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اثر تنش خشکی بر مؤلفه‌های فتوسنتزی، عملکرد و اجزای عملکرد رقم‌های یونجه گرمسیری

نوع مقاله : علمی - پژوهشی

نویسندگان

1 استادیار پژوهشی، بخش تحقیقات اصلاح و تهیه نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی صفی‌آباد، سازمان تحقیقات، آموزش و ترویج کشاورزی، دزفول، ایران

2 استادیار پژوهشی، بخش تحقیقات فنی و مهندسی، مرکز تحقیقات کشاورزی و منابع طبیعی صفی‌آباد، سازمان تحقیقات، آموزش و ترویج کشاورزی، دزفول، ایران

3 استادیار، گروه علوم و مهندسی آب، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

چکیده

چکیده
به منظور مطالعه اثر تنش خشکی بر خصوصیات برگی و فتوسنتزی رقم‌های یونجه گرمسیری، آزمایشی به‌صورت کرت‌های خردشده در قالب طرح بلوک‌های کامل تصادفی با سه تکرار در سال‌های 1398- 1396 در مرکز تحقیقات کشاورزی صفی‌آباد دزفول اجرا شد. عامل اصلی چهار سطح آبیاری (تأمین 25، 50، 75 و 100 درصد نیاز آبی) و عامل فرعی پنج رقم یونجه (بغدادی، نیکشهری، یزدی، مساسرسا و امید) بودند. پس از استقرار گیاه در سال اول، عملکرد ماده خشک و تر و صفات مرتبط با خصوصیات برگی و فتوسنتزی اندازه‌گیری و ارزیابی شدند. نتایج نشان داد که با اعمال تنش خشکی عملکرد ماده‌تر و خشک، محتوای آب نسبی برگ (RWC) و حداکثر کارایی کوانتوم فتوسیستم دو (ΦPSII) کاهش ولی درصد ماده خشک علوفه، نسبت وزنی برگ به ساقه، میزان نشت الکترولیت (EL) و شاخص کلروفیل (SPAD) افزایش یافتند. رقم بغدادی، بیشترین عملکرد ماده خشک علوفه در شرایط بدون تنش (9/16 تن در هکتار) و هم‌چنین بالاترین شاخص تحمل به تنش (STI) را درکلیه سطوح تنش خشکی (با مقادیر به‌ترتیب 5/19، 4/12 و 6 در تنش ملایم، متوسط و شدید) داشت. رقم یزدی کمترین عملکرد ماده خشک علوفه در شرایط بدون تنش (9/9 تن در هکتار) را داشت اما شاخص پایداری عملکرد (YSI) بالایی در شرایط تنش ملایم (988/0) تا شدید (364/0) داشت.
 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effect of Drought Stress on Photosynthetic Parameters, Yield and Yield Components of Tropical Alfalfa Genotypes

نویسندگان [English]

  • Ahmad Ali Shoushi Dezfuli 1
  • Mohammad khorramian 2
  • Ali Assareh 3

1 Assistant Professor, Department of Seed and Plant Improvement Research Center, Safiabad Agricultural Research, Education and Natural Resources Center, Agricultural Research, Education and Extension Organization (AREEO), Dezful, Iran

2 Assistant Professor, Department of Agricultural Engineering Research Institute, Safiabad Agricultural Research, Education and Natural Resources Center, Agricultural Research, Education and Extension Organization (AREEO), Dezful, Iran

3 Assistant Professor, Department of Water Science and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

چکیده [English]

 
Abstract
Introduction
Water resources limitation and plant stress due to water shortage is one of the important and common environmental stresses in agricultural production, including forage production in hot and dry areas. Therefore, the selection and development of drought-tolerant cultivars are very important. In irrigated lands of Iran, the average of irrigation efficiency is 37% and water productivity is 0.8 kg per cubic meters, which is lower than the world average. For increasing water efficiency, maintaining the production capacity and creating sustainable agriculture, it is necessary to identify the effective factors on the reduction of irrigation water productivity and provide an appropriate solution. In arid regions such as Khuzestan province, by using both a proper irrigation program and irrigation levels below the water requirement, obtaining an acceptable yield of alfalfa could be expected. In order to achieve these objectives, determination of the irrigation water productivity of tropical alfalfa cultivars and their drought tolerance under different irrigation regimes were the main aims of this study.
 
