Effect of controlled irrigation on physiological and biometric characteristics in teak (Tectona grandis) seedlings
Автор: Sneha C., Santhoshkumar A.V., Sunil K.M.
Журнал: Журнал стресс-физиологии и биохимии @jspb
Статья в выпуске: 3 т.8, 2012 года.
Бесплатный доступ
Effect of controlled irrigation in physiological and biometric characteristics in teak seedlings is monitored at Forestry College in Kerala, India. Six month old seedlings of Teak (Tectona grandis L. f.) were raised in polybags. Irrigation was done once in a week. Daily evapotranspiration was calculated and treatments IW/ET=1, IW/ET=0.6, IW/ET=0.3 were irrigated with 100, 60 and 30 per cent of cumulative evapotranspiration. A control without irrigation (IW/ET=0) was also maintained. Physiological as well as biometric observations were carried out at regular intervals. Canopy air temperature difference (CATD) was measured using a hand held infrared thermometer and it was observed that seedlings from well watered treatments (IW/ET=1 and 0.6) showed negative CATD whereas treatments IW/ET=0.3 and IW/ET=0 showed positive CATD throughout the growing period. Seedlings in the treatment IW/ET= 0 and 0.3 showed a significant reduction in relative chlorophyll content, seedling height, collar diameter, number of leaves, total dry weight and relative growth rate whereas in IW/ET=1 and 0.6 these parameters were higher and there was no significant difference observed between these two well watered treatment. In the case of root shoot length ratio and root shoot biomass ratio IW/ET=0 was superior over other three treatments.
Water stress, tectona grandis, physiological characteristics, biometric characteristics
Короткий адрес: https://sciup.org/14323663
IDR: 14323663
Список литературы Effect of controlled irrigation on physiological and biometric characteristics in teak (Tectona grandis) seedlings
- Allen, R.G., Pereira, L.S., Raes, D. and Smith, M. (1998) Crop evapotranspiration. FAO Irrigation and Drainage Paper 56. FAO, Rome, 299p.
- Anjum, F., Yaseen, M., Rasul, E., Wahid, A., and Anjum, S. (2003) Water stress in barley (Hordeum vulgare L.). I. Effect on morphological characters. Pakistan J. Agric. Sci., 40: 43-44.
- Bahuguna, V.K. and Lal, P. (1992) Standardization of nursery techniques of Acacia auriculiformis A. Cum Ex Benth under North Indian mist climatic conditions. Part-1. Method of seed sowing and irrigation schedule. Indian For., 118 (9): 616-622.
- Beltrano, J. and Ronco, M.G. (2008) Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: Effect on growth and cell membrane stability. Brazilian J. Plant Physiol., 20: 29-37.
- Bhatt, R.M. and Rao, N.K.S. (2005) Influence of pod load response of okra to water stress. Indian J. Plant Physiol., 10: 54-59.
- Burgess, S.S.O., Adams, M.A., Turner, N.C., White, D.A., and Ong, C.K. (2001) Tree roots: conduits for deep recharge of soil water. Oecologia, 126: 158-165.
- Ceulemans, R.J., Pontailler, F.M., and Guittet, J. (1993) Leaf allometry in young poplar stands: reliability of leaf area index estimation, site and clone effects. Biomass Bioenerg., 4: 769-776.
- Duan, B., Lu, Y., Yin, C., Junttila, O., and Li, C. (2005) Physiological responses to drought and shade in two contrasting Picea asperata populations. Physiol. Plant., 124: 476-484.
- Fischer, G., Shah, M., Velthuizen, H., and Nachtergaele, F.O. (2001) Global agro‐ecological assessment for agriculture in the 21st century. IIASA and FAO, Laxenburg, Austria.
- James, S.A. and Bell, D.T. (2000) Leaf orientation, light interception and stomatal conductance of Eucalyptus globulus ssp. Globulus leaves. Tree Physiol., 20: 815-823.
- Kozlowski, T.T. (ed.). 1968. Water Deficits and Plant Growth, Vol. I. Academic Press, New York, 336p.
- Kozlowski, T.T., Kramer, P.J., and Pallardy, S.G. (1991) The Physiological Ecology of Woody Plants. Academic Press, USA, 657p.
- Kusaka, M., Ohta, M. and Fujimura, T. (2005) Contribution of inorganic components to osmotic adjustment and leaf folding for drought tolerance in pearl millet. Physiol. Plant., 125: 474-489.
- Manes, F., Donato, E., and Vitale, M. (2001) Physiological response of Pinus halepensis needles under ozone and water stress conditions. Physiol. Plant., 113: 249-257.
- Nikolaeva, M.K., Maevskaya, S.N., Shugaev, A.G., and Bukhov, N.G. (2010) Effect of drought on chlorophyll content and antioxidant enzyme activities in leaves of three wheat cultivars varying in productivity. Russian J. Plant Physiol., 57: 87-95.
- Shao, H.B., Chu, L.Y. Shao, M.A., Jaleel C.A., and Hong-Mei, M. (2008) Higher plant antioxidants and redox signaling under environmental stresses. Comptes Rendus Soc. de Biol., 331: 433-441.
- Souch, C.A. and Stephens, W. (1998) Growth, productivity and water use in three hybrid poplar clones. Tree Physiol., 18: 829-835.
- Taiz, L. and Zeiger, E. (eds.). (2006) Plant Physiology. Sinauer Associates, Inc., USA, 764p.
- White, D.A., Beadle, C.L., and Worledge, D. (2000) Control of transpiration in an irrigated Eucalyptus globulus Labill. plantation. Plant Cell Environ., 23: 123-134.
- Yanbao, L., Chunying, Y., and Chunyang, L. (2006) Differences in some morphological, physiological and biochemical responses to drought stress in two contrasting populations of Populus przewalski. Physiol. Plant., 127: 182-191.
- Zhu, J.K. (2002) Salt and drought stress signal transduction in plants. Ann. Rev. Plant Biol., 53: 247-273.
