Abstract
Three steamed soils, limed and not limed, two hosts, and one isolate of Pythium ultimum were used in an experiment. The organism, isolated from peas germinating in limed Belanglo soil, was pathogenic to both hosts. The incidence of seedling blight of peas in the three reinfested soils varied significantly. On poppy, on two of the reinfested soils, it also varied significantly, but inversely to the incidence on peas. On peas in the first sowing it was not affected by liming the soil; on poppy it was significantly reduced. Seedling blight of both hosts was associated with one organism. The contrasting results could not be correlated with the uniform conditions of soil temperature, air temperature, and soil moisture; on any one soil or soil treatment they could not be ascribed to the prevailing uniform aeration, reaction, microflora, and microbial antagonism The only conditioning factor that was varied was the steamed soil, or steamed soil modified by adding lime. Differences in the incidence of disease were associated with variation of the conditioning factor and the host. Seedling blight of peas, resulting from natural reinfestation, occurred in earlier resowings in limed than in unlimed soils. Physiogenic seedling blight of poppy also occurred, causing total loss on one soil and smaller percentages of loss on the other soils.
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Claims 8
Claim · model-written summary
Seedling blight of both opium poppy and peas was associated with Pythium ultimum.
- Taxon
- opium poppy and peas
Papaver somniferum
Lathyrus oleraceust0 - Interactor
- Pythium ultimumGlobisporangium ultimume0pathogen
- Outcome
- Seedling blighte5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“seedling blight of opium poppy and peas”
e0“Three steamed soils, limed and not limed, two hosts, and one isolate of Pythium ultimum were used in an experiment”
e5“Seedling blight of both hosts was associated with one organism”
Claim · model-written summary
Incidence of seedling blight in peas varied significantly across the three reinfested soils.
- Taxon
- peasLathyrus oleraceuse2
- Treatment
- reinfested soilse2
- Interactor
- Pythium ultimumGlobisporangium ultimume0pathogen
- Outcome
- incidence of seedling blighte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three steamed soils, limed and not limed, two hosts, and one isolate of Pythium ultimum were used in an experiment”
e2“The incidence of seedling blight of peas in the three reinfested soils varied significantly”
Claim · model-written summary
On poppy in two reinfested soils, seedling blight incidence varied significantly, inversely to incidence on peas.
Verbatim
e3“On poppy, on two of the reinfested soils, it also varied significantly, but inversely to the incidence on peas”
Claim · model-written summary
Liming the soil did not affect seedling blight on peas in the first sowing.
- Taxon
- peasLathyrus oleraceuse4
- Treatment
- liming the soile4
- Outcome
- Seedling blighte5
- Direction
- no_changeinferrede4
- Comparator
- not limede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three steamed soils, limed and not limed, two hosts, and one isolate of Pythium ultimum were used in an experiment”
e4“On peas in the first sowing it was not affected by liming the soil; on poppy it was significantly reduced”
e5“Seedling blight of both hosts was associated with one organism”
Claim · model-written summary
Liming the soil significantly reduced seedling blight on opium poppy.
Verbatim
e0“Three steamed soils, limed and not limed, two hosts, and one isolate of Pythium ultimum were used in an experiment”
e4“On peas in the first sowing it was not affected by liming the soil; on poppy it was significantly reduced”
e5“Seedling blight of both hosts was associated with one organism”
Claim · model-written summary
Seedling blight of peas from natural reinfestation was higher in limed than in unlimed soils in earlier resowings.
- Taxon
- peasLathyrus oleraceuse6
- Treatment
- limede6
- Outcome
- Seedling blighte6
- Direction
- higherinferrede6
- Qualifier
- in earlier resowingse6
- Comparator
- unlimed soilse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Seedling blight of peas, resulting from natural reinfestation, occurred in earlier resowings in limed than in unlimed soils”
Claim · model-written summary
Physiogenic seedling blight of poppy caused total loss on one soil and smaller losses on the other soils.
Verbatim
e7“Physiogenic seedling blight of poppy also occurred, causing total loss on one soil and smaller percentages of loss on the other soils”
Claim · model-written summary
The Pythium ultimum isolate was pathogenic to both hosts.
- Taxon
- opium poppy and peasPapaver somniferumLathyrus oleraceust0
- Interactor
- Pythium ultimumGlobisporangium ultimume0pathogen
- Outcome
- pathogenic to both hostse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“seedling blight of opium poppy and peas”
e0“Three steamed soils, limed and not limed, two hosts, and one isolate of Pythium ultimum were used in an experiment”
e1“The organism, isolated from peas germinating in limed Belanglo soil, was pathogenic to both hosts”
The same questions in other papers
lime · disease · Lathyrus oleraceus (pea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
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.