Method for improving germination rate and survival rate of sophora alopecuroide seeds and sophora alopecuroide seeds

Abstract

The invention discloses a method for improving the germination rate and the survival rate of sophora alopecuroide seeds of wild medicinal plants and sophora alopecuroide seeds and belongs to the technical field of seed culture. The method comprises the following steps that: firstly 80-98% sulfuric acid is adopted to soak the seeds for 1-1.5 hours, then more than 95% alcohol is adopted to soak the seeds for 18-30 seconds, and then a sodium hypochlorite solution with the active chlorine content of being 3-6% is adopted to soak the seeds for 3-8 minutes; and the concentrations and the treating time of reagents among all the treating steps have influences on the germination rate, the germination uniformity and the survival rate of the seeds respectively. The method disclosed by the invention has the beneficial effects that firstly the treatment with concentrated sulfuric acid is carried out to break and remove tissue structures of horny layers of outer skin layers and palisade layers of middle skin layers of the seeds, due to coverage to seed holes of mature seeds, the structures have influences on water absorption and oxygen entering into the seeds; and next, the alcohol is used for eliminating polar substances in the skin layer corroded by the sulfuric acid, so that the sodium hypochlorite solution is easy to be used for fully soaking the seed coats in the next step and kill microorganisms on / in the skin layer.

Description

technical field [0001] The invention specifically relates to a method for improving the germination rate and survival rate of Sophora sophora seeds, and Sophora sophora seeds treated by the method, and belongs to the technical field of seed cultivation. Background technique [0002] Sophora alopecuroides L. is widely distributed in the desert areas of northwest my country and the saline-alkali habitats in northern my country. It is a medicinal plant of Sophora alopecuroides and has important value in medicine development and ecological maintenance. At present, the amount of wild resources of Sophora sophora in my country has dropped significantly. Although the seed setting rate of Sophora sophora per plant is very high, the pods are not easy to crack and the seeds are not easy to scatter under natural conditions, and the hard seed rate is extremely high, which is not conducive to the normal germination and survival of seeds. . In addition, the seed coat is polluted by mold, ...

AI Technical Summary

Problems solved by technology

At present, the amount of wild resources of Sophora sophora in my country has dropped significantly. Although the seed setting rate of Sophora sophora per plant is high, the pods are not easy to crack and the seeds are not easy to scatter under natural conditions, and the hard seed rate is extremely high, which is not conducive to the normal germination and survival of seeds.

In addition, the seed coat is polluted by mold, which can easily lead to disease of young shoots

At present, the known methods for improving the germination rate include: rice mill grinding, sandpaper grinding, sulfuric acid treatment, etc., but there is no exact standard for the rapid propagation of Sophora sophora, resulting in low seed germination rate, irregular germination, and The poor growth of seedlings not only consumes manpower and time, but also brings confusion to scientific researchers, and has also become a major production problem affecting the sowing of preserved seedlings

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