Materials and Methods
For evaluating tropical alfalfa genotypes under different drought stresses, an experiment was carried out based on split plots design with three replications in Safiabad Agricultural Research Center, Dezful, Iran, during 2019-2020. The main factor was four levels of irrigation (25, 50, 75 and 100% of water requirement) and the second factor was five alfalfa cultivars (Baghdadi, Nikshahri, Yazdi, Mesasirsa, and Omid). In this experiments, plant characteristics including dry and wet forage yield, percentage of dry forage, leaf to stem weight ratio, chlorophyll index (SPAD), electrolyte leakage from the leaf cell membrane (EL), relative leaf water content (RWC), and Maximum quantum yield in the dark-adapted conditions (ΦPSɪɪ) were determined.
 
Results and Discussion
The results revealed that by applying drought stress, wet and dry forage yields, RWC, and ΦPSɪɪ  decreased but the percentage of dry forage, leaf to stem weight ratio, EL, and SPAD increased. Among the studied genotypes, the Baghdadi genotype had the highest dry forage yield in all situations; non-stress conditions (16.9 t/ha), mild drought stress (15.094 t/ha), moderate drought stress (9.58 t/ha) and severe drought stress (4.664 t/ha). The Yazdi genotype had the lowest dry forage yield; 9.9, 9.7, 5.7 and 3.6 t/ha for non-stress, mild, moderate, and severe drought stresses conditions, respectively. In our experiment, the Baghdadi genotype showed a high-stress tolerance index (STI) and we highly recommend planting it in the north of Khuzestan province, but the Yazdi alfalfa genotype despite low dry forage yield under both non-stress and drought stress conditions is not recommended due to low production. We suggest using Yazdi genotype in eugenic plans due to high yield stability index (YSI) under drought stress conditions and having some favorable physiological and photosynthetic parameters associated with drought stress tolerance.
 
Conclusion
In this study, Baghdadi alfalfa cultivar was identified as a desirable cultivar in tropical regions of Iran such as Khuzestan. Yazdi alfalfa cultivar had favorable physiological and photosynthetic components. Thus, it can be used as a favorable parent in breeding programs such as synthetic alfalfa production (through the transfer of genes associated with drought stress tolerance).
 

کلیدواژه‌ها [English]

