Fig. 4From: Partial and full root-zone drought stresses account for differentiate root-sourced signal and yield formation in primitive wheatThe relationship between leaf ABA concentration and stomatal conductance (a, c), and between leaf ABA and ZR concentration (b, d) in four primitive wheat varieties, MO1, MO4, DM22 and DM31 subjected to three water stress treatments. The fitted linear regressions are given: *P < 0.05; **P < 0.01; ***P < 0.001. Trial 1Back to article page