Claim · model-written summary
Hexane tuber extracts caused root electrolyte loss.
- Taxon
- Cotton
Gossypium hirsutume0 - Treatment
- hexane extracts of tuberse0
- Outcome
- lost electrolytes from their rootse0
- Direction
- loste0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton plants grown in soil treated with hexane extracts of tubers containing non-polar allelopathic substances also lost electrolytes from their roots”
Title
Allelopathy of purple nutsedge (Cyperus rotundus L.) on cotton (Gossypium)
Gerardo Martinez-Díaz UA Campus Repository (The University of Arizona) 1997
Other claims from this paper (18)
- Intervention effect Tuber extracts inhibited cotton secondary root growth more than primary root growth.
- Intervention effect At 500 ppmw, primary root growth was inhibited 44 percent.
- Intervention effect At 500 ppmw, secondary root growth was inhibited 64 percent.
- Intervention effect Non-polar extracts inhibited cotton growth more than polar extracts.
- Intervention effect At 250 ppmw, plant water potential fell from -0.7 to -1.3 MPa.
- Intervention effect At 250 ppmw, leaf water content fell from 89 to 79 percent.
- Intervention effect At 250 ppmw, leaf osmotic potential fell from -0.8 to -1.0 MPa.
- Intervention effect Photosynthetic capacity fell 50 percent in both cotton cultivars after 62 ppmw treatment.
- Intervention effect DPL 5415 leaves dehydrated below 70 percent relative water content at 125 ppmw.
- Intervention effect DPL 5415 quantum yield fell at 125 ppmw.
- Observation Pima S-7 tolerated greater dehydration without reduced quantum yield.
- Intervention effect Leaf expansion was inhibited 30 percent by 250 ppmw hexane extract.
- Intervention effect Epicotyl growth was inhibited 37 percent by 250 ppmw hexane extract.
- Intervention effect Trapped volatile substances from purple nutsedge tubers inhibited cotton seedling growth.
- Intervention effect Purple nutsedge volatiles caused cotton root leakage.
- Observation Hexane extracts contained substances with sesquiterpene-like retention times.
- Observation Purple nutsedge tuber volatiles contained substances with sesquiterpene-like retention times.
- Mechanism Authors attribute cotton growth inhibition to root membrane, water status and photosynthesis disruption.