Abstract
Abstract Field trials were conducted near Pontotoc, Mississippi; Chase, Louisiana; and Clinton, North Carolina, in 2017 and 2018 to determine the effect of pendimethalin rate and timing application on sweetpotato crop tolerance, yield, and storage root quality. Treatments consisted of five pendimethalin rates (266, 532, 1,065, 1,597, and 2,130 g ai ha −1 ) by two application timings (0 to 1 or 10 to 14 d after transplanting). Additionally, a nontreated check was included for comparison. Crop injury (stunting) was minimal (≤4%) through 6 wk after transplanting (WAP) and no injury was observed from 8 to 14 WAP, regardless of application timing or rate. The nontreated check yielded 6.6, 17.6, 5.5, and 32.1 × 10 3 kg ha −1 of canner, no. 1, jumbo, and total grades, respectively. Neither pendimethalin application timing nor rate influenced jumbo, no. 1, marketable, or total sweetpotato yield. Overall, these results indicate that pendimethalin will be a valuable addition to the toolkit of sweetpotato growers.
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Claims 9
Claim · model-written summary
Pendimethalin caused at most 4% stunting through six weeks.
- Taxon
- sweetpotato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- pendimethalint1
- Outcome
- Crop injury (stunting)e0
- Direction
- minimale0
- Value
- ≤4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Crop injury (stunting) was minimal (≤4%) through 6 wk after transplanting (WAP) and no injury was observed from 8 to 14 WAP, regardless of application timing or rate”
t0“sweetpotato”
t1“Response of sweetpotato to pendimethalin application rate and timing”
Claim · model-written summary
No injury was observed from eight to fourteen weeks.
- Taxon
- sweetpotatoIpomoea batatast0
- Treatment
- pendimethalint1
- Outcome
- injurye0
- Direction
- no injurye0
- Qualifier
- 8 to 14 WAPe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no injury was observed from 8 to 14 WAP, regardless of application timing or rate”
t0“sweetpotato”
t1“Response of sweetpotato to pendimethalin application rate and timing”
Claim · model-written summary
Untreated canner yield was 6.6 × 10 3 kg ha −1.
- Taxon
- sweetpotatoIpomoea batatast0
- Outcome
- cannere0
- Value
- 6.6e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nontreated check yielded 6.6, 17.6, 5.5, and 32.1 × 10 3 kg ha −1 of canner, no. 1, jumbo, and total grades, respectively”
t0“sweetpotato”
Claim · model-written summary
Untreated number one yield was 17.6 × 10 3 kg ha −1.
- Taxon
- sweetpotatoIpomoea batatast0
- Outcome
- no. 1e0
- Value
- 17.6e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nontreated check yielded 6.6, 17.6, 5.5, and 32.1 × 10 3 kg ha −1 of canner, no. 1, jumbo, and total grades, respectively”
t0“sweetpotato”
Claim · model-written summary
Untreated jumbo yield was 5.5 × 10 3 kg ha −1.
- Taxon
- sweetpotatoIpomoea batatast0
- Outcome
- jumboe0
- Value
- 5.5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nontreated check yielded 6.6, 17.6, 5.5, and 32.1 × 10 3 kg ha −1 of canner, no. 1, jumbo, and total grades, respectively”
t0“sweetpotato”
Claim · model-written summary
Untreated total yield was 32.1 × 10 3 kg ha −1.
- Taxon
- sweetpotatoIpomoea batatast0
- Outcome
- total gradese0
- Value
- 32.1 × 10 3 kg ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nontreated check yielded 6.6, 17.6, 5.5, and 32.1 × 10 3 kg ha −1 of canner, no. 1, jumbo, and total grades, respectively”
t0“sweetpotato”
Claim · model-written summary
Pendimethalin timing did not influence jumbo, number one, marketable or total yield.
- Taxon
- sweetpotatoIpomoea batatase0
- Treatment
- pendimethalin application timinge0
- Outcome
- jumbo, no. 1, marketable, or total sweetpotato yielde0
- Direction
- Neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither pendimethalin application timing nor rate influenced jumbo, no. 1, marketable, or total sweetpotato yield”
Claim · model-written summary
Pendimethalin rate did not influence jumbo, number one, marketable or total yield.
- Taxon
- sweetpotatoIpomoea batatase0
- Treatment
- ratee0
- Outcome
- jumbo, no. 1, marketable, or total sweetpotato yielde0
- Direction
- Neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither pendimethalin application timing nor rate influenced jumbo, no. 1, marketable, or total sweetpotato yield”
Claim · model-written summary
The authors recommend pendimethalin as useful for sweetpotato growers.
- Taxon
- sweetpotatoIpomoea batatase0
- Outcome
- valuable addition to the toolkit of sweetpotato growerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin will be a valuable addition to the toolkit of sweetpotato growers”
The same questions in other papers
pendimethalin · crop injury · Ipomoea batatas (sweet potato)Results agree
1 paper in the same direction as this paper
- 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.