claim · model-written summary
In the laboratory, 44 isolates could inhibit pathogen growth in vitro.
- Taxon
- tobaccoNicotiana tabacume1
- Outcome
- inhibit pathogen growth in vitroe6
- Value
- 44 isolatese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e6“Laboratory tests indicated that there were 44 isolates which could inhibit pathogen growth in vitro”
Claim · model-written summary
The fluorescent pseudomonads used were not plant pathogenic bacteria.
- Taxon
- tobaccoNicotiana tabacume1
- Interactor
- fluorescent pseudomonadsPseudomonas fluorescens groupe7other
- Outcome
- to belong to plant pathogenic bacteriae7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“dipping root system of tobacco for 20 minutes in the suspension of fluorescent pseudomonad suppressed lincat disease in the field”
e7“The fluorescent pseudomonads used in this experiments were proved not to belong to plant pathogenic bacteria”
The same questions in other papers
application · Ralstonia solanacearum · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- positive
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.