Felted pubescence
Термины кактусовода
Dense, matted hairs.
Glossary of terms
A reference section with categories and short explanations.
Forcing of plants
Термины кактусовода
Various methods of accelerating plant development or of bringing them out of dormancy into an active phase of growth.
Forced dormancy
Термины кактусовода
Stagnation.
Fruiting buds
Термины кактусовода
Buds that produce flowers after opening.
Free planting
Термины кактусовода
Planting of plants into a volume of soil that allows the roots to grow unobstructed in all directions.
Family
Термины кактусовода
A taxonomic category that groups related genera that have a common origin.
Fasciation
Термины кактусовода
An abnormal alteration of the natural form of stems and, less frequently, flowers, leading to the appearance of cristate (crested) sections or of the entire plant. The causes of this phenomenon are not sufficiently studied.
Fertility
Термины кактусовода
The ability of a mature organism to produce viable offspring, i.e., to set fruits with seeds that germinate after ripening.
Flavonoids
Термины кактусовода
Phenolic compounds present in higher plants, including pigments that give color to various plant organs (red, yellow, blue, etc.).
Flora
Термины кактусовода
An evolutionarily and historically formed assemblage of plant species inhabiting a particular territory, or a list of plant species occurring in a given territory.
Floral meristem
Термины кактусовода
This is the meristem from which flowers and inflorescences develop. It represents a modified apical meristem (during the transition to the reproductive stage). Shallow depth and a rather marked expansion in width are common histological fe…
Floral tissues
Термины кактусовода
From English floral — relating to the flower, i.e. the entire complex of tissues related to the flower. (Collins English Learner's Dictionary, 1975). This term is not used in Russian botanical literature.
Fusariosis
Термины кактусовода
Fungal disease of cacti.
Fungicides
Термины кактусовода
Substances that kill fungi.
Funiculus
Термины кактусовода
(From Latin funiculus - stalk, cord) - the seed stalk by which the ovule is attached to the wall of the ovary (placenta).
Flowers
Термины кактусовода
These are reproductive organs whose evolutionary origin is unclear. Flowers are usually simply referred to as the organs of sexual reproduction. (Green N., Stout W., Taylor D., Biology, 1996).
Flower
Термины кактусовода
A flower is a modified, shortened shoot [generative], adapted for the formation of micro- and megaspores, gametes, and for cross-pollination. (Khrzhanovsky V., Kraevsky I., Ponomarenko S. Botany, 1975).
Floral tube
Термины кактусовода
(Better: pedicel) - the part of a flower bearing the perianth, often pubescent or covered with scales.
Floral calyx
Термины кактусовода
The outer covering of a flower with a double perianth, consisting of sepals, which may be free or fused together, green or brightly colored.
Flower buds
Термины кактусовода
Buds that contain only flower primordia. In this state they can remain on the stem for a long time and begin to develop only under optimal conditions and at the appropriate time of year, often associated with genetic memory.