By interacting organism as written › O. graminis

Observationobservedoriginal resultmeasured

Claim · model-written summary

The pathogen declined in long-term wheat monocultures.

Taxon: wheatTriticum aestivume0
Interactor: O. graminisGaeumannomyces graminise0pathogen
Outcome: O. graminis declinese0
Direction: declinese0

Verbatim

e0
“O. graminis declines spontaneously in long‐term wheat monocultures as a consequence of the intensified development and activity of antagonistic microflora”
✓ located verbatim in the source · abstract, characters 34–188

Title

The Influence of Micro‐organisms Following Ophiobolus graminis Sacc. on its Further Pathogenecity

Z. Vojinovic EPPO Bulletin 1973. doi:10.1111/j.1365-2338.1973.tb02106.x

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Microflora on infected material inhibited pathogen activity, hyphal branching and infectious hyphae production.

Taxon: wheatTriticum aestivume7
Interactor: O. graminisGaeumannomyces graminise0pathogen
Outcome: parasitic activities of the pathogen, preventing hyphal branching by lysis and disturbing the production of infectious hyphaee0
Direction: inhibitse0

Verbatim

e0
“Microflora following O. graminis onto infected plant material inhibits the parasitic activities of the pathogen, preventing hyphal branching by lysis and disturbing the production of infectious hyphae.”
✓ located verbatim in the source · abstract, characters 673–874

e7
“long‐term wheat monocultures”
✓ located verbatim in the source · abstract, characters 72–100

Title

The Influence of Micro‐organisms Following Ophiobolus graminis Sacc. on its Further Pathogenecity

Z. Vojinovic EPPO Bulletin 1973. doi:10.1111/j.1365-2338.1973.tb02106.x

Other claims from this paper (5)

Observation The pathogen declined in long-term wheat monocultures.
Observation Decaying diseased plant material promoted antagonistic microflora more than healthy material.
Observation Tests did not confirm involvement of the same specific microflora in every case.
Observation New infected plant material was the main infection source for a new crop.
Observation Older plant material contained more active antagonists.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

No assimilate accumulation was found near O. graminis lesions.

Taxon: wheatTriticum aestivume0 t0
Interactor: O. graminisGaeumannomyces graminise0pathogen
Outcome: assimilatese0

Verbatim

e0
“There was no evidence that assimilates accumulated in the vicinity of O. graminis lesions.”
✓ located verbatim in the source · abstract, characters 437–527

t0
“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
✓ located verbatim in the source · title, characters 0–92

Title

Effect of Ophiobolus graminis infection on the assimilation and distribution of ¹⁴C in wheat

M. J. C. ASHER Annals of Applied Biology 1972. doi:10.1111/j.1744-7348.1972.tb01281.x

Other claims from this paper (7)

Observation Assimilates in infected wheat roots did not move past infection sites.
Observation Assimilates accumulated in undamaged infected roots, especially developing crown roots.
Intervention effect Infection did not significantly affect wheat net 14 CO 2 assimilation during five hours.
Intervention effect Infection reduced respiratory carbon loss.
Intervention effect Infection delayed assimilate transfer from the fed leaf to the rest of the plant.
Intervention effect Infection increased the proportion of assimilates sent to roots.
Intervention effect Continuous irrigation removed the infection-related increase in assimilate transport to roots.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Infection did not significantly affect wheat net 14 CO 2 assimilation during five hours.

Taxon: wheatTriticum aestivume0
Treatment: O. graminis infectione0
Interactor: O. graminisGaeumannomyces graminise0pathogen
Outcome: net assimilation of 14 CO 2e0
Direction: not significantly affectede0

Not reportedComparator

Verbatim

e0
“The net assimilation of 14 CO 2 by wheat plants over a 5 h feeding period was not significantly affected by O. graminis infection.”
✓ located verbatim in the source · abstract, characters 528–658

Title

Effect of Ophiobolus graminis infection on the assimilation and distribution of ¹⁴C in wheat

M. J. C. ASHER Annals of Applied Biology 1972. doi:10.1111/j.1744-7348.1972.tb01281.x

Other claims from this paper (7)

Observation Assimilates in infected wheat roots did not move past infection sites.
Observation Assimilates accumulated in undamaged infected roots, especially developing crown roots.
Observation No assimilate accumulation was found near O. graminis lesions.
Intervention effect Infection reduced respiratory carbon loss.
Intervention effect Infection delayed assimilate transfer from the fed leaf to the rest of the plant.
Intervention effect Infection increased the proportion of assimilates sent to roots.
Intervention effect Continuous irrigation removed the infection-related increase in assimilate transport to roots.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dazomet controlled Ophiobolus graminis best in both years of application.

