PATTERN OF HEMP PLANT GROWTH IN DIFFERENT PHENOPHASES, IN RELATION TO SEXUAL PHENOTYPE

In this study, the principal objective was to decipher the genotype – phenotype relationship by identifying the existence of some differences in the behaviour of some morphometric features like height and diameter of hemp plants, as well the slenderness ratio, in different stages of their growth, depending on sexual phenotype, during three successive years. Generally, the differences between male, female and monoecious plants were absent in early ontogeny. The length growth of hemp plants was subjected in a more marked manner to environmental influence comparatively to plant stem diameter. The differences appeared in every year can be considered as being due principally to genotype expression, because of the fact that plants of different provenances have been maintained in identical environmental conditions.