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Ověření stimulátorů růstu při množení azalek, Rhododendron L.
Čarnogurská, Pavla
8. Experiment pursued stimulators for propagation of Japanese Azaleas. Mother plants of varieties of Japanese Azaleas species 'Oslava' and 'Diamant Alba' were based on three sites : outside, in the coldframe (overshadowed during summer period) and in the greenhouse. 55 pieces of the species 'Oslava' were planted, 19 pieces of the species 'Diamant Alba' were planted in the greenhouse and 35 pieces in the coldframe and outside. During winter time some of the plants got frozen. Simultaneously the experiment was extended in the second vegetation period by new mutation called 'Rubinstern'. The experiment proved the best rooting accomplishments were given by species 'Oslava'. Species 'Diamant Alba' gave quite weak results of rooting caused mainly by low cold resistance. The worst results of rooting were given by the species 'Rubinstern'. The trial confirmed, that the best of the cultivar, from rooting point of view, is mutation 'Oslava'. Cultivar 'Diamant Alba' was showed poor rooting process, because of its lower freeze resistence. The worst results of rooting were given by the species 'Rubinstern'. In the first vegetative period the parent plants from outside of a low growth which is a reason why it's being left without mentioning the quantity. The AS-1 stimulator was used and the experiment was even enhanced to treatment applying IBA and non-stimulating control. The results showed that used IBA, AS -- 1 stimulators and the non -- stimulated control gave very similar results. No statistical difference was found between the first and the second iterancy in 2006. After heaping up some loose soil, the cuttings that had 5 or more roots reached the best fixation. Achieved reproduction yield found at the type termed 'Oslava' proves, that there is a real option of using stimulators for rooting of cuttings in the regular practice of agricultural comp. in Jeseník.
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