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← Nature & AnimalsWhich water deficit consequence results when a soybean plant canopy experiences prolonged high vapor-pressure deficit?
A)Xylem embolism✓
B)Increased respiration rate
C)Decreased root hydraulic conductivity
D)Phloem sap backflow
💡 Explanation
Xylem embolism occurs due to increased tension from unchecked transpiration during a high vapor-pressure deficit; the cohesion-tension mechanism stresses the xylem vessels, because the water column snaps under excessive tension. This then leads to embolism, rather than increased root hydraulic conductivity.
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