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اثر هرس ریشه بر فیزیولوژی و مورفولوژی نهال ارس (Juniperus excelsa M.Bieb.) | ||
| نشریه جنگل و فرآورده های چوب | ||
| مقاله 16، دوره 68، شماره 3، آبان 1394، صفحه 685-697 اصل مقاله (721.69 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jfwp.2015.55598 | ||
| نویسندگان | ||
| هادی درودی* 1؛ ابراهیم خسروجردی2؛ معصومه شهابی3 | ||
| 1دانشجوی دکتری، گروه جنگل‌داری دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس، نور، ایران | ||
| 2استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی، مشهد، ایران | ||
| 3کارشناس ارشد مدیریت بیابان، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران | ||
| چکیده | ||
| بهمنظور بررسی اثر هرس ریشه بر ویژگیهای فیزیولوژیکی و مورفولوژیکی نهال‌های ارس، آزمایشی روی نهال‌های یکسالة بازکاشتی آن انجام گرفت. تیمارهای اعمال‌شده شامل شدت هرس ریشه (1. هرس ملایم (حدود 8 سانتی‌متر انتهایی ریشه قطع شد)؛ 2. هرس شدید (حدود 15 سانتی‌متر انتهایی ریشه قطع شد)؛ 3. شاهد (بدون هرس ریشه)) بوده است که در قالب طرح کاملاً تصادفی انجام شد. هر تیمار شامل سه تکرار و هر تکرار شامل 20 نهال است (در‌مجموع 180 نهال). نتایج بررسیها نشانداد که هرس ریشه موجب بهبود کیفیت نهال، رشد ریشه و افزایش زندهمانی نهال‌ها شد. نتایج همبستگیها نشاندادند که طول ریشه، قطر ریشه، بیوماس ریشه، بیوماس ساقه و بیوماس کل با شاخص کیفی نهال همبستگی معناداری دارند. با افزیش این عوامل، کیفیت نهال بهبود مییابد. همچنین، نسبت بیوماس ریشه به ساقه رابطة مثبت معناداری با زندهمانی نهال‌ها دارد. زندهمانی نهال‌ها با افزایش نسبت ریشه به ساقه بهبود یافته است. با توجه به نتایج این تحقیق میتوان عنوان کرد که ریشة نهال‌های ارس از هرس‌پذیری خوبی برخوردارند و هرس ریشه، موجب بهبود وضعیت کیفی نهال‌های ارس میشود. همچنین، با توجه به اینکه بین شاخص کیفی نهال‌ها و قطر یقة آن‌ها همبستگی به‌نسبت قوی وجود دارد و از طرفی سایر مشخصههای مهم از قبیل طول ریشه و بیوماس ریشه برای اندازه‌گیری مشکل است، میتوان گفت که قطر یقه، شاخص مناسبی برای طبقهبندی کیفی نهال‌های ارس در نهالستان است. | ||
| کلیدواژه‌ها | ||
| : ارس؛ زندهمانی؛ مورفولوژی؛ هرس ریشه | ||
| عنوان مقاله [English] | ||
| Effect of Root Pruning On Physiology and Morphology of Greek Juniper Seedlings (Juniperus Excelsa M. Bieb.) | ||
| نویسندگان [English] | ||
| Hadi Darroudi1؛ Ebrahim Khosrojerdi2؛ Masoumeh Shahabi3 | ||
| 1Ph.D Student, Department of Forestry, Faculty of Natural Resources, Tarbiat Modares University, Nour, I.R. Iran | ||
| 2Assistant Professor of Agriculture And Natural Resources Research Center of Khorasan Razavi Province, Mashhad, I.R. Iran | ||
| 3M.Sc. Graduated student of Arid zone management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, I.R. Iran | ||
| چکیده [English] | ||
| In order to investigate the effect of root pruning in morphological and physiological characteristics of Juniperus excelsa seedlings an experiment was carried out on transplanted one year-old seedlings. Treatments included root pruning intensities (1-slight pruning (2-moderate pruning and 3- control (no root pruning)) .Experiment design was completely randomized design. Each treatment included three replicates and each replicate included 20 seedlings (in total 180 seedlings). The results showed that root pruning improved the quality and growth of root and seedlings survival. Results indicated that root pruning enhanced seedling quality index of J. excelsa seedlings and had a good capability for pruning. Root length, root diameter, root biomass, shoot biomass and total biomass were significantly correlated with habitat quality index which increasing these factors improves plant quality. The ratio of root to shoot biomass and total biomass was significantly correlated with plant survival. Survival was improved by increasing these factors. Also, according to high correlation between quality index and root collar diameter and on the other hand, another characteristics such as root length, root biomass is so hard to identification, root collar diameter is suitable index for qualitative classification Juniperus excelsa seedlings in nurseries. | ||
| کلیدواژه‌ها [English] | ||
| Juniperus excelsa, Morphology, root pruning, Survival | ||
| مراجع | ||
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[1]. Azadbakht, B., and Norouzi, Gh. (2009). Geography of Iran Waters, National Geographical Organization, Ministry of Defense Press, Tehran, 302p.
