Seed treatment method for accelerating germination of polygonatirhizoma seeds

Abstract

The invention relates to a seed treatment method for accelerating germination of polygonatirhizoma seeds. The seed treatment method comprises the steps of seed selection, low-temperature high-intensity magnetic field germination acceleration, variable-temperature germination acceleration, normal-temperature hormone high-intensity magnetic field germination acceleration and sowing. The polygonatirhizoma seeds stored at normal temperature are sequentially subjected to low-temperature high-intensity magnetic field germination acceleration, variable-temperature germination acceleration, and normal-temperature hormone high-intensity magnetic field germination acceleration finally, then seedling raising or planting is carried out, and the germination rate of the polygonatirhizoma seeds treated through the seed treatment method can reach 90% or above 50 days after the polygonatirhizoma seeds are sown and can reach 93% or so 60 days after the polygonatirhizoma seeds are sown; according to theseed treatment method, the dormancy time of normal-temperature storage can be effectively and greatly shortened, the germination rate is greatly increased, and the growth cycle of polygonatirhizoma can be remarkably shortened; and seed consumption during polygonatirhizoma planting is reduced, so that polygonatirhizoma planting cost is reduced, and the seed treatment method is suitable for application and popularization in large-area polygonatirhizoma planting fields.

Description

technical field [0001] The invention relates to the technical field of Polygonatum planting, in particular to a seed treatment method capable of rapidly breaking the dormancy of Polygonatum seeds and accelerating the germination of Polygonatum seeds when planting and breeding Polygonatum seeds. Background technique [0002] Polygonatum ( Polygonatirhizoma ) is a perennial herb of Asparagaceae Polygonatum. According to "Flora of China", there are about 60 species of Polygonatum genus in the world, which are widely distributed in the northern temperate zone, mainly distributed in the Himalayas to Japan. There are 39 species in my country. There are three kinds of Rhizoma Polygonatum used as medicine: Polygonatum kingianum Coll.et Hemsl, Polygonatum wibiricum Red. and Polygonatum cyrtonema Hua. [0003] Huang Jing has a long history of medicinal use in my country. It was first recorded in "Shen Nong's Materia Medica", and its medicinal value is very high. "Shen Nong's Materia ...

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Problems solved by technology

[0006] At present, for breaking the dormancy of Polygonatum seeds, there are already warm water immersion, layering treatment, hormone and chemical substance treatment, etc. However, no matter which treatment method, Polygonatum seeds must go through the process of germination at low temperature in sand storage for more than 100 days after harvesting. The germination rate of Polygonatum seeds treated with sand storage and breaking dormancy can only reach 85% in about 60 days after sowing, and the germination rate of Polygonatum seeds that have not been subjected to the low-temperature germination process of sand storage is only 30% after about 80 days of germination. ~40%

However, the low-temperature germination of Polygonatum seeds in sand storage is cumbersome, takes up a large area, has a long cycle, and has high requirements for temperature and humidity. Therefore, due to the dormancy characteristics and low germination rate of Polygonatum seeds, although the seed cost of seed breeding is relatively The cost of tubers is low, but Polygonatum seed breeding is still not accepted by Polygonatum growers or planting enterprises. If a way to quickly break seed dormancy can be found, it is more suitable for large-scale Polygonatum seedlings or planting

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