Variability
Cactus grower terms
Minor morphological differences among individuals of a single species, both within a population and between populations separated from each other by considerable distances.
Glossary of terms
A reference section with categories and short explanations.
Variability
Cactus grower terms
The presence of heterogeneity and differences among individuals of the same species.
Variegated plants
Cactus grower terms
Plants with an abnormal distribution of the green pigment — chlorophyll — in their cells, which leads to the appearance of localized color changes on stems (leaves) in the form of patches of various shapes and sizes.
Variety
Cactus grower terms
A taxonomic unit accepted in botany, referring to a group of individuals of a single species that have stable morphological deviations from the "typical" species, which are of minor importance. It occupies a position between subspecies and…
Vascular bundle
Cactus grower terms
A system of several types of tissues interconnected with one another that perform the function of conducting water and nutrients through the plant, in other words — the assemblage of conductive, mechanical, meristematic, and parenchymatous…
Vegetation
Cactus grower terms
The state of active life of a plant, manifested in the uptake of nutrients, growth, development of generative organs and other components of the annual cycle.
Vegetation
Cactus grower terms
The assemblage of plant communities (phytocoenoses) of the planet or its parts.
Vegetation cycle
Cactus grower terms
Periodically recurring phases of growth, flowering, and fruiting, alternating with stagnation (dormancy).
Vegetation degradation
Cactus grower terms
Gradual deterioration, a decline in the level of organization of a plant community, caused by changes in environmental conditions or by human economic activity.
Vegetation period
Cactus grower terms
The time during which a plant exhibits active life processes from awakening in spring until entering winter dormancy.
Vegetative bud
Cactus grower terms
That produces a vegetative shoot after unfolding.
Vegetative hybridization
Cactus grower terms
Change in hereditary constitution and the creation of new forms by crossing plants of different species.
Vegetative organs
Cactus grower terms
Parts of the body of higher plants (root, stem) that perform the main functions of nutrition, growth and exchange of substances with the external environment. They do not participate directly in sexual reproduction, but can serve as organs…
Vegetative reproduction
Cactus grower terms
Asexual, non-seed reproduction of plants in which a new individual is formed by the rooting or grafting of a part of the parent plant. Parts of the stem, leaves, roots, fruits and even individual cells are used for vegetative reproduction.
Virulent pathogen
Cactus grower terms
A pathogenic microorganism, i.e., a microorganism capable of causing disease.
Vitality
Cactus grower terms
The set of an organism's characteristics that determine its degree of viability.
Vitality
Cactus grower terms
The degree of a plant's resistance to environmental disturbances, the intensity of the organism's life processes, the degree and measure of its resilience.