Accelerated breeding method for licorice seeds

Abstract

Provided is an accelerated breeding method for licorice seeds. The licorice fruit bearing period is shortened, and enough seeds are provided for artificially planting licorice. The accelerated breeding method for licorice seeds comprises the steps that triennial licorice principle roots are taken as licorice seedlings; a land parcel with irrigation arable soil or sandy soil is selected; the licorice seedlings are planted in a wide and narrow row spacing planting method; after the licorice seedlings are planted, a drip irrigation zone is laid beside a licorice seedling zone, and covered with a black mulching film; in the key breeding period of the licorice seedlings, drip irrigation water is applied once every 20 days, the drip irrigation amount is 20 m<3> each mu each time, and the number of total drip irrigation times in a year is 8-10; after 80% licorice pods in the licorice seed land are mature, a hay mower is used for harvesting at a time, and threshing and airing are carried out in time. By means of the breeding method, the breeding period of licorice can be 2-3 years earlier, the seed yield is increased by 2 times or above, the worm damage rate of the seeds is controlled to be within 5% and is reduced by 15% or above compared with that of wild seeds, the seed germination rate is greatly increased, and the seed germination potential is greatly improved. Meanwhile, the pressure that licorice seeds rely on wild seeds for a long time can be relieved, the wild licorice genetic resource can be protected, and artificial destruction on the environment is controlled.

Description

Technical field [0001] The present invention belongs to the field of Chinese herbal medicine planting technology. It involves a method of breeding of licorice seeds, and specially involves a licorice seed to speed up breeding. Background technique [0002] Licorice is a perennial herbaceous plant. The roots and perchylona are thick, which is a kind of nourishing Chinese herbal medicine.The medicinal parts are root and perchylona. The root of the medicinal material is cylindrical, with a sweet and special smell.Indications to clear heat and detoxify, expectorant and cough, abdomen, etc.The dry climate with a long day and high temperature.Wild licorice grows mostly in the drought, semi -arid desert grassland, the edge of the desert, and the loess hills.With the deepening of licorice medical research and the increase in development, the market demand of licorice has also increased year by year, and the market prospects are getting wider and wider.However, the long time of wild licor...

AI Technical Summary

Problems solved by technology

However, it takes a long time for wild licorice to set seeds, and it takes 5 to 6 years or even longer for the period from seed planting to seed formation at the fastest. Wild licorice collection alone cannot meet the demand for seeds of artificially planted licorice.