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Abstract
High temperature affects various physiological processes of the plant. Delayed sowing and changing climate both subject the crop to increasing temperatures during the crop growth period. There is a need to take on a technique to screen the wide number of genotypes for high-temperature tolerance. In the present study, a screening protocol was followed based on the principle of “acquired tolerance” in which 47 sunflower seedlings were exposed to sub-lethal heat stress to induce tolerance before subjecting to subsequent lethal stress and the second set were directly exposed to lethal stress. Significant variation was observed for the traits - survival percentage, total seedling length, and seedling weight. Tolerant inbreds were identified using Z distribution and PCA. Results suggested that TIR is a rapid and powerful technique that can be used to screen large number of germplasms to identify thermotolerant lines.
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References
- Debaeke, P., Bedoussac, L., Bonnet, C., Bret-Mestries, E., Seassau, C., Gavaland, A., Raffaillac, D., Tribouillois, H., Véricel, G & Justes, E. (2017). Sunflower crop: Environmental-friendly and agroecological. OCL Oilseeds Fats Crops Lipids, 24 (3): 304 DOI: https://doi.org/10.1051/ocl/2017020
- Harihar, S., Srividhya, S., Vijayalakshmi, C., & Boominathan, P. (2014). Temperature induction response technique—a physiological approach to identify thermotolerant genotypes in rice. International Journal of Agricultural Sciences, 10, 230-232.
- Hasanuzzaman, M., Hossain, M.A., da Silva, J.A.T & Fujita, M. (2012). Plant Responses and Tolerance to Abiotic Oxidative Stress: Antioxidant Defenses is a Key Factor. In Crop Stress and Its Management: Perspectives and Strategies; Springer: Berlin, Germany, pp. 261–316. DOI: https://doi.org/10.1007/978-94-007-2220-0_8
- Kheir, E.A., Sheshshayee, M.S., Prasad, T. G. & Udayakumar, M. (2012). Temperature Induction Response as a Screening Technique for Selecting High Temperature-Tolerant Cotton Lines. The Journal of Cotton Science, 16:190–199.
- Moreno, A.A & Orellana, A. (2011). The physiological role of the unfolded protein response in plants. Biological Research. 44, 75–80. DOI: https://doi.org/10.4067/S0716-97602011000100010
- Partheeban, C., Vijayaraghavan, H., Sowmyapriya, S., Srividhya, S & Vijayalakshmi, D. (2017). Temperature induction response and accumulation of starch granules as indices to identify the thermotolerance of pulses at early growth stages. Legume Research. 40: 655-65 DOI: https://doi.org/10.18805/lr.v0i0.8403
- Qadir, G., Hassan, F.U & Malik, M.A. (2007). Growing degree days and yield relationship in sunflower (Helianthus annus L.). International Journal of Agriculture and Biology, 9: 564-568.
- Senthil-Kumar, M., Kumar, G., Srikanthbabu, V & Udayakumar, M. (2007). Assessment of variability in acquired thermotolerance: potential option to study genotypic response and the relevance of stress genes. Journal of Plant Physiology, 164:111-125. DOI: https://doi.org/10.1016/j.jplph.2006.09.009
- Sunflower ACRIP annual report, (2014-2015). p. 8
- Sunflower Statistics (2019). FAOSTAT (Source: http://faostat3.fao.org)
- Vidya, S.M., Laxman, R.H., Bhatt, R.M.; Rekha, A., John Sunoj and Ravishankar K.V. 2017. Temperature induction response technique: a screening tool for evaluation of banana cultivars for thermotolerance. Indian journal of plant physiology, 22 (1): 79-84 DOI: https://doi.org/10.1007/s40502-016-0273-9
- Vijayalakshmi, D., Srividhya, S., Vivitha, P., & Raveendran, M. (2015). Temperature induction response (TIR) as a rapid screening protocol to dissect the genetic variability in acquired thermotolerance in rice and to identify novel donors for high temperature stress tolerance. Indian Journal of Plant Physiology, 20: 368-374. DOI: https://doi.org/10.1007/s40502-015-0192-1
References
Debaeke, P., Bedoussac, L., Bonnet, C., Bret-Mestries, E., Seassau, C., Gavaland, A., Raffaillac, D., Tribouillois, H., Véricel, G & Justes, E. (2017). Sunflower crop: Environmental-friendly and agroecological. OCL Oilseeds Fats Crops Lipids, 24 (3): 304 DOI: https://doi.org/10.1051/ocl/2017020
Harihar, S., Srividhya, S., Vijayalakshmi, C., & Boominathan, P. (2014). Temperature induction response technique—a physiological approach to identify thermotolerant genotypes in rice. International Journal of Agricultural Sciences, 10, 230-232.
Hasanuzzaman, M., Hossain, M.A., da Silva, J.A.T & Fujita, M. (2012). Plant Responses and Tolerance to Abiotic Oxidative Stress: Antioxidant Defenses is a Key Factor. In Crop Stress and Its Management: Perspectives and Strategies; Springer: Berlin, Germany, pp. 261–316. DOI: https://doi.org/10.1007/978-94-007-2220-0_8
Kheir, E.A., Sheshshayee, M.S., Prasad, T. G. & Udayakumar, M. (2012). Temperature Induction Response as a Screening Technique for Selecting High Temperature-Tolerant Cotton Lines. The Journal of Cotton Science, 16:190–199.
Moreno, A.A & Orellana, A. (2011). The physiological role of the unfolded protein response in plants. Biological Research. 44, 75–80. DOI: https://doi.org/10.4067/S0716-97602011000100010
Partheeban, C., Vijayaraghavan, H., Sowmyapriya, S., Srividhya, S & Vijayalakshmi, D. (2017). Temperature induction response and accumulation of starch granules as indices to identify the thermotolerance of pulses at early growth stages. Legume Research. 40: 655-65 DOI: https://doi.org/10.18805/lr.v0i0.8403
Qadir, G., Hassan, F.U & Malik, M.A. (2007). Growing degree days and yield relationship in sunflower (Helianthus annus L.). International Journal of Agriculture and Biology, 9: 564-568.
Senthil-Kumar, M., Kumar, G., Srikanthbabu, V & Udayakumar, M. (2007). Assessment of variability in acquired thermotolerance: potential option to study genotypic response and the relevance of stress genes. Journal of Plant Physiology, 164:111-125. DOI: https://doi.org/10.1016/j.jplph.2006.09.009
Sunflower ACRIP annual report, (2014-2015). p. 8
Sunflower Statistics (2019). FAOSTAT (Source: http://faostat3.fao.org)
Vidya, S.M., Laxman, R.H., Bhatt, R.M.; Rekha, A., John Sunoj and Ravishankar K.V. 2017. Temperature induction response technique: a screening tool for evaluation of banana cultivars for thermotolerance. Indian journal of plant physiology, 22 (1): 79-84 DOI: https://doi.org/10.1007/s40502-016-0273-9
Vijayalakshmi, D., Srividhya, S., Vivitha, P., & Raveendran, M. (2015). Temperature induction response (TIR) as a rapid screening protocol to dissect the genetic variability in acquired thermotolerance in rice and to identify novel donors for high temperature stress tolerance. Indian Journal of Plant Physiology, 20: 368-374. DOI: https://doi.org/10.1007/s40502-015-0192-1