Abstract
‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970. 2‐chloroethylphosphonic acid (Ethrel) at concentrations of 0 to 1000 ppm was applied as a foliar spray when third trifoliolate leaves were 75% expanded. Plants were assayed during the growing season for phenylalanine ammonia lyase (PAL) (4.3.1.a) and peroxidase (1.11.1.7) activity in the stem, and nitrate reductase (NR) (1.6.6.1) activity in the leaves. Acid‐detergent fiber and lignin analyses along with anatomical observations were performed on the stems. Plants were rated for extent of lodging and seed yields were determined. NR activity peaked on July 6, PAL activity peaked during mid‐July, and peroxidase activity peaked in mid‐ to late August. Peroxidase activity increased in response to Ethrel, particularly in the internodes where lodging was first evident in control plants. PAL activity increased in response to Ethrel during the seasonal peak in enzyme activity. Corsoy lodged more than did the other varieties, but lodging was reduced in all varieties. Seed yield was not reduced by Ethrel, indicating that this growth substance may be of use to decrease harvest losses of soybean seed due to lodging.
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Claims 9
Claim · model-written summary
Leaf nitrate reductase activity peaked July 6.
- Taxon
- soybeans
Glycine maxe1 - Organ / stage
- leavese2
- Gene
- NRe0
- Outcome
- NR activitye0
- Direction
- peakede0
- Value
- July 6e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NR activity peaked on July 6”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
e2“Plants were assayed during the growing season for phenylalanine ammonia lyase (PAL) (4.3.1.a) and peroxidase (1.11.1.7) activity in the stem, and nitrate reductase (NR) (1.6.6.1) activity in the leaves.”
Claim · model-written summary
PAL activity peaked in mid-July.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PAL activity peaked during mid‐July”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
Claim · model-written summary
Peroxidase activity peaked in mid- to late August.
- Taxon
- soybeansGlycine maxe1
- Gene
- peroxidasee0
- Outcome
- peroxidase activitye0
- Direction
- peakede0
- Value
- mid‐ to late Auguste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“peroxidase activity peaked in mid‐ to late August”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
Claim · model-written summary
Ethrel increased peroxidase activity, particularly in internodes.
- Taxon
- soybeansGlycine maxe1
- Organ / stage
- internodese0
- Treatment
- Ethrele0
- Gene
- Peroxidasee0
- Outcome
- Peroxidase activitye0
- Direction
- increasede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peroxidase activity increased in response to Ethrel, particularly in the internodes where lodging was first evident in control plants.”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
Claim · model-written summary
Ethrel increased PAL activity at its seasonal peak.
- Taxon
- soybeansGlycine maxe1
- Treatment
- Ethrele0
- Gene
- PALe0
- Outcome
- PAL activitye0
- Direction
- increasede0
- Qualifier
- during the seasonal peak in enzyme activitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PAL activity increased in response to Ethrel during the seasonal peak in enzyme activity.”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
Claim · model-written summary
Corsoy lodged more than the other varieties.
- Taxon
- soybeansGlycine maxe1
- Material
- Corsoye0
- Outcome
- lodgede0
- Direction
- moree0
- Comparator
- the other varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corsoy lodged more than did the other varieties”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
Claim · model-written summary
Ethrel reduced lodging in all varieties.
- Taxon
- soybeansGlycine maxe1
- Treatment
- Ethrele2
- Outcome
- lodginge0
- Direction
- reducede0
- Qualifier
- all varietiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lodging was reduced in all varieties”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
e2“Peroxidase activity increased in response to Ethrel, particularly in the internodes where lodging was first evident in control plants.”
Claim · model-written summary
Ethrel did not reduce seed yield.
- Taxon
- soybeansGlycine maxe1
- Treatment
- Ethrele0
- Outcome
- Seed yielde0
- Direction
- not reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield was not reduced by Ethrel”
e1“‘Hark,’ ‘Chippewa,’ and ‘Corsoy’ soybeans [ Glycine max (L.) Merr.] were grown in field plots in 1969 and 1970.”
Claim · model-written summary
The authors suggest Ethrel may reduce soybean seed harvest losses from lodging.
- Taxon
- soybeanGlycine maxe0
- Treatment
- this growth substancee0
- Outcome
- decrease harvest losses of soybean seed due to lodginge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this growth substance may be of use to decrease harvest losses of soybean seed due to lodging”
The same questions in other papers
(2-chloroethyl)phosphonic acid · growth · Glycine max (soybean)Results differ
6 papers in the same direction as this paper · 4 in the opposite direction
- negative
- positive
- negative
7 papers more in this group
See all 11 papers →(2-chloroethyl)phosphonic acid · yield · Glycine max (soybean)Results differ
6 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- positive
12 papers more in this group
See all 16 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.