Effect of different levels of NaCl and CaCl2 on growth and leaf, branch and root elements of Populus euphratica cutting

Document Type : Research article

Authors

1 Member of Scientific Board, Research Institute of forests and Rangelands (RIFR) E-mail:daneshvar@rifr-ac.ir

2 Forest Expert, Faculty of Natural resources of Guilan University

Abstract

Salinity limits production of agricultural and natural resources crops of the world. Plant production decreases in areas containing saline soils or irrigated with saline water. Because most soils in arid and semiarid areas are alkaline and saline and Populus euphratica Oliv is a well-adapted plant in such soils, identification of its tolerance salinity is very import, particularly in Iran. In order to evaluate the effect of salinity on growth and chemical composition of leaves, stems and roots, a glasshouse trial was conducted, using statistical design of randomized complete blocks (RCBD) with three replicates. The rooted cuttings of P. euphratica were inserted in Hogland soil-less culture and after 15 days were treated with five leaves of NaCl and CaCl2 (0, 0.27, 0.54, 0.81 and 1.08% or 1.3, 6.1, 10.5, 13.5 and 18 ds/m) at 4: 5 ratio, respectively. The measured variables were survival, leaf appearace, height, leaf number and area, dry weight of leaves, stem and roots, and percentage of Na+, Cl -, Ca++, Mg++, K+ and N - at leaves, stem and roots. The results showed that salinity did not significantly affect leaf and stem dry weight at 6 ds/m of salinity but over 6 ds/m the root dry weight decreased significantly. Althoush leaf number decreased significantly by increase in saline levels, but root dry weight and seedling's height have not been influenced by salinity, significantly. Increase in saline levels, increased N- and K+ in leaves and Na+, K+, Mg++ and Cl- in branches. The root elements have not been influenced by salinity, except Cl-.

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- افتخاری ،م.،1374. بررسی مقایسه ای مشخصات ساختمانی، فیزیکی، شیمیایی چوب پده در مناطق ساوه، تفرش. پایان نامه کارشناسی ارشد دانشگاه گرگان، 178 صفحه.
- پاک پرور، م. و ابطحی ،م .، 1380.تعیین مناطق تحت اثر بیابان زائی با پردازش داده‌های ماهواره‌ای الف- بررسی روند تغییرات شوری خاک. تحقیقات مرتع و بیابان (5) شماره 275.
- ثابتی ،ح .، 1355. جنگلها ،درختان و درختچه‌های ایران. انتشارات سازمان تحقیقات کشاورزی و منابع طبیعی، 810 صفحه.
- سرمدیان، ف .،1371. خاکهای مناطق خشک ایران. مجموعه مقالات سمینار بررسی مسائل مناطق بیابانی و کویری ایران. انتشارات دانشگاه تهران: 811-800 .
- دانشور، ع.، 1379. اثر تنش شوری و خشکی بر رشد و میزان عناصر برگ گونه‌های مختلف بادام. پایان‌نامه کارشناسی ارشد جنگلداری، دانشگاه علمی و کاربردی امام خمینی، 110 صفحه.
-کلاگری، م .، 1383. بررسی تغییرات اکولوژیکی و ژنتیکی پده در رویشگاههای طبیعی ایران. پایان نامه دکتری جنگلداری دانشگاه تربیت مدرس. 143 صفحه.
-گونجر، آ.، 1374. کویرزدایی. چگونه مردم کویر می‌سازند، چگونه می‌توان آن را متوقف کرد. ترجمه عبدالمجید ثابتی، انتشارات دانشگاه شیراز، شماره 228، 169 صفحه.
-ویارت، م.، 1373. نگرشی کوتاه بر خصوصیات گونه پده. ترجمه احمد همتی و مدیر رحمتی، انتشارات موسسه تحقیقات جنگلها و مراتع شماره110،13 صفحه.
-Bekerson, D.W., and Nancy, C., 1980. A guide to plant sensitivity to environmental strees. Lanscape architecture, May 99-303.
-Chapman, H.D., and Pratt., 1961. Methods of analysis for Soil, Plant and water. University of California. Division of agricultural Science, 309 p.
-Divate, M.R., 1974. Phsiological basis of salt tolerance of grape. Ph. D. thesis. TRRT New Delhi
- Korolewski, P., 1989. Free proline content and susceptibility of Poplar cuttings to action of  SO2, Nacl and PEG at different temperatures. Environmental pollution. 57, (49): 307-315.
-Kearney, T.H. and Scofield, C.S., 1936. The choice of crop for saline lands. U.S. Dep. Agric. Circ. 404. 24p
- Lin, CW., 1963. Preliminary study on the introduction of Populus euphratica on saline soil of the coastal Region of N China. Silvate, Peking 8 (3), 9: 248-255.
-Lindsay, E., and Fung, W. S., 1996a. Effect of NaCl on three Poplar genotypes I.Growth responses. 20th  session of the international Poplar commission in Budapest –Hungry 563-571.
-Lindsay, E., and Fung, W.S., 1996b. Effect of NaCl on three Poplar genotypes II. uptake Cl, Na, K, Ca Ions responses. 20th session of the international Poplar commission in Budapest –Hungry. 572-578.
- Schatman, D., and Tyermann, S., 1991. The K/Na selectivity of cation chanal in the plasma membrance of root cells differ in salt tolerant and salt sensitive Species. J. Plant Phsiology. 143: 21-26.
-Stettler, R.F. and Bradshow, H.D., 1996. Biology of Populus and its implications for management and concervation. NRC of Canada Monograph Publication. 423-449.
-Viart, M, Sep.1988.Mini monograph on Populus euphratica. International Poplar Commission 110: 13p.
-Yadava, RB., 1995. Effect of soil salinity and solicity on growth and mineral nutrition of some Poplar clones. Indiana-Forester, 1210, (4): 283-288.