| تعداد نشریات | 282 |
| تعداد نشریات سازمان | 80 |
| تعداد شمارهها | 3,188 |
| تعداد مقالات | 35,336 |
| تعداد مشاهده مقاله | 51,458,511 |
| تعداد دریافت فایل اصل مقاله | 91,332,006 |
بررسی خصوصیات جوانه زنی بذر مینای پرکپه ناجوربرگ (Tanacetum polycephalum subsp. Heterophyllum) تحت تنش شوری و خشکی در دماهای مختلف | ||
| علوم و فناوری بذر ایران | ||
| مقاله 4، دوره 2، شماره 2 - شماره پیاپی 4، مهر 1392، صفحه 161-171 اصل مقاله (1.51 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| رضا توکل افشاری* 1؛ بهرام کاروانی2؛ ناصر مجنون حسینی3 | ||
| 1استاد دانشگاه تهران، پردیس کشاورزی و منابع طبیعی، گروه زراعت | ||
| 2دانشجوی کارشناسی ارشد دانشگاه تهران، پردیس کشاورزی و منابع طبیعی، گروه زراعت | ||
| 3استاد دانشگاه تهران، پردیس کشاورزی و منابع طبیعی | ||
| چکیده | ||
| به منظور ارزیابی پاسخ خصوصیات جوانه زنی گیاهچه مینای پرکپه ناجوربرگ به تنش خشکی و شوری در دماهای مختلف 7 آزمایش انجام گرفت. دماهای مورد استفاده در این آزمایش 7 سطح دما شامل 5، 10، 15، 20، 25، 30 و 35 درجه سانتی گراد بودند. در هر دما برای ایجاد تنش شوری و خشکی هفت سطح تنش شامل صفر، 2-، 4-، 6-، 8- ،10- و 12- بار کلرید سدیم و پلی اتیلن گلایکول ایجاد شد. نتایج نشان داد که با افزایش تنش شوری و خشکی به طور معنی داری از سرعت و درصــد جوانــه زنــی، طـول ریشه چه و ساقه چه کاسته شد. در تنش شوری در اکثر دماها بجز 20 و 25 درجه سانتی گراد جوانه زنی در 12- بار کلرید سدیم به صفر رسید اما در تنش خشکی در اکثر دماها بجز 20 و 25 درجه در 10- بار و در همه دماها در 12- بار پلی اتیلن گلایکول به صفر رسید. بیشترین درصد و سرعت جوانه زنی در تیمار شاهد ( صفر بار) در دمای 25 درجه سانتی گراد مشاهده شد. نتایج بدست آمده نشان داد که دمای 25 درجه دمای بهینه برای جوانه زنی بذر این گیاه بوده و آستانه تحمل آن 12- بار در تنش شوری و 10- بار در تنش خشکی در این دما می باشد. | ||
| کلیدواژهها | ||
| مینای پرکپه؛ دما؛ جوانه زنی؛ تنش خشکی و شوری | ||
| عنوان مقاله [English] | ||
| The evaluation of germination parameters of Tanacetum polycephalum under simulated drought and salinity stress at different temperatures | ||
| چکیده [English] | ||
| In order to study germination characteristics of Tanacetum polycephalumin water and salinity stress conditions in different temperatures seven laboratories experimental were conducted. Temperatures regimes included 5, 10, 15, 20, 25, 30 and 45 °C. For each temperature, salinity and water stress was used in seven osmotic potential (0, -2, -4, -6, -8, -10 and -12 bar) of NaCl and PEG, respectively. Results of each experimental showed that increasing water and salinity stress decreased germination rate, germination percentage, plumule and radicle length, significantly. In salinity stress, germination percentage in most temperatures except 20 and 25°C in -12 bar of NaCl reached to 0, but in drought stress in most temperatures except 20 and 25°C -10 of PEG reached to 0. The maximum of germination percentage and germination rate was abserved in 0 bar in 25°C. Also maximum toleraance to salinity and drought stress was -12 and 10 bar of NaCl and PEG in 25°C, respectively. Results showed that 25°C is optimum temperature for this plant and it tolerates salinity stress up to -12 bar and water stress up to -10 bar at this temperature | ||
| کلیدواژهها [English] | ||
| Tanacetum polycephalum, temperature, germination, water and salinity stress | ||
| مراجع | ||
|
Akpulat, H. A., B. Tepe, A. Sokmen., D. Daferera and M. Polissiou. 2005. Composition of the essential
oils of Tanacetum argyrophyllum (C.Koch) Tvzel.var. argyrophyllum and Tanacetum parthenium (L.)
