I. Seed breeding
Herbal seed propagation is the most common. The technique of seed breeding is simple, which is conducive to domestication and breeding of new varieties. However, the offspring of seed breeding are easy
Variability occurs and flowering is later, especially when the woody Chinese herbal medicine seeds are used for a long period of time. Therefore, to develop medicinal plant breeding, one is to add
Rapid breeding of new and improved varieties in order to replace old varieties that have been applied in production; Second, to maintain the superiority of new varieties and prevent mixing and degradation. Such as Yuan Hu’s
The tubers are divided into "the mother yuan Hu" and "Zi Yuan Hu". The production must use "Zi Yuan Hu" as the seed to obtain high quality and high yield. Another example is Fritillaria sinensis, because the breeding coefficient is very low
In order to guarantee the quality of the seeds, the production site will be cultivated separately from the seed land. Rehmannia glutinous rice cultivar, Golden No.
Compared with the original variety, the disease is light and the yield is high, and the variety degraded by the virus can be rejuvenated. Therefore, the use of new biological technology for the cultivation of fine varieties of Chinese herbal medicine
Education (including multiple breeding and other breeding techniques) and rapid propagation of clones, then establishing a large-scale production base according to the national GAP requirements is fundamentally
One of the effective ways to improve the quality of Chinese herbal medicine in China.
Second, nutrition breeding
Nutrient breeding accounts for about 35% of medicinal plant cultivation, such as rooting, ramets or breeding with bulbs (fritillaria), tubers (polygonum multiflorum), bulbous buds (Pengxia).
Some Chinese herbal medicines are very difficult to harvest seeds or seeds, such as Yalian and Chuanxiong, and they have been used for asexual reproduction. Asexual breeding than seed breeding
Fast, high-yield, short-lived, and able to maintain good parental traits, it is used more. If Fritillaria grows with a bulb, it will take only 5 years
Received. However, sometimes long-term asexual reproduction can easily lead to species degradation, such as rehmannia, yam, etc., must pay attention to miscellaneous, inferior, ready to plant, prevent degradation. day
The long-term asexual propagation of hemp, serious degradation of varieties, the use of sexual breeding of gastrodia (leaf mushroom bed method), increased viability, both to solve the problem of degradation of the species, and solution
The problem of lack of provenance is determined, and the yield and quality increase.
Third, organizational training
The tissue culture of Chinese herbal medicine is to put the separated tissue material (such as root, stem, leaf segments, pieces, etc.) into a synthetic culture.
In the bottle, it grows or develops under aseptic processing conditions. It utilizes the regenerative capacity of the somatic cell of the medicinal plant to cultivate the original variety.
Traits and characteristics of plants. It is a modern and most advanced Chinese herbal medicine rapid propagation technology. It is used in the cultivation of Chinese herbal medicine GAP (quality management standard for Chinese medicinal materials).
Tissue-culture methods are used to breed virus-free plants and produce pollution-free green Chinese herbs.
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