Taxon: spring wheat and barleyHordeum vulgare Triticum aestivumt0
Treatment: Dazomete2
Interactor: O. graminisGaeumannomyces graminise2pathogen
Outcome: controlled O. graminise2
Direction: beste2
Qualifier: in both years of applicatione2

Not reportedComparator

Verbatim

t0
“yields of spring wheat and barley”
✓ located verbatim in the source · title, characters 127–160

e2
“Dazomet gave the best control of H. avenae in the first year and controlled O. graminis best in both years of application”
✓ located verbatim in the source · abstract, characters 512–633

Title

The effects of soil sterilants on the cereal cyst‐nematode (Heterodera avenae Woll.), take‐all (Ophiobolus graminis Sacc.) and yields of spring wheat and barley

T. D. WILLIAMS; G. A. SALT Annals of Applied Biology 1970. doi:10.1111/j.1744-7348.1970.tb06440.x

Other claims from this paper (12)

Intervention effect All soil sterilants except mercury decreased cereal cyst nematode numbers in the year they were applied.
Intervention effect All soil sterilants except mercury decreased take-all incidence in the year they were applied.
Intervention effect All soil sterilants except mercury increased crop yields in the year they were applied.
Intervention effect Dazomet gave the best control of Heterodera avenae in the first year.
Intervention effect In the third year, Ophiobolus graminis increased in all plots previously treated, except after two successive D-D treatments.
Intervention effect In the third year, Heterodera avenae increased only in plots treated with formalin.
Intervention effect Two formalin applications more than trebled the Heterodera avenae egg count by the end of the third year.
Intervention effect Two formalin applications depressed barley yield.
Intervention effect Two successive applications of chloropicrin gave the best nematode control.
Intervention effect Two applications of dazomet gave the largest aggregate straw yield over three years.
Intervention effect The best yields after treatment in the first year only were given by D-D and methyl bromide.
Intervention effect Soil sterilants had no detectable effect on other fungus diseases, including Fusarium foot rot and Pythium root rot.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

In the third year, Ophiobolus graminis increased in all plots previously treated, except after two successive D-D treatments.

Taxon: spring wheat and barleyHordeum vulgare Triticum aestivumt0
Treatment: previously treatede3
Interactor: O. graminisGaeumannomyces graminise3pathogen
Outcome: O. graminise3
Direction: increasede3
Qualifier: except after two successive D‐D treatmentse3

Not reportedComparator

Verbatim

t0
“yields of spring wheat and barley”
✓ located verbatim in the source · title, characters 127–160

e3
“In the third year, O. graminis increased in all plots previously treated (except after two successive D‐D treatments), but H. avenae increased only after formalin”
✓ located verbatim in the source · abstract, characters 635–797

Title

The effects of soil sterilants on the cereal cyst‐nematode (Heterodera avenae Woll.), take‐all (Ophiobolus graminis Sacc.) and yields of spring wheat and barley

T. D. WILLIAMS; G. A. SALT Annals of Applied Biology 1970. doi:10.1111/j.1744-7348.1970.tb06440.x

Other claims from this paper (12)

Intervention effect All soil sterilants except mercury decreased cereal cyst nematode numbers in the year they were applied.
Intervention effect All soil sterilants except mercury decreased take-all incidence in the year they were applied.
Intervention effect All soil sterilants except mercury increased crop yields in the year they were applied.
Intervention effect Dazomet gave the best control of Heterodera avenae in the first year.
Intervention effect Dazomet controlled Ophiobolus graminis best in both years of application.
Intervention effect In the third year, Heterodera avenae increased only in plots treated with formalin.
Intervention effect Two formalin applications more than trebled the Heterodera avenae egg count by the end of the third year.
Intervention effect Two formalin applications depressed barley yield.
Intervention effect Two successive applications of chloropicrin gave the best nematode control.
Intervention effect Two applications of dazomet gave the largest aggregate straw yield over three years.
Intervention effect The best yields after treatment in the first year only were given by D-D and methyl bromide.
Intervention effect Soil sterilants had no detectable effect on other fungus diseases, including Fusarium foot rot and Pythium root rot.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Prior P. radicicola infection retarded O. graminis spread in wheat roots.

