CN104137676A - Awn removal and cleaning method for stipa glareosa seeds of gramineous forage grass - Google Patents

Abstract

The invention discloses an awn removal and cleaning method for stipa glareosa seeds of gramineous forage grass. The method includes the following steps that the just-harvested stipa glareosa seeds with awns are poured in a container, fully steeped in a sufficient amount of cold water with the temperature of 20 DEG C for 5-10 minutes, then taken out, drained off and tedded until air drying is completed, hitting and pushing are conducted, the stipa glareosa seeds are repeatedly beaten with elastic slim branches, and the awns of 90 percent of the seeds can be removed; the seeds with the awns removed are placed in the container, steeped in a sufficient amount of cold water with the temperature of 20 DEG C and fully stirred for 5-10 minutes, full seeds at the bottom of the container are taken out, drained off and tedded until air drying is finished, dust is removed through breezes of an electric fan, and therefore the clean full seeds can be obtained. According to the method, the awns of 90 percent of the collected stipa glareosa seeds with the awns can be removed, more than 90 percent of the collected stipa glareosa seeds can be obtained through a wet cleaning process, it is guaranteed that the seeds are full and cannot be damaged, the survival rate is high in production and scientific research, the method has the advantages of being simple, convenient to implement, quick, effective and capable of getting twofold results with half the effort, and a large number of full seeds can be cleared and selected in short time.

Description

A kind of gramineous forage grass Stipa glareosa seed takes off awns and cleans method

Technical field

The present invention relates to plant propagation and technical field of seed breeding, particularly a kind of gramineous forage grass Stipa glareosa seed takes off awns and cleans method.

Background technology

Stipa glareosa (stipa glareosa) is grass family Stipa herbaceos perennial.Because Stipa glareosa is to have the lower numerous grass that enriches basal leaf, be good sand-fixation plant and herbage, also can be used as the raw material of viewing and admiring lawn of Desert Regions bunch planting formula, in the ecological recovery of arid-desert area, there is irreplaceable effect.Stipa glareosa is mainly distributed in the areas such as western part, inner mongolia, Ningxia, Gansu, West of Qinghai Province, Xinjiang, western Tibet and the north; Southern Siberia, the Central Asia, Mongolia also have.Just as other some droughts are raw, psammophytes, the external environmental conditions such as Stipa glareosa buries at long-term adaptation arid, sand, high light have formed the raw feature of typical husky drought, therefore there is very strong adaptability, its main Habitat Types is mobile and half mobile sand ground, and in sand ground fruticuli clump, becomes sociales and the companion species of sandy plant community.Although but Stipa glareosa bears seeds a lot, in natural propagation process in the wild, the seedling numbers of surviving is little.Meanwhile, with climatic variation, soil seriously desertify, overgraze, wild resource is close to and exhausts.So, be badly in need of seeking a kind of tame propagation method.And to be engaged in described work, first need to gather, clean seed, in order to need of production.Stipa glareosa seed is generally in early June maturation, and seed is with long awns, and the very difficult de-awns of employing conventional art and method/clean out pure seed, brings certain difficulty to research and production.Therefore, need to solve the de-awns of Stipa glareosa grass seed/clean technology and method.

At present, domestic there is no found about the de-awns of Stipa glareosa grass seed/clean patent or the research report of technology and method.

Summary of the invention

The object of the invention is to provide the de-awns of a kind of gramineous forage grass Stipa glareosa seed and clean method, that the method has advantages of is simple and convenient, fast effectively, get twice the result with half the effort, can within very short time, clean out large quantities of full seeds as the material of sprouting experiment and sowing use, therefore be beneficial in production and promote.

