Offset formation
Cactus grower terms
The natural, genetically inherent ability to produce daughter stem shoots (offsets) in a number of cactus species, or induced artificially by removal of the stem's growing point.
Glossary of terms
A reference section with categories and short explanations.
Offsets
Cactus grower terms
Lateral shoots of cacti.
Offshoot
Cactus grower terms
A young shoot of a plant arising from the stem or root. Among hobbyists the terms "shoot" or "plantlet" are more commonly used.
Ontogeny (ontogenesis)
Cactus grower terms
Individual development, the entire complex of a plant's life activities and structure, beginning with its origin from a fertilized egg cell, a vegetative bud, or the division of a mother cell, and continuing until the plant's death.
Organic constituents
Cactus grower terms
Complex compounds of the substrate's soil fractions formed as a result of the decomposition of organic substances, for which carbon is an essential element.
Organic matter
Cactus grower terms
A component of soil that is of plant or animal origin.
Osmosis
Cactus grower terms
(From Greek osmos - pressure, push) - the ensemble of physico-chemical processes leading to thermodynamic equilibrium and the equalization of solution concentrations on both sides of a membrane. It is ensured by the slow transfer of low-mo…
Osmotic gradient
Cactus grower terms
Difference in osmotic pressure across a membrane.
Osmotic pressure
Cactus grower terms
Excess external pressure that must be applied to the solution side to stop osmosis — the influx of solvent into it through the semipermeable membrane separating them.
Ovary
Cactus grower terms
The lower, enlarged part of the pistil that contains the ovules.
Own-root plants
Cactus grower terms
Plants that develop on their own roots and do not require grafting.