Claim · model-written summary
Severe drought significantly reduced glyphosate efficacy on the weed species.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e6“Severe drought stress significantly reduced glyphosate efficacy”
t1“two morphologically distinct weed species”
Title
Tasawer Abbas; Naila Farooq Weed Science 2026. doi:10.1017/wsc.2025.10082
Other claims from this paper (10)
- Intervention effect Leaf water content fell more in P. hysterophorus (26%) than in S. faberi (23%) under drought.
- Intervention effect Drought stress significantly reduced leaf water content and stomatal conductance in both weed species.
- Intervention effect Drought reduced stomatal conductance by 82% in P. hysterophorus.
- Intervention effect Drought reduced stomatal conductance by 83% in S. faberi.
- Intervention effect Severe drought reduced shikimic acid concentration by 41% to 59% in both weed species.
- Intervention effect Under severe drought, glyphosate suppressed weed mortality by up to 63% less.
- Intervention effect Severe drought reduced glyphosate-driven biomass reduction by up to 58% in the weed species.
- Association Shikimic acid concentration and weed mortality both correlated positively and strongly with change in leaf water content.
- Intervention effect Glyphosate applied when leaf water content fell below 70% gave poor weed control at recommended field rates.
- Recommendation Leaf water content should be used to monitor drought stress, schedule irrigation before glyphosate application and optimise the dose.