TY  - JOUR

AU  - Ansari, O.
AU  - Azadi, M.S.
AU  - Sharif-Zadeh, F.
AU  - Younesi, E.

T1  - Effect of Hormone Priming on Germination Characteristics and Enzyme Activity of Mountain Rye (Secale montanum) Seeds under Drought Stress Conditions

JO  - Journal of Stress Physiology & Biochemistry

Y1  - 2013

VL  - 9

IS  - 3

SP  - 61

EP  - 71

UR  - http://www.jspb.ru/issues/2013/N3/JSPB_2013_3_61-71.pdf


KW  - Hormone priming
KW  - Seed germination
KW  - Drought stress
KW  - Enzyme activity
KW  - Secale montanum





N1  - Owner: Алексей

N1  - Added to JabRef: 2013.07.16

N2  - Seed  priming  techniques  have  been  used  to  increase  germination,  improve  germination uniformity and seedling establishment under stressed conditions. Seed priming was used in Rye  Mountain  (Secale  montanum)  to  increase  seed  germination  and  tolerance  on  stress exposure.  Rye  seeds  were  treated  with  various  priming  agents  for  different  time  and temperatures.  The  effect  of  priming  was  assessed  on  germination  characteristics  on subsequent exposure to drought (PEG -14 bar) stress for 7 days. Seed priming treatments significantly (p≤ 0.01) affected, Germination percentage (GP), normality seedling percentage (NSP), germination Index (GI),  germination uniformity (GU), means time to germination (MTG), coefficient of velocity of germination (CVG),  seedling vigour index (SVI) and coefficient of allometry(AC). Seed priming with gibberelic acid (GA) and salicylic acid (SA) (p≤ 0.01) increased germination  characteristics  as  the  compared  to  the  unprimed.  Seed  priming  with concentrations 25, 50 ppm of GA for 15 h at 10 ◦C and 25 ppm of SA for 12 h at 10 ◦C,  may be considered as optimal treatment for priming of  Secale montanum seeds in drought stress conditions. Also priming increased catalase (CAT) and ascorbate peroxidase (APX) as compared to the unprimed.

ER  -