[2]. Korouri, S., and Khoshnevis, M. (2001). Ecological and Environmental Studies of Iranian Juniper Habitats, Research Institute of Forests and Rangelands press, Number 229, 208 p.
[3]. Zue. L.G., Yan, P., and Jian, X.Y. (2012). Research on techniques for root control of container seedlings in China and Abroad. Journal of Eucalypt Science & Technology. 29(2): 47-52.
[4]. Mohamed, E. A. (2013). Growth performance and physiological characteristics of seedlings of six tropical dry land forest tree species in the Sudan. Journal of Natural Resources and Environmental Studies, 1(2): 25- 33.
[5]. Grossnickle, S. C. (2005). Importance of root growth in overcoming planting stress. New Forests Journal, 30:273–294.
[6]. Gazal, R. M., and Kubiske, M. E. (2004). Influence of initial root characteristics on physiological responses of Cherrybark oak and Shumard oak seedlings to field drought conditions. Journal of Forest Ecological Management, 189, 295–305.
[7]. Davis, A. S., and Jacobs, D. F. (2005). Quantifying root system quality of nursery seedlings and relationship to outplanting performance. Journal of New Forests, 30:295–311.
[8]. Bigras F.J., and D’Aoust, A. L. (1993). Influence of photoperiod on shoot and root frost tolerance and bud phenology of white spruce seedlings (Picea glauca). Canadian Journal of Forest Researches, 23: 219–228.
[9]. Sagheb Talebi, Kh., Hemati, A., Khanjani Shirazi, B., Siahipour, Z., and Akbarzadeh, A. (2009). Architectural model and impact of root pruning on diameter and height growth of Oak (Quercus castaneifolia) seedlings (Pilambara_Guilan). Journal of Iranian Natural Resources, 61(4): 867-876.
[10]. Ghalichkhani, M., Tabari, M., Akbarinia, M., Espahbodi, K., and Jalali, Gh. (2006). Surveying of light intensity and root pruning on survival and vitality of Quercus castaneifolia. Journal of Pajouhesh va Sazandegi in Natural Resources, 69: 82-86.
[11]. Kiani, B., Rostami Shahraji, T., and Taheri, F. (2006). Study of rooting capability of Pinus taeda in bare root and pot conditions. Iranian Journal of Natural Resources, 58(2): 333-338.
[12]. Buse, L. J., and Day, R. J. (1989). Conditioning three boreal conifers by root pruning and wrenching. Tree Planters Notes, Spring: 33- 39.
[13]. Andersen, L., Rasmussen, H. N., and Brander, P. E. (2000). Regrowth and dry matter allocation in Quercus robur (L.) seedlings root pruned prior to transplanting. New Forests Journal, 19: 205–213.
