What are the flower propagation methods? Introduction to common propagation methods

Flower propagation methods can be divided into four categories: sexual propagation, asexual propagation, parthenogenetic propagation and tissue culture propagation. Sexual propagation, also called seed propagation, is the formation of seeds through the action of the male and female organs of the flower, that is, the combination of pollen and ovules, and the use of these seeds to propagate offspring.

Seedlings produced from seeds have a strong root system, which is favorable for the absorption of water and nutrients; they grow robustly, have a long lifespan, and have a relatively strong ability to adapt to adverse environments. In natural crossbreeding between varieties, variations are also likely to occur and produce new varieties, so it is often used for herbaceous flowers. Woody flowers are rarely propagated by seed, mainly because sexual propagation flowers late and in most cases cannot maintain the excellent characteristics of the mother plant.

Asexual propagation is also called vegetative propagation. It is a method of using the vegetative organs of flowers, roots and stems, to cultivate new plants. The commonly used methods of asexual propagation include division, cutting, layering and grafting. Its advantages are that plants form quickly and bloom early, and it can maintain the excellent traits of the mother plant. However, no main root is formed, and the root system is distributed relatively shallowly in the soil.

Parthenogenetic propagation: Fern flowers have no bisexual reproductive organs. In addition to frequently using the division propagation method, their spores produced on the back of the leaves can also be used for parthenogenetic propagation.

Tissue culture propagation is the use of flower tissues or cells inoculated under sterile conditions onto a certain culture medium, and after cultivation and induced differentiation, regenerated into independent plants. The new plants obtained carry all the genetic information of the mother plant. This is because plant cells have a kind of "totipotency" in physiological and developmental terms. The tissue culture method obtains offspring through the propagation of plant somatic cells, and like cutting propagation, it does not use fertilized sex cells for propagation.

What types of flower propagation are there?

Flowers

The types of flower propagation are:

① Sexual propagation. Also called seed propagation, that is, using seeds for sowing and raising seedlings.

② Asexual propagation. Also called vegetative propagation, it is the use of the vegetative body of flower plants, that is, a certain part of roots, stems, leaves or buds, for propagation to obtain new plants (such as division, cutting, layering, grafting, etc.).

③ Spore propagation. Also called parthenogenetic propagation, it is limited to the propagation of ferns.

④ Tissue culture propagation. Also called micropropagation, a certain part of the cells, tissues or organs of the flower plant body is inoculated under sterile conditions onto a certain culture medium, thereby obtaining new plants.

What forms of flower propagation are there?

Flower propagation is divided into two types: sexual propagation and asexual propagation.

Sexual propagation: that is, seed propagation, the method of raising plants by sowing seeds. Most annual and biennial herbaceous flowers are propagated by this method. The sowing time is: annual herbaceous flowers in spring from March to April; biennial herbaceous flowers in the previous autumn from August to October. The sowing methods include broadcast sowing, row sowing and dibble sowing.

Asexual propagation: that is, vegetative propagation. It is the use of the roots, stems, leaves and other vegetative organs of flowers, through artificial cultivation, to form independent new plants. Asexual propagation can maintain the excellent characteristics of the mother plant and advance and shorten the time for the plant to take shape and to bloom and bear fruit. Among flowers, the vast majority of woody types use asexual propagation methods to propagate flower seedlings. Asexual propagation can be divided into four forms: division propagation, cutting propagation, layering propagation and grafting propagation.