Abstract
Abstract Early leaf spot is a common disease of peanut caused by the fungus Cercospora arachidicola Hori. Experiments were conducted to evaluate the effect of postemergence herbicides on the conidial germination of C. arachidicola and on the incidence of early leaf spot disease in peanut (Arachis hypogaea L.) in a greenhouse. Conidial germination was enhanced (≥ 100%) at concentrations of 1, 100, and 1000 mg/L of 2,4-DB compared with the untreated control. Lactofen reduced conidial germination by 42% compared with the control at concentrations as low as 100 mg/L and completely inhibited germination at concentrations ≥ 5000 mg/L. A concentration of 10,000 mg/L acifluorfen and 2,4-DB completely inhibited conidial germination. Acifluorfen, acifluorfen plus 2,4-DB, and lactofen decreased the sporulation of early leaf spot lesions. Lactofen reduced leaf spot incidence 12% and decreased sporulation of lesions 22% compared with the control. None of the herbicides increased the incidence of early leaf spot on peanut plants or the number of early leaf spot lesions per leaflet when compared with plants that received no herbicide.
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Claims 10
Claim · model-written summary
2,4-DB enhanced conidial germination by at least 100% at three concentrations.
- Taxon
- Peanut
Arachis hypogaeat0 - Treatment
- 2,4-DBe0
- Interactor
- Cercospora arachidicola HoriMycosphaerella arachidist0pathogen
- Outcome
- Conidial germinatione0
- Direction
- enhancede0
- Value
- ≥ 100%e0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conidial germination was enhanced (≥ 100%) at concentrations of 1, 100, and 1000 mg/L of 2,4-DB compared with the untreated control”
t0“Cercospora arachidicola Hori and Early Leaf Spot of Peanut”
Claim · model-written summary
Lactofen reduced fungal conidial germination by 42% at 100 mg/L.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Lactofene0
- Outcome
- conidial germinatione0
- Direction
- reducede0
- Value
- 42%e0
- Qualifier
- 100 mg/Le0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lactofen reduced conidial germination by 42% compared with the control at concentrations as low as 100 mg/L”
t0“Peanut”
Claim · model-written summary
Lactofen completely inhibited conidial germination at at least 5000 mg/L.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Lactofene0
- Outcome
- germinatione0
- Direction
- completely inhibitede0
- Qualifier
- ≥ 5000 mg/Le0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lactofen reduced conidial germination by 42% compared with the control at concentrations as low as 100 mg/L and completely inhibited germination at concentrations ≥ 5000 mg/L”
t0“Peanut”
Claim · model-written summary
Acifluorfen at 10,000 mg/L completely inhibited conidial germination.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- 10,000 mg/L acifluorfene0
- Outcome
- conidial germinatione0
- Direction
- completely inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A concentration of 10,000 mg/L acifluorfen and 2,4-DB completely inhibited conidial germination”
t0“Peanut”
Claim · model-written summary
2,4-DB at 10,000 mg/L completely inhibited conidial germination.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- 2,4-DBe0
- Outcome
- conidial germinatione0
- Direction
- completely inhibitede0
- Qualifier
- 10,000 mg/Le0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A concentration of 10,000 mg/L acifluorfen and 2,4-DB completely inhibited conidial germination”
t0“Peanut”
Claim · model-written summary
Acifluorfen decreased sporulation of early leaf spot lesions.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Acifluorfene0
- Outcome
- sporulation of early leaf spot lesionse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acifluorfen, acifluorfen plus 2,4-DB, and lactofen decreased the sporulation of early leaf spot lesions”
t0“Peanut”
Claim · model-written summary
Acifluorfen plus 2,4-DB decreased lesion sporulation.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- acifluorfen plus 2,4-DBe0
- Outcome
- sporulation of early leaf spot lesionse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acifluorfen, acifluorfen plus 2,4-DB, and lactofen decreased the sporulation of early leaf spot lesions”
t0“Peanut”
Claim · model-written summary
Lactofen reduced early leaf spot incidence by 12%.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Lactofene0
- Outcome
- leaf spot incidencee0
- Direction
- reducede0
- Value
- 12%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lactofen reduced leaf spot incidence 12% and decreased sporulation of lesions 22% compared with the control”
t0“Peanut”
Claim · model-written summary
Lactofen decreased lesion sporulation by 22%.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Lactofene0
- Outcome
- sporulation of lesionse0
- Direction
- decreasede0
- Value
- 22%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lactofen reduced leaf spot incidence 12% and decreased sporulation of lesions 22% compared with the control”
t0“Peanut”
Claim · model-written summary
None of the herbicides increased early leaf spot incidence or lesion counts.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- herbicidese0
- Outcome
- incidence of early leaf spot on peanut plants or the number of early leaf spot lesions per leaflete0
- Direction
- None of the herbicides increasede0
- Comparator
- plants that received no herbicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the herbicides increased the incidence of early leaf spot on peanut plants or the number of early leaf spot lesions per leaflet when compared with plants that received no herbicide”
The same questions in other papers
herbicide · disease · Arachis hypogaea (peanut)Positive and negative results
2 in the opposite direction
- 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.