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Content of inactivated form of ABA (ABA-glc) and active ABA measured in the seeds of two L. angustifolius cultivars (Lazur—(A,C); Sethes Fruehe Rote—(B,D)) germinated at 7 °C or 13 °C in water (control), butenolide or hydroprimed in water for 3 h at 20 °C. But 1, But 2, But 3: 10−6 M, 10−5 M, 10−4 M butenolide concentrations. Different letters over error bars (±SE; n = 3) indicate significant differences (Duncan’s multiple range test, p < 0.05).
