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Improved method for seed priming

A seed and stage technology, applied in the direction of seed and rhizome treatment, application, germination equipment, etc., can solve the problems of limited oxygen availability, negative effects, etc.

Active Publication Date: 2017-08-18
ROBUST SEED TECH A&F
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limiting oxygen availability during incubation can negatively affect priming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2-6- 1

[0098] Examples 2-6 - General Considerations

[0099] Immersion and incubation times were determined in the same manner as in Example 1.

Embodiment 2-6

[0100] For Examples 2-6, the seeds were placed in containers made of stainless steel mesh through which water and gas could exchange freely. The container and inner seeds are placed in a container containing water such that the seeds are submerged in the water. The container is tumbled continuously to ensure that all seeds are evenly wetted. Fresh air is continuously supplied to the water in the vessel during the maceration. Wetting /

[0101] After soaking the seeds, the seeds were removed from the water and centrifuged at RCF=500 for 6 minutes to reduce the moisture content of the seeds, and then to reduce the moisture content of the seeds again in air at 35% relative humidity. In the step of reducing the moisture content of the seeds, the moisture content of the seeds is reduced by 2-5 percent units.

[0102] After reducing the moisture content of the seeds, return the seeds to the container. Place the container in the incubator unit and incubate for the predetermined in...

Embodiment 2

[0104] Example 2 - Effect of Levels of Degraded Moisture Content (MC) on Initiation Efficacy

[0105] During the seed treatment process (aspiration, MC reduction, incubation and drying), the intermediate MC reduction step is very important. In order to better understand the MC reduction step, the following exemplary experiments were performed:

[0106] 1. Put 25g of seeds in water at 20°C for a predetermined soaking time, and soak the seeds with water.

[0107] 2. Subsequently, the MC of the seeds was reduced in the following manner (relative humidity / air flow and at 25° C.) such that the MC of the soaked seeds reached the following levels within 30 minutes:

[0108]a. Reduce the MC of soaked seeds by 1-5% units

[0109] b. Reduce the MC of soaked seeds to about 25% of the MC (dry weight basis)

[0110] 3. Incubate the MC-reduced seeds in the following environment, so that the MC fluctuation range of the seeds does not exceed 1-5% during the incubation process. This incuba...

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Abstract

Disclosed is a method of priming dry seeds, wherein said seeds firstly wetted in a manner such that the seed absorbs at least 75 wt.% of the amount of water required by the seed for entering phase II of water uptake. Subsequently, the moisture content of the seed is reduced by at least 1 percentage unit, and in manner such that the resulting moisture content of the seed still is at least 25%. At last is the seed incubated in such a manner that: the weight of the seed during the incubation remains at least 80%, such as at least 90% or at least 95%, of the weight of the seed before the incubation; and the moisture content (dry weight based) of the seed during the incubation remains at least 25% during at least 25% of incubation time.

Description

technical field [0001] The present invention relates to a method of priming seeds comprising wetting the seeds in an aqueous solution followed by incubation (incubation). Furthermore, the invention relates to a seed obtainable by the method, and a plant grown from the seed. Background technique [0002] The effect of seed quality on the final yield of a crop is well known. Seed priming is a natural and environmentally friendly method for improving seed performance. It is effective on both high and low germinability seeds. In seed priming, the basic metabolic reactions required for seed germination take place under conditions of high humidity, adequate oxygen, and appropriate temperature. During priming, the germination process is interrupted by drying the primed seeds, usually before seed emergence (radicle protruding from the seed coat), ie before the germination process is complete. After drying, primed seeds can be packaged, stored, distributed and planted in the same...

Claims

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Application Information

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IPC IPC(8): A01C1/00
CPCA01C1/00A01C1/02
Inventor 沈彤云
Owner ROBUST SEED TECH A&F
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