Multiplication of Eucalyptus Variety “Urophylla U6” by Hydroponic Technology
Nguyễn Thị Lý Anh
Abstract
Non circulating hydroponic system developed by AVRDC (Asian Vegetable Research and Development Centre) was examined for the purpose of propagation of eucalyptus cv. Urophylla U6 using apical cuttings. The apical cuttings were placed in hydroponic culture in three nutrient solutions in autumn, winter and spring - summer seasons. It was found that optimal nutrient solution is MWP with EC = 905ms and autumn and spring - summer are suitable seasons for eucalyptus vegetative propagation via hydroponic technique. 20 days old plantlets after rooting in culture medium are best for transferring to nursery. Also, plantings materials derived from hydroponic technique exhibited better growth and higher survival rate than in vitro derived plantlets. It was suggested that hydroponic technology can be applied for propagation of eucalyptus with high multiplication rate and high quality plantlets
