Evaluation of Drought Tolerance in Some Wheat Genotypes Based on Selection Indices

Document Type : Research Article

Authors

University of Tehran

Abstract

Introduction
Wheat is a major crop among cereals and plays a vital role in the national economy of developing countries. Wheat (Triticum aestivum L.) is one of the most important crops in terms of acreage and production rates in the world. This crop has an important role in the food supply. According to the FAO (2010) statistics report, the average wheat yield in Iran was 2136 kg ha-1, while the worldwide average yield was 3009 kg ha-1. Iran, with an average annual rainfall of 250 mm, is located in the world desert belt. Yield loss due to drought stress is likely higher than other stresses. Therefore, introducing plants with high production under both drought stress and non-stress conditions is highly regarded. Stress tolerance indices are used for screening drought tolerant varieties. Tolerance (TOL), mean productivity (MP), stress susceptibility index (SSI), geometric mean productivity (GMP), stress tolerance index (STI) and modified STI (MSTI) have been employed under various conditions. Fischer and Maurer (1978) explained that cultivars with an SSI less than a unit are stress tolerant, since their yield reduction under stress conditions is smaller than the mean yield reduction of all cultivars (Bruckner and Frohberg, 1987). Mean productivity, GMP, harmonic mean (HM) and STI were reported as preferred criteria in selection of drought-tolerant barley genotypes by Baheri et al. (2003). Yield Index (YI) proposed by Gavuzzi et al. (1997), was significantly correlated with stress yield which ranks cultivars on the basis of their yield under stress. The genotypes with a high Yield Stability Index (YSI) are expected to have higher yield under both stress and non-stress conditions (Bouslama and Schapaugh, 1984). Mousavi et al (2008) introduced Stress Susceptibility Percentage Index (SSPI) as a powerful index to select extreme tolerant genotypes with yield stability. Fischer and Wood (1979) suggested that relative drought index (RDI) is a positive index for indicating stress tolerance. Lan (1998) defined a new drought resistance index (DI), which was commonly used to identify genotypes producing higher yield under both stress and non-stress conditions The objectives of this study were to evaluate the performance of different wheat cultivars under normal irrigation and drought stress conditions and to identify the most promising wheat genotypes for drought prone areas.
Materials and Methods
Thirty-nine spring bread wheat genotypes were evaluated under two irrigation regimes, normal and moisture stress at grain filling period for a year. Under normal conditions soil was irrigated up to field capacity, while under stress conditions after the onset of flowering, irrigation was delayed until wilting point took place. The study was conducted at College of Aburaihan, University of Tehran, Iran, in Pakdasht. The experimental design was a randomized complete block design with three replications. Standard cultural practices were applied for all experiments. At harvest, grain yield (t ha-1) was calculated on the basis of plot area.
Results and Discussion
Under normal irrigation, Pishtaz and Azadi (with 8.27 and 7.72 ton ha-1, respectively) and under stress conditions Moghan1 and Sistan (with 5.48 and 4.84 ton ha-1, respectively) had the highest grain yield. Based on regression analysis under normal and stress conditions, three variables entered the model and in normal conditions 70.8 percent and in stress conditions 64 percent of yield changes were explained. Based on grain yield, 15 susceptibility and stress tolerance indices were calculated. Results of correlation, principal component analysis and biplot display showed that GMP, STI, HARM, MP, YI, DI, MSTI and SNPI indices were the best criteria for genotype selection with high yield and stability in stress conditions. Cluster analysis (Ward method) was also used based on indices and grain yield in both normal and stress conditions to classify genotypes in similar classes. Dispersion of genotypes in the biplot, revealed genetic diversity among the genotypes under drought stress.
Conclusions
Results showed that Moghan1, Sistan, Akbari, Bayat, Dez, Spring Roshan-BC, Mahdavi and Tabasi genotypes were identified as tolerant and Tajan, Navid, Shirodi, Zagros, Vee/Nak and Kohdasht genotypes as susceptible genotypes to terminal drought stress. These genotypes can be used for further cross and genetic analysis for drought tolerance through diallel or generation mean analysis designs.

