Effects of Different Chemical Treatments on Seed Germination of Abies chensiensis
Guo Zhihui · Xibei nongye xuebao · 2010
Qinling Fir(Abies chensiensis) is an evergreen tree belonging to Pinaceae abies,and it is an endemic and endangered plant in China and entitled as the second-class state protection plant.Theory and research on mechanism of seed dormancy and germination have been explored systemically in trees,however few articles were reported on seed dormancy and germination of Qinling Fir.This article focused on the germination of Qinling Fir seeds soaked with chemicals,including gibberelin(GA3),potassium nitrate(KNO3) and mercuric chloride(HgCl2).The study is to seek proper chemical and its soaking concentration to promote germination of Qinling Fir seeds.The experimental results indicated that gibberelin solution treatments could obviously increase germination percentage of Qinling Fir seeds,and the maximum germination rate occurred at the concentration of 200 mg/L,increased by 110% compared to the control;potassium nitrate solution treatment was not significant effect on promoting the germination of Qinling Fir seeds;and mercuric chloride solution treatment played an inhibitory role in Qinling Fir seed germination.