plant propagation


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Plant propagation

The deliberate, directed reproduction of plants using plant cells, tissues, or organs. Asexual propagation, also called vegetative propagation, is accomplished by taking cuttings, by grafting or budding, by layering, by division of plants, or by separation of specialized structures such as tubers, rhizomes, or bulbs. This method of propagation is used in agriculture, in scientific research, and in professional and recreational gardening. It has a number of advantages over seed propagation: it retains the genetic constitution of the plant type almost completely; it is faster than seed propagation; it may allow elimination of the nonfruiting, juvenile phase of the plant's life; it preserves unique, especially productive, or esthetically desirable plant forms; and it allows plants with roots well adapted for growth on poor soils to be combined with tops that produce superior fruits, nuts, or other products. See Breeding (plant), Reproduction (plant)

Tissue cultures and protoplast cultures are among the techniques that have been investigated for plant propagation; the success of a specific technique depends on a number of factors. Practical applications of such methods include the clonal propagation of desirable phenotypes and the commercial production of virus-free plants.

Plant tissue cultures are initiated by excising tissue containing nucleated cells and placing it on an enriched sterile culture medium. The response of a plant tissue to a culture medium depends on a number of factors: plant species, source of tissue, chronological age and physiological state of the tissue, ingredients of the culture medium, and physical culturing conditions, such as temperature, photoperiod, and aeration.

Though technically more demanding, successful culture of plant protoplasts involves the same basic principles as plant tissue culture. Empirical methods are used to determine detailed techniques for individual species; such factors as plant species, tissue source, age, culture medium, and physical culture conditions have to be considered. See Plant cell

plant propagation

[′plant ‚präp·ə‚gā·shən]
(botany)
The deliberate, directed reproduction of plants using seeds or spores (sexual propagation), or using vegetative cells, tissues, or organs (asexual reproduction).
References in periodicals archive ?
Elephants are partially responsible for plant propagation and the development of tree diversity on the African savanna.
This is to protect the pili processing industry, which is now confronted with the lack of nut supply and difficulty of plant propagation.
The living shoreline project will provide cuttings for future plant propagation and the next crop of vegetation for installation in the floating treatment wetlands, thus the system is zero waste and self-sustaining.
You can mix it with potting compost for plant propagation, although you might need to sieve some of the chunky bits out.
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8 (BNA): The National Initiative for Agricultural Development (NIAD) has organised a training course entitled " Methods of plant propagation," in cooperation with Agriculture Expert Dr.
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A Family trees B Dialects C The ageing process D Plant propagation QUESTION 15 - for 15 points: Which chemical element is found in all proteins?
in Springfield; Ted Purdy will cover the basics of annual plant propagation and greenhouse management as well as seeding schedules and best varieties for the local area; free; for more information and registration, call 541-343-2822 or email gardens@foodforlanecounty.
The research also emphasises considerations in plant propagation and landscape management.
Backed by a partnership with Hope Seeds, the Agricultural Training Center program not only teaches local Haitian farmers how to grow plants, but will also teach appropriate plant propagation methods, like fruit tree grafting.