Fig. 7From: Relationship between formation of earlywood vessels and leaf phenology in two ring-porous hardwoods, Quercus serrata and Robinia pseudoacacia, in early springMaximum ascent of dye in Q. serrata and R. pseudoacacia. The maximum ascent of dye refers to the distance from the site of introduction of dye to the farthest extent of coloration. In Q. serrata, dye reached close to the top of the stem on 1st May. In R. pseudoacacia, dye reached close to the top of the stem on 24th AprilBack to article page