  • SPAD
  • Dry Matter
  • Electrolyte Leakage
  • Forage
مراجع
References
Abadouz, Gh. R., Rahnama, A., & Fathi, G. (2013). Effects of sowing patterns and density on grain yield and yield components of alfalfa (Medicago sativa L.) cv. Mesa-Sirsa in South Khozestan conditions. Plant Productions, 36(3), 53-64. [In Farsi]
Ahmadi, K., Ebadzadeh, H. R., Hosseinpour, R., Hatami, F., Abdehshah, H., & Kazemian, A. (2020). Agricultural statistics of the crop year 2018-2019. Iran: Ministry of Jihad Agriculture, Deputy of Planning and Economy, Information and Communication Technology Center Press. [In Farsi]
Basafa, M., & Taherian, M. (2010). Evaluation of drought tolerance in alfalfa (Medicago sativa) ecotypes using drought tolerance indices. Environmental Stresses in Crop Sciences, 3(1), 69-81.  [In Farsi]
Beheshti, A. R. (2016). Evaluation of drought tolerance in Hamedani alfalfa (Medicago sativa.L) ecotypes by tolerance and sensitivity indices. Environmental Stresses in Crop Sciences, 9(3), 257-266.  [In Farsi]
Behnamfar, K., Siadat, S. A., Bakhshandeh, A. M., Kashefipour, S. M., Alemi Saied, Kh., & Jaffari, A. A. (2015). Evaluation of impact of water deficit on yield and water use efficiency of four cultivars alfalfa (medicago sativa) in khouzestan conditions-Ahvaz. Journal of Irrigation Sciences and Engineering, 37(3), 63-71.  [In Farsi]
Besma, B. D., & Denden, M. (2012). Effect of salt stress on growth, anthocyanins, membrane permeability and chlorophyll fluorescence of okra (Abelmoschus esculentus L.) seedlings. American Journal of Plant Physiology, 7(4), 174-183.
Bouslama, M., & Schapaugh, W. T. (1984). Stress tolerance in soybean. Part 1: evaluation of three screening techniques for heat and drought tolerance. Crop Science, 24(5), 933-937.
Buxton, D. R. (2004). Growing quality forages under variable environmental conditions USDA. Iowa State University, USA.
Dehbalaei, S., Farshadfar, E., & Farshadfar, M. (2013). Assessment of drought tolerance in bread wheat genotypes based on resistance/ tolerance indices. International Journal of Agriculture and Crop Sciences, 5(20), 2352-2358.
Farkhonded, R., Nabizadeh, E., & Jalilnezhad, N. (2012). Effect of salinity stress on proline content, membrane stability and water relation in two sugar beet cultivars. International Journal of Agicultural Science, 2(5), 385-392.
Fernandez, G. C. J. (1992). Effective selection criteria for assessing stress tolerance. In: Kuo, CG. (Ed) Proceedings of the International Symposium on Adaptation of vegetables and other food crops in temperature and water stress (pp. 257-270). Tainan, Taiwan: AVRDC Publication.
Gregersen, P. L., Culetic, A., Boschian, L., & Krupinska, K. (2013). Plant senescence and crop productivity. Plant Molecular Biology, 82(6), 603-622.
Hosseinzadeh, S. R., Amiri, H., & Ismaili, A. (2016). Effect of vermicompost fertilizer on photosynthetic characteristics of chickpea (Cicer arietinum L.) under drought stress. Photosynthetica, 54(1), 87-92.
Ismail, S. M., & Almarshadi, M. H. (2013). Maximizing Productivity and Water Use Efficiency of Alfalfa under Precise Subsurface Drip Irrigation in Arid Regions. Irrigation and Drainage, 62(1), 57-66.
Jalilian, A., Ghobadian, R., Shirkhani, A., & Farnia, A. (2014). Effects of nitrogen and drought stress on yield components, grain yield and quality of SC 704 corn. Journal of Agriculture Research and Construction, 16, 102-251.  [In Farsi]
Kalantar Ahmadi, S. A., Ebadi, A., Jahanbakhsh, S., Daneshian, J., & Siadat, S. A. (2014). Effects of water stress and nitrogen on changes of some amino acids and pigments in canola. Bulletin of Environment, pharmacology and Life Sciences, 4, 114-122.
Li, W. R., Zhang, S. Q., Ding, S. Y. and Shan, L. (2010). Root morphological variation and water use in alfalfa under drought stress. Acta Ecologica Sinica, 30, 5140-5150.
Manchanda, G., & Garg, N. (2008). Salinity and its effects on the functional biology of legumes. Acta Physiologia Plantarum, 30(5), 595-618.
Martens, D. (2007). Management of drought stressed alfalfa. Available at Http:/www.Co.stearns.
Usldocum-ents/ E×T 07242007WC. Pdf
Moghadam, A. (2010). The effect of drought stress on morpho-physiological traits of alfalfa (Medicago sativa L.) genotypes under organic farming. Ph.D. Thesis of Plant Breeding, Univerrsity of Natural Resources and Applied Life Sciences of Vienna, Vienna.

