Abstract
More sensitive than Mimosa pudica and more beautiful than any adornment detached from nature by man, the azalea (Azaleeaindica) gathers through its shapes a real symphony of colours and enchanting hues, of elegant shapes, having no rival in the flower world.The azalea can multiply through seeds and vegetatively: seedlings, grafting, layering.The widest reproduction method remains that through semilignified seedlings, a method that can be used throughout the yearavoiding the months less favourable for propagation by seedlings, with poor light: November and October. The best results are given by thespring propagations by seedlings (February-March) and the summer propagations by seedlings (July-August). The rooting can last for 12-14weeks until the seedlings can be transplanted in flower pots without risks.A wide application in horticultural practice is the use of growth substances, that take part in the faster formation of roots and in ahigher percent for species of plants, that, normally, root with difficulty through seedlings. Under this aspect, many synthetical compoundshave proved to be very active (IAA, NAA, IBA, 2,4,5-T acid etc.) (3,4).
Highlights
The ornamental ligneous species can multiply vegetatively through propagation by seedlings, grafting, layering, separation of the bush, propagation by basal shoots
The most often used reproduction method in the case of most species is by seedlings, the material used for this type of reproduction being the seedlings, meaning those portions of the plant that, placed in favourable vegetation conditions according to the principle of restitution, restore organisms that are identical with those of which they were harvested [1,10]
There was some indication that better rooting occurred in cuttings from younger than older ortets [2,6]
Summary
The ornamental ligneous species can multiply vegetatively through propagation by seedlings, grafting, layering, separation of the bush, propagation by basal shoots. The most often used reproduction method in the case of most species is by seedlings, the material used for this type of reproduction being the seedlings, meaning those portions of the plant that, placed in favourable vegetation conditions according to the principle of restitution, restore organisms that are identical with those of which they were harvested [1,10]. Single node cuttings with part of one leaf were tested. In early experiments “first top node” cuttings were much poorer than cuttings which included second or third nodes from the apex, it was too early to conclude how cuttings from lower down on the ortet would perform [12]. There was some indication that better rooting occurred in cuttings from younger than older ortets [2,6]
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