تأثیر پرایمینگ با سالیسیلیک اسید روی خصوصیات رشدی گیاهچه گاوزبان (Borago officinalis)

نوع مقاله : پژوهشی

نویسندگان

1 عضو هیأت علمی دانشکده کشاورزی و پژوهشکده فیزیولوژ و بیوتکنولوژی دانشگاه زنجان.

2 دانشجوی کارشناسی ارشد زراعت دانشگاه زنجان.

3 عضو هیأت علمی دانشگاه مراغه

چکیده

    مرحله جوانه‎زنی و استقرار گیاهچه‌ها از مراحل عمده در چرخه زندگی گیاهان است که تحت تأثیر عوامل محیطی مختلف قرار می گیرد. این تحقیق به منظور بررسی تاثیر پرایمینگ بذر روی برخی از خصوصیات گیاه گاوزبان در مراحل اولیه رشد انجام شد. تیمارهای آزمایشی شامل پرایمینگ با چهار سطح سالیسیلیک اسید (2000،500،1000،1500  میکرومول)، بذر تیمار شده با آب مقطر و تیمار شاهد یا بذور خشک بود. آزمایش به صورت بلوک های کامل تصادفی با چهار تکرار در مزرعه تحقیقاتی دانشگاه زنجان انجام گردید.  پرایمینگ با اسید سالیسیلیک باعث بهبود سرعت و درصد سبز کردن و رشد گیاهچه گاوزبان شد. نتایج نشان داد که تأثیر پرایمینگ با سالیسیلیک اسید بر درصد سبز کردن، میانگین تعداد روزهای سبز کردن، وزن خشک کل گیاهچه، وزن تر، سطح برگ و سطح ویژه برگ معنی‎دار بود. بالاترین درصد و شاخص سبز کردن و کمترین میانگین تعداد روزهای جوانه‎زنی و سطح ویژه برگ مربوط به غلظت 500 میکرومول، و بالاترین وزن خشک گیاهچه، وزن تر و سطح برگ گیاهچه مربوط  به بذور پرایم شده با غلظت 2000 میکرومول سالیسیلیک اسید بود. هم‏چنین کمترین مقادیر درصد سبز کردن و صفات رشد گیاهچه در تیمار بذور شاهد و پس از آن در بذور تیمار شده با آب مقطر مشاهده گردید. با افزایش سرعت و شاخص سبز  گیاهچه‎ها میزان تولید ماده خشک افزایش یافت

کلیدواژه‌ها

عنوان مقاله [English]

Effect of seed priming with salicylic acid on growth characteristics of borage plants (Borago officinalis) seedlings

نویسندگان [English]

  • Farid Shekari 1
  • ramin Baljani 2
  • jalal saba 1
  • kamran Afsahi 1
  • faribors Shekari 3
1 Scientific Board of Agriculture, Physiology and Biotechnology Faculty, Zanjan University, Zanjan, Iran.
2 M.Sc. Student of Agronomy, Zanjan University, Zanjan, Iran.
3 Scientific Board of Maragheh University, Maragheh, Iran.
چکیده [English]

Germination and seedlings establishment are critical stages in the plant life under different environmental
conditions. For investigation of seed priming effects on borage plants (Borago officinalis) characteristics, an experiment was carried out in a completely randomized block design in four replications. Treatments consisted of seed priming by salicylic acid concentrations (500, 1000, 1500, 2000 µ M), seeds priming by distilled water (hydropriming) and non priming seeds were considered as control. Results showed that priming with salicylic acid had significant effects on emerged seedlings percentage, mean time to emergence, emergence index, fresh and dry weight, leaf area and specific leaf area (SLA). The highest emergence and emergence index of seedlings with the lowest mean time to emergence was observed in 500 µ M concentration of salicylic acid and the highest seedling dry weight and leaf area were found in 2000 µ m salicylic acid. The lowest values among treatments were belong to control followed by hydropriming of seeds treatment. Results indicated that dry weight of seedlings were increased by increasing emergence index and dereasing the mean time to emergence

کلیدواژه‌ها [English]

  • borage
  • Borago officinalis
  • priming
  • Salicylic acid
  • seedling growth
  • Emergence index
  • leaf area

