Teak plantation
- Thread starter govind29
- Start date
Hi
Plantation Teak is Tectona Grandis the true teak we have seen as furniture and boats. Teak has many trade name such as Burmese teak.
Teak prefers moist, warm tropical climate. It can withstand extremes of temperature, but maximum & minimum shade temperatures of 39- 44 0 c and 13 - 17 0 c respectively are the most favourable for its growth. It grows well in rainfall zone of 1200-2500 mm. It prefers a deep, fertile, well-drained soil. The sandy soil is considered to be the best soil texture for this tree. It fails to grow in the soil with pH below 6.5. The number of plants to be planted by each farmer will depend upon extent of area and type of planting e.g. block or bund planting. The optimum spacing for block planting is 2 x 2 m accommodating 2500 plants per ha. On similar basis, the spacing of plants can be kept at 2 m in rows, in bund plantations. The minimum planting area for block plantation should be 0.2 ha or 500 trees per unit.
Teak fruit /seed bears a thick, hard and fleshy cover of mesocarp. The mesocarp is responsible for inhibition of seed germination. Teak fruits are therefore, subjected to various treatment methods before being sown in the nursery beds to get high germination percentage. Various methods of pre-treatment have been developed and are traditionally in practice; the simplest one being alternate soaking & drying. In pit method, fruit mesocarp is subjected to decay by burying them in pits with cowdung slurry for three weeks. Acid treatment to burn mesocarp is another method. Nowadays a mechanical simple device has been evolved, a prototype-II. It is a simple machine, on the pattern of an ordinary flour-mill, and very easy to handle.
The plants are raised by sowing fruits in the nursery beds. Approximately 2000 - 3000 fruits (1 - 4 seeds per fruit) weigh 1 kg. Fruit treatment by alternate soaking and drying in open bed for 3 weeks hastens germination. Optimum sowing time is from April to May. Germination takes place within 30 - 40 days. Germination percentage varies from 60 - 80 . Irrigation 2 - 3 times a day initially is necessary. Seedlings when 12 - 15 month old with collar diameter of about 2.5 to 4.0 cm. are used for preparation of stumps for planting.
It is advisable to raise nursery seedlings after collecting fruits only from plus trees i.e., phenotypically selected superior trees. In olden days teak fruits used to be collected from any easily available tree, but nowadays with awareness of genetic gain from phenotypic selections, fruits are collected from genetically superior plus trees. Hence fruits should be obtained from Forest Departments / or Forest Development Corporations. For eg., Forest Development Corporation of Maharashtra (FDCM) has established seed orchards where genetically improved quality seeds are produced. Fruits obtained from such seed orchards will give better yield. One must be aware that in case of teak plantations any mistake in selection of planting stock may give a negative impact on the plantation which would be known after 10 years or more. So, selection of planting stock is the most important criterion in raising forestry plantations especially teak.
The highest growth under plantation condition in India was seen in the Indo-Gangetic belt of Haldwani Division. At 20 years of age the height growth was 23.1m and diameter was 28.7 cm. From the general yield table in the first quality teak at 20 years of age, the average diameter is 27.2 cm and average height is 23.2m. The number of trees per acre is 102.
Regards
Ashwini
Plantation Teak is Tectona Grandis the true teak we have seen as furniture and boats. Teak has many trade name such as Burmese teak.
Teak prefers moist, warm tropical climate. It can withstand extremes of temperature, but maximum & minimum shade temperatures of 39- 44 0 c and 13 - 17 0 c respectively are the most favourable for its growth. It grows well in rainfall zone of 1200-2500 mm. It prefers a deep, fertile, well-drained soil. The sandy soil is considered to be the best soil texture for this tree. It fails to grow in the soil with pH below 6.5. The number of plants to be planted by each farmer will depend upon extent of area and type of planting e.g. block or bund planting. The optimum spacing for block planting is 2 x 2 m accommodating 2500 plants per ha. On similar basis, the spacing of plants can be kept at 2 m in rows, in bund plantations. The minimum planting area for block plantation should be 0.2 ha or 500 trees per unit.
Teak fruit /seed bears a thick, hard and fleshy cover of mesocarp. The mesocarp is responsible for inhibition of seed germination. Teak fruits are therefore, subjected to various treatment methods before being sown in the nursery beds to get high germination percentage. Various methods of pre-treatment have been developed and are traditionally in practice; the simplest one being alternate soaking & drying. In pit method, fruit mesocarp is subjected to decay by burying them in pits with cowdung slurry for three weeks. Acid treatment to burn mesocarp is another method. Nowadays a mechanical simple device has been evolved, a prototype-II. It is a simple machine, on the pattern of an ordinary flour-mill, and very easy to handle.
The plants are raised by sowing fruits in the nursery beds. Approximately 2000 - 3000 fruits (1 - 4 seeds per fruit) weigh 1 kg. Fruit treatment by alternate soaking and drying in open bed for 3 weeks hastens germination. Optimum sowing time is from April to May. Germination takes place within 30 - 40 days. Germination percentage varies from 60 - 80 . Irrigation 2 - 3 times a day initially is necessary. Seedlings when 12 - 15 month old with collar diameter of about 2.5 to 4.0 cm. are used for preparation of stumps for planting.
It is advisable to raise nursery seedlings after collecting fruits only from plus trees i.e., phenotypically selected superior trees. In olden days teak fruits used to be collected from any easily available tree, but nowadays with awareness of genetic gain from phenotypic selections, fruits are collected from genetically superior plus trees. Hence fruits should be obtained from Forest Departments / or Forest Development Corporations. For eg., Forest Development Corporation of Maharashtra (FDCM) has established seed orchards where genetically improved quality seeds are produced. Fruits obtained from such seed orchards will give better yield. One must be aware that in case of teak plantations any mistake in selection of planting stock may give a negative impact on the plantation which would be known after 10 years or more. So, selection of planting stock is the most important criterion in raising forestry plantations especially teak.
The highest growth under plantation condition in India was seen in the Indo-Gangetic belt of Haldwani Division. At 20 years of age the height growth was 23.1m and diameter was 28.7 cm. From the general yield table in the first quality teak at 20 years of age, the average diameter is 27.2 cm and average height is 23.2m. The number of trees per acre is 102.
Regards
Ashwini