CN104686009A - Gathering and cleaning method for extreme xerophyte undershrub reaumurta soongorica seeds - Google Patents

Abstract

The invention discloses a gathering and cleaning method for extreme xerophyte undershrub reaumurta soongorica seeds. The gathering and cleaning method for the extreme xerophyte undershrub reaumurta soongorica seeds includes that gathering, to be specific, shearing the current fruited branches with mature seeds, gathering the branches, tedding at a sunning ground, tedding under the sun to realize air drying, beating, and gathering the fallen seeds; cleaning, to be specific, placing the gathered seeds in a vessel, adding water to the seeds, stirring completely, and standing; air drying, to be specific, fishing out the full seeds at the bottom of the vessel, draining off the water, and tedding to realize air drying; dust removing, to be specific, removing dust from the air dried seeds through the gentle breeze of an electric fan; sealing and storing, to be specific, bagging the clean full seeds, and storing in a -20 degrees centigrade freezer for latter use. The gathering and cleaning method for extreme xerophyte undershrub reaumurta soongorica seeds is easy and convenient to operate, fast and effective, and twice the result is obtained with half the effort; a lot of full seeds used as germination experiment and seeding materials can be cleaned and selected in a short time, and the gathering and cleaning method for extreme xerophyte undershrub reaumurta soongorica seeds is very good for popularization in the production and significant for the reproduction of the eremophyte reaumurta soongorica.

Description

A method for collecting and cleaning super-xerophytic small shrub red sand seeds

technical field

The invention relates to the technical field of plant propagation and seed production, in particular to a method for collecting and cleaning super-xerophyte small shrub red sand seeds.

Background technique

Red Sand (Reaumurta soongorica), also known as Loquat Chai, belongs to Tamaraceae Red Sand and belongs to the deciduous super-xerophyte small shrub. It belongs to the relict plants of Cretaceous and Paleogene. It is also one of the zonal vegetation with the widest distribution range and the largest ecological range in this area. It is widely distributed in Xinjiang, Qinghai, Gansu, Ningxia, Inner Mongolia and Northeast China. When the red sand is green and the crude protein and crude fat are high, it is a medium-quality feed shrub. Camels like to eat it in four seasons, and sheep and horses eat it in good time. In addition, red sand twigs and leaves can be used to treat eczema, dermatitis, antipyretic and sweating. Red sand also has many excellent characteristics such as strong drought resistance, salt tolerance, sand fixation, and barren resistance. It is the main pioneer plant in temperate deserts in my country, and it is also a tree species with great potential for water and soil conservation and barren hills greening. Important ecological "barriers" have important ecological significance for ecological protection and windbreak and sand fixation in desert areas, and play an important role in maintaining the stability and sustainability of desert ecosystems.

In recent years, due to the long-term effects of nature and human activities, the red sand grassland has been seriously degraded and desertified, and it is in urgent need of restoration and reconstruction. The recovery and reconstruction of plant populations depend on both the increase in the size and the number of individuals in the population, and the latter is more profound in extremely dry environments. Although there are many seeds in the wild red sand knot, but in the natural reproduction process in the wild, the number of surviving seedlings is very small. At the same time, with climate change, severe land desertification, and overgrazing, wild resources are almost exhausted. Therefore, it is urgent to seek a kind of artificial cultivation propagation method. To engage in said work, firstly, it is necessary to collect fruits and clean seeds in order to prepare for production needs. Red sand generally blooms at the end of June and early July, bears fruit in early August, and matures from late September to early October. Because the seeds of red sand are about 3 grams long, drop-shaped, oblong, and covered with hairs, it is very easy to adopt traditional techniques and methods. It is difficult to collect pure fruits and seeds, which brings certain difficulties to scientific research and production. Therefore, need to solve the technology and method of wild red sand seed collection/cleaning. At present, there is no patent or research report on the technology and method of wild red sand seed collection and cleaning in China.

Contents of the invention

The purpose of the present invention is to provide a method for collecting and cleaning super-xerophytic small shrub red sand seeds, which can clean a large number of plump seeds in a short period of time as materials for germination experiments and sowing, which is beneficial to popularization and application in production.

