Artificial Propagation

Propagation is possible both by direct sowing and by planting seedlings, root suckers and sections of lateral roots. Stump planting of nursery seedlings is favoured, particularly in the west coast. Mature pods are collected from the trees during November-December. For direct sowing it is advisable to break the pods into one seeded parts. It can be stored up to 6 months after sun drying. Seed weight is 18000 seeds/kg. Soaking in cold water for 24 hours before sowing will result in 80 per cent germination. Instead of direct sowing, nursery raised seedling or stumps are also used to raise plantations. Seeds are sown in raised nursery beds during rainy season. Seeds start germinating within one week. The beds are regularly watered and weeded. One year old seedlings are used to prepare stumps. Stumps are prepared by pruning shoots having a diameter of more than 3 cm and roots at a length of 30 cm. Seedlings of 30 cm tall, 3 cm collar diameter, 30-40 leaves, 10-15 cm root length are normally transplanted. Through tissue culture, good planting materials can be produced which was proved by the research work carried at the Kerala Agricultural University, College of Forestry. During initial years, the seedlings should be protected from weeds, cattle and fire.