مراجع

Asgari, E. and Tagvayi, M. 1998. Classification of durum wheat cultivars for drought resistance. Proceedings of 5th Iranian Congress of Crop Production and Plant Breeding. Seed and Plant Improvement Institute, Karaj, Iran. pp: 253-254.
Baalbaki, R. Z., Blelk, R. A. and Tahouk, S. N. 1999. Germination and seedling development of drought tolerant and susceptible wheat under moisture stress. Seed Science Technology 27: 291-302.
Barkosky, R. R. and Einhellig, F. A. 1993. Effects of salicylic acid on plant water relationship. Journal of Chemistry Ecology 19: 237–247.
Capron, I., Corbineau, F. F., Dacher, C., Come, J. and Job, D. 2000. Sugar beet seed priming: Effect of priming conditions on germination, solubilization, f1 I-S globulin and accumulation of LEA proteins. Science Research 10: 243-254
Cutt, J. R. and Klessig, D. F. 1992. Salicylic acid in plants: A changing perspective. Pharmaceutical Technology 16: 25–34.
Demir Kaya, M., Okcu, G., Atak, M. A. and Kolsarici, O. 2006. Seed treatment to overcome salt and drought stress during germination in sunflower. European Journal of Agronomy 24:291-295.
Duhal, P. and Bradford, K. J. 1990. Effects of priming and endosperm integrity on germination rates of tomato genotypes. II. Germination at reduced water potential. Seed Science Research Journal of Experimental Botology 41: 1441-1453.
Ellis, R. H. and Roberts, E. H. 1981. The quantification of aging and survival in orthodox seeds. Seed Science Technology 9:373-409.
Fariduddin, Q., Hayat, S. and Ahmad, A. 2003. Salicylic acid influences net photosynthetic rate, carboxylation efficiency, nitrate reductase activity and seed yield in Brassica juncea. Photosynthetica 41: 281-284
Fooladvand, A. 2007. Encyclopedia of medical and healer plants. Yaran Publisher, Tabriz, Iran. 329 Pp..  [In Persian with English Abstract].
Foti, S., Cosention, S. L., Basra, A. S. and Karssen, G. M. 2002. Effect of osmoconditioning upon seed germination of sorghum, Sorghum bicolor (L.) Moench, under low temperatures. Seed Science Technology 30: 521-533.
Harper, J. P. and Balke, N. E. 1981. Characterization of the inhibition of K+ absorption in oat roots by salicylic acid. Plant Physiology 68: 1349–1353.
Hurly, R. F., Van Staden, J. and Smith, M. T. 1991. Improved germination in seeds of guayule (Parthenium argentatum) following polyethylene glycol and gibberellic acid pretreatments. Annual Applied Biology 118:175-184
Khan, W., Prithiviraj, B. and Smith, D. 2003. Photosynthetic responses of corn and soybean to foliar application of salicylates. Journal of Plant Physiology 160: 485–492.
Kyungjin, C., Ongseok, L., Dong, K. S. and Eunhi, H. 1996. Dry matter production and seed yield of soybean cultivars as affected by excessive water stress at vegetative growth and flowering stages, RDA. Journal of Agricultural Science. Upland Industry. Crop Science 38: 2. 117–122 .
Larque-Saaveda, A. 1979. Stomatal closure in response to salicylic acid treatment. Plant physiology 93: 371–375.
Lee, S. S., Kim, J. H., Hong, S. B., Yuu, S. H. and Park, E. H. 1998. Priming effect of rice seeds on seedling establishment under adverse soil conditions. Korean Journal of Crop Science 43: 194-198.
Makizadeh Tafti, M. 2006. Effects of osmopriming on seed germination of borago plant seeds. Second Congress of Medical Plants. Tehran, Iran. P. 143.  [In Persian with English Abstract].
Martin-Mex, R., Villanueva-Couoh, E. and Herra-Campos, T. 2005. Positive effect of salicylates on the flowering of African Violet. Scintia Horticulturae 103:499-502.
Sivritepe, N., Sivritepe, H. O. and Eris, A. 2003. The effect of NaCl priming on salt tolerance in melon seedling grown under saline conditions. Scientia Holticuturae 97: 229-237.
Tadashi, H. and Theodore, C. 1999. Some characteristics of reduced leaf photosynthesis at midday in maize growing in the field. Field Crops Research 62: 53-62.
Tavakoli, M. and Sedagati, M. 1993. Medical plants. Rozbehan Publisher, Tehran, Iran. 120 Pp. [In Persian with English Abstract].
Yoon, B. Y. H., Lang, H. J. and Greg Cobb, B. 1997. Priming with salt solutions improves germination of pansy seeds at high temperaturers. Horticulture Science 32: 248-250.

فایل ها

اشتراک گذاری

ارجاع به این مقاله

آمار