Culture method for paris polyphylla var. yunnanensis seeds

Abstract

The invention discloses a culture method for paris polyphylla var. yunnanensis seeds. The method comprises the steps of seed selection, seed washing and peeling, first-time low-temperature storage, peeling culture, second-time low-temperature storage and seed germination culture. According to the culture method, through simulating a winter low-temperature environment in the natural world and carrying out dormancy breaking twice by adopting low-temperature treatment twice, the dormancy stage of the paris polyphylla var. yunnanensis seeds can be effectively broken, the germination period of paris polyphylla var. yunnanensis is shortened to 90 to 125 days from two years, the germination rate is increased to 85% to 95% from 30% to 50%, the germination period of the paris polyphylla var. yunnanensis seeds is shortened, the germination of the paris polyphylla var. yunnanensis seeds is accelerated, the germinating rate of the paris polyphylla var. yunnanensis seeds is increased, and the problems that the paris polyphylla var. yunnanensis is long in nursery stage and low in germination rate are solved; and the culture method is simple and easy and is low in cost, and a technical support is provided for the propagation and large-scale planting of the paris polyphylla var. yunnanensis.

Description

technical field [0001] The invention belongs to the technical field of planting Chinese medicinal materials, and in particular relates to a method for cultivating the seeds of Pachyphytum dianthus. Background technique [0002] Dianzhonglou is included in the 2010 edition of "The Pharmacopoeia of the People's Republic of China". It has the effects of clearing heat and detoxifying, reducing swelling and pain, cooling the liver and relieving convulsions; it is used for boils and carbuncles, sore throat, snake bites, and pain from falls , convulsions. Dianzhonglou can not only be directly used as medicine, but also the main ingredient of famous Chinese patent medicines such as "Yunnan Baiyao", "Gongxuening", "Reduqing", "Jidesheng Snake Tablet". For a long time, people have been relying on natural wild resources for Dianzhonglou. Due to long-term excessive plundering and excavation, the wild polyphylla has been devastated and is now on the verge of depletion. Artificial plant...

AI Technical Summary

Problems solved by technology

However, the artificial planting of Chonglou is mainly planted directly with wild rhizomes or cut into sections, which will inevitably occupy a large amount of raw materials, leading to intensified contradictions between species and raw materials. From the perspective of long-term development, the industrialization of Chonglou Artificial cultivation should start from the breeding of seeds

[0003] When the fruit of Dionysus yunnanensis plant is mature, the embryo of the seed is still underdeveloped, and it belongs to the recalcitrant type seed. The germ, hypocotyl, radicle and cotyledon in the embryo have not yet developed and formed, and the endosperm is hard, and the surface layer of the inner seed coat is keratinized Morphological post-ripening and physiological dormancy characteristics, the embryo needs to be post-ripening after dormancy to germinate, so that after sowing in the conventional field, it usually takes two winters and one summer to germinate seedlings. It takes about 18 to 22 months for the seeds to germinate. It takes a long time, which is a typical "biennial seed"; and in the natural state, even after a long period of dormancy, the emergence rate of Dianzhonglou seeds is low, and the seedling rate is even lower, less than 1%.

Due to the limitation of resources and environment, few people have studied the reasons for the low germination rate and poor seedling growth rate of P.