Volume 4, Issue 1 ((Spring and Summer) 2017)                   Iranian J. Seed Res. 2017, 4(1): 75-87 | Back to browse issues page


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Abstract:   (12651 Views)
In order to study drought stress effect at the reproductive stage on seed germination characteristics of seven rice genotypes, an experiment was carried out at Sari Agricultural Sciences and Natural Resources University in 2014. This study was conducted on drought-stressed seeds and seeds grown under normal conditions. The results of orthogonal mean comparison among non-stressed seeds showed that local genotypes had a lower germination index, germination rate, water percentage of seedling tissue, shoot length and root dry weight than the improved genotypes. Among stressed seeds, however, local genotypes had a higher germination index and germination rates than those of improved genotypes. Comparison of non-stressed seeds of susceptible and tolerant genotypes indicated that susceptible genotypes had a higher germination index, germination rate and germination percentage than tolerant genotypes. On the other hand, the comparison of the stressed seeds of susceptible and tolerant genotypes revealed that drought stress increased the time to 10, 50, 90 and 95% germination, water percentage of seedling tissue and plantlet length in susceptible genotypes, which were higher than those of tolerant genotypes. In conclusion, it seems that drought stress at reproductive stage has a significant effect on germination characteristics of the plant’s following generation. However, their responses are different, depending on the level tolerance of the genotype to stress and genetic origin.

Highlights: 
1-  Drought stress at reproductive stage has a significant effect on germination characteristics of the following generation of the rice plant.
2-  Among stressed seeds, local genotypes have a higher germination index and germination rates than those of the improved genotypes.
3-  Drought stress increases the time of germination in susceptible genotypes, which is higher than that in the tolerant genotypes.
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Type of Study: Research | Subject: Seed Physiology
Received: 2016/09/19 | Revised: 2018/01/1 | Accepted: 2017/03/11 | ePublished: 2017/12/16

