Breeding method of polygonatum cyrtonema multi-bud tillering variety

Abstract

The invention discloses a breeding method of a polygonatum cyrtonema multi-bud tillering variety, and belongs to the technical field of plant propagation. The breeding method comprises the following steps: A1, carrying out polygonatum cyrtonema population ecology investigation; A2, establishing a polygonatum cyrtonema germplasm resource nursery; A3, constructing an HPLC fingerprint spectrum of polygonatum cyrtonema from different producing areas; A4, screening the multi-bud tillering variety; and A5, performing index detection. Compared with a conventional variety, the polygonatum cyrtonema multi-flower tillering variety obtained by the breeding method has the advantages that the yield advantage is obvious, the stress resistance is good, the polygonatum cyrtonema polysaccharide content is high, powerful product quality control guarantee is provided for artificially cultivating polygonatum cyrtonema, and an effective quality evaluation method is provided for screening germplasm resources with high polygonatum polysaccharide content and good quality from polygonatum cyrtonema germplasm resource gardens.

Description

technical field [0001] The invention belongs to the technical field of plant propagation, and in particular relates to a breeding method for Polygonatum multiflora and multiflower tiller varieties. Background technique [0002] Polygonatum is known as the "Century Longevity Immortal Grass". It is one of the traditional Chinese medicinal materials announced by the National Health and Medical Commission. It is also a traditional bulk medicinal material in China. The Pharmacopoeia stipulates that only the dry rhizomes of Polygonatum kingianum, Polygonatum sibiricum and Polygonatum cyrtonema can be used as Chinese medicine Polygonatum, which are commonly called "Rhubarb Rhizome", "Chitou Polygonatum" and "Jinger Shape Polygonatum" respectively. ". Among them: the multi-flower yellow fine variety is recognized as the "best quality variety". [0003] The main producing areas of wild Polygonatum multiflora are the Wuyi Mountains in Fujian and Jiangxi provinces. The artificial cu...

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Problems solved by technology

However, in the artificial planting process of traditional Polygonatum multiflora, it is common: most of the seedlings are in the state of "three noes", that is, there are no standards for production, no channels for operation, and no way for management, which is similar to "the quality of Chinese medicinal materials is uneven, The market situation does not understand the blind development, the seedlings are deceived and it is difficult to protect their rights, and the after-sales service of the seedlings is lacking” and other situations occur from time to time; traditional cultivars are single, low yield, long cycle, and serious quality degradation, etc., urgently need high-quality new varieties to update, To increase the planting benefit; the asexual reproduction coefficient is low, and the required base is very high, mainly because Polygonatum multiflora has a strong germination ability at the front 3-4 nodes, and the generated plants are relatively vigorous, but the nodes at the tail are difficult to germinate. Even if germination is successful, growth quality will suffer

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