Abstract
The use of clear polyethylene mulch greatly increased the total yield of transplanted New Yorker tomatoes. The growth retardant succinic acid 2,2-dimethylhydrazide (SADH) applied pretransplant at the three- to four-true leaf stage retarded earliness, concentrated ripening, and increased yields slightly. Another growth retardant, (2-chloroethyl) trimethylammonium chloride (chlormequat), reduced the size of the plants appreciably, increased earliness slightly, but significantly reduced total yields. Concentrated ripening of fruit was obtained 6–9 days after (2-chloroethyl) phosphonic acid (ethephon) was sprayed on tomato plants. The high concentration of 4000 ppm of this chemical reduced total yields and size of fruit appreciably. At 1000 ppm, ethephon produced an initial peak of fruit ripening but since plants were not destroyed, they produced another peak of ripe fruit later in the season.
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Claims 11
Claim · model-written summary
Clear polyethylene mulch greatly increased total tomato yield.
- Taxon
- tomatoes
Solanum lycopersicume0 - Material
- New Yorkere0
- Treatment
- clear polyethylene mulche0
- Outcome
- total yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of clear polyethylene mulch greatly increased the total yield of transplanted New Yorker tomatoes.”
Claim · model-written summary
SADH delayed earliness.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- succinic acid 2,2-dimethylhydrazide (SADH)e0
- Outcome
- earlinesse0
- Direction
- retardede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth retardant succinic acid 2,2-dimethylhydrazide (SADH) applied pretransplant at the three- to four-true leaf stage retarded earliness, concentrated ripening, and increased yields slightly.”
t0“TOMATO”
Claim · model-written summary
SADH concentrated tomato ripening.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- succinic acid 2,2-dimethylhydrazide (SADH)e0
- Outcome
- ripeninge0
- Direction
- concentratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth retardant succinic acid 2,2-dimethylhydrazide (SADH) applied pretransplant at the three- to four-true leaf stage retarded earliness, concentrated ripening, and increased yields slightly.”
t0“TOMATO”
Claim · model-written summary
SADH slightly increased yields.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- succinic acid 2,2-dimethylhydrazide (SADH)e0
- Outcome
- yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth retardant succinic acid 2,2-dimethylhydrazide (SADH) applied pretransplant at the three- to four-true leaf stage retarded earliness, concentrated ripening, and increased yields slightly.”
t0“TOMATO”
Claim · model-written summary
Chlormequat reduced plant size.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- (2-chloroethyl) trimethylammonium chloride (chlormequat)e0
- Outcome
- size of the plantse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Another growth retardant, (2-chloroethyl) trimethylammonium chloride (chlormequat), reduced the size of the plants appreciably, increased earliness slightly, but significantly reduced total yields.”
t0“TOMATO”
Claim · model-written summary
Chlormequat slightly increased earliness.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- (2-chloroethyl) trimethylammonium chloride (chlormequat)e0
- Outcome
- earlinesse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Another growth retardant, (2-chloroethyl) trimethylammonium chloride (chlormequat), reduced the size of the plants appreciably, increased earliness slightly, but significantly reduced total yields.”
t0“TOMATO”
Claim · model-written summary
Chlormequat significantly reduced total yield.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- (2-chloroethyl) trimethylammonium chloride (chlormequat)e0
- Outcome
- total yieldse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Another growth retardant, (2-chloroethyl) trimethylammonium chloride (chlormequat), reduced the size of the plants appreciably, increased earliness slightly, but significantly reduced total yields.”
t0“TOMATO”
Claim · model-written summary
Ethephon concentrated fruit ripening after 6–9 days.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- (2-chloroethyl) phosphonic acid (ethephon)e0
- Outcome
- ripening of fruite0
- Direction
- Concentratede0
- Value
- 6–9 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrated ripening of fruit was obtained 6–9 days after (2-chloroethyl) phosphonic acid (ethephon) was sprayed on tomato plants.”
Claim · model-written summary
Ethephon at 4000 ppm appreciably reduced total yield and fruit size.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 4000 ppme0
- Outcome
- total yields and size of fruite0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The high concentration of 4000 ppm of this chemical reduced total yields and size of fruit appreciably.”
t0“TOMATO”
Claim · model-written summary
Ethephon at 1000 ppm caused an initial ripening peak.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- 1000 ppme0
- Outcome
- initial peak of fruit ripeninge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 1000 ppm, ethephon produced an initial peak of fruit ripening”
t0“TOMATO”
Claim · model-written summary
Plants treated with 1000 ppm ethephon produced another later peak of ripe fruit.
- Taxon
- TOMATOSolanum lycopersicumt0
- Treatment
- 1000 ppme1
- Outcome
- another peak of ripe fruite0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“since plants were not destroyed, they produced another peak of ripe fruit later in the season.”
t0“TOMATO”
e1“At 1000 ppm, ethephon produced an initial peak of fruit ripening”
The same questions in other papers
Daminozide · yield · Solanum lycopersicum (tomato)Results differ
7 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
6 papers more in this group
See all 10 papers →chlormequat chloride · yield · Solanum lycopersicum (tomato)Results differ
2 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →Daminozide · phenology · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
(2-chloroethyl)phosphonic acid · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results
20 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
20 papers more in this group
See all 24 papers →phosphonic acid · quality: postharvest · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
2-chloroethyl group · quality: postharvest · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
succinic acid · yield · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
chlormequat chloride · phenology · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.