Abstract
Humic acid, a natural by-product from lignite coals, was evaluated for its potential to control root-knot nematode, Meloidogyne incogntia infecting banana. Hatching of M. incognita eggs was inhibited 50%–100% following incubation in 0.08%-2.0% humic acid in vitro. Exposure of juveniles (J2) of M. incognita to different humic acid concentrations significantly affected the mobility of J2 in vitro. The percent immobility of J2 increased with concentrations of humic acid up to 0.08%. In pot experiments, soil treatment with humic acid reduced the root galling in banana plantlets. All the humic acid tested concentrations (0.04%, 0.08%, 0.2% and 0.4%) significantly reduced the nematode soil density by 53.5%–56.7%, root infection by 61.9%–63.8%, egg population by 61.9%–63.8% and reproduction rate by 55.7%–56.6%. A significant improvement of growth of banana plantlets in terms of number of leaves, pseudostem height, girth, weight, root length and weight was noticed in humic acid treated pots. Humic acid did not suppress growth of the biocontrol agents Pseudomonas fluorescens and Trichoderma viride in vitro. Results suggest that soil treatment with humic acid at 0.04% not only offers significant nematode control but also improves growth of banana.
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Claims 10
Claim · model-written summary
Hatching of M. incognita eggs was inhibited by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- M. incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pathogen - Outcome
- Hatching of M. incognita eggse0
- Direction
- inhibitede0
- Value
- 50%–100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“Hatching of M. incognita eggs was inhibited 50%–100% following incubation in 0.08%-2.0% humic acid in vitro”
Claim · model-written summary
mobility of J2 was affected by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- M. incognitaMeloidogyne incognitae0pathogen
- Outcome
- mobility of J2e0
- Direction
- affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“Exposure of juveniles (J2) of M. incognita to different humic acid concentrations significantly affected the mobility of J2 in vitro”
Claim · model-written summary
percent immobility of J2 was increased by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat1pathogen
- Outcome
- percent immobility of J2e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“The percent immobility of J2 increased with concentrations of humic acid up to 0.08%”
Claim · model-written summary
root galling was reduced by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat1pathogen
- Outcome
- root gallinge0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“soil treatment with humic acid reduced the root galling in banana plantlets”
Claim · model-written summary
nematode soil density was reduced by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat1pathogen
- Outcome
- nematode soil densitye0
- Direction
- reducede0
- Value
- 53.5%–56.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“All the humic acid tested concentrations (0.04%, 0.08%, 0.2% and 0.4%) significantly reduced the nematode soil density by 53.5%–56.7%, root infection by 61.9%–63.8%, egg population by 61.9%–63.8% and reproduction rate by 55.7%–56.6%”
Claim · model-written summary
root infection was reduced by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat1pathogen
- Outcome
- root infectione0
- Direction
- reducede0
- Value
- 61.9%–63.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“All the humic acid tested concentrations (0.04%, 0.08%, 0.2% and 0.4%) significantly reduced the nematode soil density by 53.5%–56.7%, root infection by 61.9%–63.8%, egg population by 61.9%–63.8% and reproduction rate by 55.7%–56.6%”
Claim · model-written summary
egg population was reduced by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat1pathogen
- Outcome
- egg populatione0
- Direction
- reducede0
- Value
- 61.9%–63.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“All the humic acid tested concentrations (0.04%, 0.08%, 0.2% and 0.4%) significantly reduced the nematode soil density by 53.5%–56.7%, root infection by 61.9%–63.8%, egg population by 61.9%–63.8% and reproduction rate by 55.7%–56.6%”
Claim · model-written summary
reproduction rate was reduced by humic acid.
- Taxon
- bananat0
- Treatment
- humic acide0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat1pathogen
- Outcome
- reproduction ratee0
- Direction
- reducede0
- Value
- 55.7%–56.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“banana (Musa spp.)”
t1“Meloidogyne incognita”
e0“All the humic acid tested concentrations (0.04%, 0.08%, 0.2% and 0.4%) significantly reduced the nematode soil density by 53.5%–56.7%, root infection by 61.9%–63.8%, egg population by 61.9%–63.8% and reproduction rate by 55.7%–56.6%”
Claim · model-written summary
Humic acid significantly improved banana leaf number, pseudostem size and weight, and root length and weight.
Not reportedComparator
Verbatim
t0“banana (Musa spp.)”
e0“A significant improvement of growth of banana plantlets in terms of number of leaves, pseudostem height, girth, weight, root length and weight was noticed in humic acid treated pots”
Claim · model-written summary
Humic acid did not suppress growth of the tested biocontrol agents in vitro.
Verbatim
t0“banana (Musa spp.)”
e0“Humic acid did not suppress growth of the biocontrol agents Pseudomonas fluorescens and Trichoderma viride in vitro”
The same questions in other papers
other · growth · MusaPositive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
4 papers more in this group
See all 8 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.