Abstract
An experiment was carried out under glasshouse conditions to determine the effect of organic crab shell chitin @ 1% (w/w) and chitinolytic biocontrol agents (Pseudomonas fluorescens @ 2.5kg/ha, Trichoderma viride @ 2.5kg/ha) on growth of groundnut cv. Co3 and on population of bacteria, fungi, actinomycetes and root knot nematode, Meloidogyne arenaria. Soil application of chitin and chitinolytic biocontrol agents promoted the plant growth to the tune of 39.7% and also increased the yield of groundnut up to 27.8% compared to control. Number of galls per plant were low in treatment with soil amended with chitin and chitinolyticbiocontrol agents. The gall numbers per plant was negatively correlated with accumulation of total phenols and activities of peroxidase and chitinase in leaf. Chitin application not only reduced the soil nematode population but also enhanced the soil microbial activity up to 55%. The possible mode of action of chitin and chitinolytic biocontrol agents on nematodes especially on nematode egg and Induced Systemic Resistance (ISR) in groundnut due to biocontrol agents were discussed.
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Claims 6
Claim · model-written summary
Soil application of chitin and biocontrol agents increased groundnut growth by 39.7% compared with control.
- Taxon
- groundnut
Arachis hypogaeae2 - Treatment
- Soil application of chitin and chitinolytic biocontrol agentse2
- Interactor
- Pseudomonas fluorescens
.JPG?width=60)
Pseudomonas fluorescense1biocontrol_agent - Second interactor
- Trichoderma viride
Trichoderma viridee1biocontrol_agent - Outcome
- plant growthe2
- Direction
- promotede2
- Value
- 39.7%e2
- Comparator
- controle2
- Setting
- glasshouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“An experiment was carried out under glasshouse conditions”
e1“chitinolytic biocontrol agents (Pseudomonas fluorescens @ 2.5kg/ha, Trichoderma viride @ 2.5kg/ha)”
e2“Soil application of chitin and chitinolytic biocontrol agents promoted the plant growth to the tune of 39.7% and also increased the yield of groundnut up to 27.8% compared to control”
Claim · model-written summary
Soil application of chitin and biocontrol agents increased groundnut yield by 27.8% compared with control.
- Taxon
- groundnutArachis hypogaeae2
- Treatment
- Soil application of chitin and chitinolytic biocontrol agentse2
- Interactor
- Pseudomonas fluorescensPseudomonas fluorescense1biocontrol_agent
- Second interactor
- Trichoderma virideTrichoderma viridee1biocontrol_agent
- Outcome
- yield of groundnute2
- Direction
- increasede2
- Value
- 27.8%e2
- Comparator
- controle2
- Setting
- glasshouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out under glasshouse conditions”
e1“chitinolytic biocontrol agents (Pseudomonas fluorescens @ 2.5kg/ha, Trichoderma viride @ 2.5kg/ha)”
e2“Soil application of chitin and chitinolytic biocontrol agents promoted the plant growth to the tune of 39.7% and also increased the yield of groundnut up to 27.8% compared to control”
Claim · model-written summary
Chitin and chitinolytic biocontrol agents lowered Meloidogyne arenaria gall numbers per plant.
- Taxon
- groundnutArachis hypogaeae2
- Treatment
- soil amended with chitin and chitinolytic biocontrol agentse3
- Interactor
- Meloidogyne arenaria
.jpg?width=60)
Meloidogyne arenariat0pest - Second interactor
- Trichoderma virideTrichoderma viridee1biocontrol_agent
- Outcome
- Number of galls per plante3
- Direction
- lowe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Meloidogyne arenaria”
e1“chitinolytic biocontrol agents (Pseudomonas fluorescens @ 2.5kg/ha, Trichoderma viride @ 2.5kg/ha)”
e2“Soil application of chitin and chitinolytic biocontrol agents promoted the plant growth to the tune of 39.7% and also increased the yield of groundnut up to 27.8% compared to control”
e3“Number of galls per plant were low in treatment with soil amended with chitin and chitinolytic biocontrol agents”
Claim · model-written summary
Gall numbers per plant were negatively correlated with leaf total phenols, peroxidase and chitinase activities.
- Taxon
- groundnutArachis hypogaeae2
- Organ / stage
- leafe4
- Outcome
- accumulation of total phenols and activities of peroxidase and chitinasee4
- Direction
- negatively correlatede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Soil application of chitin and chitinolytic biocontrol agents promoted the plant growth to the tune of 39.7% and also increased the yield of groundnut up to 27.8% compared to control”
e4“The gall numbers per plant was negatively correlated with accumulation of total phenols and activities of peroxidase and chitinase in leaf”
Claim · model-written summary
Chitin application reduced the soil nematode population.
- Taxon
- groundnutArachis hypogaeae2
- Treatment
- Chitin applicatione5
- Interactor
- soil nematodee5pest
- Outcome
- soil nematode populatione5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Soil application of chitin and chitinolytic biocontrol agents promoted the plant growth to the tune of 39.7% and also increased the yield of groundnut up to 27.8% compared to control”
e5“Chitin application not only reduced the soil nematode population but also enhanced the soil microbial activity up to 55%”
Claim · model-written summary
Chitin application enhanced soil microbial activity by 55%.
- Taxon
- groundnutArachis hypogaeae2
- Treatment
- Chitin applicatione5
- Outcome
- soil microbial activitye5
- Direction
- enhancede5
- Value
- 55%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Soil application of chitin and chitinolytic biocontrol agents promoted the plant growth to the tune of 39.7% and also increased the yield of groundnut up to 27.8% compared to control”
e5“Chitin application not only reduced the soil nematode population but also enhanced the soil microbial activity up to 55%”
The same questions in other papers
biocontrol · Meloidogyne arenaria · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
resistance inducer · Meloidogyne arenaria · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
resistance inducer · pest · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
resistance inducer · soil: biology · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
application · Pseudomonas fluorescens · Arachis hypogaea (peanut)Results agree
2 papers in the same direction as this paper
- positive
- 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.