Sexual propagation method of Rodgersia sambucifolia

Abstract

The invention discloses a sexual propagation method of Rodgersia sambucifolia. The method comprises the following steps: disinfecting the surface of collected Rodgersia sambucifolia seeds, sowing theRodgersia sambucifolia seeds in a seedling culture medium in a seedling culture tray, culturing the Rodgersia sambucifolia seeds in a culture room, transplanting seedlings with the age of more than 4months, and transplanting the seedlings with the plant height of more than or equal to 4 cm, the leaf quantity of 4-6 pieces, and the leaf breadth of 3-5cm into a transplanting medium in an arched shed for culture, applying decomposed farmyard manure to the surface of the transplanting medium after the transplanted seedlings fall down in the same year, wherein the use amount of the decomposed farmyard manure is 1500-2000 kg / mu, ridging at the same time; and transplanting the underground part of the current year to form Rodgersia sambucifolia rhizomes which are the propagated Rodgersia sambucifolia seed balls. According to the method, under the condition that no hormone is added, the average germination rate of the seeds reaches 95.3%, the survival rate of the germinated seedlings reaches 73.8%, the survival rate of the transplanted seedlings reaches 80% or above, and high-quality Rodgersia sambucifolia seed balls with thick rhizomes and developed root systems are propagated in the sameyear.

Description

technical field [0001] The invention relates to a method for sexual reproduction of Southwest ghost tree, belonging to the technical field of plant cultivation. Background technique [0002] Rodgersia sambucifo1ia Hemsl. is a perennial herb of the genus Rodgersia Hemsl. in the family Saxifragaceae. It is mainly produced in Kunming, Xuanwei, Heqing, Jianchuan, Yunnan Province. In Huize County, Luoping County, Yongsheng County, Yulong County, etc., the medicinal material is called Yantuo, and its common names are Maoqinghong, Jiuyeyantuo, Maoqi, Maotou Sanqi, Xuesanqi, and its rhizomes are used as medicine. Bitter, astringent, cool, with heat-clearing and detoxifying, expelling wind and dehumidification, astringent effects, and has significant curative effects for treating colds, headaches, enteritis, bacillary dysentery and traumatic bleeding. [0003] Modern medical research has shown that Yantuo contains petracenin, which is the main component of hundreds of medicines acro...

AI Technical Summary

Problems solved by technology

At present, with the continuous development of the medicinal value of yantuo, the market demand for yantuo is increasing year by year, resulting in the dredging of wild resources of yantuo, and the decline of wild resource reserves. At present, the seedlings of yantuo Breeding mainly adopts rhizome or rhizome cutting propagation technology, or plant group culture rapid propagation, the former, because the rhizome of Yantuo is a medicinal part, it is wasteful to use it as a propagation material, and the reproduction coefficient is low (usually the reproduction coefficient is 3- 5), cannot meet the demand of the market, the latter has higher production conditions and cost requirements

However, the number of seeds of C. chinensis is very large, and the average number of seeds per plant can reach 100-2000. However, the seeds of C. chinensis are very small, and the seed diameter is usually 1.5-2.5mm long and 0.3-0.9mm wide, resulting in After germination, the survival rate of germinated seedlings is low, and the survival rate of transplanted seedlings after transplanting is even lower, so that there is no effective propagation method that can make seedlings survive and transplant a large number of seeds, so that a large amount of seeds of Southwest ghost lamp is wasted

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