Abstract
Abstract A method whereby wheat ( Triticum aestivum L.) can be sown earlier would be a distinct advantage in a wheatsoybean ( Glycine max (L.) Merr.) double‐cropping system. ‘Abe’ wheat overseeded in standing soybeans about 1 October was compared with conventionally seeded wheat after soybean harvest (1 to 10 November). Wheat overseeded consistently outyielded the conventionally seeded wheat. The optimum seeding rate for overseeding wheat was 101 kg/ha. Overseeded wheat failed during 1 of 4 years, because the soybean canopy was only 50% closed because of late planting (15 July). The growth regulator, 2, 3, 5‐triiodobenzoic acid (TIBA) was applied to ‘Bragg’ soybeans at different growth stages to create canopies with varying degrees of closure. Plots with these different canopies were overseeded with ‘Abe’ wheat at a rate of 134 kg/ha about 1 October (when the topmost soybean leaves began to turn yellow). Emergence and yield of wheat were significantly greater when no TIBA was applied (completely closed canopy) than when TIBA was applied and the canopy was not completely closed. Overseeding wheat in standing soybeans in double‐cropping was found to be an acceptable method of establishing the wheat crop However, emergence and yields of wheat can be expected to be reduced when the soybean canopy is less than completely closed.
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Claims 8
Claim · model-written summary
Overseeded wheat consistently yielded more than conventionally seeded wheat.
- Taxon
- Wheat
Triticum aestivume0 - Treatment
- overseedede0
- Outcome
- outyieldede0
- Direction
- outyieldede0
- Comparator
- conventionally seeded wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat overseeded consistently outyielded the conventionally seeded wheat”
Claim · model-written summary
The optimum overseeding rate for wheat was 101 kg/ha.
- Taxon
- wheatTriticum aestivume0
- Outcome
- optimum seeding ratee0
- Value
- 101 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“optimum seeding rate for overseeding wheat was 101 kg/ha”
Claim · model-written summary
Overseeded wheat failed in one of four years when the soybean canopy was only 50% closed.
- Taxon
- wheatTriticum aestivume0
- Outcome
- failede0
- Value
- 1 of 4 yearse0
- Qualifier
- soybean canopy was only 50% closede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overseeded wheat failed during 1 of 4 years, because the soybean canopy was only 50% closed”
Claim · model-written summary
Wheat emergence was significantly greater under a closed untreated soybean canopy than under a TIBA-treated incomplete canopy.
- Taxon
- wheatTriticum aestivume0
- Treatment
- no TIBA was appliede0
- Outcome
- Emergencee0
- Direction
- greatere0
- Comparator
- TIBA was appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Emergence and yield of wheat were significantly greater when no TIBA was applied (completely closed canopy) than when TIBA was applied and the canopy was not completely closed”
Claim · model-written summary
Wheat yield was significantly greater under a closed untreated soybean canopy than under a TIBA-treated incomplete canopy.
- Taxon
- wheatTriticum aestivume0
- Treatment
- no TIBA was appliede0
- Outcome
- yielde0
- Direction
- greatere0
- Comparator
- TIBA was appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Emergence and yield of wheat were significantly greater when no TIBA was applied (completely closed canopy) than when TIBA was applied and the canopy was not completely closed”
Claim · model-written summary
The authors considered overseeding in standing soybeans acceptable for wheat establishment.
- Taxon
- wheatTriticum aestivume0
- Outcome
- acceptable method of establishing the wheat crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overseeding wheat in standing soybeans in double‐cropping was found to be an acceptable method of establishing the wheat crop”
Claim · model-written summary
Wheat emergence is expected to decline when soybean canopy closure is incomplete.
- Taxon
- wheatTriticum aestivume0
- Treatment
- soybean canopye0
- Outcome
- emergencee0
- Direction
- reducede0
- Qualifier
- soybean canopy is less than completely closede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“emergence and yields of wheat can be expected to be reduced when the soybean canopy is less than completely closed”
Claim · model-written summary
Wheat yield is expected to decline when soybean canopy closure is incomplete.
- Taxon
- wheatTriticum aestivume0
- Treatment
- soybean canopye0
- Outcome
- yields of wheate0
- Direction
- reducede0
- Qualifier
- soybean canopy is less than completely closede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“emergence and yields of wheat can be expected to be reduced when the soybean canopy is less than completely closed”
The same questions in other papers
2,3,5-triiodobenzoic acid · growth · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2,3,5-triiodobenzoic acid · yield · Triticum aestivum (wheat)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.