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The key activities of cultivated plant taxonomy relate to classification and naming (nomenclature).The rules associated with naming plants are separate from the methods, principles or purposes of classification, except that the units of classification, the taxa, are placed in a nested hierarchy of ranks – like species within genera, and genera within families. [6]
Non-botanical classifications include houseplants, bedding plants, hedges, plants for cut flowers and foliage plants. The cultivation of ornamental plants comes under floriculture and tree nurseries, which is a major branch of horticulture. [3] Ornamental trailing plant on a trellis (creeping groundsel).
Plant propagation in horticulture is the process by which the number of individual plants is increased. Propagation involves both sexual and asexual methods. [ 16 ] Sexual propagation uses seeds, while asexual propagation involves the division of plants, separation of tubers, corms, and bulbs using techniques such as cutting, layering, grafting.
Grex (horticulture), a taxonomic category for hybrid orchids, defined by parentage rather than by characteristics Polyploid , having extra sets of chromosomes. Polyploidy is a characteristic sometimes used to define a cultivar group.
A horticultural flora, also known as a garden flora, is a plant identification aid structured in the same way as a native plants flora.It serves the same purpose: to facilitate plant identification; however, it only includes plants that are under cultivation as ornamental plants growing within the prescribed climate zone or region.
Plant identification is a determination of the identity of an unknown plant by comparison with previously collected specimens or with the aid of books or identification manuals. The process of identification connects the specimen with a published name. Once a plant specimen has been identified, its name and properties are known.
A plant grown from seeds may have different characteristics from its parents. Some species produce seeds that require special conditions to germinate, such as cold treatment . The seeds of many Australian plants and plants from southern Africa and the American west require smoke or fire to germinate.
Erosion control: Because plant materials (stems, crowns, etc.) can remain in place year-round, topsoil erosion due to wind and rainfall/irrigation is reduced [11]; Water-use efficiency: Because these crops tend to be deeper and more fibrously-rooted than their annual counterparts, they are able to hold onto soil moisture more efficiently, [12] while filtering pollutants (e.g. excess nitrogen ...