Dendrobium orchid
Botanical Name – Dendrobium sp.
Family -Orchidaceae
Sonia 17, Sonia 28, Emma White, Sakura Pink.
Growing Environment
75% shade net house with 70 – 80% humidity, day temperature of 21 – 29oC and
night temperature of 18 to 21oC is ideal for growing this tropical orchid. In high rainfall zones,
the shade net house should be provided with a rainshelter.
Growing Media
Most common potting mixture consists of charcoal, broken pieces of bricks and tiles,
coconut husk and fiber.
Propagation
Division of clumps, keikis, back bulbs and tissue culture plants.
Containers and support
Perforated earthen pots are ideal and the plants are staked with bamboo sticks.
Irrigation
Mist or overhead sprinkler to provide water and to maintain humidity.
Foliar application of NPK 20:10:10 @ 0.2% at weekly intervals starting from 30 days after planting.
Foliar application of GA3 50 ppm at bimonthly intervals starting from 30 days after planting.
Pests :
Snail and Slug- Hand pick and destroy them immediately.
1) Bacterial soft and Brown rot (Erwinia spp.)
Foliar application with streptomycin sulphate @ 0.5 g + copper oxy chloride @ 2 g/l.
2)( Bacterial Brown spot (Acidovorax sp.)
Foliar application with streptomycin sulphate @ 0.5 g + copper oxy chloride @ 2 g/l.
3)Blackrot (Pythium sp.and Phytopthora sp.)
Foliar application of metalaxyl @ 2 g / l (or) dimethomorph 50% WP @ 0.5 g / l
4) Anthracnose – Foliar application of thiophanate methyl @ 2 g / l or difenoconazole @ 0.5 ml/l
The spike is harvested when 75 per cent of the flowers are open and remaining buds are unopen.
Post harvest handling
Pulsing : 8-HQC 500 ppm + Sucrose 5% for 12 hrs
Holding solution : AgNO3 25 ppm + 8-HQC 400 ppm + Sucrose 5%
Wrapping material : 50 gauge polythene with base of spikes dipped in 8-HQC 25 ppm
8 – 10 spikes/plant/year
