Claim · model-written summary
Higher simazine rates at all three spring stages decreased wheat grain yields.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- higher simazine rates applied at all three spring growth stagese0
- Outcome
- grain yieldse0
- Direction
- decreasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e0“Lower simazine rates applied at anthesis and higher simazine rates applied at all three spring growth stages decreased grain yields.”
Title
Nitrogen Use in Winter Wheat in Response to Systematic Pesticides1
Joseph L. Moyer; Gary M. Paulsen Agronomy Journal 1977. doi:10.2134/agronj1977.00021962006900010015x
Other claims from this paper (11)
- Intervention effect Simazine increased wheat nitrate reductase activity.
- Intervention effect Simazine increased wheat nitrate concentration.
- Intervention effect Simazine decreased wheat glutamine synthetase activity.
- Intervention effect Autumn pesticide treatments did not affect wheat forage yield or protein content.
- Intervention effect Lower simazine rates applied at anthesis decreased wheat grain yields.
- Intervention effect Simazine treatments that reduced grain yield increased wheat grain protein concentration.
- Intervention effect Guthion applied in autumn increased wheat grain protein concentration.
- Intervention effect Other pesticide treatments had no effect on wheat protein or yield.
- Intervention effect Simazine at anthesis significantly decreased wheat grain test weights.
- Mechanism The authors attribute lower grain yield and higher protein concentration to detrimental photosynthate accumulation effects of simazine and no direct foliar effect on nitrogen assimilation.
- Mechanism The authors attribute decreased wheat grain test weight to floret sterility and undeveloped grains.