Moosavifar, B. E., Behdani, M. A., Jami Alaahmadi, M., & Hosaini Bojd, M. S. (2011). Changes of
Chlorophyll Index (SPAD), Relative Water Content, Electrolyte Leakage and Seed Yield in Spring Safflower Genotypes under Irrigation Termination. Iranian Journal of Field Crops Research, 9(3), 525-534.  [In Farsi]

Muller, B., Pantin, F., Génard, M., Turc, O., Freixes, S., Piques, M., & Gibon, Y. (2011). Water deficits uncouple growth from photosynthesis, increase C content, and modify the relationships between C and growth in sink organs. Journal Experiment Botany, 62(6), 1715-1729.
Nekoyanfar, Z., Lack, S., & Abadouz, G. R. (2017). Assessment effect of cutting time and soil salinity on quality and quantity forage yield of five alfalfa (Medicago sativa L.) varieties under Ahvaz conditions. Plant Productions, 40(3), 113-127. [In Farsi]
Paye, W.A. (2000). Water relations of sparse canopied crops. Agronomy Journal, 92(5), 807-814.
Pormosavi, S. M., Galoi, M., & Daneshian, J. (2006). Evaluation of manure application on soybean leaf chlorophyll content and membrane stability under drought conditions. Presented at the Conference 9th Crop Sciences Proceeding, 2006-08-27), Tehran.
Rahbarian, R., Khavari-Nejad, R., Ganjeali, A., Bagheri, A., & Najafi, F. (2013). Drought stress effects on photosynthesis, chlorophyll fluorescence and water relations in tolerant and susceptible chickpea (Cicer arietinum L.) genotypes. Iranian Journal of Pulses Research, 4(2), 87-96.  [In Farsi]
Rahnama, A. A., Abadouz, G. R., Shoushi dezfuli, A. A., Danaee, K., Tabatabaee, A., Miri, K., & Dehghani, A. (2018). "Omid" improved alfalfa population suitable for subtropical regions. Research Achievements for Field and Horticulture Crops, 7(1), 63-71.  [In Farsi]
Sabbaghpour, S. H. (2003). Mechanisms of drought tolerance in plants. Journal of Agricultural Drought, 13, 21-32.
Safarnejad, A. (2004). Characterization of somaclones of alfalfa (Medicago sativa L.) for drought tolerance. Journal of Agricultural Science and Technology, 6, 121-127.  [In Farsi]
Sajjadinia A., Ershadi, A., Hokmabadi, H., Khayyat, M., & Gholami, M. (2010). Gas exchange activities and relative water content at different fruit growth and developmental stages of on and off cultivated pistachio trees. American Journal of Agricultural Economics, 92(1), 1-6.
Shalhevet, J. (1993). Plants under water and salt stress. In: Fowden L, Mansfield T, Stoddart J ed. Plant adaptation to environmental stress (pp, 133-154). New York: Chapman & Hall.
Sinclair, T. R., & Ludlow, M. M. (1985). Who taught plants thermodynamics? The unfulfilled potential of plant water potential. Australian Journal Plant Physiology, 12(3), 213-217.
Soheili Movahed, S., Esmaeili, M. A., Jabbari, F., Khoramdel, S., & Fooladi, A. (2017). Effect of water deficit on leaf relative water content, chlorophyll fluorescence indices and grain yield of four maize beans. Journal of Crop Science, 10(1), 169-190.  [In Farsi]
Tripathy, J. N., Zhng, J., Robin, S., Nguyen, T. T., & Nguyen H. T. (2000). QTLS for cell membrane stability mapped in rice (Oryza sativa L.) under drought stress. Theoretical and Applied Genetics, 100(8), 1197-1202.
Weatherley, P. E. (1995). Studies in water relation of cotton plants, the field measurement of water deficit in leaves. New Phytologist, 49(1), 81-87.
Yadavi, A., Modaress Sanavi, A., & Zarghami, R. (2000). The effects of drought stress on oats speciesvin germination step. Presented at the articles Summary in 6 Session of Agriculture and Plants Improvement Congress, Mazandaran University, Babolsar, Iran. [In Farsi]
Zhao, G. Q., Ma, B. L., & Ren, C. Z. (2007). Growth, gas exchange, chlorophyll fluorescence, and ion content of naked oat in response to salinity. Crop Science, 47(1), 123-131.
تولیدات گیاهی
دوره 44، شماره 4
دی 1400
صفحه 545-558
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هم رسانی
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