Mei LuoYin;Ming’an Liao;Yanli Ren;Zhou XueLia

,REN Ya-jun,ZHOU Xue-lian College of Horticulture,Sichuan Agricultural University,Ya'an,Sichuan 625014,Chin;,REN Ya-jun,ZHOU Xue-lian College of Horticulture,Sichuan Agricultural University,Ya'an,Sichuan 625014,China

acinosa;concentrated;h2so4;seeds;iba;germination percentag

[Objective]To study the effects of concentrated H2SO4 and IBA on breaking dormancy and germination index of P. acinosa seeds,so as to provide theoretical evidence for breeding P. acinosa. [Method]After being soaked for 10,20,30 and 40 min in concentrated H2SO4,the germination percentage of P. acinosa seeds was respectively recorded. Then,the germination percentage,germination energy,germination index and vigor index of P. acinosa seeds that had been first soaked for some time in concentrated H2SO4 and then independently treated with 0,30,60,90 mg/L IBA were tested. [Result]The appropriate soaking time of concentrated H2SO4 and concentration of IBA were 20 min and 60 mg/L respectively,with which the germination percentage,germination potential,germination index and vigor index were 85%,62%,11.3 and 220.58 respectively. [Conclusion]It provides guiding significance for the germination of P. acinosa seeds and the breeding of P. acinosa,respectively.