Abstract
Leaf and awn spot of barley caused by the fungus Ramularia collocygni (Ovularia hordei) has been prevalent in crops in Canterbury New Zealand over the last few seasons causing rapid leaf senescence late in the season Control can readily be achieved with a single triazole and strobilurin fungicide application but timing of application at late booting is important A rate response to a triazole fungicide was noted but there was no response to the rates of the strobilurin fungicides tested Good control is achieved at both high and low application rates with strobilurins The correlation between disease severity and grain yield shows a nonlinear relationship with low levels of disease having a major influence on grain yield Seed infection has also been noted but the significance has not been evaluated
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Claims 8
Claim · model-written summary
Leaf and awn spot has been prevalent in Canterbury barley crops and causes rapid late-season leaf senescence.
- Taxon
- barley
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Hordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Leaf and awn spot of barley caused by the fungus Ramularia collocygni (Ovularia hordei) has been prevalent in crops in Canterbury New Zealand over the last few seasons causing rapid leaf senescence late in the season”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
Claim · model-written summary
A single triazole and strobilurin application controlled barley leaf and awn spot.
- Taxon
- barleyHordeum vulgaree0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Control can readily be achieved with a single triazole and strobilurin fungicide application”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
Claim · model-written summary
Late booting was important for the timing of fungicide application.
- Taxon
- barleyHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“timing of application at late booting is important”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
Claim · model-written summary
Triazole fungicide showed a rate response.
- Taxon
- barleyHordeum vulgaree0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A rate response to a triazole fungicide was noted”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
Claim · model-written summary
Strobilurin fungicides showed no response to tested rates.
- Taxon
- barleyHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no response to the rates of the strobilurin fungicides tested”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
Claim · model-written summary
Strobilurins achieved good control at both high and low rates.
- Taxon
- barleyHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Good control is achieved at both high and low application rates with strobilurins”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
Claim · model-written summary
Disease severity and grain yield were nonlinearly related, with low disease levels strongly influencing yield.
- Taxon
- barleyHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlation between disease severity and grain yield shows a nonlinear relationship with low levels of disease having a major influence on grain yield”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
Claim · model-written summary
Seed infection was observed, but its significance was not evaluated.
- Taxon
- barleyHordeum vulgaree0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed infection has also been noted but the significance has not been evaluated”
t0“leaf and awn spot of barley caused by Ramularia collocygni”
The same questions in other papers
fungicide · control · Hordeum vulgare (barley)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
4 papers more in this group
See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.