Volume 7, Issue 2 ((Autumn & Winter) 2021)                   Iranian J. Seed Res. 2021, 7(2): 151-170 | Back to browse issues page

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Aligholizadeh Moghaddam P, Ranjbar G A, Najafi-Zarrini H, Shahbazi H. Effect of Water Stress on Germination and Seedling Characteristics of Some bread Wheat Cultivars (Triticum aestivum). Iranian J. Seed Res.. 2021; 7 (2) :151-170
URL: http://yujs.yu.ac.ir/jisr/article-1-447-en.html
Sari Agricultural Sciences and Natural Resources University , ali.ranjbar@gmail.com
Abstract:   (389 Views)
Extended Abstract
Introduction: Germination is one of the most important stages of plant growth that determines the durability, establishment and final yield of crops and in regions that due to drought conditions the growth of plant encounters with problem, improving germination traits count as one of the important breeding strategies. The present study was designed to determine the effect of different levels of osmotic stress on germination and seedling traits of some bread wheat cultivars cultivated in cold regions of Iran.
Materials and Methods: In order to investigate the effect of different levels of osmotic stress on germination characteristics of bread wheat cultivars cultivated in cold regions of Iran, a factorial experiment was conducted based on a completely randomized design with 3 replications in which, the first factor consisted of 20 bread wheat cultivars (including rain fed cultivars as well as end-of-season water stress tolerant varieties) and the second factor consisted of 3 levels of osmotic stress (non-stress, -3 and -6 bar stress). Seedling traits such as coleoptile length, shoot length, shoot weight, root length, root weight, root / shoot ratio, root growth angle, germination speed and the germination stress index (GSI) were evaluated. For the experiment concerning the yield comparison, 20 cultivars mentioned above were compared under non-stress and terminal drought stress conditions.
Results: The results showed that the ratio of root/shoot length and weight and shoot weight had the highest sensitivity and the lowest number of roots to osmotic stress. Increasing root length as root weight decreased with increasing stress showed that roots became longer and thinner due to stress. Among the genotypes, Saein, Zare, Pishgam, Sadra, Baran and Mihan had desirable traits and CrossMV17, Homa, Orum and Cross Azar2 had no desirable germination traits. In non-stress conditions, 11 genotypes had high coleoptile length including Hashtrood, Azar 2, Saein, CD62-6, CD91-12, Mihan, Baran, Heydari, Homa, Cross Azar 2 and Zare genotypes. At 3 bar stress, 11 genotypes had the highest coleoptile length, with the highest values being assigned to Hashtrood, Heidari and Saein. At 6 bar stress, CD91-12 and CD62-6 lines, Hashtrood, Homa, Pishgam, and Zare had the highest coleoptile length. At 3 bar stress cross Azar 2, Saein, CD62-6, Gascogen and HD2985 demonstrated the highest germination rate. Furthermore, Cross Azar2, HD2985, Gascogen, CD62-6 and Saein led to the best results, respectively. However, in both 3 and 6 bar stress conditions Saein, Cross Azar2, CD62-6 and HD2985 were superior for germination stress index (GSI). For grain yield under normal conditions, Gascogen, Heidari, Pishgam, Orum and Zarrineh had the highest yield and Baran, HD2985, C-88-4, C-9011 and Cross Azar2 were placed next. Under stress conditions Baran, Gascogen, HD2985, Cross Azar2, Heidari and Zarrineh consisted the highest performance. According to STI index Gascogen, Heidari, HD2985 and Zarrineh were the most tolerant genotypes to drought stress. Cluster analysis grouped the studied genotypes into 2 clusters, the first cluster comprising 13 genotypes Heidari, Mihan, HD2985, Baran, Pishgam, Hashtrood, Cross Azar 2, CD62-6, Gascogen, Azar 2, Saein, Sadra and Zare. The second cluster consisted of 7 genotypes C-88-4, Zarineh, C-90-11, Orum, CD91-12, CrossMV17 and Homa. Genotypes of cluster 1 were superior in terms of germination traits such as shoot length, coleoptile length, root length and root weight and reduced root/shoot ratio.
