Abstract
Halosulfuron is an alternative to methyl bromide for managing nutsedges ( Cyperus spp.) in several vegetable crops. Field studies were conducted to evaluate eggplant growth and yield when halosulfuron was applied through drip-irrigation before transplant at four rates (0, 26, 39, or 52 g·ha –1 a.i.) or following transplant (26 g·ha –1 applied 1, 2, or 3 weeks after transplant) in spring and fall crops in 2002 and 2003. Inverse linear relationships were observed between rate of halosulfuron and eggplant growth and rate of halosulfuron and eggplant yield. Halosulfuron at 52 g·ha –1 reduced eggplant growth (crop height and canopy width) 19% to 22%. Eggplant fruit biomass at the first harvest was reduced 37% to 63% by halosulfuron applied before transplant. Eggplant was capable of recovering from the initial injury and there was no effect of halosulfuron rate on fruit biomass at the final harvest. Total season fruit biomass was reduced ≤4% from halosulfuron at 39 g·ha –1 , while halosulfuron at 52 g·ha –1 reduced fruit biomass 33%. Delay in application of halosulfuron to 3 weeks after transplant (WAT) resulted in ≤7% reduction in fruit biomass and number for the entire season. When halosulfuron was applied 1 WAT, fruit biomass at the first two harvests was reduced >33%, however total season harvest from this treatment was >99% of the yield from the nontreated control. This preliminary study indicates that halosulfuron injected through drip tape may have the potential to assist in the replacement of methyl bromide for nutsedge management in eggplant. However, there are many issues that must be addressed and studied before adopting this practice in eggplant.
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Claims 11
Claim · model-written summary
Inverse linear relationships were observed between halosulfuron rate and eggplant growth, and between halosulfuron rate and eggplant yield.
- Taxon
- eggplant
Solanum melongenae0 - Treatment
- rate of halosulfurone0
- Outcome
- eggplant growth and rate of halosulfuron and eggplant yielde0
- Direction
- Inversee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inverse linear relationships were observed between rate of halosulfuron and eggplant growth and rate of halosulfuron and eggplant yield”
Claim · model-written summary
Halosulfuron at 52 g/ha reduced eggplant crop height and canopy width by 19% to 22%.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- Halosulfuron at 52 g·ha –1e0
- Outcome
- crop height and canopy widthe0
- Direction
- reducede0
- Value
- 19% to 22%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Halosulfuron at 52 g·ha –1 reduced eggplant growth (crop height and canopy width) 19% to 22%”
Claim · model-written summary
Eggplant fruit biomass at the first harvest was reduced 37% to 63% by halosulfuron applied before transplant.
- Taxon
- EggplantSolanum melongenae0
- Treatment
- halosulfuron applied before transplante0
- Outcome
- fruit biomass at the first harveste0
- Direction
- reducede0
- Value
- 37% to 63%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eggplant fruit biomass at the first harvest was reduced 37% to 63% by halosulfuron applied before transplant”
Claim · model-written summary
Eggplant was capable of recovering from the initial injury.
- Taxon
- EggplantSolanum melongenae0
- Outcome
- recovering from the initial injurye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eggplant was capable of recovering from the initial injury”
Claim · model-written summary
There was no effect of halosulfuron rate on eggplant fruit biomass at the final harvest.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- halosulfuron ratee0
- Outcome
- fruit biomass at the final harveste0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no effect of halosulfuron rate on fruit biomass at the final harvest”
t0“Eggplant”
Claim · model-written summary
Total season fruit biomass was reduced by 4% or less by halosulfuron at 39 g/ha.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- halosulfuron at 39 g·ha –1e0
- Outcome
- Total season fruit biomasse0
- Direction
- reducede0
- Value
- ≤4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total season fruit biomass was reduced ≤4% from halosulfuron at 39 g·ha –1”
t0“Eggplant”
Claim · model-written summary
Halosulfuron at 52 g/ha reduced total season fruit biomass by 33%.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- halosulfuron at 52 g·ha –1e0
- Outcome
- fruit biomasse0
- Direction
- reducede0
- Value
- 33%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“halosulfuron at 52 g·ha –1 reduced fruit biomass 33%”
t0“Eggplant”
Claim · model-written summary
Delaying halosulfuron application to 3 weeks after transplant reduced fruit biomass and number for the entire season by 7% or less.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- application of halosulfuron to 3 weeks after transplante0
- Outcome
- fruit biomass and numbere0
- Direction
- reductione0
- Value
- ≤7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delay in application of halosulfuron to 3 weeks after transplant (WAT) resulted in ≤7% reduction in fruit biomass and number for the entire season”
t0“Eggplant”
Claim · model-written summary
Halosulfuron applied 1 week after transplant reduced fruit biomass at the first two harvests by more than 33%.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- halosulfuron was applied 1 WATe0
- Outcome
- fruit biomass at the first two harvestse0
- Direction
- reducede0
- Value
- >33%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When halosulfuron was applied 1 WAT, fruit biomass at the first two harvests was reduced >33%”
t0“Eggplant”
Claim · model-written summary
Total season harvest from halosulfuron applied 1 week after transplant was more than 99% of the yield from the nontreated control.
- Taxon
- EggplantSolanum melongenat0
- Treatment
- halosulfuron was applied 1 WATe0
- Outcome
- total season harveste1
- Value
- >99%e1
- Comparator
- nontreated controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When halosulfuron was applied 1 WAT”
e1“total season harvest from this treatment was >99% of the yield from the nontreated control”
t0“Eggplant”
Claim · model-written summary
The authors suggest halosulfuron injected through drip tape may have potential to assist in replacing methyl bromide for nutsedge management in eggplant.
- Taxon
- eggplantSolanum melongenae0
- Interactor
- nutsedgee0weed
- Outcome
- replacement of methyl bromide for nutsedge managemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“halosulfuron injected through drip tape may have the potential to assist in the replacement of methyl bromide for nutsedge management in eggplant”
The same questions in other papers
Halosulfuron-methyl · yield · Solanum melongena (eggplant)Results agree
1 paper in the same direction as this paper
- negative
transplanting · growth · Solanum melongena (eggplant)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →transplanting · yield · Solanum melongena (eggplant)Positive and negative results
1 paper in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
12 papers more in this group
See all 16 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.