Results 191 to 200 of about 16,202 (227)
Some of the next articles are maybe not open access.
THE COMPARATIVE ANATOMY OF THE SECONDARY XYLEM AND THE PHYLOGENY OF THE EUCOMMIACEAE
American Journal of Botany, 1940IN 1921 Parkin, discussing the systematic position of Eucommia, wrote: "This tree might repay further study from the anatomical side. The wood especially requires minute examination. Facts might possibly be forthcoming which would throw light on its relationship." The present writer (1938) came to the same conclusion in the course of an investigation ...
openaire +1 more source
The effect of light deficiency on the formation of secondary xylem
Wood Science and Technology, 1969Light is one of the most important environmental factors influencing the cambium activity and consequently the formation of the secondary xylem. Its deficiency more or less inhibits the lignification of cell walls and also the formation of conductive tissues represented by the vessel system. From these results, if compared with those of bent stems, the
openaire +1 more source
Xylem pathways in liana stems with variant secondary growth
Botanical Journal of the Linnean Society, 1992FISHER, J. B. & EWERS, F. W., 1992. Xylem pathways in liana stems with variant secondary growth. The three-dimensional construction of stem xylem in tropical lianas (woody vines) was studied using several approaches: 1. observations of the xylem surface in stems with bark removed after NaOH treatment or natural retting; 2.
Fisher, J, Ewers, F
openaire +1 more source
THE PRODUCTION AND DIFFERENTIATION OF SECONDARY XYLEM IN XANTHIUM PENSYLVANICUM
American Journal of Botany, 1970The removal of leaves and buds from the shoot of Xanthium seedlings caused the cessation of xylem fiber differentiation in all internodes while allowing the production of cambial derivatives to continue toward both the xylem and the phloem.
openaire +1 more source
The Anatomy of Secondary Xylem and the Classification of Ancient Dicotyledons
1977The stem wood of about 700 species belonging to 32 families of the order Magnoliales s.l., plus further taxa exhibiting primitive wood anatomical features, was investigated. On this basis, six structural groups can be established each of which show a marked gradation from primitive to advanced stages.
openaire +1 more source