Native plants
Термины кактусовода
Plants that originated and, in the course of evolution, have continued to inhabit the locality to the present time.
Glossary of terms
A reference section with categories and short explanations.
Autogamy
Термины кактусовода
Self-pollination and self-fertilization in plants.
Self-sterility
Термины кактусовода
Inability of pollen to fertilize the egg cells of its own flower.
Plant adaptation
Термины кактусовода
The totality of structural and physiological characteristics of an organism and plant responses, including genetic changes, that ensure the ability to exist under specific environmental conditions and the resilience required for preservati…
Adventitious roots
Термины кактусовода
"Waiting roots" - root primordia of cacti that form during prolonged absence of water. In a moist environment they can very quickly activate and develop into a normal root system with its characteristic functions.
Adventive plants
Термины кактусовода
"Foreign" to the given locality.
Acclimatization
Термины кактусовода
The adaptation of plants to new, unfamiliar conditions of growth, primarily soil and climatic conditions.
High-mountain plants
Термины кактусовода
Plants of high mountains.
Axil
Термины кактусовода
A depression, the axil between the tubercles of certain genera and species of cacti, from which flowers and shoots develop.
Seed activation
Термины кактусовода
Treatment of seeds before sowing.
Alkaloids
Термины кактусовода
Organic nitrogen-containing substances of predominantly plant origin that exert varying effects on the nervous system of animals and humans.
Allele
Термины кактусовода
(From Greek allelon - one another, mutually) - one of two or more alternative structural states of a gene.
Allogamy
Термины кактусовода
Pollination of a flower by the pollen of another flower, but from the same plant.
Alluvial layers
Термины кактусовода
Sedimentary deposits in the form of alluvial layers, accumulating on land under the influence of flowing water.
Anaerobes
Термины кактусовода
Microorganisms capable of living and growing without access to free oxygen.
Apex
Термины кактусовода
The tip of a stem or root where the apical meristem is located.
Apical
Термины кактусовода
Apical, situated closer to the morphological end of a plant organ.
Distribution area
Термины кактусовода
(Distribution area) (from Latin area - area, space) - part of the Earth's territory within which a given taxon (species, genus, family...) is distributed and completes its full life cycle. May be continuous or fragmented.
Areole
Термины кактусовода
Characteristic organ of members of the cactus family. It is a thinly hairy cushion, a hairy or downy area at the apex of the tubercles (bumps) on cactus ribs, covered with a typical cotton-like pubescence, bearing modified bud scales (spin…
Arid species
Термины кактусовода
Plants of dry and hot climates.
Arid conditions
Термины кактусовода
Dry conditions in which the total annual precipitation does not exceed 250 mm.
Assimilatory surface
Термины кактусовода
The surface of a plant capable of performing the functions of photosynthesis.
Assimilation
Термины кактусовода
The process by which plants take up substances from the external environment and form from them more complex compounds.
Auxins
Термины кактусовода
(From Greek aichapo - I increase, I grow) plant hormones, indole derivatives, stimulate many growth processes, tropisms, root formation.
Autecology
Термины кактусовода
(From Greek autos - 'self' and ecology) - the branch of ecology that studies the effects of various environmental factors on individual populations and species.
Basiphilous plants
Термины кактусовода
Plants that prefer soils with pH 7-9.
Non-chlorophyllous forms
Термины кактусовода
Plants that do not have the green pigment chlorophyll in their cells. Due to the presence of other pigments, their stems (in this case, cacti) are colored in various bright shades of red, orange, yellow and lilac.
Binomial nomenclature
Термины кактусовода
A universally accepted system of names in biology in which each living organism has a genus and species name. For example: genus Mammillaria, species plumosа.
Biological nomenclature
Термины кактусовода
Also known as taxonomy - the generally accepted rules for naming living organisms.
Biological rhythms
Термины кактусовода
Cyclic fluctuations in the intensity and nature of biological processes.
Biology
Термины кактусовода
A comprehensive science of living nature. The subject of study of biology is life in all its manifestations.
Biomass
Термины кактусовода
The amount of living matter of an organism (for example, a species).
Biomorph
Термины кактусовода
The external appearance of plants reflecting their adaptation to environmental conditions and expressed in similarities of morphological characters, structural features, life cycle, etc.
Biotype
Термины кактусовода
A group of individuals of a given species, genetically and ecologically homogeneous.
Biotope
Термины кактусовода
An ecologically homogeneous area of the habitat (niche) of plants.
Bolson
Термины кактусовода
Closed basins in the arid regions of the Americas. The floor is usually flat and filled with sediments, often covered with calcareous hardened crusts.
Botany
Термины кактусовода
The science of plants, their structure, biology, ecology, distribution, and classification.
Buffer capacity
Термины кактусовода
The ability of a solution to maintain a constant pH when an acid or a base is added to it.
Buffer systems
Термины кактусовода
A set of substances dissolved in water that ensures the maintenance of a constant acidity (pH). A characteristic of a buffer system is its buffering capacity.
Variability
Термины кактусовода
Minor morphological differences among individuals of a single species, both within a population and between populations separated from each other by considerable distances.