To achieve the above object, the present invention adopts the following technical solutions:

A method for collecting and cleaning super-xerophyte small shrub red sand seeds, comprising the following steps:

1) Collection

Cut off the fruiting branches of the year with mature seeds, collect them and bring them back to the pre-prepared drying field and spread them in the sun until they are air-dried, then pile them up, tap them gently and repeatedly with elastic twigs, and collect and fall off Seed;

2) cleaning

Put the collected seeds in a basin or a bucket container, soak them with enough water and stir them well and let them stand;

3) air dry

Remove the unfulfilled seeds and floating impurities in the upper part of the container, and remove the full seeds at the bottom of the container to drain the water and spread them in the sun until air-dried;

4) Dust removal

Use the breeze of an electric fan to remove dust from the plump seeds that have been dried in the sun;

5) Archive

Pack the clean and plump seeds into bags and store them in a -20°C freezer for later use. Serve.

As a further solution of the present invention, the temperature of the water in step 2) is 18°C-20°C.

As a further solution of the present invention, the stirring time of the step 2) is 5-10 minutes.

Compared with the prior art, the present invention has the advantages: the method is simple, convenient, fast and effective, and has the advantage of getting twice the result with half the effort; a large number of plump seeds can be cleaned out in a short period of time as materials for germination experiments and sowing, which is very beneficial for production Popularization and application will play a positive role in the propagation of desertification plant red sand.

Detailed ways

The present invention will be further elaborated below in conjunction with specific examples.

A method for collecting and cleaning super-xerophyte small shrub red sand seeds, comprising the following steps:

1) Collection

Cut off the fruiting branches of the year with mature seeds, collect them and bring them back to the pre-prepared drying field and spread them in the sun until they are air-dried, then pile them up, tap them gently and repeatedly with elastic twigs, and collect and fall off Seed;

2) cleaning

Put the collected seeds in a pot or bucket container, soak them with enough water at 18°C-20°C and stir them thoroughly for 5-10 minutes, then let them stand; after standing, the full seeds will sink to the bottom of the container , while impurities and unfulfilled seeds float on the upper part;

3) air dry

Remove the unfulfilled seeds and floating impurities in the upper part of the container, and remove the full seeds at the bottom of the container to drain the water and spread them in the sun until air-dried;

4) Dust removal

Use the breeze of an electric fan to remove dust from the plump seeds that have been dried in the sun;

5) Archive

Pack the clean and plump seeds into bags and store them in a -20°C freezer for later use. Serve.

After many years of repeated experiments, the following conclusions are obtained: after the fresh red sand seeds are treated by the present invention, the germination rate can reach more than 95%; After the invention treatment, the germination rate can still reach more than 70%; if stored at -20°C, the storage time of the red sand seeds will be longer; and the red sand seeds are stored at room temperature (20-25°C) in the western arid area for 1 year , the germination rate is only 60%, and the highest germination rate is only 50% when stored for 2 years. Low temperature storage can prolong the seed vigor and maintain a high germination rate. Therefore, it is the best solution to pack the cleaned and air-dried plump seeds into bags and store them in a -20°C freezer for future use. The method can clear a large number of plump seeds in a short period of time as materials for germination experiments and sowing, which is very conducive to popularization and application in production, and plays a positive role in the propagation of desertification plant red sand.

The embodiments described above are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Claims (3)

1. a method for collecting and cleaning super-xerogenous small shrub red sand seeds, is characterized in that, comprises the following steps: 1) Collection Cut off the fruiting branches of the year with mature seeds, collect them and bring them back to the pre-prepared drying field and spread them in the sun until they are air-dried, then pile them up, tap them gently and repeatedly with elastic twigs, and collect and fall off Seed; 2) cleaning Put the collected seeds in a basin or a bucket container, soak them with enough water and stir them well and let them stand; 3) air dry Remove the unfulfilled seeds and floating impurities in the upper part of the container, and remove the full seeds at the bottom of the container to drain the water and spread them in the sun until air-dried; 4) Dust removal Use the breeze of an electric fan to remove dust from the plump seeds that have been dried in the sun; 5) Archive Pack the clean and plump seeds into bags and store them in a -20°C freezer for later use. Serve. 2. The method for collecting and cleaning super-xerogenous small shrub red sand seeds according to claim 1, characterized in that, the temperature of the water in the step 2) is 18°C-20°C. 3. The method for collecting and cleaning super-xerophyte small shrub red sand seeds according to claim 1, characterized in that, the step 2) stirring time is 5-10 minutes.