Paper Information

Title: 

RELATIVE FITNESS OF RESISTANT AND SUSCEPTIBLE LOLIUM RIGIDUM BIOTYPES TO ACCASE INHIBITING HERBICIDES IN DROUGHT STRESS

Type: PAPER
Author(s): DASTOORI MONA,RAHIMIAN HAMID,ZAND ESKANDAR,ALIZADEH HASAN,BAHRAMI SARA
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

IN ORDER TO STUDY RELATIVE FITNESS OF RESISTANT AND SUSCEPTIBLE LOLIUM RIGIDUM BIOTYPES TO ACCASE INHIBITING HERBICIDES, IN DROUGHT STRESS CONDITIONS, AN EXPERIMENT WAS CARRIED OUT BY FACTORIAL BASED ON COMPLETELY RANDOMIZED DESIGN WITH THREE REPLICATIONS. TREATMENTS CONSISTED OF MATRIC POTENTIAL FIVE LEVELS (0, -3, -6, -9, -12, -15 BARS) AND THREE RESISTANT, SEMI RESISTANT AND SUSCEPTIBLE LOLIUM RIGIDUM BIOTYPES TO ACCASE INHIBITING HERBICIDES. POLYETHYLENE GLYCOL WAS USED TO PREPARE DIFFERENT DROUGHT LEVELS. RESULTS REVEALED THAT SUSCEPTIBLE BIOTYPE HAD HIGHEST GERMINATION RATE. AMONG DIFFERENT MATRIC POTENTIAL, CONTROL AND -15 BAR POTENTIAL HAD THE HIGHEST AND LOWEST GERMINATION RATE, RESPECTIVELY. THE DIFFERENCE AMONG -3, -6, -9 AND -12 BARS POTENTIALS WAS NOT SIGNIFICANT.

 
Keyword(s): MATRIC POTENTIAL, GERMINATION PERCENT, GERMINATION RATE
 
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