تاثیر تنش شوری و خشکی بر خصوصیات تاثیر تنش شوری و خشکی بر خصوصیات جوانه‌زنی و رشدی گیاهچه جو دره (Hordeum spontaneum Koch)
محورهای موضوعی : تنش های محیطی
سعیده عالی پور
1
(دانشجو)
شکوفه غلامی
2
(دانشگاه شاهد تهران)
طیبه رستمی
3
(دانشجو)
کلید واژه: علف هرز, کلرید سدیم, گیاهچه, پلی اتیلن گلایکول,
چکیده مقاله :
به منظور بررسی جوانه‌زنی بذر جو دره در سطوح مختلف تنش شوری و خشکی دو آزمایش جداگانه در قالب طرح کاملا تصادفی با 5 سطح پتانسیل شوری (صفر (شاهد)،3-، 6-،9 - و12- بار) در 4 تکرار و تنش خشکی شامل 5 سطح پتانسیل خشکی (صفر (شاهد)، 3- ، 6- ، 9- و12- بار) با 4 تکرار در آزمایشگاه تحقیقاتی دانشگاه کشاورزی و منابع طبیعی رامین اهواز در سال 95 انجام شد. از پلی اتیلن گلایکول 6000 و کلرید سدیم به ترتیب برای ایجاد تنش خشکی و شوری استفاده شد. نتایج نشان داد که با افزایش تنش شوری و خشکی به صورت معنی‌داری درصد جوانه‌زنی، سرعت جوانه‌زنی، شاخص بنیه بذر، طول ساقه‌چه و ریشه‌چه، وزن تر ریشه‌چه و ساقه‌چه کاسته شد و زمان 50 درصد جوانه‌زنی نهایی افزایش یافت. به نظر می‌رسد وزن تر و خشک گیاهچه در بین سایر صفات حساسیت بیشتری به تنش شوری و خشکی دارد. علاوه بر این مقایسه گروهی بین تیمارها ناشی از PEG و NaCl نشان داد به دلیل حساسیت بالاتر جودره نسبت به تنش خشکی طول ساقه‌چه، وزن تر گیاهچه و بنیه گیاهچه در شرایط ناشی از PEG به طور معنی‌داری کمتر از تنش ناشی از NaCl بود.
Reference
Abdul-Baki, A.A. and Anderson, J.D. 1973.Vigor determination in soybean by multiple criteria. Crop Science, 10: 31-34.
Abdul-jabbar, A.S., Sammis,T.W. and Lugg, D.G. 1982. Effect of moisture level on the root pattern of alfalfa. Irrigation Science, 3: 197-207.
Akram, M.S., Athar, H.R. and Ashraf, M. 2007. Improving growth and yield of sunflower (Helianthus annuus L.) by foliar application of potassium hydroxide (KOH) under salt stress.Pakistan Journal of Botany. 39(3): 769-776.
Ashraf, C.M. and Shakra, S.A. 1978.Wheat seed germination under low temperature and moisture stress. Agronomy Journal, 65: 135-139.
Baghestani, M.A., Zand, E., Soufizadeh, S., Jamali, M. and Maighani, F. 2007.Evaluation of sulfosulfuron for broadleaved and grass weed control in wheat (Triticumaestivum L.) in Iran. Crop Prot. 26: 1385-1389.
Chauhan B.S.,Gill G. and Preston, C. 2006.Factors affectingseedgermination ofannualsowthistle(Sonchusoleraceus) in southern Australia. Weed Science. 54: 854-860. 10-D.
Chauhan, B.S. and Johanson, D.E. 2008. Seed germination and seedling emergence of giant sensitive plant (Mimosa invisa).Weed Science, 56: 244-248.
Dadkhah, A. 2010. Salinity effect on germination and seedling growth of four medicinal plants. Iranian Journal of Medicinal and Aromatic Plants, 26(3): 358-369. (In Persian)
Duman I. 2006. Effects of seed priming with PEG or K3PO4 on germination and seedling growth in lettuce. Pakistan Journal of Biological Science,3: 923-928.
Esmaili, A. and Eslamic, V. 2010.A comparative study on the effects of salinity and drought on germination and seedling growth of Beauv (Echinochloacrusgalli L.). and rice (Oryza sativa L.) and its relationship with the competition of two plants under stress conditions. Weed research JDL,2(1): 42-29.
