Method for breaking seed dormancy of Paris polyphylla var. yunnanensis

Abstract

The invention relates to a method for breaking the dormancy of the seeds of Paris polyphylla var.yunnanensis, belonging to the technical field of Chinese traditional medicine planting. The method includes the following steps: 1. the mature seeds of the Paris polyphylla var.yunnanensis with red seed coats are collected in September to October every year, the red seed coats are washed away, the seeds are naturally dried in shade at room temperature for 15 days and then are filled into air permeable valve bags for storage; 2. the seeds stored in the bags are taken out at the middle of November, dipped in the water with room temperature for 15 hours, then are taken out and naturally dried in shad at room temperature for 15 hours, and finally are again dipped into the water with room temperature for 15 hours; 3. the processed seeds are directly sowed in soil for sprouting, covered with 2 cm thick soil, and watered in an appropriate state that no water accumulation exists; the seeds in soil sprout in 60 days, and germination rate can reach over 90%. Compared with the existing processing method of controlling temperature and applying gibberellin, the method has the advantages of simple operation, low cost, quick germination, etc., thus the method can be extensively applied to the planting of the traditional Chinese medicine of Paris polyphylla var.yunnanensis.

Description

Technical field: [0001] The invention relates to a method for breaking the dormancy of Paris polyphylla var. yunnanensis seeds, belonging to the technical field of traditional Chinese medicine cultivation. Background technique: [0002] Dianzhonglou is a famous and precious Chinese medicinal material. Its seeds have the physiological characteristics of long dormancy time, that is, the fresh seeds harvested in September and October in winter without the red outer testa cannot directly emerge after sowing. Under natural conditions, the seeds of Dianzhonglou After two winters and one summer of development, the cotyledons are not unearthed until the third spring. [0003] At present, the better methods to break the dormancy of the seeds of Prunus edulis are: (1) after stratification at 18°C, the germination rate reaches 80% in 61 days; (2) at 22°C, the seeds of P. After soaking in the gibberellin solution for 48 hours, the germination rate reached more than 90% after being plac...

AI Technical Summary

Problems solved by technology

However, the above-mentioned method of using temperature control and applying gibberellin to break the dormancy of the seeds of Diana polyphylla has a relatively high processing cost.

[0004] Through document retrieval, do not see the public report identical with the present invention