Preparation and priming method of medicago sativa seed priming solution

Abstract

The invention relates to a medicago sativa seed priming solution which comprises the following components in percentage by mass: 140-180mM of KNO3, 120-160mM of KH2PO4 and 0.1-0.2mM of salicylic acid. The preparation and priming method of medicago sativa seed priming solution comprises the following steps: (1) preparing priming solution raw materials; (2) preparing a priming solution; (3) treating the seed priming solution; (4) washing the seeds and removing water; and (5) drying the seeds, namely performing forced air drying at the temperature of 20-25 DEG C for 48 hours, and obtaining the treated seeds. The priming of the medicago sativa seeds is carried out by adopting a proper inorganic salt solution, the activity of the seeds and the stress resistance of seedlings can be effectively improved, and the technology is simple and feasible, low in cost and obvious in priming effect and has high production and application values.

Description

technical field [0001] The invention belongs to the technical field of seed priming in the pasture planting process, and in particular relates to a preparation of alfalfa seed priming liquid and a priming method. Background technique [0002] Alfalfa (Medicago sativa) is also known as alfalfa. Because alfalfa has the advantages of strong adaptability, high yield, and good quality, it is known as the "king of grass" and is the most widely cultivated perennial leguminous forage. However, due to the small size of alfalfa seeds, the germination speed is slow and the germination period is inconsistent, it is difficult to improve the yield and quality of forage seeds; Drought, low temperature, hardening and other adverse conditions at the seedling stage often lead to slow germination and low emergence rate, which has a negative impact on grass production. Therefore, improving alfalfa seed vigor, increasing seed emergence rate, emergence speed and stress resistance of seedlings a...

AI Technical Summary

Problems solved by technology

[0005] At present, forage seed priming mostly imitates or draws on the priming methods of flower or vegetable seeds [15-17] Although some effects have been achieved, it is very difficult to apply these methods to production practice due to the common characteristics of high cost, complicated operation, difficulty in promotion, difficulty in large-scale promotion and large-scale processing.

For example, the cost of PEG initiation is relatively high, which is not conducive to the promotion of industrialization; the sand initiation treatment is difficult to separate the seeds and sand, resulting in relatively cumbersome steps such as back-drying and storage after initiation, and second, it is difficult to control sand during specific operations. water content; water-triggered treatments are prone to imbibition damage [18], increasing the number of abnormal and deformed seedlings

Therefore, these techniques are limited to the exploratory stage of laboratory test methods and have not been applied to field evaluation

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