The influence of biostimulators in the growth of some shrubs
2010
Bandici, Gheorghe-Emil | Ardelean, Ileana | Purcărea, Cornelia
More sensitive than Mimosa pudica and more beautiful than any adornment detached from nature by man, the azalea (Azaleea indica) 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 year avoiding the months less favourable for propagation by seedlings, with poor light: November and October. The best results are given by the spring propagations by seedlings (February-March) and the summer propagations by seedlings (July-August). The rooting can last for 12-14 weeks 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 a higher percent for species of plants, that, normally, root with difficulty through seedlings. Under this aspect, many synthetical compounds have proved to be very active (IAA, NAA, IBA, 2,4,5-T acid etc.) (3,4).
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