2, the fastness of the humidity: biological pesticides are also extremely sensitive to the humidity requirements. The greater the environmental humidity is, the more significant the efficacy of spraying biological agents is, especially for powdered biological agents. The reason is that bacterial spores are extremely resistant to dry environmental conditions, so only under conditions of high humidity can their medicinal effects be fully utilized.
3, can not ignore the conditions of the sun: ultraviolet rays in the sun have a lethal killing effect on spores, scientific experiments show that direct sunlight for 30 minutes, can kill 50% of spores in one fell swoop, after 1 hour of irradiation, the spores mortality is as high 80%, and ultraviolet radiation on parasporal crystals can also produce deformation and deteriorating effect, so choose to use after 4 o'clock in the afternoon or on cloudy days will greatly improve the effect.
4, the last pass is the rain conditions: spores are most afraid of heavy rain erosion, so it is necessary to spray according to the weather forecast, because the heavy rain will be flushed out of the spray of bacteria, loss of lethality. However, if the rain (light rain) is encountered after spraying (5-6 hours), it will not only reduce the efficacy, but it will increase the control effect. The original light rain is beneficial to the germination of spores, and once the food is eaten, the pests will accelerate. Its death.
The Thermal Cycler (also known as a thermocycler, PCR machine or DNA amplifier) is a laboratory apparatus most commonly used to amplify segments of DNA via the polymerase chain reaction (PCR).[1] Thermal cyclers may also be used in laboratories to facilitate other temperature-sensitive reactions, including restriction enzyme digestion or rapid diagnostics.[2] The device has a thermal block with holes where tubes holding the reaction mixtures can be inserted. The cycler then raises and lowers the temperature of the block in discrete, pre-programmed steps.
Thermal Cycler
Thermal Cycler,Multi Block Thermal Cycler,Gradient Thermal Cycler,Pcr Thermal Cycler
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