Phylogenesis
Термины кактусовода
The process of historical development of both individual species and systematic (taxonomic) groups. Closely related to ontogeny. Depicted as a phylogenetic tree.
Glossary of terms
A reference section with categories and short explanations.
Phylogenetic relationships
Термины кактусовода
Relationships between groups of plants that form the basis of categorization.
Phytoncides
Термины кактусовода
Antimicrobial substances of plant origin.
Phytophthora disease
Термины кактусовода
Fungal disease of cacti.
Phytocenosis
Термины кактусовода
A stable community of plants of one or many generations, uniform within itself but different from neighboring ones.
Photoperiodism
Термины кактусовода
Plants' response to the relative lengths of day and night. The primary characteristic is flowering.
Photosynthesis
Термины кактусовода
The process by which plants produce organic substances using the energy of sunlight captured by chlorophyll.
Phototype
Термины кактусовода
Photograph of the type specimen.
Phototropism
Термины кактусовода
Orientation of axial organs (stem, root) to illumination, manifested as directed growth or bending of them toward light (+Ф) or away from light (-Ф).
Pedicel
Термины кактусовода
A flower stalk bearing a single flower.
Propagation by cuttings
Термины кактусовода
A method of vegetative propagation of plants that involves cutting off a part of the stem followed by rooting.