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Paper Information

Title: 

EVALUATING OF THE GERMINATION AND EARLY GROWTH OF WHEAT (TRITICUM AESTIVUM L.) AND WILD BARLEY(HORDEUM SPONTANEUM KOCH) IN DIFFERENT SALT STRESSES

Type: PAPER
Author(s): HOSSEINI MOJTABA,ZAMANI GHOLAM REZA
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

SALT STRESS IS ONE OF THE MAIN CONSTRUCTIONS FOR PLANT GROWTH AND DEVELOPMENT. IN ORDER TO STUDY THE EFFECTS OF DIFFERENT SAT STRESSES ON GERMINATION AND EARLY GROWTH OF WHEAT (TRITICUM AESTIVUM) AND WILD BARELY (HORDEUM SPONTANEUM) AN EXPERIMENT WAS CONDUCTED IN GROWTH CHAMBER AT THE ADVANCE RESEARCH LABORATORY, FACULTY OF AGRICULTURE, THE UNIVERSITY OF BIRJAND, DURING 2007. EXPERIMENTAL DESIGN WAS COMPLETELY RANDOMIZED DESIGN (CRD) WITH FOUR REPLICATIONS. TREATMENTS WERE FOUR LEVELS OF SALT STRESS (OSMOTIC POTENTIAL) THAT CREATED BY NACL (-0.3, -5, -10 AND -15 BARS AND DISTILLED WATER AS CONTROL). THE RESULTS REVEALED THAT AS INCREASED SALT STRESS PERCENTAGE OF GERMINATION, GERMINATION RATE, SEEDLING FRESH WEIGHT, RADICLE FRESH WEIGHT, PLUMULE FRESH WEIGHT, RADICLE AND PLUMULE LENGTH IN WHEAT AND WILD BARELY DECREASED SIGNIFICANTLY. ORTHOGONAL COMPARISON SHOWED THAT PERCENTAGE OF GERMINATION, GERMINATION RATE AND ROOT LENGTH OF WILD BARELY DECREASED MORE THAN WHEAT. HOWEVER, PLUMULE LENGTH OF WILD BARELY WAS SHORTER THAN THE WHEAT BUT IT WAS NOT SIGNIFICANT. THE THREE-PARAMETER LOGISTIC MODEL PROVIDED A GOOD ESTIMATION FOR RELATIONSHIP BETWEEN SALT STRESS LEVELS AND GERMINATION RESPONSE OF WHEAT AND WILD BARELY. THIS MODEL SHOWED THAT RESPONSE OF GERMINATION AND EARLY GROWTH OF WILD BARELY TO SALT STRESS, WERE MORE SENSITIVE THAN THE WHEAT.

 
Keyword(s): GERMINATION, SALT STRESS, WHEAT, WILD BARELY
 
 
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