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. 2018 Nov 10;123(4):681–689. doi: 10.1093/aob/mcy201

Fig. 2.

Fig. 2.

ABA and LT synergistically enhanced bud cold-hardiness in grapevine dormant buds. (A) Effects of LT, ABA and ABA + LT on the low thermal exotherm (LTE) of grapevine dormant buds collected on 14 May were determined by differential thermal analysis after 0, 3, 7, 12 and 16 d of treatment. Values are averages for 20 buds and bars represent ± s.d. *P ≤ 0.05 (Dunnett’s multiple comparison test). (B) Effect of ABA concentration on the LTE of grapevine buds collected on 23 April after 1 week of LT in the dark. Values are averages for 20 buds and bars represent ± s.d. *P ≤ 0.05; **P ≤ 0.01; ***P ≤ 0.001 (Dunnett’s multiple comparison test). (C) Effect of hydrogen cyanamide (HC) on the LTE of grapevine dormant buds treated with ABA + LT. The buds were collected on 23 April. Values are the average of 20 buds and bars represent ± s.d. *P ≤ 0.05 (Dunnett’s multiple comparison test).