Abstract
Quadratic relationship between the age of a tea leaf and the net photosynthetic rate (PN) has been found. A progressive increase in PN was recorded for four months. Then the PN slowly declined, yet even seven-month-old tea leaves sustained a low PN. In a tea shoot, the PN increased from the first leaf onwards. Besides the physiological maturity and proximity, photon flux density (PFD) played an important role in reducing the PN. The tea leaf PN was influenced by cultivation procedures which in turn disrupted the quantum of PFD transmitted through the canopy.
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References
Barua, D.N.: Light as a factor in metabolism of tea plant (Camellia sinensis L.).-In: Luckwill, L.C., Cuttings, C.V. (ed.): Physiology of Tree Crops. Pp. 307–322. Academic Press, New York London 1970.
Barua, D.N. (ed.): Science and Practice in Tea Culture.-Tea Research Association, Calcutta 1989.
Boardman, N.K.: Comparative photosynthesis of sun and shade plants.-Annu. Rev. Plant Physiol. 28: 355–377, 1977.
Hadfield, W.: The effect of high temperature on some aspects of physiology and cultivation of tea bush (Camellia sinensis L.) in north east India.-In: Evans, G.C., Bainbride, R., Rackham, O. (ed.): Light as an Ecological Factor. Pp. 447–495. Blackwell Scientific Publications, London 1976.
Lee, D.W., Patel, S.L.: Leaf and canopy optical properties of five winter crops in Maharashtra, India.-Trop. Agr. 64: 329–332, 1987.
Manivel, L.: Physiology of productivity of tea in Northeast India.-In: Proc. Strat. Physiol. Regul. Plant Productivity. Pp. 211–215. ISPP, Bombay 1989.
Manivel, L., Hussain, S.: Photosynthesis in tea. I. Contribution of photosynthates to pluckable shoots by maintenance leaves.-Two Bud 29: 13–16, 1982a.
Manivel, L., Hussain, S.: Photosynthesis in tea. II. Direction of movement of photosynthates.-Two Bud 29: 49–52, 1982b.
Marimuthu, S., Raj Kumar, R., Manivel, L.: Factors affecting partitioning of assimilates in tea.-J. nuclear agr. Biol. 23: 219–223, 1994.
Murthy, M.N.: STATTECH I. Vers.2.0. Statistical Package for Data Analysis.-Applied Statistic Centre, Madras 1989.
Raj Kumar, R., Manivel, L., Marimuthu, S.: Evaluation of clonal characteristics in mature tea.-J. Plantation Crops 21(Suppl.): 241–247, 1993a.
Raj Kumar, R., Venkatesalu, V., Manivel, L.: Clonal variation in carbon dioxide assimilation in tea.-Photosynthetica 29: 609–612, 1993b.
Šesták, Z. (ed.): Photosynthesis during Leaf Development.-Academia, Praha: Dr W. Junk Publ., Dordrecht-Boston Lancaster 1985.
Swaminathan, P., Hudson, J.B., Udayakumar, S., Kandasami, C., Anand. S. (ed.): Guidelines on Tea Culture in South India. 4th Ed.-UPASI Krishi Vigyan Kendra, Coonoor 1990.
Tanton, T.W.: Environmental factors affecting the yield of tea (Camellia sinensis). I. Effects of air temperature.-Exp. Agr. 18: 47–52, 1982a.
Tanton, T.W.: Environmental factors affecting the yield of tea (Camellia sinensis). II. Effects of soil temperature, day length and dry air.-Exp. Agr. 18: 53–63, 1982b.
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Kumar, R.R., Manivel, L. & Marimuthu, S. Longevity and factors influencing photosynthesis in tea leaves. Photosynthetica 35, 41–46 (1998). https://doi.org/10.1023/A:1006809528852
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DOI: https://doi.org/10.1023/A:1006809528852