Conclusion: Significant differences in all studied traits among genotypes indicated sufficient genetic variation for selection in germination traits. Results showed that Saein, Zare, Pishgam, Sadra, Baran and Mihan cultivars had desirable germination traits and were superior to other genotypes.

1- The tested genotypes are either newly named or advanced lines and have not been studied for germination traits.
2-The growth angle trait of seed roots through filter paper has received little attention in studies.
Full-Text [PDF 907 kb]   (75 Downloads)    
Type of Study: Research | Subject: Seed Physiology
Received: 2020/03/19 | Accepted: 2020/10/13

1. Abdi, H., Bihamta, M.R., Azizov, E. and Chogan, R. 2015. Investigation effect of drought stress Ievel of PEG 6000 on seed germination principle and its relation with drought tolerance index in promising Lines and cultivares of bread wheat (Triticum. aestivum L.). Iranian Journal of Field Crops Research, 12(4): 582-596. [In Persian with English Summary].
2. AL-Mudaris, M.A. 1998. Notes on various parameters recording the speed of seed germination. Der Tropenlandwirt, 99: 147-154.
3. Ashouri, S., Rezaii, M., Emami, A. and Khalilzadeh, G. 2010. Evaluation and yield comparison of advanced lines of winter and facultative wheat on farm of west Azarbaijan province for production high yielding cultivars. 2nd national conference on climate changes and its effect on agriculture and environment, west Azarbaijan agricultural research center, Urmieah, Iran. [In Persian with English Summary].
4. Bayoumi, T.Y., Eid, M.H. and Metwali, E.M. 2008. Application of physiological and biochemical indices as a screening technique for drought tolerance in wheat genotypes. African Journal of Biotechnology, 7: 2341-2352.
5. Cattivelli, L., Reza, F., Badeck, F.W., Mazzucotelli, A.M., Masterangelo, E., Francia C. and Stanca, T.A. 2008. Drought tolerance improvement in crop plants: An integrated view from breeding to genomics. Field Crop Research, 105(1-2): 1-14. [DOI:10.1016/j.fcr.2007.07.004]
6. Dhanda, S.S., Sethi G.S. and Behl, R.K. 2004. Indices of drought tolerance in wheat genotypes at early stages of plant growth. Journal of Agronomy and Crop Science, 190(1): 6-12. [DOI:10.1111/j.1439-037X.2004.00592.x]
7. Fernandez, G.C.J. 1992. Effective selection criteria for assessing plant stress tolerance. Crop Science, 28: 13-16.
8. Fischer, R.A. and Maurer, R. 1978. Drought resistance in spring wheat cultivars. I Grain yield responses. Australian Journal of Agricultural Research, 29(5): 897-912. [DOI:10.1071/AR9780897]
9. Forouzi, M., Ehteshami, S.M.R. Esfahani, M. and Rabiee, M. 2015. Effect of seed size on emergence rate, germination indices, seedling growth and yield of four bread wheat cultivars (Triticum aestivum L.). Cereal Research, 5(1): 67-82. [In Persian with English Summary].
10. Ghasemi,M. 2014. Wheat cultivars tolerance to drought stress of final season in Ardabil region. Agricultural research, education and extension organization of Ardabil, Extension manual, Number 15: 1-13.
11. Hakizimana, F., Haley, S.D. and Turnipseed, E.B. 2000. Repeatability and genotype × environment interaction of coleoptile length measurements in winter wheat. Crop Science, 40(5): 1233-1237. [DOI:10.2135/cropsci2000.4051233x]
12. Jajarmii, V. 2012. Effect of drought stress on germination indices in seven wheat cultivars (T. aestivum L.). Iranian Journal of Agronomy and Plant Breeding, 8(4): 183-192. [In Persian with English Summary].
13. Keyes, G.J., Paolillo, D.J. and Sorrells, M.E. 1989. The effects of dwarfing genes Rhtl and Rht2 on cellular dimensions and rate of leaf elongation in wheat. Annals of Botany, 64: 683-690. [DOI:10.1093/oxfordjournals.aob.a087894]
14. Khan, A., Qureshi, M.S. Ashraf, M.Y. and Hussain, M. 2003. Assessment of genetic variability for drought tolerance in wheat. Pakistan Journal of Agricultural Science, 40: 33-36.
