Method for seed selection of excellent honeysuckle flower Lonicera japonica Thunb II variety

Abstract

The invention relates to a method for seed selection of an excellent honeysuckle flower Lonicera japonica Thunb II variety and is suitable for seed selection of a novel honeysuckle flower variety. The method comprises the following steps of collecting branches of a large chicken feet-type farm-variety plant in the main honeysuckle flower producing area in the Pingyi county of the Shandong province, carrying out irradiation mutagenesis by 15 to 25Gy of <60>Co-gamma rays, carrying out cottage and transplant, carrying out single-plant seed selection of variant individuals, carrying out cottage and transplant to obtain a plant system, and carrying out variety comparison and production test. The novel Lonicera japonica Thunb II plant has a short, thick and straight limb, a large amount of branches, long circle-shaped leaves, sparse and short pubescence at leaf veins and leaf edges, internode length of 2.5 to 7cm, average flower bud length of 4.16cm, a large amount of flowers, a long bud period, compact pier piles, concentrated buds, chicken feet-shaped flowers and an early flowering phase, can be picked easily, and is suitable for close planting. Compared with the original large chicken feet-type farm-variety, the honeysuckle flower Lonicera japonica Thunb II obtained by the method has a honeysuckle flower medicinal material yield improved by 20.2%, chlorogenic acid content improved by 17.95% and galuteolin content improved by 15.20%.

Description

technical field [0001] The invention relates to a method for breeding fine varieties of honeysuckle, which is specially used for breeding a new variety of honeysuckle "Lonicera No. 2" with stable properties and suitable for production needs. Background technique [0002] Honeysuckle is the dry flower buds and early blooming flowers of Lonicera japonica Thunb., a plant of Lonicera japonica Thunb. It has a long history of medicinal use and belongs to the famous traditional Chinese medicine. It is sweet in taste and cold in nature. Evacuating wind-heat and other effects, it is used to treat carbuncle and furuncle, sore throat, erysipelas, heat-toxin blood dysentery, wind-heat cold, febrile disease fever, etc. It has outstanding curative effect and is the first choice for clearing away heat and detoxification in traditional Chinese medicine. The annual demand exceeds 20 million kilograms. In addition to medicinal use, honeysuckle is also widely used in soil and water conservati...

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Problems solved by technology

[0004] The present invention aims at the chaotic cultivation of germplasm in the main production areas of honeysuckle, lack of high-yield and high-quality cultivars, low and unstable medicinal material yield and quality, and determines the technical problems to be solved Yes: Based on the type of Dajijiao farmers in the main production area, provide the breeding method of the fine variety "Liandong No. 2" of honeysuckle. On the basis of determining the cultivation type, cut the annual branches and use 60 Co-γ radiation treatment enhances variation, and through the observation of plant morphological characteristics and biological characteristics, selects plants that produce more flowers and is easy to pick for directional cultivation, and improves the entanglement of upper branches, poor uprightness, small number of flower bud differentiation, and honeysuckle of the big chicken feet farm type plants. Due to the unfavorable traits of low yield of medicinal materials, the selected excellent single plants were used for cutting propagation, and the traits were basically stable, the quality of medicinal materials was good, and the yield was high. The "Lonicera No. 2" honeysuckle was selected for large-scale promotion and standardized planting. Variety

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