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Ceylon Rosewood

Ceylon Rosewood (AlbiziaOdoratissima)

Albiziaodoratissima commonly known as Ceylon Rose Wood or Black Siris is a multipurpose nitrogen fixing tree species belonging to the Leguminosae family.

The plant is native to the humid tropical parts such as India, Bangladesh, China, Myanmar and Sri Lanka. It is a large erect tree and attains a height of 22–26 m and diameter of 120–150 cm.

The timber of Albiziaodoratissima is hard, heavy and strong. Its heartwood is brown with lighter and darker streaks. The wood could be used for making cabinet, high-class heavy furniture, agricultural implements, carts and paneling.

Albiziaodoratissima produces valuable fuelwood, dead and defective branches from shade trees are a major source of fuel.

The tree utilizes the subsoil moisture and nutrients not available to plants and protects them from hail and rainstorms.

It is highly valued for shade and soil improvement in tea plantations of the Asian subcontinent.

Albiziaodoratissima is one of the preferred native species for plantation programs because of its greater adaptability to sites.

Tissue Culture Technology

Albiziaodoratissima is commonly propagated through seeds. However, the seeds are frequently infested by bruchids. The larvae of Bruchidiusbilineatopygus cause heavy damage to developing pods and seeds. Besides, wild stand seedlings are highly variable in terms of growth and biomass production. More uniform, healthy and vigorously growing planting stock of A. odoratissima that can benefit agroforestry systems can be obtained from vegetatively propagated superior trees.

Micropropagation technique could be used as a complimentary approach for rapidly establishing a clonal orchard from selected trees or control pollinated seeds from which further propagules will be produced by rooted cuttings.

In addition, tissue culture technique could be a viable alternative to conventional vegetative propagation methods for mass multiplication, tree improvement programs on superior canopy characteristics and resistance to pests and diseases (Hossain, 1997).

Soil: It grows well in well drained loam, mild saline, lateritioc and black cotton soils.

Temperature: The optimum growth comes at 25 – 40 oC. It requires rainfall of 640 – 3000 mm

Spacing: Recommended spacing varies from 6 x 6 to 12 x 12 m. 300 to 600 plants can be accommodated.

Fertigation: They should be fertilized during planting. Recommended fertilization rates per plant are 10 kgs of Vermicompost, 200 g TSP, 2.5 kg wood ash and 1 kg slaked lime. For trees under 2.5 m height broadcast 300 grams TSP in a 1.5 m, up to 4 m height 333 grams TSP is applied to a 3 m diameter-circle around the tree. Fertilization should be repeated 3 times per year; April, June and August. On good sites 5-year-old trees can be 5 m in height and 14 cm in diameter. A mean annual diameter increment of 1.3 cm has been recorded for this species. A. odoratissima is classified as moderately light demanding. Juvenile trees require shade. Trees coppice well, shoots reaching a height of 3 m in 2 years. It is susceptible to fire, resistant to weed competition, drought and regenerates naturally in sheltered areas with good soil.

Harvesting: Our tissue culture plants can be harvested after 10 -12 of planting.

Yield: Approximately 160 to 170 tons/ha

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