Diseases of vegetables seriously affect the quality and yield of vegetables. Therefore, it is an important measure to improve the yield and quality of melon vegetables by preventing the occurrence of diseases by disinfecting seeds of melon vegetables.
1, seed disinfection Wen Tang soaking method. Applicable to simple disinfection of various vegetable seeds. Disinfect the seeds into 55 degrees warm water, the water volume is 3-5 times the seed volume, stirring constantly 15-20 minutes, until the water temperature drops to 35 degrees, stop stirring, continue to soak 4-6 hours, and then germination . This method is beneficial to sowing seed before sowing, softening the seed coat or seed shell, can increase the germination of the seed, increase the germination rate of the seed, has a good killing power to the fungus or bacteria attached to the seed epidermis, can reduce the melon The occurrence of seedling-like diseases is conducive to seedlings, seedlings, and strong yields.
2, seed disinfection dry heat disinfection method. This method applies to tomatoes, eggplants and so on. The moisture content of the seeds was reduced to 7% or less, placed in an oven at 70-72 degrees, baked after 3 hours, and soaked with germination to kill the pathogens inside and outside the seeds. The technique required by this method is relatively high, and it is difficult to operate. It is only suitable for professional households with higher technical standards. This method has a good bactericidal effect and is completely bactericidal. It is especially good for the preventive effect of seeds that are carried within the seed coat.
3, seed disinfection hot water hot seed method. This method is applicable to seeds that are difficult to absorb water (such as wax gourd, watermelon, etc.). The water temperature is required to be 70-75 degrees. The water consumption is 3-5 times of the seed weight. The seeds must be fully dried. When hot seeds are used, 2 containers should be used. Topple back and forth, the first few movements should be fast, when the water temperature dropped to 55-60 degrees, instead of constantly stirring, keep this temperature 7-9 minutes better.
Seed disinfection liquid soaking method
Immerse the seed in the required concentration of the drug solution, remove it after 5-30 minutes, wash, air dry, or germinate a disinfection method. After soaking seeds, rinse them with clean water to avoid injury. The liquid dosage is 1 times of the seed weight. Commonly used agents are 1.0% copper sulfate or 1.0% potassium permanganate solution, 40% formaldehyde (formalin) 100 times and so on. Such as the control of hot pepper anthrax and bacterial scab, soaking with water for 4 to 5 hours, then soaking with 1.0% copper sulfate solution for 5__10 minutes, remove and wash with water to germination; control cucumber, watermelon anthrax and wilt disease, can be the first Seeds soaked with fresh water for 2-3 hours, then immersed in 100% formaldehyde 40%, 30 minutes after removal, washed with water after germination; prevention and treatment of tomato, eggplant brown vine disease, can be soaked in fresh water for 3-4 hours , immersed in 40% formaldehyde 100 times liquid, 20 minutes after removal, sealed in the container for 2-3 hours, and then washed with water can germination sowing; control of tomato, pepper virus diseases, available 10% trisodium phosphate solution Seed soaking for 20 minutes at room temperature, remove and soak in water after washing.
Seed disinfectant and seed dressing method
Seed sowing with dry seeds, this method can be used. The amount of the agent is generally the weight of the seed
SPA-100 Ophthalmic A-Scan/Pachymeter with macular recognition function, can accurately measure axial length, anterior chamber depth, lens thickness, as well as intra-ocular lens calculation.
And also with the central area and the peripheral areas gain automatic compensation capability, accurate measurement of central and peripheral corneal thickness, is widely used in the preoperative examination and postoperative effect evaluation of refractive surgery.
A scan probe: 10MHz import small size probe, built-in luminotron
Measuring range: 15mm-40mm
Measurement precision: ±0. 05mm; with macula lutea trace function
Measurement: Anterior chamber depth, lens thickness, vitreous body length, total length and average
Method of measurement: immersion and contact
Eye mode: Phakic/ Aphakic/Dense/ various IOL
IOL formula:SRK-II.SRK-T.BINKHORST- â…¡.HOLLADAY.HOFFER-Q.
HAIGIS
Enter the name & ID; easy to check archive
Storage: 10 cases, 5 readings each case
Output: A scan waveform and IOL calculation sheet
P scan probe: 20MHZ, angle of 45 degrees makes easier operation
Resolution: 5um
Measuring range: 150um~1500um
Display: SINGLE mode and MAP mode
Can display ultrasound waveform when measuring
Each group is the average of 20 measurements
Switch between IOP measured value and actual value
Can input name, ID and operator`s name
Others:
Large color liquid-crystal screen
Touch screen input, easy operation
Curve freezing: Manual/Auto mode, controlled by pedal
Built-in speed thermal printer
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