Safety drying method and drying device for long-term seed storage

A drying method and long-term preservation technology, which is applied in the direction of drying gas arrangement, fruit hanging device, botanical equipment and method, etc., can solve the problems of reduced seed germination rate and inability to meet the requirements of long-term storage of seeds, etc.

Active Publication Date: 2012-07-04
SHANDONG CROP GERMPLASM CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the existing seed drying methods and equipment cannot meet the requirements for long-term storage of seeds, and the germination rate of seeds will also be significantly reduced.

Method used

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  • Safety drying method and drying device for long-term seed storage
  • Safety drying method and drying device for long-term seed storage
  • Safety drying method and drying device for long-term seed storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0038] Embodiment 3 is the drying device used to dry the seeds described in Embodiment 1 and 2 respectively, wherein the refrigerator uses Copeland ZB21Q turbo refrigeration compressor 3HP and Kleites evaporator DL-15, and the dehumidifier uses Proflute Wheel dehumidifier M120, the temperature and humidity controller uses Japan Shimaden temperature and humidity controller SR90, and the drying oven uses Thermo incubator 6LM.

Embodiment 1

[0040] The seeds to be dried in this embodiment are rice seeds: the variety of rice seeds is Shengdao 301, with a weight of 250g and a water content of 16.2%.

[0041] A safe drying method suitable for long-term storage of rice seeds, the method steps are as follows:

[0042] 1) Pre-drying

[0043] The seeds are placed in an environment where the relative air humidity is lower than 30% and dried until the water content of the seeds is 13.4wt%; before the seeds are pre-dried as described in step 1), the seeds are first packed into an air-permeable nylon mesh bag or paper bag , the amount of seeds contained in each nylon mesh bag or paper bag is 250g, and the loaded seeds are stacked, and the number of layers of the stack is 4 layers; the paper used for the paper bag is 80g / m 2 kraft paper;

[0044] 2) preheating

[0045] Preheat the pre-dried seeds: the preheating temperature is 35°C, and the preheating time is 2h;

[0046] 3) dry

[0047] Use dry air to dry the preheated ...

Embodiment 2

[0053] The seeds to be dried in this embodiment are corn seeds: the corn seed variety is Zhengdan 958, with a weight of 500 g and a water content of 15.7%.

[0054] A safe drying method suitable for long-term preservation of corn seeds, the method steps are as follows:

[0055] 1) Pre-drying

[0056] The seeds are placed in an environment where the relative air humidity is lower than 30% and dried until the water content of the seeds is 13 wt%; before the seeds are pre-dried as described in step 1), the seeds are first packed into a breathable nylon mesh bag or paper bag, The amount of seed contained in each nylon mesh bag or paper bag is 500g, and the packed seeds are stacked, and the number of layers of the stack is 4 layers; the paper used for the paper bag is 80g / m 2 kraft paper;

[0057] 2) preheating

[0058] Preheat the pre-dried seeds: the preheating temperature is 35°C, and the preheating time is 3h;

[0059] 3) dry

[0060] Use dry air to dry the preheated seeds...

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Abstract

The invention relates to a safety drying method and a drying device for long-term seed storage. Five steps of predrying, preheating, drying, tempering and packaging are performed to seeds to safely reduce water content of the seeds to 5-7%, and the seeds are then quickly and hermetically stored in a seed box or seed bag to facilitate next low-temperature storage. The invention further provides the drying device used with the drying method. Main instruments such as a drying chamber, a drying box, a refrigerator, a dehumidifier, a temperature-humidity controller and the like are reasonably distributed and utilized, so that the drying process is optimized and drying efficiency is improved.

Description

technical field [0001] The invention relates to a safe drying method and drying device suitable for long-term storage of seeds, belonging to the technical field of seed drying. Background technique [0002] The water content of newly harvested seeds is as high as 25% to 45%. The respiration intensity of the seeds is high, and the heat and water released are large, which can easily lead to anaerobic respiration, mildew, and insect activity and reproduction, which will reduce the quality of the seeds. Therefore, the seeds must be dried in time. Therefore, drying is one of the necessary conditions for the safe storage of crop seeds. There are usually two types of seed drying methods: natural drying and artificial drying: natural drying is to reduce the level of seeds by sun exposure, ventilation and airing, etc. Natural drying is greatly affected by climatic conditions and is not suitable for mass seed production; artificial drying is By increasing the temperature of the air, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01F25/00F26B21/06
Inventor 张晓冬李润芳王栋李湛李娜娜隋学艳段乃彬张煜孔维国丁汉凤
Owner SHANDONG CROP GERMPLASM CENT
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