Claim · model-written summary
Head symptoms ranged from suppressed heads to empty and poorly filled heads.
- Taxon
- wheat
Triticum aestivume0 - Interactor
- one of the isolatese0pathogen
- Outcome
- head symptomse1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat infected with one of the isolates”
e1“head symptoms which ranged from complete suppression to empty and poorly-filled heads”
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.
- 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.
- Observation Only O. graminis significantly reduced wheat height, fresh weight, functional roots and yield among pathogens compared.
- 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.