Abstract
Abstract Field studies in 2019–2020 evaluated the influence of fungicide application on seed quality from delayed harvest (approx. 20, 30, and 44 days after optimum harvest timing, i.e., 13% seed moisture). Treatments included nofungicide, pydiflumetofen plus difenoconazole (13.7 fl oz/acre Miravis Top, Syngenta), or mefentrifluconazole plus pyraclostrobin plus fluxapyroxad (8 fl oz/acre Revytek, BASF). Effect of environment was investigated in both field (natural rainfall events) and environmentally controlled growth chambers (79°F or 90°F with 30% or 100% relative humidity and exposed for 48 or 96 h) for potential impacts on soybean [ Glycine max (L.) Merr.] seed quality. Seed quality was based on a rating scale of 1 to 10 with 1 being seeds in good condition and 10 being seeds in poor condition, based on USDA reference images. Fungicide application had no effect on seed quality from delayed harvest or a saturated environment (100% relative humidity). Delaying harvest beyond approximately 20 days past optimum timing can result in reduced seed quality regardless of fungicide application (1.0 to 2.0 vs 4.0 to 8.1 rating). In addition, seedpod exposure averaged across temperature and relative humidity environments for as little as 96 h after optimum harvest timing can result in deteriorating seed quality issues (3.2 vs 1.4 rating) regardless of fungicide application. Results indicate that soybean harvest delayed 20 days after optimum timing and subjected to seasonal rainfall events or seedpods exposed to completely saturated conditions for 96 h associated with a tropical weather event will result in soybean seed quality deterioration regardless of fungicide application.
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Claims 4
Claim · model-written summary
Fungicide application had no effect on soybean seed quality from delayed harvest.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Fungicide applicatione0
- Outcome
- seed qualitye0
- Direction
- no_changeinferrede0
- Qualifier
- delayed harveste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Fungicide application had no effect on seed quality from delayed harvest”
Claim · model-written summary
Fungicide application had no effect on soybean seed quality in a saturated environment of 100% relative humidity.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Fungicide applicatione0
- Outcome
- seed qualitye0
- Direction
- no_changeinferrede0
- Qualifier
- saturated environment (100% relative humidity)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Fungicide application had no effect on seed quality from delayed harvest or a saturated environment (100% relative humidity)”
Claim · model-written summary
Delaying harvest beyond about 20 days past optimum timing reduced soybean seed quality regardless of fungicide application (rating 1.0 to 2.0 versus 4.0 to 8.1).
- Taxon
- soybeanGlycine maxt0
- Treatment
- Delaying harvest beyond approximately 20 days past optimum timinge0
- Outcome
- seed qualitye0
- Direction
- reducede0
- Value
- 1.0 to 2.0 vs 4.0 to 8.1 ratinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“Delaying harvest beyond approximately 20 days past optimum timing can result in reduced seed quality regardless of fungicide application (1.0 to 2.0 vs 4.0 to 8.1 rating)”
Claim · model-written summary
Seedpod exposure for as little as 96 h after optimum harvest timing, averaged across temperature and humidity environments, deteriorated soybean seed quality (rating 3.2 versus 1.4).
- Taxon
- soybeanGlycine maxt0
- Treatment
- seedpod exposure averaged across temperature and relative humidity environments for as little as 96 h after optimum harvest timinge0
- Outcome
- seed qualitye0
- Direction
- deterioratinge0
- Value
- 3.2 vs 1.4 ratinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean”
e0“seedpod exposure averaged across temperature and relative humidity environments for as little as 96 h after optimum harvest timing can result in deteriorating seed quality issues (3.2 vs 1.4 rating)”
The same questions in other papers
fungicide · quality: grain · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →humidity · quality: grain · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- negative
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.