Method for improving productivity and quality of liquorice seeds

Abstract

The invention belongs to the technical field of plant breeding and elite breeding and relates to a production method of liquorice elite breeding. The production method includes the following steps that firstly, a growth period is met and fruit abortion is relieved; secondly, the planting density is limited and seed yield is ensured; thirdly, fertilizing management is performed and bud breeding and blossoming are ensured; fourthly, drought and flooding are prevented and the number of blooming flowers is reduced; fifthly, artificial supplementary pollination is performed; sixthly, the coordinating relation between nutrition growth and reproduction growth is regulated, the density of flowers and fruits is low and the maturity degree is improved; seventhly, insects are prevented and treated and the quality of seeds is improved; eighthly, overwintering and coldness preventing are performed and freeze injuries to flower buds are reduced; ninthly, blended selection and seed collecting are performed and the purity of the seeds is ensured. According to the production method of liquorice elite breeding, the liquorice growth environment is improved, fertilizing is performed according to a formula, and planting is performed reasonably and densely, so that the cycle of blooming and podding of seeds is shortened and the seed podding rate, the maturity degree and the yield are correspondingly improved. The technical barrier in artificial cultivation of liquorice seeds in production is effectively removed, the yield and the quality of the seeds are improved, the situation that wild seeds are gradually less is relieved and the demand for seeds in the market is met.