
Explore the global distribution and diversity of orchids, including 30,000 species and 750 genera, with India hosting 1,300 species in 140 genera and Dendrobium as a leading, widely cultivated genus.
Explore the biology and diversity of Dendrobium orchids, the largest orchid genus with over 1,340 species and thousands of hybrids, native to Southeast Asia and distributed worldwide, easy to cultivate.
Explore the global diversity of dendrobium hybrids and identify popular cultivars such as Sonia 17, Turbine Ekka Pole, and Bangkok Blue across regions worldwide.
Grow Dendrobium orchids in shade houses with cross ventilation and shade cloth to protect from pests. Use benches for aeration and keep heights under two feet six inches.
Choose a level, well-drained site with windbreaks, bright light, air movement, and water near utilities and roads. Dendrobium orchids require bright light, temperatures, and 50–75% humidity with shading and ventilation.
Select media that provides support and healthy root environment with good drainage for dendrobium, using locally available materials, low-salt substrates with proper pH and EC, sterilized by steam or chemicals.
Plant Dendrobium orchids in pots, bags, or garden pots with drainage, using bed spacing and medium bales; position rhizome slightly above media and reduce light after reporting to aid recovery.
Manage dendrobium irrigation in porous media by season, avoid overwatering to prevent root issues, and optimize water quality; also apply nutrients and growth regulators to enhance flowering.
Identify physiological disorders in dendrobium, especially bud blast from stress and ethylene pollution. Manage aphids and scales with sanitation, alcohol treatments, and insecticides like imidacloprid and chlorpyrifos.
Identify and manage mealy bugs, red spider mites, and thrips on dendrobium orchids through cultural management, removal of infested parts, humidity control, and targeted chemical controls with two-week spray intervals.
Identify and manage dendrobium orchid pests—shoot borer, black weevil, grasshoppers, and slugs and snails—using sanitation, manual removal, and chemical controls including chlorpyrifos, neem, metaldehyde, and copper methods.
Identify bacterial soft rot, stem rot, and leaf spot in dendrobium orchids and manage them with sanitation, disease-free planting materials, sterilized potting medium, and sprays like streptomycin and carbendazim.
Identify leaf blight, beetle blight, and fluorescence blight in Dendrobium orchids and apply environmental controls, sanitation, and selective spray treatments to manage fungal and viral diseases.
Explore maturity indices and harvesting of Dendrobium orchids, selecting 4–6 unopened buds at 70–75% bloom, then post-harvest warm water pulsing with 2–6% sucrose for 2–4 hours, cooling, and four-class grading.
Learn grading and post-harvest handling of dendrobium orchids, detailing packaging to prevent movement with water or preservative tubes, and storage at 7–13 C with 90–95% RH and ethylene management.
Value addition for Dendrobium orchids includes coloring, dehydration, processing, and stopping irrigation before harvest, plus pulsing edible dyes to color bouquets, garlands, and orchid jewelry.
This course enables the students to build up their skill in raising Dendrobium Orchids under controlled conditions. In specific, this course initially classifies Orchidacae family and briefly describes the distribution of dendrobium in India. In this course, popular cultivars suited to sub-continental conditions were highlighted along with their salient features. The criteria for selection of suitable site for establishment of Dendrobium was presented in detail. In addition, basic requirements to build a controlled structure, viz. greenhouse structure, cladding material and climatic requirements were also described. Keeping in view the export demand for Dendrobium orchids, in the section three of this course, all the recommended management practices to be followed were described visually. In the last section, this course mainly provided a thumb rule strategy to identify the maturity of Dendrobium orchids and clearly described the most appropriate harvest and post-harvest techniques widely accepted all over the World. Finally, provided different packaging and storage conditions to be maintained to enhance the shelf life of the flowers considering its export potential. Thus, this course provides an overview of entire package of practices that must be adopted to cultivate Dendrobiums scientifically under the controlled conditions, aiming to achieve maximum production as well as profit.