Abstract
Abstract (2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively. Lodging at seed harvest was reduced from 53% to 10%. The 2500 and 5000 ppm treatments had no effects on seed yield, but the 10,000 ppm treatment tended to lower it. Seed weight and seed germination were not affected by treatment.
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Claims 8
Claim · model-written summary
Ethephon at 2500 ppm reduced onion seedstalk height to 68 cm from 94 cm.
- Taxon
- onions
Allium cepae1 - Treatment
- ethephone1
- Outcome
- seedstalk heighte1
- Direction
- reducede1
- Value
- 68e1
- Qualifier
- at 2500e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
Claim · model-written summary
Ethephon at 5000 ppm reduced onion seedstalk height to 62 cm from 94 cm.
- Taxon
- onionsAllium cepae1
- Treatment
- ethephone1
- Outcome
- seedstalk heighte1
- Direction
- reducede1
- Value
- 62e1
- Qualifier
- 5000e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
Claim · model-written summary
Ethephon at 10,000 ppm reduced onion seedstalk height to 54 cm from 94 cm.
- Taxon
- onionsAllium cepae1
- Treatment
- ethephone1
- Outcome
- seedstalk heighte1
- Direction
- reducede1
- Value
- 54 cme1
- Qualifier
- 10,000 ppme1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
Claim · model-written summary
Ethephon reduced lodging at seed harvest in onion from 53% to 10%.
- Taxon
- onionsAllium cepae1
- Treatment
- ethephone1
- Outcome
- Lodging at seed harveste3
- Direction
- reducede3
- Value
- from 53% to 10%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
e3“Lodging at seed harvest was reduced from 53% to 10%”
Claim · model-written summary
Ethephon at 2500 ppm had no effect on onion seed yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
e2“The 2500 and 5000 ppm treatments had no effects on seed yield”
Claim · model-written summary
Ethephon at 5000 ppm had no effect on onion seed yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
e2“The 2500 and 5000 ppm treatments had no effects on seed yield”
Claim · model-written summary
Ethephon at 10,000 ppm tended to lower onion seed yield.
- Taxon
- onionsAllium cepae1
- Treatment
- ethephone1
- Outcome
- seed yielde2
- Direction
- tended to lowere4
- Qualifier
- 10,000 ppme4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
e2“The 2500 and 5000 ppm treatments had no effects on seed yield”
e4“the 10,000 ppm treatment tended to lower it”
Claim · model-written summary
Ethephon did not affect onion seed weight or seed germination.
- Taxon
- onionsAllium cepae1
- Treatment
- ethephone1
- Outcome
- Seed weight and seed germinatione5
- Direction
- not affectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“(2-Chloroethyl)phosphonic acid (ethephon) applied to onions ( Allium cepa L. cv. Excel) at 5% seedstalk emergence at 2500, 5000, or 10,000 ppm reduced seedstalk height from 94 to 68, 62, and 54 cm, respectively”
e5“Seed weight and seed germination were not affected by treatment”
The same questions in other papers
(2-chloroethyl)phosphonic acid · yield · Allium cepa (onion)Results differ
3 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
3 papers more in this group
See all 7 papers →(2-chloroethyl)phosphonic acid · growth · Allium cepa (onion)Positive and negative results
5 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
7 papers more in this group
See all 11 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.