title: Investigation of populations of herbaceous plants in natural conditions and under cultivation.
abstract: The results of experimental investigations of the morphogenesis of vegetative organs of plants under conditions of cultivation indicated that conclusions about the true composition of populations cannot be drawn from data obtained from descriptions of plants in nature (we have in mind the following characteristics: structure, type and dimensions of shoots, form of leaves, form and dimensions of the root system, etc.). These descriptions make it possible to ascertain only the fact of variability of plants and to characterize specific variance from the norm of reaction to given conditions, which vary for each individual. The true composition of a natural population may be determined by growing plants in an area where there is no competition among them and where all factors are standardized. Only under such conditions is it possible to study the morphogenesis of vegetative organs.
mesh_terms: D009024:Morphogenesis; D063245:Plant Development; D010944:Plants / Q000378:metabolism; D011110:Polymorphism, Genetic; D013045:Species Specificity