Abstract
Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system despite the higher incidence of johnsongrass, Sorghum halepense (L.) Per. (a reservoir of the virus) and greater leafhopper populations in no-tillage. Incidence of maize dwarf mosaic (MDM) may have been increased in no-tillage. The predominant role of the blackfaced leafhopper, Graminella nigrifrons (Forbes), as a vector of MCD was demonstrated by its strong correlation with the disease in the various experimental systems. G. nigrifrons populations were reduced by carbofuran, and this was highly correlated with reduction of MCD and improved yield. Hybrid resistance to MCD was important for optimum yield, however, carbofuran increased the yield of a susceptible hybrid to untreated levels of resistant hybrids. Lesion nematodes, Pralylenchus zeae Graham, and spiral nematodes, Helicotylenchus spp., were reduced somewhat in carbofuran treatments, but populations were not influenced by hybrids or methods of tillage.
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Claims 10
Claim · model-written summary
No-tillage did not significantly increase yield loss from maize chlorotic dwarf compared with conventional tillage.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- no-tillagee0
- Interactor
- maize chlorotic dwarfe0pathogen
- Outcome
- Yield losse0
- Direction
- not significantly increasede0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
Claim · model-written summary
Johnsongrass incidence was higher in no-tillage corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- no-tillagee1
- Outcome
- incidence of johnsongrasse1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e1“despite the higher incidence of johnsongrass, Sorghum halepense (L.) Per. (a reservoir of the virus) and greater leafhopper populations in no-tillage”
Claim · model-written summary
Maize dwarf mosaic incidence may have increased in no-tillage.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- no-tillagee2
- Interactor
- maize dwarf mosaice2pathogen
- Outcome
- Incidence of maize dwarf mosaic (MDM)e2
- Direction
- increasede2
- Qualifier
- may have beene2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e2“Incidence of maize dwarf mosaic (MDM) may have been increased in no-tillage”
Claim · model-written summary
Graminella nigrifrons has the predominant role as a vector of MCD.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- Graminella nigrifrons
Graminella nigrifronse3pest - Outcome
- vector of MCDe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e3“The predominant role of the blackfaced leafhopper, Graminella nigrifrons (Forbes), as a vector of MCD was demonstrated by its strong correlation with the disease in the various experimental systems”
Claim · model-written summary
Carbofuran reduced G. nigrifrons populations.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- carbofurane4
- Interactor
- G. nigrifronsGraminella nigrifronse4pest
- Outcome
- populationse4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e4“G. nigrifrons populations were reduced by carbofuran, and this was highly correlated with reduction of MCD and improved yield”
Claim · model-written summary
Carbofuran-linked reduction of G. nigrifrons was highly correlated with improved yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- carbofurane4
- Interactor
- G. nigrifronsGraminella nigrifronse4pest
- Outcome
- yielde4
- Direction
- improvede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e4“G. nigrifrons populations were reduced by carbofuran, and this was highly correlated with reduction of MCD and improved yield”
Claim · model-written summary
Carbofuran raised yield of a susceptible hybrid to the untreated level of resistant hybrids.
- Taxon
- cornZea mays subsp. mayse0
- Material
- susceptible hybride5
- Treatment
- carbofurane5
- Outcome
- yield of a susceptible hybride5
- Direction
- increasede5
- Comparator
- untreated levels of resistant hybridse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e5“Hybrid resistance to MCD was important for optimum yield, however, carbofuran increased the yield of a susceptible hybrid to untreated levels of resistant hybrids”
Claim · model-written summary
Hybrid resistance to MCD was important for optimum yield.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- optimum yielde5
- Qualifier
- Hybrid resistance to MCDe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e5“Hybrid resistance to MCD was important for optimum yield, however, carbofuran increased the yield of a susceptible hybrid to untreated levels of resistant hybrids”
Claim · model-written summary
Carbofuran reduced somewhat the lesion and spiral nematode populations.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- carbofuran treatmentse6
- Interactor
- Pralylenchus zeae Grahame6pest
- Second interactor
- Helicotylenchus spp.
Helicotylenchuse6pest - Outcome
- populationse6
- Direction
- reduced somewhate6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e6“Lesion nematodes, Pralylenchus zeae Graham, and spiral nematodes, Helicotylenchus spp., were reduced somewhat in carbofuran treatments, but populations were not influenced by hybrids or methods of tillage”
Claim · model-written summary
Lesion nematode populations were not influenced by hybrids or tillage method.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- Pralylenchus zeae Grahame6pest
- Outcome
- populationse6
- Qualifier
- not influenced by hybrids or methods of tillagee6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield loss from maize chlorotic dwarf (MCD) infection was not significantly increased in a no-tillage compared to a conventional tillage corn cropping system”
e6“Lesion nematodes, Pralylenchus zeae Graham, and spiral nematodes, Helicotylenchus spp., were reduced somewhat in carbofuran treatments, but populations were not influenced by hybrids or methods of tillage”
The same questions in other papers
carbofuran · pest · Zea mays (maize)Positive and negative results
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- negative
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tillage · yield · Zea mays (maize)Positive and negative results
286 papers in the same direction as this paper · 812 reporting no difference from an alternative
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See all 1,099 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.