A method for cultivating Cyclocarya paliurus to increase the content of secondary metabolites in Cyclocarya paliurus leaves
A technology of secondary metabolites and cultivation methods, which is applied in the field of C. pennywort cultivation for increasing the content of secondary metabolites in p. pennywort leaves, can solve problems such as affecting the health care value of p. pennywort, and achieves improved medicinal quality and improved Effects of Secondary Metabolite Content
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Embodiment 1
[0025] A kind of Cyclocarya paliurus cultivation method of improving the content of secondary metabolites in the leaves of Cyclocarya paliurus of the present embodiment comprises the following steps:
[0026] (1) At the beginning of August, the 3-10-year-old Cyclocarya plant is fertilized to promote the growth of Cyclocarya paliurus; the fertilization fertilizer adopts conventional quick-acting nitrogen fertilizer, preferably ammonium bicarbonate, and the fertilization method adopts "hole application"; During specific fertilization, each pacarya paliurana plant is applied in one-time hole (15-20cm soil layer on both sides of the plant) 200-400g ammonium bicarbonate.
[0027] (2) After 2 weeks of fertilization, use a blade to circumcise the stalk base of the Cyclocarya paliurus plant for a week, so as to cut off the phloem without injuring the xylem. figure 1 It is a plant diagram of Cyclocarya paliurus after cutting the stalk base of Cyclocarya paliurus plant with blade circum...
Embodiment 2
[0032] This example is used to illustrate the technical principle and experimental verification of increasing the content of secondary metabolites in Cyclocarya paliurus leaves in Example 1.
[0033] 1. Technical principle:
[0034] Flavonoids and triterpenoids are the main two types of secondary metabolites in Cyclocarya paliurus. They usually have a small content in plants and are synthesized in large quantities only under some special conditions, such as adversity, strong light, nutrient stress, etc. . Plants usually preferentially use the carbon fixed by photosynthesis for primary metabolism, such as the synthesis of amino acids, sugars, nucleic acids, etc., to promote growth, and only when there is an excess of photosynthetic carbon, will the excess carbon be allocated for use. in the synthesis of secondary metabolites. Example 1 Cutting off the phloem by ring cutting can block the downward transport of photosynthetic products, which can create an environment in which p...
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