References
1. Abdoli, M., and Saeidi, M. 2012. Effects of water deficiency stress during seed growth on yield and its components, germination and seedling growth parameters of some wheat cultivars. International Journal of Agriculture and Crop Sciences, 4(15): 1110-1118.
2. Abdul-Baki, A., and Anderson, J.D. 1973. Vigor determination in soybean seed by multiple criteria. Crop Science, 13: 630-633. [DOI:10.2135/cropsci1973.0011183X001300060013x]
3. Agarwal, R.L. 2003. Seed technology. Publication Company Limited New Delhi, India. 550p.
4. Alqudah, A.M., Samarah, N.H., and Mullen, R.E. 2011. Drought stress effect on crop pollination, seed set, yield and quality. In Alternative farming systems, biotechnology, drought stress and ecological fertilisation. Springer Netherlands. 193-213. [DOI:10.1007/978-94-007-0186-1_6]
5. Anonymous. 2014. Standard Evaluation System for Rice (SES). IRRI (International Rice Research Institute) Loss Banos, Leguna, Philippines.
6. Aruna, M.J. 2013. Effect of withholding irrigation water after complete heading on rice yield and seed quality in Mwea, Kirinyaga county-Kenya. Ph.D. Dissertation Department of Agricultural Science and Technology, Kenyatta University, NAIROBI.
7. Balkan, A. 2012. Effect of artificial drought stress on seed quality of bread wheat. Iranian Journal of Plant Physiology, 2(2): 403-412.
8. Crusciol, C.A.C., Toledo, M.Z., Arf, O., and Cavariani, C. 2012. Water supplied by sprinkler irrigation system for upland rice seed production. Bioscience Journal, 28(1): 34-42.
9. Diaz, C., Hossein, M., Merca, S., and Mew, T. 1998. Seed quality and effect on rice yield: finding from farmer participatory experiments in central Luzon, Philippine. Journal of Crop Science, 23(2): 111-119.
10. Dornbos, D.L., Mullen R.E., and Shibles, R.E. 1989. Drought stress effects during seed fill on soybean seed germination and vigor. Crop Science, 29(2): 476-480. [DOI:10.2135/cropsci1989.0011183X002900020047x]
11. Dornbos, D.L., and Mullen, R.E. 1985. Soybean seed quality and drought stress intensity during development. Iowa Seed Science, 7: 9-11.
12. Farooq, M., Wahid, A., Kobayashi, N., Fujita, D., and Basra, S.M.A. 2008. Plant drought stress effects, mechanisms and management. Agronomy for Sustainable Development, 29: 185-212. [DOI:10.1051/agro:2008021]
13. Ghassemi-Golezani, K., Lotfi, R., and Norouzi, M. 2012. Seed quality of soybean cultivars affected by pod position and water stress at reproductive stages. International Journal of Plant, Animal and Environmental Sciences, 3: 119-125.
14. Ilieva, V., Mitrev, S., Karov, I., Markova, N., and Todorovska, E. 2013. Seed quality and its importance in agricultural production and safety of agricultural products. In: International Conference \"Quality and Competence 2013\", 13-15 June 2013, Ohrid, Macedonia.
15. ISTA. 2004. International rules for seed testing. The International Seed Testing Association (ISTA), Zurich, Switzerland.
16. Maguire, J.D. 1962. Speed of germination-aid in selection and evaluation for seedling emergence and vigour. Crop Science, 2: 176-177. [DOI:10.2135/cropsci1962.0011183X000200020033x]
17. Mushtaq, R., Katiyar, S., and Bennett, J. 2008. Proteomic analysis of drought stress-responsive proteins in rice endosperm affecting grain quality. Journal of Crop Science and Biotechnology, 11(4): 227-232.
18. Nam, K.H., and Kim, C.G. 2015. Effects of water stress on chemical composition of rice grains. CNU Journal of Agricultural Science, 42(1):1-5. [DOI:10.7744/cnujas.2015.42.1.001]
19. Nam, K.H., Kim, D.Y., Shin, H.J., Nam, K.J., An, J.H., Pack, I.S., Park, J.H., Jeong, S.C., Kim, H.B., and Kim, C.G. 2014. Drought stress-induced compositional changes in tolerant transgenic rice and its wild type. Food Chemistry, 153: 145-150. [DOI:10.1016/j.foodchem.2013.12.051] [PMID]
20. Samarah, N., and Alqudah, A. 2011. Effects of late-terminal drought stress on seed germination and vigor of barley (Hordeum vulgare L.). Archives of Agronomy and Soil Science, 57(1): 27-32. [DOI:10.1080/03650340903191663]
21. Shahi, C., Kiran Bargali, V., and Bargali, S.S. 2015. How seed size and water stress effect the seed germination and seedling growth in wheat varieties?. Current Agriculture Research Journal, 3(1): 60-68. [DOI:10.12944/CARJ.3.1.08]
22. Smiciklas, K.D., Mullen, R.E., Carlson, R.E., and Knapp, A.D. 1992. Soybean seed quality response to drought stress and pod position. Agronomy Journal, 84: 166-170 [DOI:10.2134/agronj1992.00021962008400020008x]
23. Vieira, R.D., Tekrony, D.M., and Egli, D.B. 1992. Effect of drought and defoliation stress in the field of soybean seed germination and vigor. Crop Science, 32: 471-475. [DOI:10.2135/cropsci1992.0011183X003200020037x]
24. Yan, D., Duermeyer, L., Leoveanu, C., and Nambara, E. 2014. The functions of the endosperm during seed germination. Plant and Cell Physiology, 55(9): 1521-1533. [DOI:10.1093/pcp/pcu089] [PMID]
25. Zibaee, A. 2013. Rice: importance and future. Journal of Rice Research,‌ 1(2):‌ e102.
26. Zubaer, M.A., Chowdhury, A.K.M.M.B., Islam, M.Z., Ahmed, T., and Hasan, M.A. 2007. Effects of water stress on growth and yield attributes of Aman rice genotypes. International Journal of Sustainable Crop Production, 2: 25-30.

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