Abstract
Abstract Studies involving the use of TIBA (2,3,5‐triiodobenzoic acid) on indeterminate soybeans [ Glycine max (L.) Merrill] have shown that increased grain yields are more likely to occur when the growth regulator is applied as a single application during flower initiation. TIBA studies using determinate varieties are more limited. Results from these studies are more erratic and yield increases are more likely to be associated with a much earlier time of application. In order to determine the most appropriate method of applying TIBA to determinate soybeans, a single rate (38g/ha) of TIBA was applied to the soybean variety ‘Bragg’ either in a single or in multiple applications during early vegetative growth stages for two years in field experiments. TIBA applications during the two, four, or six trifoliolate growth stage increased soybean yields over the 2‐year period. These yield increases ranged from 7.0 to 9.8%. In general, a single application was just as effective as multiple applications in increasing yields. Plant height was reduced by as much as 13.3% when TIBA was applied at either the four or six trifoliolate growth stage. This reduction in plant height did not help reduce lodging as has been reported for TIBA applications made later in the growing season on indeterminate varieties. In this study TIBA either had no effect on lodging or increased lodging.
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Claims 5
Claim · model-written summary
TIBA at the two-, four-, or six-trifoliolate stage increased soybean yield by 7.0–9.8% over two years.
- Taxon
- soybean
Glycine maxt0 - Material
- Braggt0
- Treatment
- TIBA applications during the two, four, or six trifoliolate growth stagee0
- Outcome
- soybean yieldse0
- Direction
- increasede0
- Value
- 7.0 to 9.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TIBA applications during the two, four, or six trifoliolate growth stage increased soybean yields over the 2‐year period. These yield increases ranged from 7.0 to 9.8%.”
t0“Bragg Soybean”
Claim · model-written summary
A single TIBA application was generally as effective as multiple applications for increasing yield.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- single applicatione0
- Outcome
- yieldse0
- Direction
- increasinge0
- Comparator
- multiple applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, a single application was just as effective as multiple applications in increasing yields.”
t0“Soybean”
Claim · model-written summary
TIBA at four or six trifoliolate reduced plant height by up to 13.3%.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- TIBA was applied at either the four or six trifoliolate growth stagee0
- Outcome
- Plant heighte0
- Direction
- reducede0
- Value
- 13.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant height was reduced by as much as 13.3% when TIBA was applied at either the four or six trifoliolate growth stage.”
t0“Soybean”
Claim · model-written summary
The height reduction did not reduce lodging.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- lodginge0
- Direction
- did not help reducee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This reduction in plant height did not help reduce lodging”
t0“Soybean”
Claim · model-written summary
TIBA had either no effect on lodging or increased it.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- TIBAe0
- Outcome
- lodginge0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this study TIBA either had no effect on lodging or increased lodging.”
t0“Soybean”
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2,3,5-triiodobenzoic acid · growth · Glycine max (soybean)Results differ
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See all 121 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.