evaluation of germination parameters of scrophularia striata under water and salinity stresses at different temperatures

نویسندگان

بهرام کاروانی

دانشجوی کارشناسی ارشد علوم و تکنولوژی بذر، پردیس کشاورزی و منابع طبیعی دانشگاه تهران رضا توکل افشاری

استاد گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران ناصر مجنون حسینی

استاد گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران سید امیر موسوی

گروه زراعت، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس

چکیده

germination stage is an important stage of plant growth stage that often is affected by environmental stress including water and salinity stresses including drought and salinity. in order to study germination characteristics of scrophularia striatain water and salinity stress conditions at different temperatures an experiment was conducted. temperatures regimes included 5, 10, 15, 20, 25, 30 and 45°c. for each temperature the treatment, for salinity and water stress was seven potentials (zero, -2, -4, -6, -8, -10 and -12 bar) of nacl and seven potentials (zero, -2, -4, -6, -8, -10  and -12 bar) of peg. results showed that increasing water and salinity stress decreased significantly germination rate, germination percentage, plumule and radicle length. the minimum decrease of germination characteristics in stress was observed at 25°c. results showed that optimum temperature for this plant is 28.69°c.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Study of Germination and Seedling Growth Parameters of Three Clover Species (Trifolium spp.) under Drought and Salinity Stresses

DOR: 98.1000/2383-1251.1398.6.145.11.1.1575.1610 Extended Abstract Introduction: Agriculture has been influenced by different abiotic stresses such as temperature, drought and salinity, which reduces roughly half of the yield of crops. In many forage plants, germination and early seedling growth are the most sensitive stages of their growth in the face of environmental stresses. Current r...

متن کامل

Evaluation of salinity tolerance of different clover species at germination and seedling stages

In order to study the effects of salinity stress on growth indices of three clover species including, Trifolium resupinatum, T. alexandrinum, and T. incarnatum, an experiment was conducted as factorial based on a completely randomized design arrangement with three replications. Factors included seven levels of salinity stress (0, 41, 82, 123, 164, 205, and 246 mM) and three clover species. Diff...

متن کامل

evaluation of germination behavior of kochia seed (kochia scoparia l. schard.), under different temperatures and salinity stress levels

kochia (kochia scoparia l. schard) is an annual, halophyte and drought resistant plant that can be irrigated with saline water and a valuable source for forage under drought and saline ecosystem. in order to evaluate the germination characteristic of kochia under different temperatures and salinity stress levels, an experiment was conducted at physiology lab of ferdowsi university of mashhad, i...

متن کامل

germination and seedling growth of safflower under different salinity levels of sodium chloride at different temperature

to evaluate germination and seedling growth of safflower an experiment carried out as factorial with two factor; temperature (5, 15, and 25 °c) and salinity of sodium chloride (0, 5, 10, and 15 ds/m) based on randomized complete block design with four replications, in dept. of horticulture of urmia university. results of different concentration sodium chloride on germination and seedling growth...

متن کامل

Investigation of Volumetric and Acoustic Properties of Ionic Liquid + Amino Acid + Water Systems at Different Temperatures

This paper reports density and speed of sound data for solutions of the ionic liquids (ILs) [C4mim]Cl and [C4mim][CF3SO3] in aqueous solution of 0.05 w/w amino acids of alanine, serine and proline at T = (288.15, 298.15, 308.15 and 318.15) K. From the experimental data measured, the apparent molar volume (Vϕ), isentropic compressibility ( ), and apparent molar isentropic compression ( ) have be...

متن کامل

effects of salinity on seed germination indices of blond plantain (plantago ovata) at different temperatures

in many studies, the medicinal properties and impact of blond plantain on mechanisms of human physical activities has been proven. salinity is an important abiotic stresses with detrimental effects on seed germination. an experiment was conducted to study germination characteristics of blond plantain under water and salinity stress conditions at different temperatures. the experiment was conduc...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
علوم گیاهان زراعی ایران

جلد ۴۵، شماره ۲، صفحات ۲۶۵-۲۷۵

کلمات کلیدی
[ ' g e r m i n a t i o n s t a g e i s a n i m p o r t a n t s t a g e o f p l a n t g r o w t h s t a g e t h a t o f t e n i s a f f e c t e d b y e n v i r o n m e n t a l s t r e s s i n c l u d i n g w a t e r a n d s a l i n i t y s t r e s s e s i n c l u d i n g d r o u g h t a n d s a l i n i t y . i n o r d e r t o s t u d y g e r m i n a t i o n c h a r a c t e r i s t i c s o f s c r o p h u l a r i a s t r i a t a i n w a t e r a n d s a l i n i t y s t r e s s c o n d i t i o n s a t d i f f e r e n t t e m p e r a t u r e s a n e x p e r i m e n t w a s c o n d u c t e d . t e m p e r a t u r e s r e g i m e s i n c l u d e d 5 ' , 1 0 , 1 5 , 2 0 , 2 5 , ' 3 0 a n d 4 5 ° c . f o r e a c h t e m p e r a t u r e t h e t r e a t m e n t ' , ' f o r s a l i n i t y a n d w a t e r s t r e s s w a s s e v e n p o t e n t i a l s ( z e r o ' , 2 , 4 , 6 , 8 , ' 1 0 a n d ' , ' 1 2 b a r ) o f n a c l a n d s e v e n p o t e n t i a l s ( z e r o ' , 2 , 4 , 6 , 8 , ' 1 0 x a 0 a n d ' , ' 1 2 b a r ) o f p e g . r e s u l t s s h o w e d t h a t i n c r e a s i n g w a t e r a n d s a l i n i t y s t r e s s d e c r e a s e d s i g n i f i c a n t l y g e r m i n a t i o n r a t e ' , ' g e r m i n a t i o n p e r c e n t a g e ' , ' p l u m u l e a n d r a d i c l e l e n g t h . t h e m i n i m u m d e c r e a s e o f g e r m i n a t i o n c h a r a c t e r i s t i c s i n s t r e s s w a s o b s e r v e d a t 2 5 ° c . r e s u l t s s h o w e d t h a t o p t i m u m t e m p e r a t u r e f o r t h i s p l a n t i s 2 8 . 6 9 ° c . ' ]

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023