Abstract
A mixture of four isolates of Fusarium oxysporum, the causal agent of cotton damping-off, five biocontrol agents (Bacillus subtilis, Pseudomonas fluorescens, Streptomyces griseus, Trichoderma harzianum and Trichoderma viride), and fungicide Monceren were evaluated on cotton cultivar Giza 90 (Gossypium barbadense L.) in the presence and absence of humic acid (potassium humates) which was applied as soil drench. The disease incidence was evaluated as seedling survival, plant height, and dry weight. Activities of some oxidative enzymes (peroxidase, polyphenoloxidase and catalase) were also evaluated. The results showed that humic acid caused deleterious effects on seedling stand, plant height and dry weight of cotton cultivar Giza 90. The application of some biocontrol agents negated these deleterious effects. Therefore, from practical stand point, it is not desirable to use humic acid if the soil is infested with Fusarium oxysporum. If it is necessary to use humic acid; this should be accompanied by the application of suitable biocontrol agent
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Humic acid had deleterious effects on seedling stand, plant height and dry weight of cotton cultivar Giza 90 relative to treatment without humic acid.
- Taxon
- cotton
Gossypium hirsutume1 - Material
- Giza 90e1
- Treatment
- humic acide2
- Outcome
- seedling stand, plant height and dry weighte2
- Direction
- decreaseinferrede2
- Comparator
- absence of humic acide3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“cotton cultivar Giza 90 (Gossypium barbadense L.)”
e2“The results showed that humic acid caused deleterious effects on seedling stand, plant height and dry weight of cotton cultivar Giza 90”
e3“in the presence and absence of humic acid”
Claim · model-written summary
Application of some biocontrol agents negated the deleterious effects of humic acid on cotton seedlings.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- application of some biocontrol agentse4
- Outcome
- deleterious effectse4
- Direction
- negatede4
- Comparator
- humic acide2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“cotton cultivar Giza 90 (Gossypium barbadense L.)”
e2“The results showed that humic acid caused deleterious effects on seedling stand, plant height and dry weight of cotton cultivar Giza 90”
e4“The application of some biocontrol agents negated these deleterious effects”
Claim · model-written summary
Using humic acid is not desirable where the soil is infested with Fusarium oxysporum.
- Taxon
- cottonGossypium hirsutume1
- Interactor
- Fusarium oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume5pathogen - Outcome
- use humic acide5
- Qualifier
- if the soil is infested with Fusarium oxysporume5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e1“cotton cultivar Giza 90 (Gossypium barbadense L.)”
e5“it is not desirable to use humic acid if the soil is infested with Fusarium oxysporum”
Claim · model-written summary
If humic acid must be used, it should be accompanied by a suitable biocontrol agent.
- Taxon
- cottonGossypium hirsutume1
- Outcome
- application of suitable biocontrol agente6
- Qualifier
- If it is necessary to use humic acide6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“cotton cultivar Giza 90 (Gossypium barbadense L.)”
e6“If it is necessary to use humic acid; this should be accompanied by the application of suitable biocontrol agent”
The same questions in other papers
other · growth · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 17 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 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.