Abstract
The field resistance to common root rot (Cochliobolus sativus) of wheat lines, graded for their reaction to this disease in Canada, was determined under Queensland conditions. Several Australian varieties were also examined. Lines considered resistant and susceptible in Canada behaved in a similar fashion under Queensland conditions, while Australian varieties were generally intermediate. Discolouration of the sub-crown internode was the commonest symptom of the disease and was associated generally with a decrease in individual plant yield and in the number of heads on each plant. Discolouration of the sub-crown internode associated with Pyrenochaeta sp. in one experiment gave a varietal reaction pattern similar to that obtained with C. sativus at other sites. There appears little relationship between varietal reaction to common root rot and that previous1 reported to crown rot (Gibberella zeae).
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Claims 7
Claim · model-written summary
Wheat lines rated resistant or susceptible in Canada behaved similarly in Queensland.
- Taxon
- wheat
Triticum aestivumt0 - Interactor
- Cochliobolus sativus
Bipolaris sorokinianae1pathogen - Outcome
- behaved in a similar fashione0
- Comparator
- Canadae0
- Setting
- Queenslande0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lines considered resistant and susceptible in Canada behaved in a similar fashion under Queensland conditions”
t0“wheat in Queensland”
e1“common root rot (Cochliobolus sativus)”
Claim · model-written summary
Australian wheat varieties generally had intermediate root-rot reactions.
- Taxon
- wheatTriticum aestivumt0
- Material
- Australian varietiese0
- Interactor
- Cochliobolus sativusBipolaris sorokinianae1pathogen
- Outcome
- intermediatee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Australian varieties were generally intermediate”
t0“wheat in Queensland”
e1“common root rot (Cochliobolus sativus)”
Claim · model-written summary
Sub-crown internode discolouration was the commonest common-root-rot symptom in wheat.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- sub-crown internodee0
- Interactor
- Cochliobolus sativusBipolaris sorokinianae1pathogen
- Outcome
- Discolouration of the sub-crown internodee0
- Direction
- commoneste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Discolouration of the sub-crown internode was the commonest symptom of the disease”
t0“wheat in Queensland”
e1“common root rot (Cochliobolus sativus)”
Claim · model-written summary
Sub-crown internode discolouration was generally associated with lower individual wheat yield.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- sub-crown internodee0
- Interactor
- Cochliobolus sativusBipolaris sorokinianae1pathogen
- Outcome
- individual plant yielde0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Discolouration of the sub-crown internode was the commonest symptom of the disease and was associated generally with a decrease in individual plant yield and in the number of heads on each plant”
t0“wheat in Queensland”
e1“common root rot (Cochliobolus sativus)”
Claim · model-written summary
Sub-crown internode discolouration was generally associated with fewer heads per wheat plant.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- sub-crown internodee0
- Interactor
- Cochliobolus sativusBipolaris sorokinianae1pathogen
- Outcome
- number of heads on each plante0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Discolouration of the sub-crown internode was the commonest symptom of the disease and was associated generally with a decrease in individual plant yield and in the number of heads on each plant”
t0“wheat in Queensland”
e1“common root rot (Cochliobolus sativus)”
Claim · model-written summary
Wheat varietal reactions to Pyrenochaeta-associated internode discolouration resembled reactions to C. sativus at other sites.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- Pyrenochaeta sp.Pyrenochaetae0pathogen
- Second interactor
- C. sativusBipolaris sorokinianae0pathogen
- Outcome
- varietal reaction patterne0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Discolouration of the sub-crown internode associated with Pyrenochaeta sp. in one experiment gave a varietal reaction pattern similar to that obtained with C. sativus at other sites”
t0“wheat in Queensland”
Claim · model-written summary
Varietal reaction to common root rot had little relationship with previously reported crown-rot reaction.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- Cochliobolus sativusBipolaris sorokinianae1pathogen
- Second interactor
- Gibberella zeae
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=60)
Fusarium graminearume0pathogen - Outcome
- varietal reaction to common root rote0
- Comparator
- crown rote0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=500)
Verbatim
e0“There appears little relationship between varietal reaction to common root rot and that previous1 reported to crown rot (Gibberella zeae)”
t0“wheat in Queensland”
e1“common root rot (Cochliobolus sativus)”