Abstract
Early seeding of lentil is necessary on the northern prairies to ensure that the crop has time to mature. However, planting into cold soils in spring results in slow germination, which may predispose seedlings to infection by soil-borne pathogens. In a controlled-environment study of the impact of temperature on infection of lentil seedlings (cv. Eston) byFusarium avenaceum, root rot symptoms were most severe at warm temperatures (20° to 27.5 °C) and declined in warmer or cooler soils. Field plots were seeded on three dates, which were spaced about 2 wk apart between early May and early June in four station years. Seedling emergence was most consistent and seed yield was highest in three of four sites at the second seeding date. Emergence and yield were substantially lower for the latest seeding date. Inoculation with F. avenaceum reduced establishment and seed yield. Seed treatment with Crown (thiabendazole and carbathiin) improved seedling survival, reduced root rot severity and increased seed yield relative to the inoculated control. Vitaflo-280 (thiram and carbathiin) also improved establishment and yield, but the effect was not as strong or consistent. Treatment with Raxil (tebuconazole) and Apron (metalaxyl) had no effect. The pathogenicity of aggressive isolates of F. avenaceum from lentil on a range of crop species was evaluated. All crops were susceptible to some degree, which indicates that the pathogen, once established, is likely to persist in a field for some time. This study demonstrated that early planting was required for maximum yield, that certain isolates of F. avenaceum were pathogenic on a wide range of hosts, and that seed treatment can be used to minimize losses from seedling blight and root rot in lentil. Key words: Lentil (Lens culinaris Medikus), Fusarium avenaceum, root rot, seeding date, thiabendazole, carbathiin, thiram, tebuconazole
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Claims 15
Claim · model-written summary
Root rot was most severe at 20° to 27.5 °C.
- Taxon
- lentil
Lens culinarist0 - Treatment
- warm temperatures (20° to 27.5 °C)e0
- Outcome
- root rot symptomse0
- Direction
- most severee0
- Comparator
- warmer or cooler soilse0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root rot symptoms were most severe at warm temperatures (20° to 27.5 °C) and declined in warmer or cooler soils”
t0“lentil”
Claim · model-written summary
Emergence was most consistent at the second sowing date.
- Taxon
- lentilLens culinarist0
- Treatment
- second seeding datee0
- Outcome
- Seedling emergencee0
- Direction
- most consistente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling emergence was most consistent and seed yield was highest in three of four sites at the second seeding date”
t0“lentil”
Claim · model-written summary
Yield was highest at the second sowing date in three of four sites.
- Taxon
- lentilLens culinarist0
- Treatment
- second seeding datee0
- Outcome
- seed yielde0
- Direction
- higheste0
- Qualifier
- three of four sitese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield was highest in three of four sites at the second seeding date”
t0“lentil”
Claim · model-written summary
Latest sowing substantially lowered emergence and yield.
- Taxon
- lentilLens culinarist0
- Treatment
- latest seeding datee0
- Outcome
- Emergence and yielde0
- Direction
- substantially lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Emergence and yield were substantially lower for the latest seeding date”
t0“lentil”
Claim · model-written summary
Fusarium inoculation reduced plant establishment.
- Taxon
- lentilLens culinarist0
- Treatment
- Inoculation with F. avenaceume0
- Interactor
- F. avenaceum
Fusarium avenaceume0pathogen - Outcome
- establishmente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with F. avenaceum reduced establishment and seed yield”
t0“lentil”
Claim · model-written summary
Fusarium inoculation reduced seed yield.
- Taxon
- lentilLens culinarist0
- Treatment
- Inoculation with F. avenaceume0
- Interactor
- F. avenaceumFusarium avenaceume0pathogen
- Outcome
- seed yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with F. avenaceum reduced establishment and seed yield”
t0“lentil”
Claim · model-written summary
Crown increased survival, reduced root rot and increased yield versus inoculated control.
- Taxon
- lentilLens culinarist0
- Treatment
- Crown (thiabendazole and carbathiin)e0
- Outcome
- seedling survivale0
- Direction
- improvede0
- Comparator
- inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed treatment with Crown (thiabendazole and carbathiin) improved seedling survival, reduced root rot severity and increased seed yield relative to the inoculated control”
t0“lentil”
Claim · model-written summary
Crown reduced root rot severity.
- Taxon
- lentilLens culinarist0
- Treatment
- Crown (thiabendazole and carbathiin)e0
- Outcome
- root rot severitye0
- Direction
- reducede0
- Comparator
- inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed treatment with Crown (thiabendazole and carbathiin) improved seedling survival, reduced root rot severity and increased seed yield relative to the inoculated control”
t0“lentil”
Claim · model-written summary
Crown increased seed yield.
- Taxon
- lentilLens culinarist0
- Treatment
- Crown (thiabendazole and carbathiin)e0
- Outcome
- seed yielde0
- Direction
- increasede0
- Comparator
- inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed treatment with Crown (thiabendazole and carbathiin) improved seedling survival, reduced root rot severity and increased seed yield relative to the inoculated control”
t0“lentil”
Claim · model-written summary
Vitaflo-280 improved establishment and yield, less consistently than Crown.
- Taxon
- lentilLens culinarist0
- Treatment
- Vitaflo-280 (thiram and carbathiin)e0
- Outcome
- establishment and yielde0
- Direction
- improvede0
- Qualifier
- not as strong or consistente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitaflo-280 (thiram and carbathiin) also improved establishment and yield, but the effect was not as strong or consistent”
t0“lentil”
Claim · model-written summary
Raxil and Apron had no effect.
- Taxon
- lentilLens culinarist0
- Treatment
- Raxil (tebuconazole)e0
- Outcome
- effecte0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with Raxil (tebuconazole) and Apron (metalaxyl) had no effect”
t0“lentil”
Claim · model-written summary
Apron had no effect.
- Taxon
- lentilLens culinarist0
- Treatment
- Apron (metalaxyl)e0
- Outcome
- effecte0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with Raxil (tebuconazole) and Apron (metalaxyl) had no effect”
t0“lentil”
Claim · model-written summary
All tested crops were susceptible to some degree.
Verbatim
e0“All crops were susceptible to some degree”
t0“lentil”
Claim · model-written summary
Early sowing was required for maximum yield.
- Taxon
- lentilLens culinarist0
- Outcome
- early plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early planting was required for maximum yield”
t0“lentil”
Claim · model-written summary
Seed treatment can minimize lentil seedling blight and root rot losses.
- Taxon
- lentilLens culinarise0
- Outcome
- seed treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment can be used to minimize losses from seedling blight and root rot in lentil”
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