Method for cottage and rapid propagation of madders

Abstract

The invention discloses a method for cottage and rapid propagation of madders. The method includes the following steps that cuttings for cottage are acquired; a cutting seedbed is prepared, a substrate of the seedbed is prepared from peat, mushroom residues, white mulberry branch powder and vermiculite by weight ratio of 10 to 3-5 to 3-4 to 4-6, the substrate is disinfected by firstly spraying a potassium permanganate solution with the concentration of 0.3% and then is put into seedling raising cups; the cuttings are soaked and disinfected by using the potassium permanganate solution with the concentration of 0.3% and then are put in an ABT rooting solution with the concentration of 500 mg / L for soaking to obtain treated cuttings; the treated cuttings are inserted into the seedling raising cups, the depth of the cuttings inserted into the substrate is 6-8 cm, and the substrate is completely soaked with water after cottage; cutting management and acclimatization and transplanting are performed after cottage to obtain madder seedlings. The rooting rate is above 95% after cutting cultivation is performed for 30-35 days by adopting the method, and the cutting survival rate can be up to 92%. The method has the advantages of being simple in operation, low in cost, high in reproduction speed, high in survival rate and the like, can rapidly produce a large number of madder seedlings and has a very good popularization value.

Description

Technical field [0001] The invention relates to the technical field of crop breeding, in particular to a method for rapid propagation of madder cuttings. Background technique [0002] Rubia (Rubia cordifolia L.) is a perennial climbing herb of the Rubia family. Purple-red or orange-red, cylindrical, fleshy, rough stems, four-sided twigs, and small thorns. The leaves are whorled, single leaves; the leaves are ovate or ovate-lanceolate, the leaf surface is rough, the petiole length varies, the flowers are light yellow, and the cymes; the fruit is orange when mature. Produced in Northeast, North China, Northwest, Sichuan and Tibet. It is mainly based on anthraquinone and its glycoside compounds, but also contains other chemical components such as naphthoquinones, terpenes, hexapeptides, and polysaccharides. It has the function of cooling blood and promoting blood circulation, removing blood stasis, and easing menstruation, used for vomiting blood, bleeding, uterine bleeding, trau...

AI Technical Summary

Problems solved by technology

Cutting propagation can maintain the characteristics of the variety, and the cultivated plants grow faster than sowing seedlings, and can be cultivated into large seedlings in a short time, but the cutting seedlings obtained by cutting propagation have poor root systems and cannot form taproots. The survival rate of seedlings is low, and the life span is longer than that of sowing. Seedlings are short and less resistant to stress

At present, there are few studies on the cutting propagation of madder. The existing cutting propagation methods of madder have problems such as long seedling cultivation period, unstable rooting rate, few root systems of cutting seedlings, and weak disease resistance, which lead to low survival rate and low disease resistance after planting. The growth rate is slow, which is not conducive to the large-scale production of madder cutting propagation