Manufacturing method for salt-tolerant zoysia japonica pelleted seeds
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A production method, the technology of zoysia grass, applied in the direction of seed coating/seed dressing, etc., can solve the problems of hindering the metabolic activities of plants, affecting the normal growth and development of plants, and reducing seed vitality.
Pending Publication Date: 2020-07-07
CHINA AGRI UNIV
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Under salt stress, reactive oxygen species are mainly generated in organelles such as mitochondria and chloroplasts. Studies have shown that the increase of ROS will cause damage to proteins, membrane lipids, nucleic acids, etc., thereby hindering the normal metabolic activities of plants and affecting the normal growth and development of plants.
In the study of corn (Zea mays), rape (Brassica napus) and oats (Avena sativa), it was found that when the salt concentration reached a certain threshold, the germination potential and germination rate of seeds decreased, and the length of seedlings shortened, resulting in reduced seed vigor
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Embodiment 1
[0023] 1) Zoysia seed selection
[0024] Select zoysia seeds with clarity > 98% and germination rate > 85%, soak the seeds in 10% NaOH for 30 min to process the zoysia seeds, and dry them naturally to remove the dormancy of the seeds.
[0025] 2) Ascorbic acid seed dressing
[0026] Weigh 5 g of zoysia seeds after natural drying in step 1) in a No. 3 ziplock bag, and use ascorbic acid (abbreviation: AsA) with a concentration of 2 mmol L -1 Ascorbic acid for seed dressing treatment, control the mass ratio of zoysia bare seeds and ascorbic acid to 1g: 0.35mg, shake well for 60s, so that the active ingredients are wrapped on the surface of the seeds, forming a coating layer, and fully play the role of antioxidants; After drying, the water evaporates quickly after the seed dressing and the coating is uniform.
[0027] 3) Seed coating:
[0028] Nucleation period: Pour the seeds after seed dressing into the coating machine, adjust the rotation speed to 450rpm~550rpm to make the s...
Embodiment 2
[0059] Taking Zoysia japonica as material, the AsA solution that concentration is set to be 1, 2, 4, 8mM respectively in the embodiment 1 step 2) carries out ball coating after seed dressing, and controls the mass ratio of Zoysia nude seed and ascorbic acid For 1g: 0.7mg. The salt-tolerance performance of the pelleted seeds with different treatments was evaluated, and the Zoysia seed treatment numbers were: PZA1, PZA2, PZA4, and PZA8.
[0060] The preparation mass fraction is that the NaCl solution of 1wt% and 1.25wt% concentration is zoysia salt stress concentration, carries out germination test on paper with above-mentioned zoysia ball coat seed, and infiltrates filter paper during germination test and carries out seed stress treatment, with reference to pasture Seed Inspection Regulations (GB / T 2930.10-2017) Zoysia seed germination standard Conduct germination test, count the seed germination every 24 hours, take the radicle breaking through the seed coat by 2mm as the stan...
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Abstract
The invention discloses a manufacturing method for salt-tolerant zoysia japonica pelleted seeds, belonging to the technical field of seed pretreatment. The manufacturing method comprises the followingsteps: carrying out seed dressing on healthy naked seeds with ascorbic acid, wherein the mass ratio of the naked seeds to the ascorbic acid is 1 g: (0.35-1.4) mg, and the solution concentration of the ascorbic acid is 2-8 mmol.L<-1>; allowing zoysia japonica seeds to roll in a pelleting machine at a constant speed, alternately adding an adhesive and a powder, and carrying out uniform stirring until the adhesive and the powder are uniformly coated on the zoysia japonica seeds so as to obtain the salt-tolerant zoysia japonica pelleted seeds. According to the invention, the ascorbic acid is adopted for seed dressing of the zoysia japonica seeds, so the salt stress effect of the zoysia japonica seeds can be effectively relieved; the vitality of the seeds can be improved; a certain germinationaccelerating effect is achieved; and the purposes of promoting seed germination, seedling uniformizing and seedling strengthening are achieved; meanwhile, the zoysia japonica seeds processed by pelleting are increased in volume and weight and uniform in specification, so mechanical and precise seeding can be easily realized.
Description
technical field [0001] The invention belongs to the technical field of seed pretreatment, and in particular relates to a preparation method of salt-tolerant zoysia ball-coated seeds. Background technique [0002] Zoysia (Zoysia) belongs to the Poaceae (Gramineae) Chloridoideae (Chloridoideae), Zoysia japonica (Zoysia japonica) is a high-quality warm-season lawn grass with good stress resistance such as drought resistance and salt tolerance Alkali and trampling resistance, so it has great use value in landscaping and sports field lawn, mainly distributed in Africa, Asia and coastal areas of Australia. Liaodong Peninsula and Jiaozhou Peninsula are the areas with the most natural Zoysia grassland distribution in my country, mainly coastal saline-alkali land. Studies have shown that saline-alkali stress will reduce the number of emergence and coverage of Zoysia turfgrass, and prolong the time for lawn formation. [0003] As a major abiotic stress, salt stress affects most of th...
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Application Information
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