Paper Details

Effect of different treatments on dormancy breaking of wild Oat (Avena fatua)

Bentolhoda Shahvand, Hamid Reza Miri, Ali Reza Bagheri

DOI: https://dx.doi.org/10.12692/ijb/6.6.61-67

Int. J. Biosci. 6(6), 61-67. March, 2015. (PDF)

Abstract:

To study the effect of different treatments on dormancy breaking of Avena fatua eight experiments based on randomized complete design (RCD) with five replications were conducted in the Arsanjan Islamic Azad Univetrsity, Fars province. Dormancy breaking treatments included the application of different concentrations of gibberellin, sulfuric acid, warm water, stratification (chilling), scarification, different temperatures, rinsing, and the use of ethanol. The results showed thatthe highest percentage of germination was found in the stratification period of 2 to 3 weeks at 2-5 ° C in which germination rate was over 70%. Gibberellin application with a concentration of 600 ppm led to wild oat braking dormancy with the the maximum seed germination of 36%.The wild oat seeds exposure to sulfuric acid also led to dormancy breaking where the highest germination of 36 % was obtained by a 8-hour seed expoure. The results of concentration of sulfuric acid showed that the highest seed germination was 42% in treatment via concentration sulfuric acid 15%. In addition, our findings indicated that rinsing, warm water application; constant temperatures were not effective treatment forwild oat dormancy breaking.