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Application of constant temperature and humidity incubator for vegetable seed germination experiment

The constant temperature and humidity incubator is suitable for the cultivation and preservation of bacteria, molds, microorganisms, antibiotics, and tissue cells; Plant cultivation and breeding experiments; Preservation and testing of biological products, drugs, vaccines, blood, and various specimens; Quality inspection of products and parts, as well as constant temperature and humidity tests for other purposes. Using traditional methods to promote germination is difficult to control due to environmental conditions, resulting in uneven germination, low seedling rate, and easy occurrence of seed burning and rotting. Therefore, it is important to choose suitable germination equipment. This experiment uses a constant temperature and humidity incubator to promote seed germination under suitable temperature, moisture, and oxygen conditions, allowing the seeds to absorb and breathe, increasing enzyme activity, promoting metabolism, and improving germination potential and germination rate. The selection method of vegetable seed germination equipment is introduced as follows.
1、 Select equipment capacity and temperature control accuracy
At present, the germination equipment on the market includes wall insulated germination rooms and insulated soft sheds, with a planting capacity of several thousand liters or more, which can be used for large-scale seedling bases. A floor standing artificial climate chamber with fully computer-controlled temperature, humidity, lighting, and ventilation is used for germination, seedling cultivation, tissue culture, and periodic cultivation, suitable for laboratory use. The temperature control accuracy is represented by temperature deviation and its fluctuation. The precision of digital temperature controllers is relatively high, with a deviation and fluctuation of about ± 0.5 ℃.
2、 Pay attention to the humidity in the germination room
Due to low humidity, seeds are difficult to germinate, and high humidity can easily rot. Therefore, high-end climate chambers are equipped with humidity control devices, which can maintain a relative humidity between 60% and 85%. However, simple germination equipment does not have a humidity control device, and its humidity is usually ensured by two measures: one is to use an electric heating tube to directly boil water and generate steam to heat the germination chamber, and its relative humidity changes little with temperature, generally maintaining at 60% to 85%.
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