In vitro Rooting of Cloned Paulownia (Paulownia elongata) Plants | IN VITRO ВКОРЕНЯВАНЕ НА КЛОНИРАНИ РАСТЕНИЯ ОТ ПАУЛОВНИЯ (Paulownia elongata)
2011
Zayova, E., Institute of Plant Physiology and Genetics, Sofia (Bulgaria)
The effect of three types of auxins added to full and half strength ¬®S medium /Murashige and Skoog, 1962/ on the rooting of the multiplied plants of P. elongata was studied. alpha-Naphtalene acetic acid /NAA/, Indoleacetic acid /IAA/ and Indole-3-butyric acid /IBA/ in concentrations 0.5 and 1.0 mg/l were used to form roots. The highest percentage of rooting /100%/ and maximum number of roots per plant /5.2/ was recorded on Ёц ¬®S medium supplemented with IBA /0.5 mg/l/. Rooted plants were acclimatized successfully to ex vitro conditions. Among the three substrates tested, the highest survival percentage /100%/ showed the plants grown on a mixture of peat: perlite in a 2: 1 ratio. Plants were transferred in greenhouse. They were characterized by rapid growth and development.
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