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Expression of ABA-responsive genes in bud n-2 under a low R:FR and at various times after increasing the R:FR. (A) HIS1-3, (B) NAP, (C) RAP2.6, (D) PP2-A5, (E) average positive normalized expression. Data are means ± SE with n = 4. Asterisks indicate a significant difference between a low and low to high R:FR at α = 0.05. This figure is available in colour at JXB online.