Taxon: wheatTriticum aestivume0
Treatment: Pre‐existing infection of wheat roots by P. radicicolae0
Interactor: O. graminisGaeumannomyces graminise0pathogen
Second interactor: P. radicicolaGaeumannomyces radicicolae0biocontrol_agent
Outcome: spread of infection by O. graminise0
Direction: retardede0

Not reportedComparator

Verbatim

e0
“Pre‐existing infection of wheat roots by P. radicicola retarded spread of infection by O. graminis”
✓ located verbatim in the source · abstract, characters 1315–1413

Title

A comparative study of Phialophora radicicola, an avirulent fungal root parasite of grasses and cereals

C. BALIS Annals of Applied Biology 1970. doi:10.1111/j.1744-7348.1970.tb04603.x

Other claims from this paper (5)

Observation P. radicicola spread over roots of wheat, oats and barley.
Observation P. radicicola cortical infection caused no necrosis in cereals.
Observation P. radicicola infection caused no discernible growth check.
Intervention effect P. radicicola inoculation did not significantly reduce wheat grain yield.
Intervention effect Inoculating grasses with P. radicicola reduced subsequent O. graminis infection in wheat.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculating grasses with P. radicicola reduced subsequent O. graminis infection in wheat.

Taxon: wheatTriticum aestivume0
Treatment: inoculation of several grass species with P. radicicolae0
Interactor: O. graminisGaeumannomyces graminise0pathogen
Second interactor: P. radicicolaGaeumannomyces radicicolae0biocontrol_agent
Outcome: extent of infection by O. graminise0
Direction: reducede0

Not reportedComparator

Verbatim

e0
“inoculation of several grass species with P. radicicola reduced the extent of infection by O. graminis of wheat following the grasses.”
✓ located verbatim in the source · abstract, characters 1416–1550

Title

A comparative study of Phialophora radicicola, an avirulent fungal root parasite of grasses and cereals

C. BALIS Annals of Applied Biology 1970. doi:10.1111/j.1744-7348.1970.tb04603.x

Other claims from this paper (5)

Observation P. radicicola spread over roots of wheat, oats and barley.
Observation P. radicicola cortical infection caused no necrosis in cereals.
Observation P. radicicola infection caused no discernible growth check.
Intervention effect P. radicicola inoculation did not significantly reduce wheat grain yield.
Intervention effect Prior P. radicicola infection retarded O. graminis spread in wheat roots.

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Only O. graminis significantly reduced wheat height, fresh weight, functional roots and yield among pathogens compared.

Taxon: wheatTriticum aestivume0
Interactor: O. graminisGaeumannomyces graminise1pathogen
Outcome: plant height, fresh weight, numbers of functional rootse1
Direction: reducede1

Verbatim

e0
“wheat were compared with those by Fusarium graminearum”
✓ located verbatim in the source · abstract, characters 1173–1227

e1
“only O. graminis significantly reduced plant height, fresh weight, numbers of functional roots and yield”
✓ located verbatim in the source · abstract, characters 1403–1507

Title

Studies on Ophiobolus graminis and 'deadheads' of wheat

SC Chambers Minerva Access (University of Melbourne) 1970

Other claims from this paper (12)

Observation All field isolates were initially strongly pathogenic on wheat, though some weakened in culture.
Observation Infection affected wheat roots, height, fresh weight, head development and yield.
Observation Head symptoms ranged from suppressed heads to empty and poorly filled heads.
Association Lower light intensity, day length and soil moisture increased symptom severity.
Association Restricted root development and earlier inoculation increased symptom severity.
Association Symptoms were more severe at lower temperatures when inoculation occurred within eight weeks of seeding.
Mechanism Lower temperatures and shorter day lengths retarded wheat maturity and indirectly increased final symptoms.
Intervention effect Fertilizers did not alter symptoms, while nitrogenous dressings increased yield.
Intervention effect Nitrogenous dressings increased wheat yield.
Intervention effect Nitrogenous soil amendments prolonged survival of O. graminis on infected wheat straw.
Intervention effect Growing plants above infected straw reduced pathogen survival.
Observation Pathogen survival was greater on barley than wheat after inoculation at seeding and inversion at four weeks.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogenous soil amendments prolonged survival of O. graminis on infected wheat straw.

Taxon: wheatTriticum aestivume1
Treatment: nitrogenous soil amendmentse1
Interactor: O. graminisGaeumannomyces graminise0pathogen
Outcome: Survivale1
Direction: prolongede1

Not reportedComparator

Verbatim

e0
“O. graminis was isolated from all species”
✓ located verbatim in the source · abstract, characters 2519–2560

e1
“artificially-infected wheat straw buried in unsterilized soil. Survival was prolonged by nitrogenous soil amendments”
✓ located verbatim in the source · abstract, characters 2295–2411

Title

Studies on Ophiobolus graminis and 'deadheads' of wheat

SC Chambers Minerva Access (University of Melbourne) 1970

Other claims from this paper (12)

O. graminis 29 claims

29 claims