ارزیابی تأثیر پاکلوبوترازول و ترینگزاپک‌اتیل بر ویژگی‌های ریخت‌شناختی و فیزیولوژیکی دو گیاه پرچینی رزماری (Rosmarinus officinalis) و نوش (Thuja orientalis “Morgan”)

نوع مقاله : مقاله پژوهشی


1 دانشجوی سابق کارشناسی ارشد، دانشکدۀ کشاورزی، دانشگاه آزاد اسلامی واحد خوراسگان (اصفهان)

2 دانشیار، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان

3 دانشیار، دانشکدۀ کشاورزی، دانشگاه شهرکرد


در سال­های اخیر استفاده از تنظیم­کننده­های رشد به‌ویژه کندکننده­های رشد افزایش چشمگیری یافته است. تریازول­ها (پاکلوبوترازول و ترینگزاپک اتیل) به‌عنوان مؤثرترین و کم‌خطرترین کندکننده­های رشد سبب ایجاد گیاهان پوششی کوتاه‌تر و متراکم­تر می­شود که برگ‌های سبز تیره­تر و ضخیم­تر دارد. برای ارزیابی تأثیر پاکلوبوترازول و ترینگزاپک­اتیل بر ویژگی‌های ریخت‌شناختی (مرفولوژیکی) و فیزیولوژیکی دو گیاه پرچینی (رزماری و نوش رقم مورگان) آزمایشی در قالب طرح بلوک کامل تصادفی شامل شانزده تیمار و سه تکرار اجرا شد. بدین منظور بی‌درنگ پس از هرس هر دو گیاه، محلول­پاشی برگی پاکلوبوترازول با غلظت­های 1000 و 4000 میلی­گرم در لیتر، ترینگزاپک­اتیل با غلظت 1000 میلی­گرم در لیتر و آب مقطر به‌عنوان شاهد انجام شد. صفات مورد اندازه‌گیری در این پژوهش شامل ارتفاع، طول و عرض گیاه، وزن ­تر و خشک بخش­های هرس‌شده، طول میانگره، میزان پرولین، سبزینۀ (کلروفیل)a، سبزینۀb و سبزینۀ کل بود. نتایج نشان دادند کندکننده­های رشد سبب کاهش رشد طولی و عرضی، طول میانگره‌ها، وزن تر و خشک بخش­های هرس‌شدۀ­ گیاه و افزایش میزان پرولین, سبزینۀ a، b و کل نسبت به تیمار شاهد ­شد.


عنوان مقاله [English]

The effect of Paclobutrazol and Trinexapac-ethyl on morphological and physiological characteristics of Rosmari (Rosmarinus officinalis) and Thuja (Thuja orientalis “Morgan”) as two hedging plants

نویسندگان [English]

  • Najmeh Zamani 1
  • Nematollah Etemadi 2
  • Abdolrahman Mohammadkhani 3
1 Former M.Sc. Student, Faculty of Agriculture-Islamic Azad University Isfahan (Khorasgan Branch), Iran
2 Associate Professor, Department of Horticultural Science, Faculty of Agriculture, Isfahan University of Technology, Iran
3 Associate Professor, Department of Horticultural Science, Faculty of Agriculture, Shahrekord University, Iran
چکیده [English]

In recent years application of plant growth regulators especially growth retardants, has been significantly increased. Trizols (paclobutrzol and trinexapac-ethyl) as the most effective and least harmful growth retardants, induce more dwarf and denser cover plants with both darker and thicker leaves.  Therefore, an experiment based on completely randomized block design with 16 treatments and 3 replicates, was conducted to investigate the effect of paclobutrzol and trinexapac-ethyl application on morphological and physiological characteristics of rosemari and thuja “Morgan” as two hedge plants. Immediately after pruning, foliar spray was applied on each plant with 1000 and 4000 mg/l of paclobutrzol or 1000 mg/l of trinexapac-ethyl. Distilled water was used as control. Measured traits were included plant height and width, wet and dry weight of pruned parts, internode elongation, proline content, chlorophyll a, chlorophyll b and total chlorophyll content. Results indicated that growth retardants decreased plant height and width, wet and dry weight of pruned parts and internode elongation, while they increased proline content, chlorophyll a, chlorophyll b and total chlorophyll content as compared to the control plants.

کلیدواژه‌ها [English]

