Abstract
Glasshouse trials were conducted in order to examine the effect of lime or gypsum amendments on the development of cavity spot disease of carrots in a field soil artificially infested with Pythium coloratum. Each amendment was applied to the soil at 4000 or 8000 kg ha-1. Only the lime applications significantly reduced the incidence of cavity spot disease. In unamended soil, the calcium concentration of carrot roots was significantly less than that of carrots grown in amended soils. There were no significant differences in the calcium concentration of carrot roots grown in soils with lime or gypsum added in the presence or absence of the pathogen. Calcium did not appear to play a direct role in the reduction of cavity spot disease. Reduction of the incidence of cavity spot appeared to be related to the increase in soil pH associated with the application of lime.
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Claims 5
Claim · model-written summary
Lime significantly reduced cavity spot incidence.
- Taxon
- carrots
Daucus carotat0 - Treatment
- lime applicationse0
- Interactor
- Pythium coloratumPythium coloratumt0pathogen
- Outcome
- incidence of cavity spot diseasee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only the lime applications significantly reduced the incidence of cavity spot disease.”
t0“carrots caused by Pythium coloratum”
Claim · model-written summary
Calcium concentration was lower in unamended carrot roots than amended roots.
- Taxon
- carrotsDaucus carotae0
- Outcome
- calcium concentration of carrot rootse0
- Direction
- less thane0
- Comparator
- carrots grown in amended soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In unamended soil, the calcium concentration of carrot roots was significantly less than that of carrots grown in amended soils.”
Claim · model-written summary
Carrot root calcium did not differ significantly between lime and gypsum soils.
- Taxon
- carrotDaucus carotae0
- Treatment
- limee0
- Outcome
- calcium concentration of carrot rootse0
- Direction
- no significant differencese0
- Comparator
- gypsume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences in the calcium concentration of carrot roots grown in soils with lime or gypsum added in the presence or absence of the pathogen.”
Claim · model-written summary
Calcium was not judged to directly explain reduced cavity spot.
- Taxon
- carrotsDaucus carotat0
- Interactor
- Pythium coloratumPythium coloratumt0pathogen
- Compound
- Calciume0
- Outcome
- reduction of cavity spot diseasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium did not appear to play a direct role in the reduction of cavity spot disease.”
t0“carrots caused by Pythium coloratum”
Claim · model-written summary
Reduced cavity spot incidence appeared related to lime-associated soil pH increase.
- Taxon
- carrotsDaucus carotat0
- Treatment
- application of limee0
- Interactor
- Pythium coloratumPythium coloratumt0pathogen
- Outcome
- incidence of cavity spote0
- Direction
- Reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduction of the incidence of cavity spot appeared to be related to the increase in soil pH associated with the application of lime.”
t0“carrots caused by Pythium coloratum”
The same questions in other papers
lime · nutrient: content · Daucus carota (carrot)Positive and negative results
1 reporting no difference from an alternative
- positive
lime · Pythium coloratum · Daucus carota (carrot)Results agree
2 papers in the same direction as this paper
- 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.