Clonal Forestry
Dalbergia sissoo

This is one of the commercially important timber species, can be propagated through hardwood cuttings, softwood cuttings and rejunation.

a) Hardwood Cuttings
Cuttings of 15-20 cm long and 10-20 mm thick are generally used for this purpose. Cuttings collected during June – August posses more rooting ability. The cuttings treated with IAA or IBA 100 ppm in dilute water solution by basal dip method for 24 hrs gave profuse rooting (Sunil Puri and Verma, 1996). After treating with the growth hormone, the pecklings are planted either in nursery beds or polythene bags which are filled with sand and soil at 1:1 propotion. Rhizogenesis will take place in 4 to 6 weeks. During summer, regular watering should be done to prevent their desiccation. These do not require any hardening.

b) Softwood Cuttings
Terminal soft wood portions of the actively growing shoots are taken in the months of June – August. They are cut into 4 – 8 cm long leafy cuttings. Except the upper two leaves are excised. It can be planted on the vermiculite or coarse sand medium directly without any auxin treatment. Rooting will occur within 3 weeks. Hardening has to be done before out planting.

c) Rejuvenation
Coppice shoots and root suckers are the good source of juvenile cuttings which can be easily rooted under mist condition.

 

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