Abstract
The European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), is one of the most important pests of corn, Zea mays L., because it consistently causes high loss of yield. A study was conducted in 2000–2002 at field sites in central and western Kentucky to investigate whether infestation by O. nubilalis differentially affects the production of high-oil corn compared with traditional field corn. Statistical differences in grain weight and percentage of oil content between the five infestation levels were significant at both locations and for all years. Average grain yield was reduced by 0.40% and average oil concentration by 0.011% for each 1% of damaged plants, and there was a strong correlation (0.76) between leaf damage ratings (i.e., Guthrie scale) and yield reduction. In general, corn planted at the early planting date tended to have a higher yield (grain weight) and oil content.
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Claims 7
Claim · model-written summary
Grain weight differed significantly among five borer infestation levels at both locations in all years.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- five infestation levelse0
- Outcome
- grain weighte0
- Qualifier
- both locations and for all yearse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Statistical differences in grain weight and percentage of oil content between the five infestation levels were significant at both locations and for all years”
t0“High Oil Content Corn Grown in Kentucky”
Claim · model-written summary
Oil percentage differed significantly among five borer infestation levels at both locations in all years.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- five infestation levelse0
- Outcome
- percentage of oil contente0
- Qualifier
- both locations and for all yearse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Statistical differences in grain weight and percentage of oil content between the five infestation levels were significant at both locations and for all years”
t0“High Oil Content Corn Grown in Kentucky”
Claim · model-written summary
Average corn grain yield declined 0.40% per 1% damaged plants.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- Average grain yielde0
- Direction
- reducede0
- Value
- 0.40%e0
- Comparator
- 1% of damaged plantse0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average grain yield was reduced by 0.40% and average oil concentration by 0.011% for each 1% of damaged plants”
t0“High Oil Content Corn Grown in Kentucky”
Claim · model-written summary
Average corn oil concentration declined 0.011% per 1% damaged plants.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- average oil concentratione0
- Direction
- reducede0
- Value
- 0.011%e0
- Comparator
- 1% of damaged plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average grain yield was reduced by 0.40% and average oil concentration by 0.011% for each 1% of damaged plants”
t0“High Oil Content Corn Grown in Kentucky”
Claim · model-written summary
Leaf damage ratings correlated strongly with yield reduction, at 0.76.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- yield reductione0
- Value
- 0.76e0
- Comparator
- leaf damage ratings (i.e., Guthrie scale)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a strong correlation (0.76) between leaf damage ratings (i.e., Guthrie scale) and yield reduction”
t0“High Oil Content Corn Grown in Kentucky”
Claim · model-written summary
Earlier planting tended to increase corn grain weight.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- early planting datee0
- Outcome
- yield (grain weight)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn planted at the early planting date tended to have a higher yield (grain weight) and oil content”
Claim · model-written summary
Earlier planting tended to increase corn oil content.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- early planting datee0
- Outcome
- oil contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn planted at the early planting date tended to have a higher yield (grain weight) and oil content”
The same questions in other papers
sowing time · quality: oil · Zea mays (maize)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
sowing time · yield · Zea mays (maize)Positive and negative results
177 papers in the same direction as this paper · 89 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- negative
265 papers more in this group
See all 269 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.