Keywords


1. Abhari, A., Galeshi, S., Latifi, N., and Kalateh, M. 2008. The effect of some growth parameters on grain yield of wheat genotypes yield under drought stress conditions. Journal of Agriculture Science 6: 81-92.
2. Ahmadi, A., Joudi, M., and Janmohammadi, M. 2009. Late defoliation and wheat yield: Little evidence of postanthesis source limitation. Field Crops Research 113: 90-93.
3. Alam, M. S., Rahman, A. H. M., Nesa, M. N., Khan, S. K., and Siddquie, N. A. 2008. Effect of source and/or sink restriction on the grain yield in wheat. Europe Journal Applied Science Research 4 (3): 258-261.
4. Babu, R. C., Zhang, J., Blum, A., Ho, T-HD., Wu, R., and Nguyen, H. T. 2004. HVA1, a LEA gene from barley confers dehydration tolerance in transgenic rice (Oryza sativa L.) via cell membrane protection. Plant Science 166: 855-862.
5. Beltrano, J., and Ronco, M. G. 2008. Improved tolerance of wheat plants (Triticum aestivum L.) to drought stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum: effect on growth and cell membrane stability. Brazilian Journal of Plant Physiology 20: 29-37.
6. Bouslama, M., and Schapaugh, W. T. 1984. Stress tolerance in soybean. Part 1. Evaluation of three screening techniques for heat and drought tolerance. Crop Science 24: 933-937.
7. Braun, H. J., Atlin, G., and Payne, T. 2010. Multilocation testing as a tool to identify plant response to global climate change. In: Reynolds MP, ed. Climate change and crop production. Wallingford, UK: CABI Publishers, 115-13.
8. Chowdhry, M. A., Ali, M., and Subhani, G. M., and Khaliq, I. 2008. Path coefficient analysis for water use efficiency, evapo-transpiration efficiency, transpiration efficiency and some yield related traits in wheat. Pakistan Journal of Biological Sciences 3: 313-317.
9. Emam, Y. 2007. Cereal Production. Shiraz University Press. Third edition. 190 pages. (in Persian).
10. Eskandari, H., and Kazemi, K. 2010. Response of different bread wheat (Triticum aestivum L.) genotypes to post-anthesis water deficit. Notulae Scientia Biologicae 2 (4): 49-52.
11. Farshadfar, E., and Sutka, J. 2002. Screening drought tolerance criteria in maize. Acta Agronomica Hungarica 50 (4): 411-416.
12. Farshadfar, E., Poursiahbidi, M. M., Safavi, S. M. 2013. Assessment of drought tolerance in land races of bread wheat based on resistance/ tolerance indices. International journal of Advanced Biological and Biomedical Research 2: 143-158.
13. Fernandez, G. C. 1992. Effective selection criteria for assessing plant stress tolerance. In: Proceedings of the Symposium of AVRDC, 13-16 Aug. Taiwan.
14. Fischer, R. A., and Maurer, R. 1978. Drought resistance in spring wheat cultivars. I. Grain responses, Australian Journal of Agriculture Research 29: 897-912.
15. Fischer, R. A., and Wood, J. T. 1979. Drought resistance in spring wheat cultivars III Yield association with morpho-physiological traits, Australian Journal of Agriculture Research 30: 1001-1020.
16. Gavuzzi, P., Rizza, F., Palumbo, M., Campaline, R. G., Ricciardi, G. L., and Borghi, B. 1997. Evaluation of field and laboratory predictors of drought and heat tolerance in winter cereals. Canadian Journal of Plant Science 77: 523-531.
17. Golabadi, M., Arzani, A., and Mirmohamadi maibody, S. A. M. 2006. Assessment of drought tolerance in segregation population in durum wheat. African Journal of Agricultural Research 1: 162-171.
18. Heidari sharifabad, H. 2008. Drought mitigation strategies for the agriculture sector. The 10th Iranian congress of Crop Science, 18-20 Aug. 2008, SPII, Karaj, Iran.
19. Knight, C. A., Vogel, H., Kroymann, J., Shumate, A., Witsenboer, H., and Mitchell-Olds, T. 2006. Expression profiling and local adaptation of populations for water use efficiency across a naturally occurring water stress gradient. Moecular Ecology 15: 1229-1237.
20. Lan, J. 1998. Comparison of evaluating methods for agronomic drought resistance in crops. Acta Agriculturae
