Abstract
The previously reported activity of benzyladenine and selected other cytokinin analogs to increase pod set in soybean (Glycine max [L.] Merr.) was further investigated to define the structure-activity relationship and evaluate the effects of the cytokinins on yield parameters. Enhancement of pod set was found to be greatest with N-6 saturated alkyl substituted analogs, and was only weakly associated with activity in a callus growth bioassay. The response of yield parameters to increasing pod load was evaluated by applying various cytokinin analogs having a range of pod set enhancement activity. The increased pod load at the treated nodes was not compensated by a reduction in pod number on the remainder of the plant. However, there was a compensatory decrease in seed size. Overall, a significant trend to greater total seed weight per plant was associated with the increased pod number. Initial evaluations indicated that foliar applications of select cytokinins could temporarily increase pod number. However, the increases in pod number obtained with foliar treatments were too small to be of practical utility and were not maintained to maturity.
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Claims 7
Claim · model-written summary
N-6 saturated alkyl substituted analogs gave the greatest pod set enhancement.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- N-6 saturated alkyl substituted analogse0
- Outcome
- Enhancement of pod sete0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Enhancement of pod set was found to be greatest with N-6 saturated alkyl substituted analogs”
t0“Soybean”
Claim · model-written summary
Pod set enhancement was weakly associated with callus growth bioassay activity.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- Enhancement of pod sete1
- Comparator
- activity in a callus growth bioassaye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was only weakly associated with activity in a callus growth bioassay”
e1“Enhancement of pod set was found to be greatest”
t0“Soybean”
Claim · model-written summary
Increased pod load at treated nodes was not compensated by lower pod number elsewhere on the plant.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- pod number on the remainder of the plante0
- Direction
- not compensatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased pod load at the treated nodes was not compensated by a reduction in pod number on the remainder of the plant.”
t0“Soybean”
Claim · model-written summary
Increased pod load was accompanied by a compensatory decrease in seed size.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- seed sizee0
- Direction
- decreasee0
- Comparator
- increased pod loade1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, there was a compensatory decrease in seed size.”
e1“The increased pod load at the treated nodes”
t0“Soybean”
Claim · model-written summary
Greater total seed weight per plant was significantly associated with increased pod number.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- total seed weight per plante0
- Direction
- greatere0
- Comparator
- increased pod numbere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant trend to greater total seed weight per plant was associated with the increased pod number”
t0“Soybean”
Claim · model-written summary
Foliar applications of select cytokinins temporarily increased pod number.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- foliar applications of select cytokininse0
- Outcome
- pod numbere0
- Direction
- increasee0
- Qualifier
- temporarilye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar applications of select cytokinins could temporarily increase pod number”
t0“Soybean”
Claim · model-written summary
Foliar-treatment increases in pod number were too small for practical utility and did not persist to maturity.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- increases in pod numbere0
- Direction
- were not maintainede0
- Qualifier
- too small to be of practical utilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increases in pod number obtained with foliar treatments were too small to be of practical utility and were not maintained to maturity”
t0“Soybean”
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See all 404 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.