морфогенез The morphogenesis ways of leaf explants in certain petunias hybrids in culture Authors: Alatortseva T. A. The morphogenesis peculiarities and the introduction possibility of nine double and nondouble hybrids F1 of Petunia grandiflora in vitro culture were studied. The culture media composition for induction of regeneration processes has been determined. Morphogenetic variability of the organization of structure of the leaf at damage various gaul the inducing organisms Authors: Spivak V. A., Ryabova D. S., Spivak N. A. Investigated features of variability of the structural organization of leaves of wood plants at damage by their gaul the inducing invertebrates.