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Alfalfa seed pretreatment method for improving vigor of seedlings and saline-alkali resistance

A pretreatment and seed technology, applied in the direction of seed and rhizome treatment, application, agriculture, etc., can solve the problems of easy introduction of pathogenic bacteria, damage to seed vigor, increase the emergence rate, etc. Osmotic stress, the effect of improving the speed of emergence

Inactive Publication Date: 2011-10-05
GANSU AGRI UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using physical methods to scratch the seed coat and increase the emergence rate is also very easy to introduce pathogenic bacteria, causing certain damage to the maintenance of seed vitality; the seed dressing process is complicated; the cost of seed coating is expensive; the more commonly used seed initiating reagents mainly include polymer Organic macromolecules such as ethylene glycol, cross-linked sodium acrylate, and polyvinyl alcohol, and small inorganic salt molecules such as potassium nitrate, sodium chloride, and calcium dichloride. Chemical agents mainly include gibberellic acid, sodium hypochlorite, etc. However, due to different The characteristics of the germplasm are different, and the concentration of the selected treatment agent is also different, which causes some inconvenience to the seed soaking and priming treatment of different germplasms, and the low concentration of the agent is not enough to corrode the hard and thick seeds. skin, to promote seed germination, not enough to kill the germs carried by the seeds and reduce the mortality of seedlings, but if the concentration of the chemical treatment is too high, it will have an adverse effect on the activity of embryos and internal enzymes, thereby inhibiting the normal growth of seedlings and increasing the treatment. At the same time, some medicines are expensive, which is not conducive to mass use in production

Method used

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  • Alfalfa seed pretreatment method for improving vigor of seedlings and saline-alkali resistance
  • Alfalfa seed pretreatment method for improving vigor of seedlings and saline-alkali resistance
  • Alfalfa seed pretreatment method for improving vigor of seedlings and saline-alkali resistance

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Experimental program
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Effect test

Embodiment 1

[0031] Put 5.0 g of Longdong alfalfa seeds into a nylon mesh bag with good air permeability, and place them evenly in a drying dish filled with silica gel. The ratio of seeds to silica gel is 1:10 (mass ratio), and then replace the silica gel every 23 hours. The silica gel was dried at a high temperature of 120°C to constant weight and cooled; the seeds were dried with silica gel in a sealed container at room temperature for 12 hours, and the water content of the seeds was 7.09% (mass fraction), and the dried seeds were sealed with double-layer aluminum foil paper and placed in Store at room temperature for 6 days in a desiccant filled with dried silica gel.

[0032] Before sowing, the super-dry treated and stored seeds were placed in a closed environment with increasing relative humidity in order to gradually increase the water content of the seeds. The environment of the rehydration treatment used in this embodiment is as follows: CaCl 2 A closed environment with a relative...

Embodiment 2

[0034] Put 5.0 g of Longdong alfalfa seeds into a nylon mesh bag with good air permeability, and place them evenly in a drying dish filled with silica gel. The ratio of seeds to silica gel is 1:10 (mass ratio), and then replace the silica gel every 24 hours. The silica gel was dried at a high temperature of 120°C to constant weight and cooled; the seeds were dried with silica gel in a sealed container at room temperature for 24 hours, and the water content of the seeds was 6.93% (mass fraction), and the dried seeds were sealed with double-layer aluminum foil paper, and placed in Store at room temperature for 30 days in a desiccant filled with dried silica gel.

[0035] Before sowing, the super-dry treated and stored seeds were placed in a closed environment with increasing relative humidity in order to gradually increase the water content of the seeds. The environment of the rehydration treatment used in this embodiment is as follows: CaCl 2 A closed environment with a relati...

Embodiment 3

[0037] Put 5.0 g of alfalfa seeds in Longdong alfalfa into a nylon mesh bag with good air permeability, and place them evenly in a drying dish filled with silica gel. The ratio of seeds to silica gel is 1:10 (mass ratio), and then replace the silica gel every 25 hours. The silica gel was dried at a high temperature of 120°C to constant weight and then cooled; the seeds were dried with silica gel in a sealed container at room temperature for 48 hours, and the water content of the seeds was 6.36% (mass fraction), and the dried seeds were sealed with double-layer aluminum foil paper and placed in Store at room temperature for 60 days in a desiccant filled with dried silica gel.

[0038] Before sowing, the super-dry treated and stored seeds were placed in a closed environment with increasing relative humidity in order to gradually increase the water content of the seeds. The environment of the rehydration treatment used in this embodiment is as follows: CaCl 2 A closed environmen...

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Abstract

The invention discloses an alfalfa seed pretreatment method for improving vigor of seedlings and saline-alkali resistance. The alfalfa seed pretreatment method comprises the steps of: firstly putting seeds in an air-permeable mesh bag, placing in a dry container filled with silica gel and sealing with aluminized paper, drying the seeds with the silica gel at the room temperature to reduce the water content of the seeds to be 4.59 to 7.09 percent, sealing the dried seeds with the aluminized paper, placing in a dry container filled with drying silica gel, and storing the seeds at the room temperature. Before seeding, the highly dried and stored seeds are sequentially placed in closed environments the relative humidity of which is increased in sequence, and the water content of seeds is improved gradually. The seeds are highly dried so that the vigor of seeds and the stress resistance of seedlings can be improved, thus the method is a simple, energy-saving and effective seed pretreatment method which can prolong the storage life of seeds. Simultaneously, the osmotic stress resistance of seeds in the germination period is enhanced, and the osmotic stress resisting function of seedlings in a saline environment is improved. The water saving effect and the drought tolerance are achieved in alfalfa cultivation by adopting a method of improving the seedling regularity and germinating speed.

Description

technical field [0001] The invention relates to a seed pretreatment method, in particular to an alfalfa seed pretreatment method for improving seedling vigor and saline-alkali resistance. Background technique [0002] Currently commonly used alfalfa seed pretreatment measures mainly include seed coat scratching, seed coating, chemical agent soaking and seed dressing, and various seed priming measures. Using physical methods to scratch the seed coat and increase the emergence rate is also very easy to introduce pathogenic bacteria, causing certain damage to the maintenance of seed vitality; the seed dressing process is complicated; the cost of seed coating is expensive; the more commonly used seed initiating reagents mainly include polymer Organic macromolecules such as ethylene glycol, cross-linked sodium acrylate, and polyvinyl alcohol, and small inorganic salt molecules such as potassium nitrate, sodium chloride, and calcium dichloride. Chemical agents mainly include gibbe...

Claims

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Application Information

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IPC IPC(8): A01C1/00
Inventor 霍平慧师尚礼李剑峰张淑卿陈力玉
Owner GANSU AGRI UNIV
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