Claim · model-written summary
Repeated glyphosate or 2,4-D in 1981 increased wheat yield (9%).
- Taxon
- wheat
Triticum aestivume0 - Treatment
- repeated application of glyphosate or 2,4-De4
- Outcome
- yielde4
- Direction
- increasede4
- Qualifier
- 14 and 9%e4
- Comparator
- unsprayed controlse6
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on the yield of wheat”
e4“In 1981, repeated application of glyphosate or 2,4-D increased yield by 14 and 9%”
e6“in 1981-82 there was a significant (P<0.05) yield increase from some herbicide treatments, compared with the unsprayed controls”
Title
Control of silverleaf nightshade ( Solanum elaeagnifolium ) increases the grain yields of wheat
D Lemerle; AR Leys Australian Journal of Experimental Agriculture 1991. doi:10.1071/ea9910233
Other claims from this paper (7)
- Observation Silverleaf nightshade density increased from 8 to 17 shoots/m2 in untreated controls and in plots treated with 2,4-D in February.
- Intervention effect Glyphosate treatment throughout summer reduced the silverleaf nightshade population to 1.6 shoots/m2.
- Intervention effect Treatment with 2,4-D throughout each summer retarded the increase in silverleaf nightshade density to 11.4 shoots/m2.
- Intervention effect Control of silverleaf nightshade before 1979 or 1980 did not affect wheat grain yield.
- Intervention effect Repeated glyphosate in 1981 increased wheat yield (14%).
- Intervention effect Application of 2,4-D in February increased wheat yield by 5% in 1981.
- Intervention effect In the 1982 drought year, herbicide treatments increased wheat yield by 69, 49 and 17% (glyphosate, repeated 2,4-D and February 2,4-D, in that order).