Bor-occid Sinica 7: 85-87.
21. Majidi, M., Tavakoli, V., Mirlohi, A., and Sabzalian, M. R. 2011. Wild safflower species (Carthamus oxyacanthus Bieb.): A possible source of drought tolerance for arid environments. Australian Journal of Crop Science 5 (8): 1055-1063.
22. Mitra, J. 2001. Genetics and genetic improvement of drought resistance in crop plants. Curr Science 80: 758-762.
23. Moayedi, A. A., Boyce, A. N., and Barakbah, S. S. 2010. The performance of durum and bread wheat genotypes associated with yield and yield component under different water deficit conditions. Australian Journal of Basic and Applied Sciences 4 (1): 106-113.
24. Moghaddam, A., and Hadizade, M. H. 2002. Response of corn (Zea mays L.) hybrids and their parental lines to drought using different stress tolerance indices. Plant Seed Journal 18 (3): 255-272. (in Persian).
25. Mohammadi, R., Armion, M., Kahrizi, D., and Amri, A. 2010. Efficiency of screening techniques for evaluating durum wheat genotypes under mild drought conditions. International Journal of Plant Production 4 (1): 1735-8043.
26. Mohammadi, V., Qannadha, M. R., Zali, A. A., and Yazdi- Samadi, B. 2010. Effect of Post Anthesis Hear Stress on Head Traits of Wheat. T. International Journal of Agriculture & Biology 1: 42-44.
27. Monajjem, S., Mohammadi, V., and Ahmadi, A., 2011. Evaluation of drought stress in some canola cultivars using stress selection indices. Electronic Journal of Plant Production 4: 151-169.
28. Moosavi, S. S., Yazdi Samadi, B., Naghavi, M. R., Zali, A. A., Dashti, H., and Pourshahbazi, A. 2008. Introduction of new indices to identify relative drought tolerance and resistance in wheat genotypes. Desert 12: 165-178.
29. Naeemi, M., Akbari, Gh. A., Shirani Rad, A. H., Modares Sanavi, S. A. M., Sadat Nuri, S. A., and Jabari, H. 2008. Evaluation of drought tolerance in different Canola cultivars based on stress evaluation indices in terminal growth duration. Eelectronic Journal of Crop Production 1 (3): 83-98. (in Persian).
30. Nofouzi, F., Rashidi, V., and Tarinejad, A. R. 2008. Path Analysis of Grain Yield with Its Components in Durum Wheat under Drought Stress. International Meeting on Soil Fertility Land Management and Agroclimatology. Turkey, pp. 681-686.
31. Porch, T. G. 2006. Application of stress indicess for heat tolerance screening of common bean. Journal of Agronomy and Crop Science 192: 390-394.
32. Rebetzke, G. J., Richards, R. A., Condol, A. G., and Farquhar, G. D. 2006. Inheritance of carbon isotope discrimination in bread wheat (Triticum aestivum L.). Euphytica.
33. Richards, R. A., Condol, A. G., and Rebetzke, G. J. 2001. Application of Physiology in wheat breeding. In: M.P. Reynolds, J.U. Ortiz-Monasterio and A. Mcnab (Eds), CIMMYT, Mexico.
34. Rosielle, A. A., and Hamblin, J. 1981. Theoretical aspects of selection for yield in stress and non-stress environments. Crop Science 21 (6): 943-946.
35. Royo, C., Aparicio, N., Blanco, R., and Blanco, D. 2004. Leaf and green area development of durum wheat genotypes grown under Mediterranean conditions. Europe Journal Agronomy 20: 419-430.
36. Saeedpour, S. 2011. Effect of drought at the post-anthesis stage on remobilization of carbon reserves in two wheat cultivars differing in senescence properties. African Journal of Biotechnology 10 (18): 3549-3557.
37. Taghian, A. S., and Abo-Elwafa, A. 2003. Multivariate and RAPD analyses of drought tolerance in spring wheat (Triticum aestivum L.). Assuit Journal of Agricultural Sciences 34: 1-24.
38. Yan, W., and Kang, M. S. 2003. Biplot Analysis: A graphical Tool for Breeders, Geneticists and Agronomist, CRC Press, Boca Raton, FL. 313.
39. Zahravi, M. 2009. Evaluation of Genotypes of Wild Barley (Hordeum spontaneum) Based on Drought Tolerance Indices. Seed and Plant Improvement Journal 25: 533-549. (in Persian).
CAPTCHA Image