Abstract
Abstract: Brown root rot disease caused by Fomes lamoensis and Trott has been identified as the primary root disease of tea. Indiscriminate use of chemicals in tea garden area has an adverse effect on the environment. For management of this root disease, integrated approach is required for sustainability in tea cultivation. The present study involves the use of five systemic fungicides, which were screened and tested against the pathogen. Total five fungicides used, among the fungicides propiconazole and hexaconazole was inhibit 98.51% and 100% growth of pathogen @ 100mg/l concentration. However bavistin, roko and ektino, showed in12.58%, 5.18% and1.48% inhibition respectively. Bacillus cereus and Trichoderma harzianum were also evaluated and efficiently inhibited F. lamoensis in vitro. The zone of inhibition varied from 10 to 15 mm in case of B. cereus and 10 to 16 mm in case of T. harzianum. The nursery experiment exhibited that tea plants at 120 days after the treatment (DAT) with the pathogen showed 76.66% disease incidence. The reduction in disease incidence (23.33% and 13.25% respectively) was observed when the plants were treated with biocontrol agents i.e.B. cereus and T. harzianum. In case of chemically treated plants only 10% disease incidence was observed. The results of the nursery experiment showed that both the chemicals and biocontrol agents significantly affected incidence of disease and promoted growth of tea measured in terms of shoot height, root length, number of new leaves, lateral branches, biomass of shoot and root over the control.
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Claims 12
Claim · model-written summary
Propiconazole inhibited pathogen growth by 98.51% at 100 mg/l.
- Taxon
- Teat0
- Treatment
- propiconazolee0
- Interactor
- Fomes lamoensise1pathogen
- Outcome
- growth of pathogene0
- Direction
- inhibite0
- Value
- 98.51%e0
Not reportedComparator
Verbatim
e0“propiconazole and hexaconazole was inhibit 98.51% and 100% growth of pathogen @ 100mg/l concentration”
e1“Brown root rot disease caused by Fomes lamoensis”
t0“Tea”
Claim · model-written summary
Hexaconazole inhibited pathogen growth by 100% at 100 mg/l.
- Taxon
- Teat0
- Treatment
- hexaconazolee0
- Interactor
- Fomes lamoensise1pathogen
- Outcome
- growth of pathogene0
- Direction
- inhibite0
- Value
- 100%e0
Not reportedComparator
Verbatim
e0“propiconazole and hexaconazole was inhibit 98.51% and 100% growth of pathogen @ 100mg/l concentration”
e1“Brown root rot disease caused by Fomes lamoensis”
t0“Tea”
Claim · model-written summary
Bavistin inhibited pathogen growth by 12.58%.
- Taxon
- Teat0
- Treatment
- bavistine0
- Interactor
- Fomes lamoensise1pathogen
- Outcome
- inhibitione0
- Direction
- inhibitione0
- Value
- 12.58%e0
Not reportedComparator
Verbatim
e0“bavistin, roko and ektino, showed in12.58%, 5.18% and1.48% inhibition respectively.”
e1“Brown root rot disease caused by Fomes lamoensis”
t0“Tea”
Claim · model-written summary
Roko inhibited pathogen growth by 5.18%.
- Taxon
- Teat0
- Treatment
- rokoe0
- Interactor
- Fomes lamoensise1pathogen
- Outcome
- inhibitione0
- Direction
- inhibitione0
- Value
- 5.18%e0
Not reportedComparator
Verbatim
e0“bavistin, roko and ektino, showed in12.58%, 5.18% and1.48% inhibition respectively.”
e1“Brown root rot disease caused by Fomes lamoensis”
t0“Tea”
Claim · model-written summary
Ektino inhibited pathogen growth by 1.48%.
