%0 Journal Article %T The structure of vascular system in the leaves of apple-trees with different level of efficiency %A Andrey V. Derevinsky %A A.A. Derevinskaya %J Modern Phytomorphology %D 2012 %I Modern Phytomorphology %X It has established that morphological parameters of vascular system of the leaves of annual runaways are not significant for identification of the level of productivity of apple-trees. %K vascular bundles %K leaf %K efficiency %K apple-tree %U http://phytomorphology.org/PDF/MP2/02123124.pdf