15. Ley, T.W., Stevens, R.G., Topielec, R.R. and Neibling, W.H. 1994. Soil water monitoring and measurement. a pacific northwest publication-Washington. Oregon. Idaho. 1-35.
16. Michel, B.E. and Kaufman, M.R. 1973. The osmotic potential of polyethylene glycol 6000. Plant Physiology, 51(5): 914. [DOI:10.1104/pp.51.5.914] [PMID] [PMCID]
17. Mohammadi, R., Farshadfar, E., Aghaee-Sarbarzeh, M. and Shutka, J. 2003. Locating QTLs controlling drought tolerance criteria in rye using disomic addition lines. Cereal Research Communications, 31(3): 257-264. [DOI:10.1007/BF03543352]
18. Perkons, U. Kautz, T., Uteau, D., Peth, S., Geier, V., Thomas, K., Holz, K.L., Athmann, M., Pude, R., Köpke, U. 2014. Root-length densities of various annual crops following crops with contrasting root systems. Soil Tillage Research, 137: 50-57. [DOI:10.1016/j.still.2013.11.005]
19. Rashidpour, M., Fallahi, H.A. and Ezzatahmadi, M. 2014. Evaluation of germination and seedling traits under drought condition of polyethylene glycol in wheat. Journal of Plant Production Science, 5(1): 24-27. [In Persian with English Summary].
20. Rauf, M., Munir, M. Ul-Hassan, M. Ahmed, M. and Afzai, M. 2007. Performance of wheat genotypes under osmotic stress at germination and early seedling growth stage. African Journal of Biotechnology, 6(8): 971-975.
21. Rebetzke, G.J., Richards, R.A., Fettell, N.A. Long, M., Condon, A.G., Forrester, R.I. and Botwright, T.L. 2007. Genotypic increases in coleoptile length improves stand establishment, vigour and grain yield of deep-sown wheat. Field Crops Research, 100(1): 10-23. [DOI:10.1016/j.fcr.2006.05.001]
22. Rich, S.M. and Watt, M. 2013. Soil conditions and cereal root system architecture: review and considerations for linking Darwin and Weaver. Journal of Experimental Botany, 64(5): 1193-1208. [DOI:10.1093/jxb/ert043] [PMID]
23. Rosyara, U.R., Ghimire, A.A. and Sharma, R.C. 2008. Variation in south Asian wheat germplasm for seedling drought tolerance traits. Plant Genetic Resources: Characterization and Utilization, 1-6. [DOI:10.1017/S1479262108994247]
24. Shahbazi, H., Bihamta, M.R., Taeb, M. and Darvish, F. 2011. Inheritance of seed germination related traits for drought tolerance in bread wheat cultivars. Iranian Journal of Crop Science, 12(2): 199-212. [In Persian with English Summary].
25. Takel, A. 2000. Seedling emergence and growth of sorghum genotypes under variable soil moisture deficit. Agronomy Journal, 48: 95-102. [DOI:10.1556/AAgr.48.2000.1.10]
26. Ward, J.H.J. 1963. Hierarchical Grouping to Optimize an Objective Function. Journal of the American Statistical Association, 58: 236-244. [DOI:10.1080/01621459.1963.10500845]
27. Xu, W., Jia, L., Shi, W., Liang, J., Zhou, F., Li, Q. 2013. Abscisic acid accumulation modulates auxin transport in the root tip to enhance proton secretion for maintaining root growth under moderate water stress. New Phytologist, 197(1):139-150. [DOI:10.1111/nph.12004] [PMID]
28. Youssefian, S., Kirby, E.J.M. and Gale, M.D. 1992. Pleiotropic effects of the GA-insensitive Rht dwarfing genes in wheat. 2. Effects on leaf, stem, ear and floret growth. Field Crops Research, 28(3): 191-210. https://doi.org/10.1016/0378-4290(92)90039-C [DOI:10.1016/0378-4290(92)90040-G]

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