Hong Duc University Journal of Science, S. 4 (2017)

Cỡ chữ:  Nhỏ  Vừa  Lớn

NURSERY CONDITIONS FOR ONCIDIUM (SWEET SUGAR) GROWTH AND DEVELOPMENT AT SEEDLING AND ADULT STAGES

Le Hoai Thanh, Le Huu Can

Tóm tắt


Viet Nam is a tropical country with monsoons, which is suitable for growing different kinds of flowers including Oncidium-sweet sugar Orchids. Production of Orchids in Viet Nam has not fully developed, compared with the potentials of this kind of flowers due to a lack of appropriate process of technology to produce Orchids. Research on techniques to grow Oncidium-Sweet Sugar Orchids in the period of seedling and production with a hope of contributing to the development of Orchids in Viet Nam.
Effects of flowerbeds used on living scale and growth of Oncidium-sweet sugar Orchids in the period of seedling after 8 weeks are presented. To sum up, coir is the best condition for growing oncidium in the period of seedling.
Effects of nutrition on one- year- old oncidium sweet sugar Orchids grown in coir beds (after 8 weeks). In this period, using NPK 30-10-10 with the concentration of 1g/l/m 2 and watering once in every three days shows the best result.
Effects of nutrition on the growth and development of oncidium sweet sugar Orchids from 6 to 18 months old (after 8 weeks). In this period, using NPK 20-20-20 with concentration of 1g/l/m 2 gives the best result.
Effects of oncidium bulbs on the appearance of oncidium buds after 9 weeks. Under the same nutrition supply, the oncidium sweet sugar Orchids give the highest scale of bud production when treated for blooming as in R1 (bulb diameter of 2.5-3 centimeters).

Toàn văn: PDF