Photoperiodism
Cactus grower terms
Plants' response to the relative lengths of day and night. The primary characteristic is flowering.
Glossary of terms
A reference section with categories and short explanations.
Photoperiodism
Orchid terms
Response of plants to the ratio of light and dark periods of the day.
Photosynthesis
Cactus grower terms
The process by which plants produce organic substances using the energy of sunlight captured by chlorophyll.
Photosynthesis
Special terms
The process of forming carbohydrates in plant cells from carbon dioxide and water using light energy in the presence of chlorophyll.
Photosynthesis
Garden terms
The process of formation in a green plant of organic substances from inorganic ones with the participation of light energy accumulated by chlorophyll (the green pigment of the cell).
Phototropism
Cactus grower terms
Orientation of axial organs (stem, root) to illumination, manifested as directed growth or bending of them toward light (+Ф) or away from light (-Ф).
Phototype
Cactus grower terms
Photograph of the type specimen.
Phylloclades
Special terms
A modified flattened shoot of a leaf-like form, located in the axil of a small membranous leaf (for example, in Asparagus).
Phylogenesis
Cactus grower terms
The process of historical development of both individual species and systematic (taxonomic) groups. Closely related to ontogeny. Depicted as a phylogenetic tree.
Phylogenetic relationships
Cactus grower terms
Relationships between groups of plants that form the basis of categorization.
Physiologically active substances
Cactus grower terms
Organic substances, growth regulators (auxins, etc.).
Phytocenosis
Cactus grower terms
A stable community of plants of one or many generations, uniform within itself but different from neighboring ones.
Phytoncides
Cactus grower terms
Antimicrobial substances of plant origin.
Phytophthora disease
Cactus grower terms
Fungal disease of cacti.
Phytosanitary certificate
African violet terms
Document issued when purchasing planting material from major foreign breeders that guarantees the purchased material is free from pests and diseases; it has a limited period of validity covering the transportation time of cuttings and plan…
Pigment
Cactus grower terms
(From Latin pigmentum - paint) - colored compounds that occur in the tissues of an organism; their color is determined by the selective absorption of sunlight
Pinching
Special terms
Removal of the soft apical tips of shoots with the fingers. This promotes better branching of the plant and bushier growth.
Pinching
Garden terms
Removal of the shoot tip to stop its further growth.
Pine
Language of flowers - meanings
In the language of flowers: hope, pity;
Pineapple
Language of flowers - meanings
In the language of flowers, perfection;
Pinous
Bonsai terms
Linear
Pistil
Cactus grower terms
The female organ of a flower, formed by one or several carpels. Consists of a lower hollow, usually swollen part - the ovary, a slender style, and a stigma of various shapes.
Pistil
Special terms
The central part of the female bisexual flower, containing the ovules from which seeds develop. It consists of the ovary, style and stigma.
Plant adaptation
Cactus grower terms
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…
Plant band
Landscape terms
Flower edging of a garden parterre.
Plant introduction
Landscape terms
Introduction of plants into localities where they were previously absent. A method of enriching our fields, vegetable gardens, botanical gardens and parks with valuable plant species.
Plant morphology
Cactus grower terms
Branch of botany that studies the regularities of structure and the processes of morphogenesis in plants during the life processes of their generations from their origin to the present species (in their ontogeny and phylogeny).
Plant odor
Cactus grower terms
Scorching, discoloration of the stem caused by overheating of the air or by its high dryness.
Plant physiology
Cactus grower terms
A branch of botany that studies the general patterns of the life activities of plant organisms (metabolism, nutrition, growth, reproduction, developmental phases).
Plant reproduction
Cactus grower terms
Reproduction of individuals through the process of propagation.
Plant screen
Landscape terms
A group of trees or shrubs that limits the view of an open space or landscape.
Plant systematics
Cactus grower terms
A branch of botany that develops a natural classification of plants based on the study of the origins and causes of formation of particular taxonomic units, including analysis of their historical development and the establishment of stable…
Plantlet
Orchid terms
Young plant formed on the mother plant without fertilization.
Plastids
Cactus grower terms
(From Greek plastides - creators, formers) - cellular organelles in which synthesis and transformations of substances and energy, etc., take place.
Pleiokotylia
Cactus grower terms
(From Greek pleion - more, and kotyledon - cup-shaped vessel) - the phenomenon of formation in the embryo of more than two cotyledons, multicotyledony (synonym - politilia). Characteristic of gymnosperms.
Plum (flower)
Language of flowers - meanings
In the language of flowers "Keep your promises!"; beauty and longevity;
Podocarpus
Bonsai terms
Podocarpus
Point (spot) mutation
Cactus grower terms
Insertion, deletion, or alteration of one of the nucleotides in a molecule of chromosomal DNA.
Pointed leaf
Language of flowers - meanings
In the language of flowers: family happiness, protection;
Pollinarium
Orchid terms
From Latin pollen, genitive pollinis — fine powder, pollen, a specialized structure adapted for the transfer of large masses of pollen by insects or birds onto the stigma of a flower. It consists of a pollinium, a stalk (caudicle), and a v…