Godfery, W.N., Onyango, J.C. and Beck, E. 2007.Sorghum and salinity: 2. Gas exchange and chlorophyll 11 fluorescence of sorghum unde r salt stress. Crop Sci. 44: 806-811.
Harlan, J.R., and Zohary, D. 1966. Distribution of wild wheat and barley. Science. 153: 1074-1080.
Hosseini, M., Zamani, Gh. and BaratiMahmoudi, H. 2007.Seed Germination reaction of Hordeumspontaneum to salinity and drought stress caused by various concentrations of sodium chloride and poly ethylene glycol 6000.The 2nd National Iranian Weed Congress. 9 and 10 February, Mashhad. Vol. 2: Biology and Weed Physiology. P. 160-165.
Huang, J. and Redmann, R.E. 1995. Salt tolerance of Hordeum and Brassica species during germination and early seedling growth. Canadian Journal of Plant Science. 75: 815-9.
Jalilian, A.,Dabiri, A.,Khorrgami, J.,Bassati W.and YousefAbadi, A. 2011.Study of germination and seed emergence of sugar beet monogerm cultivars under different moisture stress conditions.Sugar beet Journal,27(2): 135-152.
Jamil, M., Lee, D., Jung, K.Y., Ashraf, M., Lee, S.C. and Rha, E.S. 2006.Effect of salt stress on germination andearly seedling growth of four vegetables species. Journal of CentralEuropean Agriculture, 7: 273-282.
Kaya, M.and Ipek, D.A. 2003.Effects of different soil salinity levels on germination and seedling growth of safflower (Carthamustinctorius L.) Turkish Journal of Agriculture & Forestry,27: 221-227.
Khajeh-Hosseini, M., Powell, A.A.and Bingham, I.J. 2003.The Interaction between salinity stress and seed vigour during germination of soybean seed s. Seed Science and Technology, 31: 715-725.
Maguirw, I.D. 1962.Maguire, James D. Speed of germination-aid in selection and evaluation for seedling emergence and vigor1. Crop Science, 2(2): 176-177.
MehdiKhani, H. 2007.Effect of Salt Stress on Germination of Medicinal Plants. Third Conference of Medicinal Plants. Tehran, Shahed University. November month 144.
Michel, B.E. 1983.Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Plant Physiol. 72: 66-70.
Noor, E., Azhar, F.M. and Khan, A.L. 2001.Differences in responses of gossypiumhirsutum L. varieties to NaCl salinity at seedling stage. Int. J. Agri. Biol. (4): 345-347.
Omoto, E., Taniguchi, M. and Miyake, H. 2010.Effects of Salinity Stress on the Structure of Bundle Sheath and Mesophyll Chloroplasts in NAD-Malic Enzyme and PCK Type C(4) Plants. Plant Production Science, 13(2): 169-176.
Parida, A.K. and Das, A.B. 2005. Salt tolerance and salinity effects on plants. Ecotoxicology and environmental Safety. 60: 324-349.
Shahid, M., Pervez, M.A.and Ashraf, MY. 2011.Characterization of salt tolerant and salt sensitive pea (Pisumsativum L.) genotypes under saline regime. Pakistan journal of Life and Social Science, 9: 201-208.
Song, J., Feng, G., Tian, C.Y. and Zhang, F.S. 2005.Strategies for adaptation of Suaedaphysophora, Haloxylonammodendron and Haloxylonpersicum to saline environment during seed germination stage. Ann. Bot. 96: 399-405.2 93-317.
Tunçtürk, M., Tunçtürk, R.,Yildirim, B. and Çiftçi, V. 2011. Changes of micronutrients, dry weight and plant development in canola (Brassica napus L.) cultivars under salt stress. Afr. J. Biotechnol.,10 (19): 372-373.
Turhan, H.andAyaz, C. 2004. Effect of salinity on seedling emergence and growth of sunflower (Helianthus annuus L.) cultivars. International Journal of Agricultural Biological, 6: 149-152.
Windauer L., Altuna A. and Benech-Arnold R. 2007. Hydro time analysis of Lesquerellafendleri seed germination responses to priming treatments. Industrial Crops and Products, 25: 70-74.
