glyphosate · Yield · Brassica napus (oilseed rape)
15 claims from these papers; 7 citations between them.
Papers whose results differ, checked claim by claim 2
2 pairs of papers on this question report results that differ: an effect in one paper, the opposite effect or no effect in the other. Two model reviewers reading both claims accepted each pair.
- Effect of preharvest applications of glyphosate on the drying, yield and quality of canola (2000)
no changeGlyphosate treatments had little or no effect on canola seed yield, seed weight and seed germination.
Impact of Late‐Season Herbicide Applications on Winter Canola Yield and Seed Quality (2019)decreaseGlyphosate at bolting reduced winter canola grain yield by 531 kg ha –1 versus untreated control.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Feral Rye (Secale cereale) Control in Winter Canola in the Pacific Northwest (2015)
increaseSplit glyphosate applications increased canola yield.
Impact of Late‐Season Herbicide Applications on Winter Canola Yield and Seed Quality (2019)decreaseGlyphosate at bolting reduced winter canola grain yield by 531 kg ha –1 versus untreated control.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
How these papers cite each other
7 citations between these papers: 4 on the same side, 3 across the two sides.
- Positive result
- Negative result or no effect
- Citation, pointing to the cited paper
- Citation across the two sides
- Larger circle: more citations overall
Years run left to right. Citations come from the papers’ OpenAlex reference lists. Hover a paper to bring forward its citations; click it to open the paper.
Papers reporting a positive result 6
Herbicide-tolerant canola: weed control and yield comparisons in western Canada · 2000
- positive
Glyphosate Timing and Tillage System Effects on Glyphosate-Resistant Canola (Brassica napus)1 · 2002
- positive
- positive
- positive
- positive
- positive
- positive
Effects of two chemical ripeners on chlorophyll fluorescence of pods in rapeseed · 2010
- positive
Feral Rye (Secale cereale) Control in Winter Canola in the Pacific Northwest · 2015
- positive
Papers reporting a negative result or no effect 3
Effect of preharvest applications of glyphosate on the drying, yield and quality of canola · 2000
- no effect
- negative
- negative
Impact of Late‐Season Herbicide Applications on Winter Canola Yield and Seed Quality · 2019
- negative
- negative
- negative
A paper is on the positive side when any of its claims here is positive. Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.