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Santhoshkumar, A. V.
- Impact of Particulate Pollution on Photosynthesis, Transpiration and Plant Water Potential of Teak (Tectona grandis L.)
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PDF Views:97
Authors
Affiliations
1 College of Forestry, Kerala Agricultural University, Vellanikkara, Thrissur 680 656, IN
1 College of Forestry, Kerala Agricultural University, Vellanikkara, Thrissur 680 656, IN
Source
Current Science, Vol 112, No 06 (2017), Pagination: 1272-1276Abstract
The study on teak Tectona grandis L. under particulate pollution stress caused by deposition of cement dust revealed that various physiological functions were hampered due to these pollutants. The dust accumulation was highest during summer (0.299 mg/sq. cm) in the polluted plot in comparison to control plot (0.037 mg/sq. cm). The effects of particulate pollution on T. grandis also varied with season, with a general trend of particulate pollutants having maximum effect on vegetation during summer and least during monsoon. The rate of photosynthesis was halved due to particulate pollutant deposition. Particulate pollution decreased the water potential of T. grandis during summer. The rate of transpiration in particulate pollution-affected trees was highly erratic, being the highest during monsoon and least during summer in comparison to those not exposed to pollution. All these induced morphological changes such as reduced height, girth, etc. and also reduced the effective growing days by shedding leaves in the trees exposed to particulate pollution. Leaf area index, which is an indicator of plant productivity, was almost half in pollution-affected trees than control trees. T. grandis can serve as an effective barrier in controlling the spread of pollutants. However, it is ineffective during summer, due the deciduous nature.Keywords
Leaf Area Measurements, Particulate Pollution, Photosynthesis, Teak, Transpiration.Full Text
References
- Prasad, D. and Choudhury, Effects of air pollution. In Environmental Pollution: Air Environmental Pollution and Hazards Series (ed. Misra, S. G.), Venus Publishing House, New Delhi, 1992, pp. 58–60.
- Tiwari, S., Agrawal, M. and Marshall, F. M., Evaluation of ambient air pollution impact on carrot plants at a suburban site using open top chambers. Environ. Monit. Assess., 2006, 119, 15–30.
- Raajasubramanian, D., Sundaramoorthy, P., Baskaran, L., Ganesh, K. S., Chidambaram, A. L. A. and Jeganathan, M., Cement dust pollution on growth and yield attributes of groundnut (Arachis hypogaea L.). Int. Multidiscip. Res. J., 2011, 1(1), 31–36.
- Zunckel, M., Robertson, L., Tyson, P. D. and Rodhe, H., Modelled transport and deposition of sulphur over southern Africa. Atmos. Environ., 2000, 34, 2797–2808.
- Prusty, B. A. K., Mishra, P. C. and Azeez, P. A., Dust accumulation and leaf pigment content in vegetation near the national highway at Sambalpur, Orissa, India. Ecotoxicol. Environ. Saf., 2005, 60(2), 228–235.
- Klumpp, G., Furlan, C. M. and Domingos, M., Response of stress indicators and growth parameters of Tibouchina pulchra Cogn. exposed to air and soil pollution near the industrial complex of Cubatão, Brazil. Sci. Total Environ., 2000, 246, 79–91.
- McLaughlin, S. B., McConathy, R. K., Duvick, D. and Mann, L. K., Effects of chronic air pollution stress on photosynthesis, carbon allocation, and growth of white pine trees. For. Sci., 1982, 28(11), 60–70.
- Chaturvedi, R. K., Prasad, S., Rana, S. Obaidullah, S. M., Pandey, V. and Singh, H., Effect of dust load on the leaf attributes of the tree species growing along the roadside. Environ. Monit. Assess., 2012, 185(1), 383–391.
- Shrivastava, N. G. and Sharma, C. S., Phytoremediation of particulate matter from ambient environment through dust capturing plant species. Central Pollution Control Board, Delhi, 2007, p. 123.
- Sazonova, T. A. and Olchev, A. V., The response of coniferous trees to industrial pollution in northwestern Russia. Open Geogr. J., 2010, 3, 125–130.
- Berry, F. and Bjorkman, M. B., Photosynthetic adaptation to temperature. General features of photosynthetic carbon assimilation versus temperature. In Plant Ecophysiology, Lecture Topics 6, 1980; http://ib.berkeley.edu/courses/ib151/IB151Lecture6.pdf; accessed on 5 June 2013.
- Mandre, M., Ots, K., Rauch, J. and Tuulmets, L., Impacts of air pollution emitted from the cement industry on forest bioproduction. Oil Shale, 1998, 15, 353–364.
- Sirohi, A. and Singh, D., Effect of environmental pollution on the morphology and leaf epidermis of Rumes dentalus L. Geiobios, 1991, 18, 2–3.
- Nanos, G. D. and Ilias, I. F., Effects of inert dust on olive (Olea europaea L.) leaf physiological parameters. Environ. Sci. Pollut. Res. Int., 2007, 14, 212–214.
- Kamalakar, J. A., Response of plant to auto exhaust pollution. Acta Bot. Indica, 1992, 20, 84–88.
