Abstract
Abstract Clay dusts containing 2,4‐D or 2,4‐dibromophenoxyacetic acid with a complex of micronutrients, or 2,4‐D alone in some instances, were applied to the foliage of varieties of the common bean ( Phaseolus vulgaris ) and to sugar beet ( Beta saccharifera ) seedlings. Treatment of the bean plants when 14 days old with dusts containing 0.1% 2,4‐D with minerals, at 12 pounds per acre resulted in significant (P = .05) increases in growth (11.6% to 13.9%), in yield of pods (23% to 40%), and in production of seed (16% to 20%). KBr in the hormone‐nutrient dusts further increased the yield of seed. Dusts containing 0.5, 1.0, or 2.5% 2,4‐D, applied at 6 or 12 pounds per acre, repetition of application of all dusts, or application to bean plants older than 2 weeks were either nonadvantageous or depressed yield. The largest increase in root production by sugar beet plants, 44%, was obtained by the application of a composite dust containing 0.1% 2,4‐D to the foliage of 1‐month‐old seedlings. The incorporation of microelements with the 2,4‐D augmented the stimulatory action of the hormone and widened the concentration range of 2,4‐D which could be applied to the plants to increase yield.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
A 0.1% 2,4-D mineral dust increased growth in young bean plants by 11.6% to 13.9%.
- Taxon
- bean plantse0
- Treatment
- dusts containing 0.1% 2,4‐D with minerals, at 12 pounds per acree0
- Outcome
- growthe0
- Direction
- increasese0
- Value
- 11.6% to 13.9%e0
- Qualifier
- when 14 days olde0
Not reportedComparator
Verbatim
e0“Treatment of the bean plants when 14 days old with dusts containing 0.1% 2,4‐D with minerals, at 12 pounds per acre resulted in significant (P = .05) increases in growth (11.6% to 13.9%), in yield of pods (23% to 40%), and in production of seed (16% to 20%)”
Claim · model-written summary
The same treatment increased bean pod yield by 23% to 40%.
- Taxon
- bean plantse0
- Treatment
- dusts containing 0.1% 2,4‐D with minerals, at 12 pounds per acree0
- Outcome
- yield of podse0
- Direction
- increasese0
- Value
- 23% to 40%e0
Not reportedComparator
Verbatim
e0“Treatment of the bean plants when 14 days old with dusts containing 0.1% 2,4‐D with minerals, at 12 pounds per acre resulted in significant (P = .05) increases in growth (11.6% to 13.9%), in yield of pods (23% to 40%), and in production of seed (16% to 20%)”
Claim · model-written summary
The same treatment increased bean seed production by 16% to 20%.
- Taxon
- bean plantse0
- Treatment
- dusts containing 0.1% 2,4‐D with minerals, at 12 pounds per acree0
- Outcome
- production of seede0
- Direction
- increasese0
- Value
- 16% to 20%e0
Not reportedComparator
Verbatim
e0“Treatment of the bean plants when 14 days old with dusts containing 0.1% 2,4‐D with minerals, at 12 pounds per acre resulted in significant (P = .05) increases in growth (11.6% to 13.9%), in yield of pods (23% to 40%), and in production of seed (16% to 20%)”
Claim · model-written summary
Adding KBr further increased bean seed yield.
- Taxon
- bean plantse1
- Treatment
- KBr in the hormone‐nutrient dustse0
- Outcome
- yield of seede0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“KBr in the hormone‐nutrient dusts further increased the yield of seed”
e1“bean plants when 14 days old”
Claim · model-written summary
Higher 2,4-D doses, repeated applications or treatment after two weeks did not benefit bean yield or reduced it.
- Taxon
- bean plantse0
- Treatment
- Dusts containing 0.5, 1.0, or 2.5% 2,4‐D, applied at 6 or 12 pounds per acree0
- Outcome
- yielde0
- Direction
- depressede0
Not reportedComparator
Verbatim
e0“Dusts containing 0.5, 1.0, or 2.5% 2,4‐D, applied at 6 or 12 pounds per acre, repetition of application of all dusts, or application to bean plants older than 2 weeks were either nonadvantageous or depressed yield”
Claim · model-written summary
Composite 0.1% 2,4-D dust produced the largest sugar beet root production increase, 44%.
- Taxon
- sugar beet plants
Beta vulgaris subsp. vulgarise0 - Organ / stage
- 1‐month‐old seedlingse0
- Treatment
- application of a composite dust containing 0.1% 2,4‐De0
- Outcome
- root productione0
- Direction
- increasee0
- Value
- 44%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The largest increase in root production by sugar beet plants, 44%, was obtained by the application of a composite dust containing 0.1% 2,4‐D to the foliage of 1‐month‐old seedlings”
Claim · model-written summary
Microelements augmented the yield stimulation from 2,4-D and broadened its useful concentration range.
- Taxon
- bean plantse1
- Treatment
- incorporation of microelements with the 2,4‐De0
- Outcome
- stimulatory action of the hormonee0
- Direction
- augmentede0
Not reportedComparator
Verbatim
e0“The incorporation of microelements with the 2,4‐D augmented the stimulatory action of the hormone and widened the concentration range of 2,4‐D which could be applied to the plants to increase yield”
e1“bean plants when 14 days old”
e2“sugar beet plants”
The same questions in other papers
2,4-D · growth · Phaseolus vulgaris (common bean)Results differ
8 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- negative
14 papers more in this group
See all 18 papers →2,4-D · yield · Beta vulgaris (beet)Positive and negative results
1 in the opposite direction
- negative
2,4-D · yield · Phaseolus vulgaris (common bean)Positive and negative results
2 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
3 papers more in this group
See all 7 papers →class · yield · Phaseolus vulgaris (common bean)Positive and negative results
12 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
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.