Abstract
The pasmo pathogen sporulated freely on potato dextrose agar containing yeast extract. Spores suspended in water with gelatin as a spreader–sticker were sprayed onto flax plants at different stages of growth in field plots. Heaviest infections of pasmo resulted from inoculations at the flowering stage, lighter infections from inoculations on seedlings, and lightest infections from inoculations on ripening plants. Diluting the concentration of spores in the inoculum reduced disease intensity. The four flax varieties in the tests differed in reaction to pasmo. In decreasing order of susceptibility they were: Viking, Redwing, Royal, and Crystal. Heavy infections of pasmo caused premature ripening and reduced the seed yield and weight per thousand kernels of all four varieties. The effects of pasmo infection on seed yield and kernel weight were similar to those caused by a hot, dry climate, and by flax rust. Seed yield and kernel weight were reduced most markedly by inoculation at the flowering stage, less severely by inoculation at the seedling stage, and least of all by inoculation at the time of ripening. Seed yield and kernel weight from plots inoculated when the plants were ripening did not differ significantly from the uninoculated checks. Highly significant positive correlations between the data for seed yield and kernel weight indicated that much of the loss in yield resulted from a reduction in the size of individual seeds.
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Claims 8
Claim · model-written summary
Pasmo infection was heaviest after flowering-stage inoculation, lighter after seedling inoculation, and lightest after ripening-stage inoculation.
- Taxon
- FLAX
Linum usitatissimumt0 - Treatment
- inoculations at the flowering stagee0
- Interactor
- pasmoe0pathogen
- Outcome
- infections of pasmoe0
- Direction
- Heavieste0
- Comparator
- inoculations on seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heaviest infections of pasmo resulted from inoculations at the flowering stage, lighter infections from inoculations on seedlings, and lightest infections from inoculations on ripening plants.”
t0“FLAX”
Claim · model-written summary
Diluting spore inoculum reduced pasmo disease intensity in flax.
- Taxon
- FLAXLinum usitatissimumt0
- Treatment
- Diluting the concentration of sporese0
- Interactor
- PASMOt1pathogen
- Outcome
- disease intensitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diluting the concentration of spores in the inoculum reduced disease intensity.”
t0“FLAX”
t1“PASMO”
Claim · model-written summary
The four flax varieties ranked Viking, Redwing, Royal, Crystal in decreasing pasmo susceptibility.
- Taxon
- FLAXLinum usitatissimumt0
- Material
- Viking, Redwing, Royal, and Crystale0
- Interactor
- PASMOt1pathogen
- Outcome
- susceptibilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In decreasing order of susceptibility they were: Viking, Redwing, Royal, and Crystal.”
t0“FLAX”
t1“PASMO”
Claim · model-written summary
Heavy pasmo infection caused premature ripening in all four flax varieties.
- Taxon
- FLAXLinum usitatissimumt0
- Treatment
- Heavy infections of pasmoe0
- Interactor
- pasmoe0pathogen
- Outcome
- premature ripeninge0
- Direction
- prematuree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy infections of pasmo caused premature ripening and reduced the seed yield and weight per thousand kernels of all four varieties.”
t0“FLAX”
Claim · model-written summary
Heavy pasmo infection reduced flax seed yield.
- Taxon
- FLAXLinum usitatissimumt0
- Treatment
- Heavy infections of pasmoe0
- Interactor
- pasmoe0pathogen
- Outcome
- seed yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy infections of pasmo caused premature ripening and reduced the seed yield and weight per thousand kernels of all four varieties.”
t0“FLAX”
Claim · model-written summary
Heavy pasmo infection reduced flax weight per thousand kernels.
- Taxon
- FLAXLinum usitatissimumt0
- Treatment
- Heavy infections of pasmoe0
- Interactor
- pasmoe0pathogen
- Outcome
- weight per thousand kernelse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy infections of pasmo caused premature ripening and reduced the seed yield and weight per thousand kernels of all four varieties.”
t0“FLAX”
Claim · model-written summary
Seed yield and kernel weight after ripening-stage inoculation did not differ significantly from uninoculated controls.
- Taxon
- FLAXLinum usitatissimumt0
- Treatment
- inoculated when the plants were ripeninge0
- Outcome
- Seed yield and kernel weighte0
- Direction
- did not differe0
- Comparator
- uninoculated checkse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield and kernel weight from plots inoculated when the plants were ripening did not differ significantly from the uninoculated checks.”
t0“FLAX”
Claim · model-written summary
Flax seed yield and kernel weight were significantly positively correlated.
- Taxon
- FLAXLinum usitatissimumt0
- Outcome
- seed yielde0
- Direction
- positivee0
- Comparator
- kernel weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highly significant positive correlations between the data for seed yield and kernel weight”
t0“FLAX”
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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.