Claim · model-written summary
Lower temperatures and shorter day lengths retarded wheat maturity and indirectly increased final symptoms.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Lower temperatures and shorter day lengthse1
- Interactor
- one of the isolatese0pathogen
- Outcome
- severity of final symptomse1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat infected with one of the isolates”
e1“Lower temperatures and shorter day lengths also retarded plant maturity, thus indirectly increasing severity of final symptoms”
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.
- 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.