Saturday, August 13, 2011

Krishna Siris - Albizia amara

Albizia is a genus of about 150 species of mostly fast-growing trees and tropical shrubs and in the subfamily Mimosoideae of the legume family Fabaceae. The genus is pantropical, occurring in Asia, Africa, Madagascar, Central, South, North and South America and Australia, but especially in the tropics of the Old World.  
Some species are considered weeds.

Current name: Albizia amara 
Authority: Boivin 
Family: Fabaceae - Mimosoideae

Albizia amara is a small to medium sized, deciduous tree with smooth, highly branched, dark green, scaly bark. It looks like acacias, but it lacks thorns. The root system is shallow and spreading. The leaves are pinnately compound, 15 to 24 pairs of small leaflets linear, 6-15 pairs of ears. Yellow, fragrant flowers in clusters spherical. They develop when the tree is almost leafless. Flowers pedicellate, yellow, fragrant, 12-20 in the spherical head. Pods are oblong, about 10-28 x 2-5 cm, light brown, puberulous, slender, and flattened seeds sown 6-8, 8-13 x 7-8 mm. The genus is named after Filippo del Albizzi, a noble Florentine in 1749 A. julibrissin introduced into the culture. The specific name Amara is probably the Latin word for 'bitter', though the allusion is not clear.
Natural reproduction by seed is good in areas protected from fire and grazing. It reproduces entirely free of undergrowth, he produced a large number of coppice shoots first, producing as much as 50 to 100 shoots. Artificial, the best method is direct seeding. Seed treatment is immersion in boiling water for 5 minutes followed by soaking for 12 hours. The treated seeds can then be sown and will germinate in 7-10 days. Germination is about 80%.
Spacing generally from 90 to 10 m on along the contour lines, the plants are thinned to 2-3 m high in the first year and 5-8 m in the third or fourth year based on growth rate . The seedlings must be protected against fire and grazing animals. Although natural thinning is universal, the best shooting left a neat punch in any way inferior to that of a strain clarified. On this account, so yields of firewood is likely to be high at the end of the rotation.
Orthodox seeds can be stored up to 2.5 years without significant loss of viability. They are best kept in pots of mud with wood ash or in sealed boxes or burlap bags.
None of the pests that are important reported so far, the larva of Achaea Janata defoliation, and seed pods Bruchus uberatus damage and larvae Bruchus Schroders var. importatus an attack on the seeds.

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