Abstract
Abstract The effect of 2-chloroethanepliosphonic acid (ethrel) on the sex expression of pickling cucumbers was studied. Tests to determine concentrations, effect on sex expression, and yield potential were conducted in greenhouse and field situations. As many as 19 successive pistillate nodes were observed for the treated monoecious cultivar ‘SC 23’. The most effective concentrations of ethrel were 120, 180 and 240 ppm for these studies. These rates in single or multiple application resulted in the greatest number of continuous female nodes with the least shortening of internodes. A much lower concentration of 24 ppm had little effect as to stunting and only limited effect on sex conversion. Significant yield increases, as measured by value per acre, were obtained for 3 monoecious cultivars, ‘Model’, ‘SC 23’ and ‘Chipper’, treated with ethrel.
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Claims 9
Claim · model-written summary
Treated SC 23 plants had as many as 19 successive pistillate nodes.
- Taxon
- Cucumis sativus
Cucumis sativust0 - Material
- ‘SC 23’e0
- Treatment
- treatede0
- Outcome
- successive pistillate nodese0
- Value
- 19 successive pistillate nodese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As many as 19 successive pistillate nodes were observed for the treated monoecious cultivar ‘SC 23’.”
t0“Cucumis sativus”
Claim · model-written summary
Ethrel concentrations of 120, 180 and 240 ppm were most effective.
- Taxon
- Cucumis sativusCucumis sativust0
- Treatment
- ethrele0
- Outcome
- most effective concentrationse0
- Value
- 120, 180 and 240 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most effective concentrations of ethrel were 120, 180 and 240 ppm for these studies.”
t0“Cucumis sativus”
Claim · model-written summary
At 120, 180 and 240 ppm, ethrel gave the greatest number of continuous female nodes.
- Taxon
- Cucumis sativusCucumis sativust0
- Treatment
- ethrel were 120, 180 and 240 ppme0
- Outcome
- continuous female nodese0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most effective concentrations of ethrel were 120, 180 and 240 ppm for these studies. These rates in single or multiple application resulted in the greatest number of continuous female nodes with the least shortening of internodes.”
t0“Cucumis sativus”
Claim · model-written summary
At those ethrel rates, internodes showed the least shortening.
- Taxon
- Cucumis sativusCucumis sativust0
- Treatment
- These rates in single or multiple applicatione0
- Outcome
- internodese0
- Direction
- least shorteninge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These rates in single or multiple application resulted in the greatest number of continuous female nodes with the least shortening of internodes.”
t0“Cucumis sativus”
Claim · model-written summary
Ethrel at 24 ppm had little stunting effect.
- Taxon
- Cucumis sativusCucumis sativust0
- Treatment
- 24 ppme0
- Outcome
- stuntinge0
- Direction
- little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A much lower concentration of 24 ppm had little effect as to stunting and only limited effect on sex conversion.”
t0“Cucumis sativus”
Claim · model-written summary
Ethrel at 24 ppm had only limited sex conversion.
- Taxon
- Cucumis sativusCucumis sativust0
- Treatment
- 24 ppme0
- Outcome
- sex conversione0
- Direction
- limited effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A much lower concentration of 24 ppm had little effect as to stunting and only limited effect on sex conversion.”
t0“Cucumis sativus”
Claim · model-written summary
Ethrel significantly increased yield value per acre in Model.
- Taxon
- Cucumis sativusCucumis sativust0
- Material
- ‘Model’e0
- Treatment
- ethrele0
- Outcome
- yielde0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant yield increases, as measured by value per acre, were obtained for 3 monoecious cultivars, ‘Model’, ‘SC 23’ and ‘Chipper’, treated with ethrel.”
t0“Cucumis sativus”
Claim · model-written summary
Ethrel significantly increased yield value per acre in SC 23.
- Taxon
- Cucumis sativusCucumis sativust0
- Material
- ‘SC 23’e0
- Treatment
- ethrele0
- Outcome
- yielde0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant yield increases, as measured by value per acre, were obtained for 3 monoecious cultivars, ‘Model’, ‘SC 23’ and ‘Chipper’, treated with ethrel.”
t0“Cucumis sativus”
Claim · model-written summary
Ethrel significantly increased yield value per acre in Chipper.
- Taxon
- Cucumis sativusCucumis sativust0
- Material
- ‘Chipper’e0
- Treatment
- ethrele0
- Outcome
- yielde0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant yield increases, as measured by value per acre, were obtained for 3 monoecious cultivars, ‘Model’, ‘SC 23’ and ‘Chipper’, treated with ethrel.”
t0“Cucumis sativus”
The same questions in other papers
(2-chloroethyl)phosphonic acid · yield · Cucumis sativus (cucumber)Results differ
14 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
14 papers more in this group
See all 18 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.