Asian Journal of Bio Science

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Efficacy of Polyethylene Glycol (PEG) Induced Drought on Germination Indices and Photosynthetic Pigments of Sweet Corn Var. NSC-901B


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1 Department of Botany, Plant Physiology and Biochemistry Laboratory, Kurukshetra University, Kurukshetra (Haryana), India
     

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Germination of seed is considered as the first and most fundamental stage of a plant life cycle so that, the achievement in growth and yield production also depends on this stage. Drought stress is one of the most important environmental factors that limit the growth, development and production of plants. The influence of drought stress (0, -.6, -1.2 and -1.8 bar) by polyethylene glycol (PEG) 6000 on seed germination indices and photosynthetic pigments in sweet corn was examined under laboratory conditions with triplicates. Results indicated that drought stress significantly reduced germination per cent (76%), radicle length (71%), plumule length (65%), radicle fresh weight (76%), plumule fresh weight (68%), radicle dry weight (78%), plumule dry weight (56%), chlorophyll a (67%), chlorophyll b (75%), total chlorophyll (69%) and carotenoids (72%). Overall, drought stress had a negative effect on all the parameters.

Keywords

Drought Stress, PEG, Photosynthetic Pigments, Seed Germination, Seedling Growth.
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  • Abdul-Baki, A.A. and Anderson, J.D. (1970). Viability and leaching of sugars from germinating barley.Crop Sci., 10 : 31-34.

  • Ahmad, S., Ahmad, R., Ashraf, M.Y., Ashraf, M. and Waraich, E.A. (2009). Sunflower (Helianthus annuus L.) response to drought stress at germination and seedling growth stages. Pak. J. Bot., 41 : 647–654.

  • Arnon, D.I. (1949). Copper enzymes in isolated chloroplasts, polyphenoxidase in Beta vulgaris. Plant Physiol., 24 : 1-15.

  • Ashraf, M. (2010). Inducing drought tolerance in plants: Recent advances. Biotechnology Advances, 28 : 169-183.

  • Farhad, W., Saleem, M.F., Cheema, M.A. and Hammad, H.M. (2009). Effect of poultry manure levels on the productivity of spring maize (Zea mays L.). J. Anim. Plant Sci., 19 : 122-125.

  • Galle, A., Haldimann, P. and Feller, U. (2007). Photosynthetic performance and water relations in young pubescent oak (Quercus pubescens) trees during drought stress and recovery. New Phytol., 174 : 799–810.

  • Gamze, O., Mehmet, D.K. and Mehmet, A. (2005). Effects of salt and drought stresses on germination and seedling growth of pea (Pisum sativum L). Turk. J. Agric., 29 : 237-242.

  • Hadas, A. (1977). Water uptake and germination of leguminous seeds in soils of changing matrix and osmotic water potential. J. Exp. Bot., 28 : 977-985.

  • Hadas, A. (2004). Seedbed Preparation: The soil physical environment of germinating seeds. In: Handbook of seed physiology: Applications to Agriculture, Benech-Arnold R.L., Sanchez R.A. (Eds.). Food Product Press, New York, pp. 480.

  • Holden, M. (1965). Chemistry and bio-chemistry of plant pigments. Goodwin T. W. Ed Academic, New York, U.S.A., pp. 461-488.

  • Keshavarzi, M.H.B. (2012). The effect of drought stress on germination and early growth of Sesamum indicum seedling’s varieties under laboratory conditions. Int. J. A. M. A. D. 4 : 271-275.

  • Krichen, K., Mariem, H.B. and Chaieb, M. (2014). Ecophysiological requirements on seed germination of a Mediterranean perennial grass (Stipa tenacissima L.) under controlled temperatures and water stress. South African J. Bot., 94 : 210-217.

  • Li, F.L., Bao, W.K. and Wu, N. (2011). Morphological, anatomical and physiological responses of Campylotropis polyantha (Franch.) Schindl. seedlings to progressive water stress. Sci. Hort. Amsterdam,127 : 436-443.

  • Liu, H.Y., Li, J.Y., Zhao, Y. and Huang, K.K. (2007). Influence of drought stress on gas exchange and water use efficiency of Salix psammophila growing in five places. Arid Zone Res., 24 (6) : 815-820.

  • Nejad T.S. (2011). Effect of drought stress on shoot/ischolar_main ratio. World Acad. Sci. Eng. Technol., 81 : 598-600.

  • Siahsar, B.A., Ganjali, S. and Allahdoo, M. (2010).Evaluation of drought tolerance indices and their relationship with grain yield of lentil lines in drought-stressed and irrigated environments. Aust. J. Basic Appl. Sci., 4 : 4336 - 4346.

  • Tri-da, G.E., Fang-Gong-Suin, S.O.I, Ping, B.A, Yingyan, L.U. and Guang-sheng, Z.H. (2006). Effect of water stress on the protective enzymes and lipid per oxidation in ischolar_mains and leaves of summer corn. Agric. Sci. China, 5 : 228-291.


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  • Efficacy of Polyethylene Glycol (PEG) Induced Drought on Germination Indices and Photosynthetic Pigments of Sweet Corn Var. NSC-901B

Abstract Views: 291  |  PDF Views: 1

Authors

Suhana Rao
Department of Botany, Plant Physiology and Biochemistry Laboratory, Kurukshetra University, Kurukshetra (Haryana), India
Rameshwar Groach
Department of Botany, Plant Physiology and Biochemistry Laboratory, Kurukshetra University, Kurukshetra (Haryana), India
Sombir Singh
Department of Botany, Plant Physiology and Biochemistry Laboratory, Kurukshetra University, Kurukshetra (Haryana), India
Narender Singh
Department of Botany, Plant Physiology and Biochemistry Laboratory, Kurukshetra University, Kurukshetra (Haryana), India

Abstract


Germination of seed is considered as the first and most fundamental stage of a plant life cycle so that, the achievement in growth and yield production also depends on this stage. Drought stress is one of the most important environmental factors that limit the growth, development and production of plants. The influence of drought stress (0, -.6, -1.2 and -1.8 bar) by polyethylene glycol (PEG) 6000 on seed germination indices and photosynthetic pigments in sweet corn was examined under laboratory conditions with triplicates. Results indicated that drought stress significantly reduced germination per cent (76%), radicle length (71%), plumule length (65%), radicle fresh weight (76%), plumule fresh weight (68%), radicle dry weight (78%), plumule dry weight (56%), chlorophyll a (67%), chlorophyll b (75%), total chlorophyll (69%) and carotenoids (72%). Overall, drought stress had a negative effect on all the parameters.

Keywords


Drought Stress, PEG, Photosynthetic Pigments, Seed Germination, Seedling Growth.

References