Schultz.Bip. (Asteraceae) from Turk. J. Biochem. Syst. Ecol. 33: 511-516. Akohondi, M., A. Safarnejad and M. Lahoti. 2004. Investigation of morphological indexes and genotypes
selection of resistance alfalfa (Medicago sativa L.) in osmosic stress (PEG). (in Persian with English
Abstract) Pajohesh and Sazandegi. 62: 50-57. Baradford, K. J., O. Dahal and B. R. Ni. 1992. Quantitative models describing generation responses to
temperature water potential and growth regulators. Fourth International Workshop Biology. 1: 239-248. Broumand Zadeh, F and A, kocheki. 2005. Evaluation of seed germination response of Ajowan, Fennel to
osmotic and matric potentials due to sodium chloride and polyethylene glycol 6000 at different temperatures, (in Persian with English Abstract). Iranian J. Field Crop Res. 3: 207-213
Chadho, K and G. Rajender. 1995. Advance in Horticulture Medicinal and Aromatic Plants. Maldorta. Publ. New Delhi. Dashti, M., M. Shirdel and H. Zarif Ketabi. 2007. Effects of water stress and salinity on germination and
seedling growth characteristics of Althaea officinalis.Third conference of medicinal plants. Shahed
university. Iran. De, R and R. K. Kar. 1995. Seed germination and seeding growth of mungbean (Vigna radiate) under water
stress induced by PEG 6000. Seed. Sci. Techno. 21:301-308. Dodd, G. L and L. A. Donovan. 1999. Water potential and ionic effects on germination and seeding growth
of two cold desert shrubs. Am. J. Bot. 86: 1146- 1153. Delucia, E. H and W. H. Schlesinger. 1995. Photosynthetic rate and nutrient use effeciency among
evergreen and decidoud shrubs in okefenokee swamp. plant sci. 156 (1):19-28. Ghahraman, A. 1986.color Flora of Iran.Research Institute of Forests and Rangelands Publications Vol 9.No.1091. Hadas, A. 1976. Water uptake and germination to leguminous seeds under changing external water potential
osmotic solution. J. of. Exp. Bot. 27: 480-489. Hosseini, H and C. Rezvani Moghaddam, 2005. Effect of drought and salinity stress on germination of
psyllium (Plantago ovate). (in Persian with English Abstract)Iranian J. Agri. Res. 4: 22-15. Huang, J and R.E. Redman. 1995. Salt tolerance of Hordeum and Brassica species during germination and
early seedling growth. Can. J. Plant. Sci. 75:815-9.
Iraki, S. N., R. A., Bressan and N. C. Carpita, 1989. Cell walls of tobacco cells and changes in
composition saaocited With reduced growh upon updation to water and slain stress. Plant physiol. 91: 48 -53. Isvand. H. R. Tavakkol-Afshari., R. Sharifzadeh., H. Madah Arefi and S. M. Hesamzadeh, 2008. Physiological quality improvement of deteriorated seeds in wheatgrass (Agropyron elongatum Host) by using
hormonal priming for stress and non-stress condition. (in Persian with English Abstract) Iranian Journal of
Field Crop Science. 39: 53-65. Kaboli, M and M. Sadeghi. 2001. Effect of drought stress on germination of three Onobrochis species. (in
Persian with English Abstract) Pajohesh and sazandegi. 64: 51-57. Katergi, N., J. W. Van Hoorn, A. Hamdy, F. Karam, and M. Mastrortilli. 1994. Effect of salinity on
emergence and on water stress early seedling growth of sunflower and maize. Agr Water Manag. 26: 81-91. Kermode, R. 1990. Regulatory mechanism involved in the transition from seed development to germination. Crit Rev Plant Sci. 9: 155-188. Kochaki, A and Z. H, Ketabi. 1996. Determination of optimum temprature of germination on investigation
of salat and drought effecs on some species rangeland (in Persian with English Abstract). J. Desert. 1: 28-30. Lebaschy, M., H, Sharifi Ashourabady, A and Mazaheri, d. 2004. Effects of drought stress on changes
hypericin of Hypericum perforatum. (in Persian with English Abstract) Pajohesh and sazandegi. 58: 52-44. Michel, B. E and M. R. Kaufman. 1973. The osmotic potential of polyethylene glycol 6000. Plant Physio. 51:914-916. Mozaffarian, V. 1996. Dictionary names of Iranian plants. Farhange Maser Publications, Tehran, 753 pages. Omid Beigi, R. 1995. Approaches to processing of medicinal plants. Fekr Rouz Terhran Publications. Iran. Poljakoff-mayber, A., G. F. Somers, E. Werker, and J. I. Gallagher. 1994. Seeds of Kosteletzkya
virginica (Malvacceace), their structure, germination and salt tolerance. Am J bot. 81: 54-59. Reza Zadeh, Z and A, kocheki. 2005. Evaluation of seed germination response of Ajowan, Fennel to
osmotic and matric potentials due to sodium chloride and polyethylene glycol 6000 at different temperatures, (in Persian with English Abstract). Iranian Journal of Field Crop Research. 3: 207-217. Rehman, S., P. J. C. Harris, W. F. Bourne and J. Wikin. 1996. The effect of sodium chloride on
germination and the potassium and calcium contents of Acacia seeds. Seed Sci Tech. 25: 45-57. Sarmadnia, Gh and M. Azizi. 1993. Study on storage time effects on quality indexes of soybean seed. (in
Persian with English Abstract) J. Agr Sci tech. 9:71-91. Sharafi, S. 2007. Evaluate the effect of salinity and drought on seedling traits of Silybum marianum. Third
conference of medicinal plants. Shahed university.Iran. Takel, A. 2000. Seedling emergence and growth of sorghum genotypes under variable soil moisture deficit. Acta Agron. Hung. 48: 95-102. | ||
|
آمار تعداد مشاهده مقاله: 765 تعداد دریافت فایل اصل مقاله: 785 |
||