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Study of seed germination problems in Dendrostellera lessertii Van Tiegh | ||
| تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران | ||
| Article 6, Volume 13, Issue 3 - Serial Number 21, October 2006, Pages 285-294 PDF (367.55 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijrfpbgr.2005.115162 | ||
| Authors | ||
| M. Ghorbanli1; A. Ghamari Zare2; S. Hosseini3 | ||
| 1Gorgan Islamic Azad University, Gorgan, Iran | ||
| 2Research Institute of Forests and Rangelands, P.O. Box 13185-116, Tehran, Iran. | ||
| 3Payame Noor University, Tehran, Iran. | ||
| Abstract | ||
| Dendrostellera lessertii is a bushy plant, growing in rangelands of Iran. This is not a plant species for grazing, because of unplatability. Its leaf extraction contains toxic substances which prevents progressive division of canceral cells. The pure leaves extraction of D. lessertii affects on alkaline phosphase enzyme of four types of human canceral cells. It is necessary to know its reproduction potential through seed germination. The seeds of D. lessertii were collected from rangelands of Isfahan and Markazi provinces of Iran in 2002. A range of treatments, including prechilling, KNO3 0.2%, GA3 100 and 200 PPM, H2SO4 95%, potting sand and control were performed. Seeds were disinfected with Vitavacs solution for 10 min. against surface infections. The germination experiment was carried out at two temperature treatments, constant (25ºC) and alternative (15- 20ºC) temperatures. Seed germination percentage was analysed in a randomized complete blocks design and the means were compared with Duncan tests at α = 5%. The best treatment for germination was sulfuric acid (95%) for 5 minuets. Germination difficulties may be caused by hard seed coat which may be overcome by chemical or mechanical scarification processes. It should be noted that hard seed is necessary for protecting such species in a harsh area such as arid and semi–arid environment in Iran. | ||
| Keywords | ||
| Dendrostellera lessertii; Medicinal; Plant germination; Prechilling and Scarification | ||
| References | ||
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اخیانی، خدیجه 1374. فلور ایران تیره مازریون. شماره 15، مؤسسه تحقیقات جنگلها و مراتع، تهران، ایران. زرگری، علی 1369. گیاهان دارویی. جلد چهارم، چاپ و انتشارات دانشگاه تهران، ایران. علیزاده، محمدعلی و حمید‌رضا عیسوند 1380. بررسی درصد جوانه‌زنی، سرعت تجمعی جوانه‌زنی و شاخص بنیه بذر 9 گونه دارویی تحت شرایط آزمایشگاهی مطلوب و پیش سرما. تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران (7)، انتشارات مؤسسه تحقیقات جنگلها و مراتع، تهران، ایران. نصیری، محسن و حمید رضا عیسوند 1380. بررسی اثر اسید سولفوریک بر شکستن خواب و جوانه‌زنی بذرهای شب خسب و خرنوب. تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران (8)، انتشارات مؤسسه تحقیقاتی جنگلها و مراتع، تهران، ایران.
Dais SC, P.H. 1970 Flora of Turkey and the Eat Aegean Islands. Edinburgh University Press. Ellis, R.H., Hong, T.D. and Roberts, E.H. 1985. Hand Book of Seed Technology for Gene Bank. V. 2. P, 475. Rome. International board for plant genetic resources. Mayer, A.M. and Poljakoff–Mayber, A. 1989. The Germination of Seeds. Fourth Edition, Pergamon Press, London. Qamaruddin, M. 1991. Appearance of the zeatin riboside type of cytokine in Pinus sylvestris seeds after red light treatment. Scand. JF or Res, 6:41-46. Sadghi, H., Yazdanparast, R., Smith, D.L. 2002. Isolation and structure elucidation of a new potent antineophastic diterpene from Dendrostellera lessertii. | ||
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