Summary of agricultural doctoral thesis: Studying the growth, development capacities and technical measures to increase yields, qualities of some exotic orchid cultivars (cattleya, dendrobium, oncidium) for Northern Vietnam

The purpose of this research subject is to study the growth, development of some exotic hybrid orchid genera of Cattleya, Dendrobium, Oncidium in order to select new promising hybrid orchid cultivars, consistent with the Northern Delta region and the nearby region with similar ecological conditions.