Application of dyes to roots or shoots is an easy way to visualize xylem pathways in plants. It was shown that upward transport was sectorial straight. A main root appeared to contribute to the transport to several basal shoots. Application of dyes to shoots showed that each basal shoot is supplied by only a part of the root xylem. It is supposed that at the moment of appearance of a new basal shoot, the root xylem becomes enveloped by a new xylem cylinder, resulting in a limited area of root xylem serving the former developed shoot. The large variation in shoot diameter in a rose crop is discussed in relation to xylem systems.

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Acta botanica neerlandica

CC BY 3.0 NL ("Naamsvermelding")

Koninklijke Nederlandse Botanische Vereniging

C.A.M. Marcelis-van Acker, C.J. Keijzer, & P.A. van de Pol. (1993). Xylem pathways in rose plants in relation to basal shoot development. Acta botanica neerlandica, 42(3), 313–318.