Abstract
Two experiments were conducted in 2015 at multiple locations in Florida to evaluate the effects of planting depth and application timing on S -metolachlor injury in sesame. In both studies, sesame responded negatively to increases in S -metolachlor rate. Altering sesame planting depth did not provide increased safety to PRE S -metolachlor applications. Sesame establishment declined with increased planting depth, likely because of the physical inability of the small seed to emerge from the 3.8-cm depth. Delaying applications of S -metolachlor by 3 or 6 d after planting (DAP) consistently improved sesame establishment. Applications 3 and 6 DAP resulted in 89 to 92% seedling emergence at 2 wk after planting (WAP), relative to 55 to 63% emergence when S -metolachlor was applied the day of planting (0 DAP) or 3 days before (−3 DAP), respectively. Applications 3 DAP resulted in 21 and 2% plant stunting when evaluated 3 and 6 WAP, respectively, whereas all other timings caused 25 to 51% stunting. Yield was reduced 22 and 33% by the −3 DAP and 0 DAP application timings, respectively, whereas no reduction in yield was observed by the delayed application timings. Therefore, delaying applications of S -metolachlor by 3 to 6 days will likely result in improved sesame seedling establishment and total seed yield.
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Claims 8
Claim · model-written summary
Sesame responded negatively as S-metolachlor rate increased.
- Taxon
- sesame
Sesamum indicume0 - Treatment
- increases in S -metolachlor ratee0
- Outcome
- responded negativelye0
- Direction
- negativelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both studies, sesame responded negatively to increases in S -metolachlor rate.”
Claim · model-written summary
Changing planting depth did not improve sesame safety under PRE S-metolachlor.
- Taxon
- sesameSesamum indicume0
- Treatment
- Altering sesame planting depthe0
- Outcome
- safetye0
- Direction
- did not provide increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Altering sesame planting depth did not provide increased safety to PRE S -metolachlor applications.”
Claim · model-written summary
Deeper planting reduced sesame establishment.
- Taxon
- SesameSesamum indicume0
- Treatment
- increased planting depthe0
- Outcome
- establishmente0
- Direction
- declinede0
- Qualifier
- 3.8-cm depthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesame establishment declined with increased planting depth, likely because of the physical inability of the small seed to emerge from the 3.8-cm depth.”
Claim · model-written summary
Delaying S-metolachlor application improved sesame establishment.
- Taxon
- sesameSesamum indicume0
- Treatment
- Delaying applications of S -metolachlor by 3 or 6 d after planting (DAP)e0
- Outcome
- establishmente0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delaying applications of S -metolachlor by 3 or 6 d after planting (DAP) consistently improved sesame establishment.”
Claim · model-written summary
Applications at 3 and 6 DAP yielded 89 to 92% emergence versus 55 to 63% for earlier timings.
- Treatment
- Applications 3 and 6 DAPe0
- Outcome
- seedling emergencee0
- Value
- 89 to 92%e0
- Qualifier
- 55 to 63% emergencee0
- Comparator
- the day of planting (0 DAP) or 3 days before (−3 DAP)e0
Not reportedTaxonDirection
Verbatim
e0“Applications 3 and 6 DAP resulted in 89 to 92% seedling emergence at 2 wk after planting (WAP), relative to 55 to 63% emergence when S -metolachlor was applied the day of planting (0 DAP) or 3 days before (−3 DAP), respectively.”
Claim · model-written summary
Application at 3 DAP caused 21% stunting at 3 WAP and 2% at 6 WAP, below other timings.
- Treatment
- Applications 3 DAPe0
- Outcome
- plant stuntinge0
- Value
- 21 and 2%e0
- Qualifier
- 25 to 51% stuntinge0
- Comparator
- all other timingse0
Not reportedTaxonDirection
Verbatim
e0“Applications 3 DAP resulted in 21 and 2% plant stunting when evaluated 3 and 6 WAP, respectively, whereas all other timings caused 25 to 51% stunting.”
Claim · model-written summary
Application at −3 DAP reduced yield by 22%.
Not reportedTaxonComparator
Verbatim
e0“Yield was reduced 22 and 33% by the −3 DAP and 0 DAP application timings, respectively, whereas no reduction in yield was observed by the delayed application timings.”
Claim · model-written summary
Delayed application timings did not reduce yield.
Not reportedTaxonComparator
Verbatim
e0“Yield was reduced 22 and 33% by the −3 DAP and 0 DAP application timings, respectively, whereas no reduction in yield was observed by the delayed application timings.”
The same questions in other papers
metolachlor · growth · Sesamum indicum (sesame)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.