Method for accelerating germination of paris polyphylla seeds

Abstract

The invention discloses a method for accelerating germination of paris polyphylla seeds. The method comprises the following steps: step one, taking paris polyphylla seeds and soaking the paris polyphylla seeds in a gibberellin solution in mass-volume concentration of 0.1-0.5% at the temperature of 20-30 DEG C; step two, carrying out ultrasonic treatment on the paris polyphylla seeds soaked by gibberellins; step three, carrying out dehydration treatment on the paris polyphylla seeds subjected to ultrasonic treatment; and step four, carrying out fluctuating-temperature stratification treatment on the paris polyphylla seeds subjected to the dehydration treatment: firstly carrying out stratification on the paris polyphylla seeds for a period of time under the constant-temperature condition at the temperature of 5 DEG C, then carrying out stratification on the paris polyphylla seeds for a period of time under the constant-temperature condition at the temperature of 25 DEG C, and finally carrying out stratification of the paris polyphylla seeds for a period of time under the constant-temperature condition at the temperature of 5 DEG C. According to the method, the germination rate of the paris polyphylla seeds after one month is 24%; the germination rate of the paris polyphylla seeds after two months is 86%; the uniformity of the emerged seedlings is high; the number of normal seedlings accounts for 95% of the number of germinated seeds; the quality of the paris polyphylla seedlings is greatly improved.

Description

technical field [0001] The invention relates to a technique for releasing dormancy of plant seeds, in particular to a method for promoting the germination of seeds of Pachyphytum dianthus. Background technique [0002] Paris polyphylla Smith var.yunnanensis (Franch.) Hand.-Mazz. is one of the basic plants of polyphylla medicinal materials recorded in the 2015 edition of "Pharmacopoeia of the People's Republic of China". It is one of the main raw materials of Chinese patent medicines such as Yunnan Baiyao, Gongxuening, and Duoming Dan. [0003] The fruit period of Dianzhonglou is from September to November. When the fruit cracks and the outer testa of the seeds gradually changes from orange to deep red, the seeds are mature, but the embryos of mature seeds are not fully developed and have no obvious differentiation. They are in the stage of spherical embryos. Typical dormant seeds. The dormancy period of P. dianthus seeds is relatively long, and it takes two winters and one...

AI Technical Summary

Problems solved by technology

However, there is no report on the method that the combined action of gibberellin seed soaking, ultrasonic stimulation, alternating dry and wet stimulation, and variable temperature stratification can promote the germination of the seeds of P.