[14]. Andersen, L. (2001). Survival and growth of Fagus sylvatica seedlings root-pruned prior to transplanting under competitive conditions. Scandinavian Journal of Forest Research, 16:4. 318 – 323.
[15]. Aldrete, A., Mexal, J. G., Phillips, R., and Vallotton, A. D. (2002). Copper coated polybags improve seedling morphology for two nursery-grown Mexican pine species. Journal of Forest Ecology and Management, 163: 197–204.
[16]. Tsakaldimi, M. N., and Ganatsas, P. P. (2006). Effect of chemical root pruning on stem growth, root morphology and field performance of the Mediterranean pine Pinus halepensis Mill. Scientia Horticulturae Journal, 109: 183–189.
[17]. WeiGui, D., Zeng, F, J., Liu, Z., and Zhang, B. (2013). Root characteristics of Alhagi sparsifolia seedlings in response to water supplement in an arid region, northwestern China. Journal of Arid Land, 5(4): 542−551
[18]. Carlson, W. C., and Miller, D. E. (1990). Target seedling root system size hydraulic conductivity and water use during seedling establishment. Proceedings, Combined Meeting of the Western Forest Nursery Association’s Target Seedling Symposium. Pp: 79-90.
[19]. Barden, C. J., and Bowersox, T. W. (1989). The effect of root pruning treatments on red oak seedling root growth capacity. In: Seventh central hardwoods forest conference. March 5-8 Carbondale.
[20]. Ritchie Gary, A., and Tanaka, Y. (1990). Root growth potential and the target seedling. national nursery proceedings. In: Proceedings, Combined Meeting of the Western Forest Nursery Association’s Target Seedling Symposium, Pp: 37-51.
[21]. Durey, M. L., and Landis, T. S. D. (1994). Forest Nurseries Manual, Production of Bare roots Seedlings. Martinus Nijhoff / Dr. W. junk Publishers. 384 p.
[22]. Tan, W., Blanton, S., and Bielech, J. P. (2008). Summer planting performance of white spruce 1 + 0 container seedlings affected by nursery short-day treatment. New Forests, 35:187–205.
[23]. Chapman, W. K. (1991). Inoculation of Ectomycorrhizal Fungi in the IDFdk2 Biogeoclimatic Zone of British Columbia: New Techniques, Fungi and Outplanting Trials, PhD thesis, University of British Columbia, Vancouver, Canada, 187 p.
[24]. Jaenicke, H. (1999). Good Tree Nursery Practices, Practical Guidelines for Research Nurseries, ICRAF, Nairobi, Pp: 8–15.
[25]. Deligoz, A. (2012). Morphological and physiological differences between bareroot and container Juniperusexcelsa seedlings. Turkish Journal of Agriculture and Forestry, 36: 619-628.
[26]. Hitch, K.L., Shiver, B.D., and Borders, B.E. (1996). Mortality models for newly regenerated loblolly pine plantations in the Georgia Piedmont. Southern Journal of Applied Forestry, 20: 197–202.
[27]. South, D.B., Harris, S.W., Barnett, J.P., Hainds, M.J., and Gjerstad, D.H. (2005). Effect of container type and seedling size growth of Pinus palustris seedlings in Alabama, U.S.A. Journal of Forest Ecology and Management, 204: 385–398.
[28]. Navarro, R, M., Retamosa, M, J., Lopez, J., Del Campo, A., Ceaceros, C., and Samoral, L. (2006). Nursery practices and field performance for the endangered Mediterranean species Abies pinsapo Boiss. Ecological Engineering Journal, 27: 93–99.
[29]. Robinson, D.E., Wagner, R.G., and Swanton, C.J. (2002). Effects of nitrogen on the growth of Jack pine competing with Canada blue-joint grass and large-leaved aster. Journal of Forest Ecology and Management, 160: 233-242.
[30]. Grossnickle, S.C., Major, J.E., Arnott, J.T., and Lemay, V.M. (1991). Stock quality assessment through an integrated approach. New Forests Journal, 5: 77–91. | ||
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