Two Methods of Improving Germination Rate of Cerasus serrualta (Lindl.) G.Don ex London
[Objective] To explore effective methods of seed germination.[Method] Use mechanical hulling and steeping seeds in GA3.Mechanical hulling:cut the episperm of seeds,uncover the kernel,steep seeds with cut and complete episperm in clean water,2 g/L GA3 for 24h,then germinate in the thermostat (20 ℃,humidity 80％).GA3 treatment:place seeds in sands for 90 days,steep seeds in 1 000,2 000 and 3 000 mg/kg GA and clean water for 24 h,the germinate in the thermostat (20 ℃,humidity 80％).[Result] Both mechanical hulling and GA3 treatment can improve the germination rate,hulling improves the rate to 67.21％,GA3 treatment (1 000,3 000 mg/kg) improve the rate to 77.19％ and 72.58％,but seeds treated with 1 000 mg/kg GA3 grow faster,while the later grow slowly,yellow flowers appear on the growth points,i.e.higher concentration of GA3 inhibits growth of young seedlings.[Conclusion] Treatment with 1 000 mg/kg GA3 is recommended.
国家科技期刊平台
NSTL
万方数据
维普
