test Browse by Author Names Browse by Titles of Works Browse by Subjects of Works Browse by Issue Dates of Works
       

Advanced Search
Home   
 
Browse   
Communities
& Collections
  
Issue Date   
Author   
Title   
Subject   
 
Sign on to:   
Receive email
updates
  
My Account
authorized users
  
Edit Profile   
 
Help   
About T-Space   

T-Space at The University of Toronto Libraries >
University of Toronto at Scarborough >
Bioline International Legacy Collection >
Bioline International Legacy Collection >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/5388

Title: OPTIMIZATION OF HORMONAL PRIMING TECHNIQUES FOR ALLEVIATION OF SALINITY STRESS IN WHEAT (TRITICUM AESTIVUM L.)
Authors: Afzal, Irfan
Basra, Shahzad Maqsood Ahmad
Ahmad, Nazir
Farooq, Muhammad
Keywords: Hormonal Priming, salinity tolerance, seedling vigor, wheat seed.
Priming hormonal, tolerância a salinidade, vigor de plântulas, sementes de trigo.
Issue Date: 31-Dec-2005
Publisher: Universidade de Santa Cruz do Sul
Citation: Caderno de Pesquisa série Biologia (ISSN: 1677-5600) Vol 17 Num 1
Abstract: An experiment was conducted to examine the effect of hormonal priming with abscisic acid (ABA), salicylic acid (SA), or ascorbic acid on wheat (Triticum aestivum   cv. Auqab-2000) germination and seedling growth under normal (4 dS/ cm) and saline (15 dS/cm) conditions. During emergence test, emergence percentage was significantly increased by ascorbic acid and salicylic acid seed treatments but mean emergence time (MET) was unaffected by all priming treatments, however, root and shoot length, fresh and dry weight of seedlings were significantly increased by 50 ppm ascorbic acid and 50 ppm salicylic acid treatments under both normal and saline conditions. Priming with ABA failed to improve seedling growth under both conditions. But all hormonal priming treatments decreased the electrolyte leakage of steep water as compared to that of non-primed seeds even after 12 h of soaking. Hormonal priming with 50 ppm SA induced maximum decrease in electrolyte leakage while an increase in electrolyte leakage was observed by 10 ppm ABA and 100 ppm ascorbic acid. It is concluded that hormonal priming has reduced the severity of the effect of salinity but the amelioration was better due to 50 ppm SA and 50 ppm ascorbic acid treatments as these showed best results on seedling growth, fresh and dry weights under non-saline and saline conditions whereas hormonal priming with ABA as not effective in inducing salt tolerance under present experimental material and conditions.
URI: http://hdl.handle.net/1807/5388
Other Identifiers: http://www.bioline.org.br/abstract?id=cp05010
Rights: Copyright 2005 - Universidade de Santa Cruz do Sul
Appears in Collections:Bioline International Legacy Collection

Files in This Item:

File Description SizeFormat
cp05010.pdf98.21 kBAdobe PDF
View/Open

Items in T-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

uoft