The invention discloses a method for improving the
germination uniformity of keteleeria cyclolepis flous. The main technical parameters of the method comprise: (1) high
full rate seed obtaining, wherein purification selection with an electric purification selection
machine is used to replace a low efficiency soaking floating method to remove empty particles; (2) low temperature
dormancy breaking, wherein short-term low-temperature storage at a temperature of 3-5 DEG C is performed to break
dormancy; (3)
grease removing with a NaOH warm soup, wherein the seeds were lastingly soaked in
warm water for 4-5 h, and then soaking with a NaOH solution with a
mass concentration of 1.0-1.5% is performed for 16 h so as to complete the
grease removing; (4) seed soaking with clear water and treatment with an agent, wherein the seeds are placed in clear water with an initial temperature of 45-55 DEG C to soak for 24-36 h, and then the seeds are soaked for 2 h in a 500 ppm
gibberellin solution; and (5) dense
sowing on a sand
bed, wherein the seeds are uniformly sprinkled on a flat sand
bed, and the
sowing amount is 0.5-0.6 kg / m<2>. According to the present invention, with the application of the method to perform the treatment and the
germination accelerating on the keteleeria cyclolepis flous seeds, the
full rate of the seeds before the
sowing can achieve more than 80%, the field
germination rate can achieve more than 75%, the germination time is 15-25 days, the nursery
seedling emergence germination rate achieves more than 70%, the germination uniformity and the nursery
seedling emergence germination rate of the keteleeria cyclolepis flous are substantially improved, and the germination time is shortened.