Abstract
Diclosulam and flumioxazin applied preemergent (PRE) results in direct peanut exposure to these herbicides prior to seedling emergence. Flumioxazin has been reported to induce injury in adverse weather (i.e. cool-wet soil conditions) at crop emergence. Research at Ty Ty and Plains, Georgia evaluated the physiological effects of PRE herbicides to emerging peanut in 2018 and 2019. Peanut seed with variable germination and different planting dates were evaluated as additional factors. Peanut plant physiological measurements included electron transport (ETR), net assimilation rate (Anet), quantum yield of PSII (ΦPSII), and stomatal conductance to water vapor (GSW). Data were obtained from V3 to R1 peanut growth stages using a LiCOR 6800, along with stand counts and plant width measures. In 2018, diclosulam reduced peanut ETR when measured across multiple growing degree days (GDD) after planting, compared to the nontreated control (NTC). Flumioxazin reduced peanut ETR compared to the NTC, at several sample timings for each planting date. In 2018 and 2019 at both locations, flumioxazin impacted Anet less than ETR, but was consistently similar to/or greater than the NTC. Peanut ΦPSII responded similarly as Anet at each location and yr. GSW was variable in both years; however flumioxazin treated plants had higher GSW rates than other treated plants. Peanut stand counts, plant widths, and pod yields noted few differences compared to the physiological measures. Though some peanut plant physiological differences were noted when measured at varying GDD’s after planting with the different PRE treatments, planting date, and seed vigor, no specific trends were observed. Growers will often observe peanut injury from flumioxazin early in the season. However, it is transient and does not affect yield.
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Claims 9
Claim · model-written summary
Diclosulam reduced peanut electron transport rate relative to untreated controls in 2018.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- diclosulame0
- Outcome
- ETRe0
- Direction
- reducede0
- Comparator
- nontreated controle0
- Setting
- 2018e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2018, diclosulam reduced peanut ETR when measured across multiple growing degree days (GDD) after planting, compared to the nontreated control (NTC).”
Claim · model-written summary
Flumioxazin reduced peanut electron transport rate relative to untreated controls at several sampling times.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- Flumioxazine0
- Outcome
- ETRe0
- Direction
- reducede0
- Qualifier
- at several sample timings for each planting datee0
- Comparator
- NTCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flumioxazin reduced peanut ETR compared to the NTC, at several sample timings for each planting date.”
Claim · model-written summary
Flumioxazin affected peanut net assimilation less than electron transport rate, with net assimilation similar to or greater than untreated plants.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- flumioxazine0
- Outcome
- Anete0
- Direction
- similar to/or greater thane0
- Comparator
- NTCe0
- Setting
- 2018 and 2019e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2018 and 2019 at both locations, flumioxazin impacted Anet less than ETR, but was consistently similar to/or greater than the NTC.”
t0“Peanut”
Claim · model-written summary
Peanut quantum yield of PSII responded similarly to net assimilation at each location and year.
- Taxon
- PeanutArachis hypogaeae0
- Outcome
- ΦPSIIe0
- Direction
- similarlye0
- Comparator
- Anete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut ΦPSII responded similarly as Anet at each location and yr.”
Claim · model-written summary
Flumioxazin treated peanut plants had higher stomatal conductance than other treated plants.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- flumioxazine0
- Outcome
- GSW ratese0
- Direction
- highere0
- Comparator
- other treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GSW was variable in both years; however flumioxazin treated plants had higher GSW rates than other treated plants.”
t0“Peanut”
Claim · model-written summary
Peanut stand counts, plant widths, and pod yields showed few differences compared with physiological measurements.
- Taxon
- PeanutArachis hypogaeae0
- Outcome
- stand counts, plant widths, and pod yieldse0
- Direction
- few differencese0
- Comparator
- physiological measurese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut stand counts, plant widths, and pod yields noted few differences compared to the physiological measures.”
Claim · model-written summary
No specific trends in peanut physiology emerged across growing degree days, preemergent treatments, planting date, and seed vigor.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- peanut plant physiological differencese0
- Qualifier
- no specific trends were observede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Though some peanut plant physiological differences were noted when measured at varying GDD’s after planting with the different PRE treatments, planting date, and seed vigor, no specific trends were observed.”
Claim · model-written summary
Early peanut injury from flumioxazin is transient.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- flumioxazine0
- Outcome
- peanut injurye0
- Qualifier
- transiente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growers will often observe peanut injury from flumioxazin early in the season. However, it is transient and does not affect yield.”
Claim · model-written summary
Early flumioxazin injury does not affect peanut yield.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- flumioxazine0
- Outcome
- yielde0
- Direction
- does not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growers will often observe peanut injury from flumioxazin early in the season. However, it is transient and does not affect yield.”
The same questions in other papers
flumioxazin · yield · Arachis hypogaea (peanut)Results differ
9 papers in the same direction as this paper · 10 in the opposite direction
- positive
- no effect
- no effect
16 papers more in this group
See all 20 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.