  • hedgeing plant
  • Paclobutrazol
  • trinexapac-ethyl
Abasyhe, S., etemadi, N. & Naderi, D. (2001). Effect Trinexapac on chlorophyll content and character of shoots of perennial grass (Lolium perenne L.). In: Proceedings of 6th National Conference New Ideas. pp. 1-4. (in Farsi)
Adelson, F., Oliveira, D., Maria, O. & Dili, L. (2012). Paclobutrazol in olive trees under different water levels. Journal of Ciencias Agrarias Londrina, 33(6), 2137-2148.
Ahmadzade, M.R. & CaramRostami, A. (2012). Application of Paclobutrazol (PP333) in Horticultural Science. Journal of Scientific and Technical Olives, 2-7. (in Farsi)
AlikhaniFard, M. & Esfahani, M. (2010). Effect Consumption of Tricyclazole on reducing waterlogging in rape seedlings. Journal of Crop Production, 3(1), 73-88. (in Farsi)
Alizadeh, A. (2008). Relationship between soil and plant. Publications Astan QudsRazavi. (in Farsi)
Amina, A. & Hanan, H.L. (2011). Differential effects of paclobutrazol on water stress alleviation through electrolyte leakage, phytohormones, reduced glutathione and lipid peroxidation in some wheat genotypes  grown in-vitro. Journal of Romanian Biotechnological Letters, 16(6), 6710-6721.
Bably, S. & Zaky, A. (2009). Efficacy of paclobutrazol on the growth and flowering of Jacobinia carnea. Journal ofBulletin of the Faculty Agriculture, 60(2), 236- 240.
Beasley, J.S., Branham, B.E. & Spomer, L.A. (2007). Plant growth regulators alter Kentucky bluegrass canopy leaf area and carbon exchange. Journal ofCrop Science, 47, 757-766.
Berova, M., Zlatev, Z. & Stoeva, N. (2002). Effect of paclobutrazol on wheat seedling under low temperature stress. Journal of Plant Physiology, 28(1), 75-84.
Ervin, E. H. & Zhang, X. (2007). Influence of sequential trinexapac-ethyl applications on cytokinin content in creeping bentgrass, kentucky bluegrass, and hybrid bermudagrass. Journal of Crop Science, 47, 2145-2151.
Gray, J. & Olive, J.W. (2005). effects of primo on selected bedding and woody landscape plants. Journal of Environ Horticulture, 16(1), 11-14.
Golparvar, A., HamidiHrvan, A. & Darvish, F. (2004). Genetic analysis of morphological traits in bread wheat under drought conditions. Journal of Research and Development in Agriculture and Horticulture, 62, 95-90.  (in Farsi)
Gopi, R., Sridharan, R., Somasundaram, R., Alagu lakshmanan, G.M. & Panneerselvam, R. (2005). Growth and photosynthetic characteristics as affected by triazoles in Amorphophallus campanulatus.Journal ofPlant Physiology, l31, 171-180.
Gopi, R., Cheruth, A. J., Azooz, M. & Panneerselvam, M. (2009). Photosynthetic alterations in Amorphophallus campanulatus with Triazoles Drenching. Journal of Molecular Sciences, 4(1), 15-18.
LaeeghKhadivaki, S. H., Lahooti, M. & Abbasi, F. (2010). Comparison of the effects of drought stress on proline changes in Nvrvzk plant (Salvia leriifolia) in soil and invitro medium. Journal of Biological Sciences, 4(1), 105-115. (in Farsi)
Laszlo, S. & Arnould, S. (2010). Proline: a multifunctional amino acid. Journal ofTrends in Plant Science, 15(2), 89-97.
Mamnpoosh A.R. & TofangSaz, R. (2008). Assessment and spatial analysis of landscaping in the city during 2007 and 2013 by satellite imagery and GIS. In: Proceedings of 3rd National conference of green space and urban landscape, pp. 292-300. (in Farsi)
Mardani, H., Bayat, H. & Azizi, M. (2011). Effect of spraying a solution of salicylic acid on morphological and physiological characteristics seedlings of cucumber (Cucumis sativa cv. SuperDominus) under drought stress. Journal of Horticultural Science, 25(3), 320-326. (in Farsi)
Maddox, V., Byrd, V. & Serviss. B. (2010). Identification and Control of Invasive Privets (Ligustrum spp.) in the Middle Southern United States. Journal of Invasive Plant Science and Management, 3, 482-488.
Nazarudin, A. (2012). Plant growth retardants effect on growth and flowering of potted hibiscus rosa-sinensis L. Journal of Trop Plant Physiology, 4, 29-40.
Shahrokhshahi, M., Tehranifar, A., Hadizadeh, H. & Selahvarzi, Y. (2011). Effect drought stress and paclobutrazol-treated seeds on physiological response of Festuca arundinacea L. master and Lolium perenne L. Barrage. Journal of Environmental Biology, 5(14), 77-85.
Sopher, C.R., Krol, M., Huner, N.P., Moor, A.E. & Fletcher, R.A. (1999). Chloroplastic changes associated with paclobutrazol–induced stress protection in maize seedling .Canadian Journal of Botany, 77, 297-290.
Taban, M. (2011). Ornamental trees and shrubs and their resistance to environmental stresses in the green space. Today's Literature Publishing House. (in Farsi)
Tahmasebi, L. (2001). Effects of salinity and some growth inhibitors on morphological and biochemical and chemical traits Pistachio badami. M.Sc. thesis. Bahonar University, Kerman. (in Farsi)
Thetford, M. & James, B. (2000). Response of five woody landscape plants to primo and pruning.   Journal of Horticultural Research Institute, 18(3), 132-136.
Hadizadeh, H., Thranyfar, A., Shore, M. & Neamati, S.H. (2010). Study the effect of dwarfing of Paclobutrazol on tuberos flower (Polianthes tuberose L.) and production facilities to the pot. Journal of Horticultural Science, 24(1), 7-13. (in Farsi)
Hazraika, B.N. (2003). Acclimatization of tissue-cultured plants. Journal of Current Science, 85, 12-25.
Hojati, M., Etemadi, N. & Baninasab, B. (2010). Effect Paclobutrazol and Cycocel on vegetative growth and flowering Coneflower. Journal of Horticultural Science, 24(2), 122-127. (in Farsi)
Hojati, M., Etemadi, N. & Baninasab, B. (2009). Effect Paclobutrazol and Cycocel on vegetative growth and flowering Zinnia (Zinnia elegans). Journal of Science and Technology of Agriculture and Natural Resources, 13(47), 649-654. (in Farsi)
Jafari, S.R., Kalantari, Kh. & Trkzadh, M. (2006). Effects of Paclobutrazol on increasing cold resistance of tomato seedling. Journal of Iranian Biology, 19(3), 290-298. (in Farsi)
Wade, G.L. & Daniels, S.D. (1986). Effects of five plant growth regulators on shoot growth of four woody ornamentals after pruning. In: Proceedings of 31st Conference Nurserymens Association. pp.190-194.