Productivity, uniformity and sustainability are the three important characters of the clonally propagated plants. With the increased use of clonal technology, the scarcity of wood products evidently decreased which has also led to reduced pressure on natural forests and ecosystem. However, the success of clonal technology rests on wise selection and deployment of suitable clones by studying the inter-population genetic diversity. The present study was conducted in a clonal seed orchard (CSO) of teak (Tectona grandis Linn. F.) comprising of 13 different clones to estimate the inter-clonal variation in terms of growth performance and genetic variability at 32 and 33 years of age. Clone ORANP2 exhibited maximum DBH (26.61cm), height (23.69 m), and stem volume (235.40 m3ha-1) with MAI of 7.133 m3ha-1year-1. The highest CAI of DBH (1.08 cm) and volume (18.558m3/ha) was reported in ORANP5 and ORANR3, respectively. The study found that clone ORANP2 is a superior genotype and thus can be recommended for vegetative multiplication and ex-situ mass planting in reforestation programmes. Both heritability and genetic advance values were low for all the plant traits studied (DBH, height and stem volume) indicating that these traits are of less use for a tree breeder for furthering the selection and breeding process on teak or other tropical hardwood species across globe.
Clone, Ex-Situ, Genotype, Heritability, Tectona grandis
Bhat K. (2003). Quality concerns of sustainable teakwood chain. Paper presented at the ITTO/Kerala Forest Research Institute International Conference on Quality Timber Products of Teak from Sustainable Forest Management, 2-5 December 2003, Peechi, India.
Brandis. Dietrich. (1906): "Indian Trees". London. Archibald Constable and Co. Ltd. 767 pp
Chundamnil, Mammen. (1998). Teak Plantations in Nilambur- an economic review. KFRI Research Report, (144): 1-48.
FSI (1996). Volume equations for forests of India, Nepal and Bhutan. Forest Survey of India, Ministry of Environment and Forests, Govt. of India. pp. 249.
International Tropical Timber Organization (ITTO). (2004). The Prospects for plantations of Teak. Tropical Forest Update, 14(1): 8-14.
Keogh, R. (2003). The importance of quality teak in plantations. Paper presented at the ITTO/Kerala Forest Research Institute International Conference on Quality Timber Products of Teak from Sustainable Forest Management, 2-5 December 2003, Peechi, India
Nautiyal, S.; Singh, Uma. And Gurumurti, K. (1991). Rooting response of branch cuttings of Teak as influenced b season and growth hormones. Indian Forester, 117(4): 249-255.
Nicodemus, A.; Vergehese, M.; Nagarajan, B. and Lindgren, D, (2009). Annual Fertility Variation in Clonal Seed Orchards of Teak (Tectona grandis L. F.) and its impact on Seed Crop. Silvae Genetica, 58:1-2.
Palanisamy, K.; Gireesan, K.; Nagarajan, V. and Hegde, M. (2009). Selection and clonal multiplication of superior clones of Teak and preliminary evaluation of clones. Journal of Tropical Forest Science, 21(2): 168–174.
Palanisamy, K.; Krishnamoorthy, M.; Gireesan K. and Rajasekar, S. (2010). Recent trends in Teak improvement in India. Teaknet Bulletin, 3(3): 2-8.
Pandey, D. and Brown, C. (2000). Teak: A global overview Unasylva, 51(201): 3-13.
Rao, P.S.; Venkaiah, K.; Murali, V.; Murti, S.S.N. and Sattar, S.A. (2001). Evaluation of International Teak Provenance Trial plot in North East Andhra Pradesh. Indian-Forester, 127(4): 415-422.
Rao, P.S.; Murali, V,; Venkaiah K. and Murti, S.S.N. (2002). Performance of teak (Tectona grandis Linn.F.) clones of Andhra Pradesh. Indian Forester, 128(12): 1288?1294.
Reddy, M.C. and Madiwalar, S.L. (2014). Productivity Assessment and Economic Analysis of Teak Plantations in Different Agroclimatic zones of Karnataka. Indian Forester, 140 (3): 287-290.
Shukla S., A. Bhargava, A. Chatterjee, J. Sirivastava, N. SIngh, S.P. Singh. (2006). Mineral profile and variability in vegetable amaranth (Amaranthus tricolor). Pl. Foods Hum. Nut., 61, 23-28.
Singh, R.K. and Choudhary, B.D. (1985). Biometrical Methods in Quantitative Genetic Analysis. Kalyani Publishers, New Delhi, p.318.
Sreekanth, P.M. and Balasundaran, M. (2013), Clonal Seed Orchard of Teak (Tectona grandis L.f.): Genetic Diversity Measures Primary Basis for Future Environmental Uncertainty, Tree Genetics and Molecular Breeding 3 (2): 4-11
Zobel B & Talbert J. (1984). Applied Forest Tree Improvement. John Wiley & Sons Inc, New York.
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)