For achieving the above object, the present invention implements according to following technical scheme:

A kind of gramineous forage grass Stipa glareosa seed takes off awns and cleans method, comprises the following steps:

1) the band awns Stipa glareosa seed of just having gathered in the crops is poured in container, fully soaked to pull out to drain away the water after 5-10 minute ted to air-dry with 20 DEG C of enough cold water, then beat heap, repeatedly beat with resilient withe bar, 90% seed can take off awns;

2) will take off Grain in Ear again and be placed in container, and by 20 DEG C of enough cold water soak and fully stir, after 5-10 minute, treat that in container, water will be in static state, full seed sinks to container bottom, and impurity and floater swim in top;

3) first the floating things such as top impurity and floater are salvaged, and then the full seed of pulling container bottom out drains away the water and ted to air-dry, remove dust with the gentle breeze of electric fan, can obtain clean and full seed;

4) by the full seed pack of cleaning out, be positioned over-20 DEG C of refrigerator-freezers and seal up for safekeeping.

Compared with prior art, the 90% de-awns of Stipa glareosa seed with awns that the present invention can make to collect, adopt wet cleaning process to obtain and gather more than 90% seed of coming, and ensure that seed is full and injury-free, in production and scientific research, use survival rate high, have advantages of simple and convenient, fast effectively, get twice the result with half the effort, can clean out large quantities of full seeds within a short period of time as the material of sprouting experiment and sowing use.

Embodiment

Below in conjunction with specific embodiment, the invention will be further described, is used for explaining the present invention in illustrative examples and the explanation of this invention, but not as a limitation of the invention.

A kind of gramineous forage grass Stipa glareosa seed of the present invention takes off awns and cleans method, comprise the following steps: the band awns Stipa glareosa seed of just having gathered in the crops is poured in container, fully soak to pull out to drain away the water after 5-10 minute with 20 DEG C of enough cold water and ted to air-dry, then beat heap, repeatedly beat with resilient withe bar, 90% seed can take off awns; To take off Grain in Ear again and be placed in container, and by 20 DEG C of enough cold water soak and fully stir, after 5-10 minute, treat that in container, water will be in static state, full seed sinks to container bottom, and impurity and floater swim in top; First the floating things such as top impurity and floater are salvaged, and then the full seed of pulling container bottom out drains away the water and ted to air-dry, remove dust with the gentle breeze of electric fan, can obtain clean and full seed.

Fresh Stipa glareosa seed is after processing of the present invention, and germination rate can reach more than 85%.The Stipa glareosa seed of storage, the Stipa glareosa seed of preserving at-4 DEG C～4 DEG C low temperature was placed after 2 years, and after the present invention processes, germination rate still can reach more than 60%; If preserve under-20 DEG C of cryogenic conditions, the Stipa glareosa seeds time can be longer; And Stipa glareosa seed is preserved 1 year at In China West Arid Land normal temperature (20～25 DEG C), germination rate only has 40%, preserves 2 years, and the highest germination rate only has 20%, and therefore low temperature storage can extend seed vitality, keeps higher germination rate.Therefore,, by the air-dry full seed pack of cleaning out, be positioned over-20 DEG C of refrigerator-freezers and seal up for safekeeping with for subsequent use.

Technical scheme of the present invention is not limited to the restriction of above-mentioned specific embodiment, and the technology distortion that every technical scheme according to the present invention is made, within all falling into protection scope of the present invention.

Claims (1)

1. gramineous forage grass Stipa glareosa seed takes off awns and cleans a method, it is characterized in that, comprises the following steps:

1) the band awns Stipa glareosa seed of just having gathered in the crops is poured in container, fully soaked to pull out to drain away the water after 5-10 minute ted to air-dry with 20 DEG C of enough cold water, then beat heap, repeatedly beat with resilient withe bar, 90% seed can take off awns;

2) will take off Grain in Ear again and be placed in container, and by 20 DEG C of enough cold water soak and fully stir, after 5-10 minute, treat that in container, water will be in static state, full seed sinks to container bottom, and impurity and floater swim in top;

3) first the floating things such as top impurity and floater are salvaged, and then the full seed of pulling container bottom out drains away the water and ted to air-dry, remove dust with the gentle breeze of electric fan, can obtain clean and full seed;

4) by the full seed pack of cleaning out, be positioned over-20 DEG C of refrigerator-freezers and seal up for safekeeping.