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Enzyme activities of 1-FEH, 6-FEH, and INV at fresh level in roots of DH 307, DH 125, DH 139, DH 338, and the parental lines of Westonia and Kauz under drought (open circles) and irrigated conditions (closed circles) in the field. Open, dashed and closed arrows indicate start of drought treatment, 6 and 10 mm of rainfall, respectively.