- Taylor, G. and Davies, W. J., Root growth of Fagus sylvatica: impact of air quality and drought at a site in southern Britain. New Phytol., 1990, 166, 457–464.
- Hirano, T., Kiyota, M. and Aiga, I., Physical effects of dust on leaf physiology of cucumber and kidney bean plants. Environ. Pollut., 1994, 89, 255–261.
- Scheffer, F., Prezmeck, E. and Wilms, W., Investigations on the influence of cement kiln flue dust on soil and plants. Staub, 1961, 21, 251–254.
- Abdulrahaman, A. A. and Oladele, F. A., Stomatal features and humidification potentials of Borassus aethiopum, Oreodoxa regia and Cocos nucifera. Afr. J. Plant Sci., 2009, 3(4), 59–63.
- Saha, D. C. and Padhy, P. K., Effect of particulate pollution on rate of transpiration in Shorea robusta at Lalpahari forest. Trees, 2012, 26, 1215–1223.
- Wang, H., Ouyang, Z., Chen, W., Wang, X., Zheng, H. and Ren, Y., Water, heat, and airborne pollutants effects on transpiration of urban trees. Environ. Pollut., 2011, 159, 2127–2137.
- Anatomy and Functional Status of Haustoria in Field Grown Sandalwood Tree (Santalum album L.)
Abstract Views :213 |
PDF Views:83
Authors
Affiliations
1 College of Forestry, Kerala Agricultural University, Vellanikkara, Thrissur 680 656, IN
2 College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur 680 656, IN
1 College of Forestry, Kerala Agricultural University, Vellanikkara, Thrissur 680 656, IN
2 College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur 680 656, IN
Source
Current Science, Vol 113, No 01 (2017), Pagination: 130-133Abstract
A study on the physiology of ischolar_main parasitism in sandal (Santalum album L.) was conducted by comparing a six-year-old sandal grown alone and along with a host (Casuarina equisetifolia). Although maximum haustorial connections were observed when grown along with the host, sandal formed haustorial connections with plants including grass up to a distance of 3 m. Anatomical studies on haustoria indicated a vascular connectivity between the host and sandal. While the haustoria functioned as a physiological unit supporting nutritional requirements of sandal, direct lumen-lumen xylem connections between sandal and host were absent. Functional status of the haustorial connection was studied by radio-labelling the host (Casuarina) and nearby grass with phosphorus (32P). Presence of translocated 32P in sandal was noticed after six hours of labelling the host. 32P activity was noticed from eight days up to 16 days after which then it started decreasing. Study with multiple hosts revealed that the extent of translocation from hosts to sandal varied from 28.9% (coconut + Casuarina + rubber as host) to 78.5% (Casuarina + rubber as hosts). Reverse translocation of 32P from sandal to host was also observed. The study concludes that it is not necessary to plant the host along with the sandal as it is practiced presently.Keywords
Haustoria, Radio Tracer, Root Parasitism, Sandal.Full Text
References
- Gairola, S., Aggarwal, P. S. and Ravikumar, G. S., Status of production and marketing of sandalwood (Santalum album L.). In Proceedings of National Seminar on Conservation, Improvement, Cultivation and Mnagement of Sandal (eds Gairola et al.), Institute of Wood Science and Technology, Bangalore, 2008, pp. 1–8.
- Dutt, S. and Verma, K. S., Effect of collection of time, pre-sowing treatments and sowing time on the germinability of sandal (Santalum album L.) seeds under nursery conditions. J. Non-Timber For. Prod., 2005, 12(4), 205–208.
- Rao, N. M., Padmini, S., Ganeshaiah, K. N. and Uma Shankar, R., Sandal genetic resources of South India: threats and conservation approaches. In National Symposium on Role of Plant Tissue Culture in Biodiversity Conservation and Economic Development, KosiKatarmal, Alomora, UP, 1999, p. 63.
- Surendran, C., Parthiban, K. L., Bhuvaneshwaram, C. and Murugesh, M., Silvicultural strategies for augmentation of sandal regeneration. In Proceedings of the ACIAR Conference on Sandal at Institute of Wood Science and Technology, Bangalore, 1998.
- Annapurna, D., Rathore, T. S. and Joshi, G., Modern nursery practices in the production of quality seedlings of Indian sandalwood (Santalum album L.) – stage of host requirement and screening of primary host species. J. Sustainable For., 2006, 22, 33–55.
- Fineran, B. A., Ultrastructure of graniferous tracheary elements in the terrestrial mistletoe Nuytsia floribunda (Loranthaceae). Protoplasma, 1983, 116, 57–64.
- Niranjana, R. and Shivamurthy, G. R., Graniferous tracheary elements in the haustorium of Osyris arborea Wall (Santalacea). Ann. Bot., 1987, 59, 237–243.
- Singh, S. H., Influence of host, light and mineral nutrition on the growth of sandal seedlings (Santalum album L.). M.Sc. thesis, Kerala Agricultural University, Kerala, 2008, p. 234.