Abstract
SUMMARY Glasshouse experiments are reported, in which the development of young wheat and barley plants was examined following inoculation with Ophiobolus graminis (Sacc.) Sacc. The dry weight, leaf area, tiller number and water content of the shoot were reduced by infection. Reductions were equally severe in wheat and barley. The seminal root system of both was severely attacked and its growth retarded. Inoculated plants, however, translocated a greater proportion of their total assimilates to the root system and produced more adventitious roots than healthy plants. As a result there was an increase in both the number and proportion of healthy roots on these plants following the initial infection of their root systems. This effect was more pronounced in barley than in wheat. It is suggested that this may in part account for the reported relative tolerance of barley to take‐all attack under field conditions.
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Claims 7
Claim · model-written summary
Infection reduced shoot dry weight, leaf area and tiller number in wheat and barley.
- Taxon
- wheat and barley
.jpg?width=60)
Hordeum vulgare
Triticum aestivume1 - Treatment
- inoculation with Ophiobolus graminise2
- Interactor
- Ophiobolus graminis
Gaeumannomyces graminise2pathogen - Outcome
- dry weight, leaf area, tiller numbere0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The dry weight, leaf area, tiller number and water content of the shoot were reduced by infection”
e1“young wheat and barley plants”
e2“inoculation with Ophiobolus graminis (Sacc.) Sacc.”
Claim · model-written summary
Infection reduced shoot water content in wheat and barley.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume1
- Treatment
- inoculation with Ophiobolus graminise2
- Interactor
- Ophiobolus graminisGaeumannomyces graminise2pathogen
- Outcome
- water content of the shoote0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water content of the shoot were reduced by infection”
e1“young wheat and barley plants”
e2“inoculation with Ophiobolus graminis (Sacc.) Sacc.”
Claim · model-written summary
Growth reductions were equally severe in wheat and barley.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume0
- Outcome
- Reductionse0
- Direction
- equally severee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reductions were equally severe in wheat and barley”
Claim · model-written summary
Infection severely attacked and retarded seminal root growth in both crops.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume1
- Treatment
- inoculation with Ophiobolus graminise2
- Interactor
- Ophiobolus graminisGaeumannomyces graminise2pathogen
- Outcome
- seminal root systeme0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The seminal root system of both was severely attacked and its growth retarded”
e1“young wheat and barley plants”
e2“inoculation with Ophiobolus graminis (Sacc.) Sacc.”
Claim · model-written summary
Infected plants sent a greater share of assimilates to roots and made more adventitious roots than healthy plants.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume1
- Treatment
- inoculation with Ophiobolus graminise2
- Interactor
- Ophiobolus graminisGaeumannomyces graminise2pathogen
- Outcome
- greater proportion of their total assimilates to the root system and produced more adventitious rootse0
- Direction
- greatere0
- Comparator
- healthy plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculated plants, however, translocated a greater proportion of their total assimilates to the root system and produced more adventitious roots than healthy plants”
e1“young wheat and barley plants”
e2“inoculation with Ophiobolus graminis (Sacc.) Sacc.”
Claim · model-written summary
Healthy roots increased in number and proportion after initial infection.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume1
- Outcome
- number and proportion of healthy rootse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was an increase in both the number and proportion of healthy roots on these plants following the initial infection of their root systems”
e1“young wheat and barley plants”
Claim · model-written summary
The healthy-root response was more pronounced in barley than wheat.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- effecte0
- Direction
- more pronouncede0
- Comparator
- wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This effect was more pronounced in barley than in wheat”
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