Evaluation of cellular thermotolerance and associated heat tolerance in wheat (Triticum aestivum L.)  under late sown condition

DOI: 10.18805/ijare.v49i6.6679    | Article Id: A-4274 | Page : 522-527
Citation :- Evaluation of cellular thermotolerance and associated heat tolerance in wheat (Triticum aestivum L.) under late sown condition .Indian Journal Of Agricultural Research.2015.(49):522-527

Chubasenla Aochen1 and Pravin Prakash*

prakashpbhu@gmail.com
Address :

Department of Plant Physiology, Institute of Agricultural Sciences,
Banaras Hindu University, Varanasi-221 005, India.

Submitted Date : 30-09-2014
Accepted Date : 23-03-2015

Abstract

Fifty wheat genotypes were evaluated at the seedling stage of growth, for genetic variation in cellular thermotolerance by cell membrane thermostability (CMS) and Triphenyl tetrazolium choride (TTC) assays. A subset of eight genotypes was also evaluated at the anthesis stage using the same assays. Large and significant differences existed among wheat genotypes for TTC and CMS at the seedling and anthesis stages. Average thermotolerance declined from seedling to anthesis stage. Thermotolerance was well-correlated between growth stages among the eight genotypes for both CMS (r=0.95; p= 0.01) and TTC (r=0.92; p= 0.01). The correlation between TTC and CMS among the eight genotypes at seedling and anthesis stages was significant (r=0.95; p=0.01 and r=0.93; p= 0.01, respectively). The effect of heat stress on wheat genotypes selected on the basis of TTC and CMS thermotolerance ratings were evaluated. 1000-grain weight, grain filling duration (GFD) and grain filling rate (GFR) reduced under heat stress. The heat susceptibility index (S) revealed K-65 and Yangmai-6 to be susceptible and NW-1014 and DBW-14 to be moderately tolerant to heat stress. GFR and 1000-grain weight were found to have highly significant positive correlation with CMS and TTC ratings at both seedling and anthesis stages.

Keywords

Cellular thermotolerance Grain filling duration Grain filling rate Heat susceptibility index Heat tolerance Wheat.

References

  1. Blum, A. and Ebercon, A. (1981). Cell membrane stability as a measure of drought and heat tolerance in wheat. Crop Sci., 21: 43-47.
  2. Blum, A.; Klueva, N. and Nguyen, H.T. (2001). Wheat cellular thermotolerance is related to yield under heat stress. Euphytica, 117: 117-123.
  3. Chen, H.H.; Shen, Z.Y. and Lee, P.H. (1982). Adaptability of crop plants to high temperature stress. Crop Sci., 22: 719-725.
  4. Fisher, R.A. and Maurer, R. (1978). Drought resistance in spring wheat cultivars. I. Grain yield responses. Aust. J. Agric. Res., 29: 897-907.
  5. Fokar, M.; Henry, T.N. and Blum, A. (1998). Heat tolerance in spring wheat. I. Estimating cellular thermo-tolerance and its heritability. Euphytica,104: 1-8.
  6. Hong, S.W.; Lee, U. and Vierling, E. (2003). Arabidopsis hot mutants define multiple functions required for acclimation to high temperatures. Plant Physiol., 132: 757-767. 
  7. Ibrahim Amir, M.H. and Quick, J.S. (2001). Heritability of heat tolerance in winter and spring wheat. Crop Sci., 41: 1401-1405.
  8. IPCC, (2007). The Synthesis Report of the Intergovernmental Panel on Climate Change, Cambridge Univ. Press, Cambridge, UK.
  9. Joshi, A.K.; Mishra, B.; Chatrath, R.; Ortiz Ferrara, G. and Singh, R.P. (2007). Wheat improvement in India: Present status, emerging challenges and future prospects. Euphytica, 157: 431-446.
  10. Key, J.L.; Lin, C.Y. and Chen, Y.M. (1981). Heat shock proteins of higher plants. Proc. Nat. Acad. Sci., 70: 3526-3530.
  11. Kuo, C.G.; Chen, H.M. and Sun, H.C. (1992). Membrane thermostability and heat tolerance to vegetable leaves. In: C.G. Kuo (ed.), Adaptation of Food Crops to Temperature and Water Stress.. Proc. Intern. Symp., Asian Vegetable Research and Development Centre, Taiwan, pp. 160-168.
  12. Levitt, J. (1980). Responses of Plants to Environmental Stress. Vol. 1. Chilling, Freezing and High Temperature Stress. Academic Press Ltd., New York.
  13. Modarresi, M.; Mohammadi, V.; Zali, A. and Mardi, M. (2010). Response of wheat yield and yield related traits to high temperature. Cereal Res. Comm., 38: 23-31.
  14. Moniruzzaman, A.F.M. (1986). Agronomic constraints of wheat production. In: Proc. on ‘Third National Wheat Training Workshop’. Wheat Research Centre/BARI/CIMMYT/CIDA wheat program, pp. 91-97.
  15. Porter, D.R.; Nguyen, H.T. and Burke, J.J. (1994). Quantifying acquired thermal tolerance in winter wheat. Crop Sci., 34: 1686-1689.
  16. Raison, J.K.; Berry, J.A.; Armond, P.A. and Pike, C.S. (1980). Membrane properties in relation to the adaptation of plants to temperature stress. In: N.C. Turner and P.J. Kramer (eds.), Adaptation of plants to water and high temperature stress. John Wiley & Sons, New York, pp. 261-273.
  17. Thiaw, S. and Hall, A.E. (2004). Germplasm selection for either leaf electrolyte leakage or pod set in enhancing heat tolerance and grain yield of cow pea. Field Crop Res., 86: 239-253.
  18. Viswanathan, C. and Khanna-Chopra, R. (2001). Effect of heat stress on grain growth, starch synthesis and protein synthesis in grains of wheat (Triticum aestivum L.) varieties differing in grain weight stability. J. Agron. Crop Sci., 186: 1-7. 

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