Abstract
Miller, R. T., Soltani, N., Robinson, D. E., Kraus, T. E. and Sikkema, P. H. 2012. Soybean (Glycine max) cultivar tolerance to saflufenacil. Can. J. Plant Sci. 92: 1319–1328. Six field studies were conducted over a 2-yr period (2009 and 2010) at three Ontario locations to determine the sensitivity of 12 glyphosate-resistant soybean cultivars to saflufenacil applied preemergence (PRE). The level of crop injury was dependent on environmental conditions shortly after application. When soybean emergence was delayed due to cool, wet conditions following planting, 52 and 59 g a.i. ha −1 of saflufenacil resulted in 10% injury 1 wk after emergence (WAE) in cultivars OAC Hanover and RCAT Matrix, respectively. In the other environments, greater than 200 g a.i. ha −1 of saflufenacil was required to induce the same level of injury at 1 WAE. Injury decreased with time; however, the more sensitive soybean cultivars were unable to recover from early-season injury sustained under adverse environmental conditions. A hydroponic bioassay was developed to screen differences in soybean tolerance to saflufenacil. OAC Hanover was more sensitive than all the other cultivars in both field and hydroponic testing (P<0.05). OAC Hanover yield was reduced regardless of environmental conditions. Under cool, wet conditions, 22 g a.i. ha −1 of saflufenacil resulted in a 10% yield reduction, while 46 g a.i. ha −1 was needed under warm dry conditions. All other cultivars required between 82 and 146 g a.i. ha −1 to obtain the same level of yield reduction. This research demonstrates that there is a difference in soybean cultivar sensitivity to saflufenacil applied PRE.
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Claims 12
Claim · model-written summary
Crop injury depended on conditions after application.
- Taxon
- soybean
Glycine maxe1 - Outcome
- crop injurye0
- Setting
- environmental conditions shortly after applicatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The level of crop injury was dependent on environmental conditions shortly after application”
e1“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Under cool wet emergence, OAC Hanover reached 10% injury at 52 g a.i. ha −1.
- Taxon
- soybeanGlycine maxe2
- Material
- OAC Hanovere0
- Treatment
- 52 and 59 g a.i. ha −1 of saflufenacile0
- Outcome
- injurye0
- Value
- 10%e0
- Qualifier
- cool, wet conditions following plantinge1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“52 and 59 g a.i. ha −1 of saflufenacil resulted in 10% injury 1 wk after emergence (WAE) in cultivars OAC Hanover and RCAT Matrix, respectively”
e1“cool, wet conditions following planting”
e2“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Under cool wet emergence, RCAT Matrix reached 10% injury at 59 g a.i. ha −1.
- Taxon
- soybeanGlycine maxe2
- Material
- RCAT Matrixe0
- Treatment
- 52 and 59 g a.i. ha −1 of saflufenacile0
- Outcome
- injurye0
- Value
- 10%e0
- Qualifier
- cool, wet conditions following plantinge1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“52 and 59 g a.i. ha −1 of saflufenacil resulted in 10% injury 1 wk after emergence (WAE) in cultivars OAC Hanover and RCAT Matrix, respectively”
e1“cool, wet conditions following planting”
e2“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Other environments required more than 200 g a.i. ha −1 for 10% injury.
- Taxon
- soybeanGlycine maxe1
- Treatment
- saflufenacile0
- Outcome
- same level of injurye0
- Value
- greater than 200 g a.i. ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the other environments, greater than 200 g a.i. ha −1 of saflufenacil was required to induce the same level of injury at 1 WAE”
e1“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Injury declined over time.
- Taxon
- soybeanGlycine maxe1
- Outcome
- Injurye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Injury decreased with time”
e1“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Sensitive cultivars failed to recover from early injury under adverse conditions.
- Taxon
- soybeanGlycine maxe0
- Outcome
- unable to recover from early-season injurye0
- Qualifier
- adverse environmental conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the more sensitive soybean cultivars were unable to recover from early-season injury sustained under adverse environmental conditions”
Claim · model-written summary
A hydroponic bioassay was developed to screen tolerance differences.
- Taxon
- soybeanGlycine maxe0
- Outcome
- screen differences in soybean tolerance to saflufenacile0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A hydroponic bioassay was developed to screen differences in soybean tolerance to saflufenacil”
Claim · model-written summary
OAC Hanover was more sensitive than all other cultivars in field and hydroponic tests.
- Taxon
- soybeanGlycine maxe1
- Material
- OAC Hanovere0
- Outcome
- sensitivee0
- Direction
- more sensitivee0
- Comparator
- all the other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OAC Hanover was more sensitive than all the other cultivars in both field and hydroponic testing (P<0.05)”
e1“glyphosate-resistant soybean cultivars”
Claim · model-written summary
OAC Hanover yield declined regardless of environment.
- Taxon
- soybeanGlycine maxe1
- Material
- OAC Hanovere0
- Outcome
- yielde0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OAC Hanover yield was reduced regardless of environmental conditions”
e1“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Cool wet conditions needed 22 g a.i. ha −1 for 10% yield reduction.
- Taxon
- soybeanGlycine maxe1
- Treatment
- 22 g a.i. ha −1 of saflufenacile0
- Outcome
- yielde0
- Direction
- reductione0
- Value
- 10%e0
- Qualifier
- cool, wet conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under cool, wet conditions, 22 g a.i. ha −1 of saflufenacil resulted in a 10% yield reduction”
e1“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Warm dry conditions needed 46 g a.i. ha −1 for the same yield reduction.
- Taxon
- soybeanGlycine maxe2
- Treatment
- 46 g a.i. ha −1e0
- Outcome
- yielde1
- Direction
- reductione1
- Value
- 10%e1
- Qualifier
- warm dry conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“46 g a.i. ha −1 was needed under warm dry conditions”
e1“10% yield reduction”
e2“glyphosate-resistant soybean cultivars”
Claim · model-written summary
Other cultivars required 82–146 g a.i. ha −1 for the same yield reduction.
- Taxon
- soybeanGlycine maxe1
- Material
- All other cultivarse0
- Outcome
- yield reductione0
- Direction
- reductione0
- Value
- between 82 and 146 g a.i. ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All other cultivars required between 82 and 146 g a.i. ha −1 to obtain the same level of yield reduction”
e1“glyphosate-resistant soybean cultivars”
The same questions in other papers
saflufenacil · crop injury · Glycine max (soybean)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.