Abstract
Field and greenhouse experiments showed that yield losses of sugarbeet, Beta vulgaris, did not occur in soil infested with fewer than eight Heterodera schachtii eggs/g soil. However, larger population densities greatly reduced sugarbeet yield. In the field experiment, the yield in microplots inoculated with more than 64 eggs/g soil was less than 20% of yields in uninoculated microplots. Nevertheless, tolerance limits of 4 and 1.8 eggs/g soil, in greenhouse and field microplots, respectively, were derived by fitting the data with the equation y =m + (l - m)z(P-T). Maximum rates of multiplication of 55 and more than 300, and equilibrium densities of 340 and 130 eggs/g soil, were estimated in greenhouse and field microplot tests, respectively.
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Claims 9
Claim · model-written summary
Sugarbeet had no yield loss below eight Heterodera schachtii eggs per gram of soil.
- Taxon
- sugarbeet
Beta vulgaris subsp. vulgarise0 - Interactor
- Heterodera schachtiiHeterodera schachtiie0pathogen
- Outcome
- yield lossese0
- Direction
- did not occure0
- Qualifier
- fewer than eight Heterodera schachtii eggs/g soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield losses of sugarbeet, Beta vulgaris, did not occur in soil infested with fewer than eight Heterodera schachtii eggs/g soil”
Claim · model-written summary
Larger nematode populations greatly reduced sugarbeet yield.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- sugarbeet yielde0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“larger population densities greatly reduced sugarbeet yield”
t0“Sugarbeet”
t1“Heterodera schachtii”
Claim · model-written summary
Field microplots inoculated with more than 64 eggs per gram of soil yielded less than 20% of uninoculated microplots.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Treatment
- inoculated with more than 64 eggs/g soile0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- yielde0
- Direction
- less thane0
- Value
- 20%e0
- Comparator
- uninoculated microplotse0
- Setting
- microplotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yield in microplots inoculated with more than 64 eggs/g soil was less than 20% of yields in uninoculated microplots”
t0“Sugarbeet”
t1“Heterodera schachtii”
Claim · model-written summary
The derived tolerance limit was 4 eggs per gram of soil in greenhouse microplots.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- tolerance limitse0
- Value
- 4e0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tolerance limits of 4 and 1.8 eggs/g soil, in greenhouse and field microplots, respectively”
t0“Sugarbeet”
t1“Heterodera schachtii”
Claim · model-written summary
The derived tolerance limit was 1.8 eggs per gram of soil in field microplots.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- tolerance limitse0
- Value
- 1.8 eggs/g soile0
- Setting
- field microplotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tolerance limits of 4 and 1.8 eggs/g soil, in greenhouse and field microplots, respectively”
t0“Sugarbeet”
t1“Heterodera schachtii”
Claim · model-written summary
Maximum nematode multiplication was estimated at 55 in greenhouse tests.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- Maximum rates of multiplicatione0
- Value
- 55e0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum rates of multiplication of 55 and more than 300, and equilibrium densities of 340 and 130 eggs/g soil, were estimated in greenhouse and field microplot tests, respectively”
t0“Sugarbeet”
t1“Heterodera schachtii”
Claim · model-written summary
Maximum nematode multiplication was estimated at more than 300 in field microplots.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- Maximum rates of multiplicatione0
- Value
- more than 300e0
- Setting
- field microplot testse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum rates of multiplication of 55 and more than 300, and equilibrium densities of 340 and 130 eggs/g soil, were estimated in greenhouse and field microplot tests, respectively”
t0“Sugarbeet”
t1“Heterodera schachtii”
Claim · model-written summary
Nematode equilibrium density was estimated at 340 eggs per gram of soil in greenhouse tests.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- equilibrium densitiese0
- Value
- 340e0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“equilibrium densities of 340 and 130 eggs/g soil, were estimated in greenhouse and field microplot tests, respectively”
t0“Sugarbeet”
t1“Heterodera schachtii”
Claim · model-written summary
Nematode equilibrium density was estimated at 130 eggs per gram of soil in field microplots.
- Taxon
- SugarbeetBeta vulgaris subsp. vulgarist0
- Interactor
- Heterodera schachtiiHeterodera schachtiit1
- Outcome
- equilibrium densitiese0
- Value
- 130 eggs/g soile0
- Setting
- field microplot testse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“equilibrium densities of 340 and 130 eggs/g soil, were estimated in greenhouse and field microplot tests, respectively”
t0“Sugarbeet”
t1“Heterodera schachtii”
The same questions in other papers
inoculation · Heterodera schachtii · Beta vulgaris (beet)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
1 paper more in this group
See all 5 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.