Screening method of advantage-based stock seed of isatis root

Abstract

The invention relates to a screening method of advantage-based stock seed of isatis root, and is applicable to improved variety breeding of isatis root. The screening method comprises the steps of: collecting isatis root germ plasma resources and building a resource garden; evaluating individuals and small groups of different germ plasma species according to the individual yield, inherent quality, commercial product characters and reproductive biological characteristics, carrying out germ plasma breeding and screening for continuous two years to obtain advantage-based stock seed of isatis root. The obtained advantage-based stock seed has the advantages that the principal root is long and thick, the leaves are long and narrow, the leaves are dark green, the individual has multiple leaves, and the dry weights of the leaves and root of the individual are high; the seeds are long and wide, full in grains and high in weight of thousand grains; after being conventionally sundried, the isatis root has adenosine content of 6.0-7.5% and alcohol extract content of 25-33%; and isatis leaf has indirubin content of 0.05-0.06% and alcohol extract content of 28-30%.

Description

technical field [0001] The invention relates to a screening method for the original germplasm of the dominant base of Radix isatidis, which is specially used for screening the original germplasm of the dominant base of Radix isatidis with stable properties, high yield, and good quality, so as to facilitate the breeding of improved varieties. Background technique [0002] Radix Isatidis is a commonly used Chinese herbal medicine in my country, derived from the dried root of Isatis indigotica Fort., a cruciferous plant. Radix Radix isatidis is bitter in taste and cold in nature, and has the effects of clearing heat and detoxifying, cooling blood and relieving sore throat through the heart and stomach meridians. Modern chemical and pharmacological studies have confirmed that Banlangen contains alkaloids, organic acids, amino acids, sterols, adenosine and polysaccharides; it has antibacterial and antiviral activities, can enhance the body's immunity, and can prevent the epidemic...

AI Technical Summary

Problems solved by technology

Isatis indica is a widely distributed species, and it is cultivated artificially in most areas of China. However, today, the cultivation types in the main production areas are extremely chaotic, resulting in uneven commercial properties and internal quality of isatis root produced in various places, and it is difficult to guarantee this quality. The output of medicinal materials is stable and the quality is controllable; at present, most researches are all focused on aspects such as field standardized planting techniques (Chen Yuhang, etc., the impact of planting density on growth dynamics and yield of Isatis indigo, Chinese Journal of Traditional Chinese Medicine, 2008, 33(22): 2599- 2602; Chen Yuhang et al. Effects of sowing date on the morphological characteristics, yield and quality of Radix Radix Radix Radix Radix, Chinese Journal of Traditional Chinese Medicine, 2009, 34(21): 2709-2712; Xiangwei Yan et al. Influence of dynamic accumulation of indirubin in leaves. Chinese Journal of Traditional Chinese Medicine, 2011, 36(8): 977-979), but there are few research reports on germplasm comparison and variety selection (Guo Qiaosheng et al. Different germplasms of Isatis indica Growth characteristics and its correlation with yield per plant. Chinese Journal of Traditional Chinese Medicine, 2009, 34(16): 2034-2038.); therefore, it is urgent to carry out the evaluation and screening of the original germplasm of the dominant base of Radix isatidis, in order to provide high-quality and high-yield Variety selection provides high-quality breeding material

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