- Taxon
- Teat0
- Treatment
- ektinoe0
- Interactor
- Fomes lamoensise1pathogen
- Outcome
- inhibitione0
- Direction
- inhibitione0
- Value
- 1.48%e0
Not reportedComparator
Verbatim
e0“bavistin, roko and ektino, showed in12.58%, 5.18% and1.48% inhibition respectively.”
e1“Brown root rot disease caused by Fomes lamoensis”
t0“Tea”
Claim · model-written summary
Bacillus cereus inhibited F. lamoensis in vitro with a 10 to 15 mm zone.
- Taxon
- Teat0
- Treatment
- Bacillus cereuse0
- Interactor
- F. lamoensise0pathogen
- Second interactor
- Bacillus cereus
Bacillus cereuse0biocontrol_agent - Outcome
- inhibited F. lamoensise0
- Direction
- inhibitede0
- Value
- 10 to 15 mme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus cereus and Trichoderma harzianum were also evaluated and efficiently inhibited F. lamoensis in vitro. The zone of inhibition varied from 10 to 15 mm in case of B. cereus and 10 to 16 mm in case of T. harzianum.”
t0“Tea”
Claim · model-written summary
Trichoderma harzianum inhibited F. lamoensis in vitro with a 10 to 16 mm zone.
- Taxon
- Teat0
- Treatment
- Trichoderma harzianume0
- Interactor
- F. lamoensise0pathogen
- Second interactor
- Trichoderma harzianum
Trichoderma harzianume0biocontrol_agent - Outcome
- inhibited F. lamoensise0
- Direction
- inhibitede0
- Value
- 10 to 16 mme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus cereus and Trichoderma harzianum were also evaluated and efficiently inhibited F. lamoensis in vitro. The zone of inhibition varied from 10 to 15 mm in case of B. cereus and 10 to 16 mm in case of T. harzianum.”
t0“Tea”
Claim · model-written summary
Tea plants inoculated with the pathogen had 76.66% disease incidence at 120 days.
Verbatim
e0“tea plants at 120 days after the treatment (DAT) with the pathogen showed 76.66% disease incidence.”
e1“Brown root rot disease caused by Fomes lamoensis”
Claim · model-written summary
B. cereus treatment reduced tea disease incidence to 23.33%.
- Taxon
- Teat0
- Treatment
- B. cereuse0
- Interactor
- Fomes lamoensise1pathogen
- Second interactor
- B. cereusBacillus cereuse0biocontrol_agent
- Outcome
- disease incidencee0
- Direction
- reductione0
- Value
- 23.33%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in disease incidence (23.33% and 13.25% respectively) was observed when the plants were treated with biocontrol agents i.e.B. cereus and T. harzianum.”
e1“Brown root rot disease caused by Fomes lamoensis”
t0“Tea”
Claim · model-written summary
T. harzianum treatment reduced tea disease incidence to 13.25%.
- Taxon
- Teat0
- Treatment
- T. harzianume0
- Interactor
- Fomes lamoensise1pathogen
- Second interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- disease incidencee0
- Direction
- reductione0
- Value
- 13.25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in disease incidence (23.33% and 13.25% respectively) was observed when the plants were treated with biocontrol agents i.e.B. cereus and T. harzianum.”
e1“Brown root rot disease caused by Fomes lamoensis”
t0“Tea”
Claim · model-written summary
Chemically treated tea plants had 10% disease incidence.
- Taxon
- Teat0
- Treatment
- chemically treatede0
- Interactor
- Fomes lamoensise1pathogen
- Outcome
- disease incidencee0
- Value
- 10%e0
Not reportedComparatorDirection
Verbatim
e0“In case of chemically treated plants only 10% disease incidence was observed.”
t0“Tea”
e1“Brown root rot disease caused by Fomes lamoensis”
Claim · model-written summary
Chemical and biocontrol treatments significantly affected tea disease incidence and promoted growth over the control.
Verbatim
e0“both the chemicals and biocontrol agents significantly affected incidence of disease and promoted growth of tea measured in terms of shoot height, root length, number of new leaves, lateral branches, biomass of shoot and root over the control.”
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biocontrol · growth · Camellia sinensis (black tea)Results agree
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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.