Look at the variety. High-quality fruit tree seedlings have strong affinity for rootstocks and scions. When purchasing, they should ask the source of the scion of the seedlings cultivated by the nursery unit, or contact the unit of the scion to determine the purity of the scion. Specific purchase should be done in a suitable place, suitable tree, suitable variety. Second look at the root system. High-quality fruit tree seedlings should have complete, dense, and evenly distributed root systems. Lateral roots with a root diameter of 0.4 cm or more should have at least three or more roots, and certain fibrous roots. Root lengths of 20 cm to 30 cm are appropriate. Three to see plant height type. High quality fruit tree seedlings generally require a height of about 1 meter, stem thickness requirements of 0.8 cm to 1 cm, plant type erect without bending, the slope does not exceed 15 degrees, within the plastic belt with 4 to 5 good Branches and branches should be strong and full, with green stalks, good elasticity, and no damage. Four to see sprouts. High-quality fruit tree seedlings should have more than 6 full-filled leaf buds in the range of 40 cm to 80 cm below the fixed position, so as to be able to issue better shoots after drying. If it is an evergreen sapling, the leaf should be intact without falling, the leaf color is dark green, there is no disease spot, and the top bud is full and full, and there are more than 8 leaf buds that are full and full of buds within the shaping zone and within the shaping zone. Five to see healing mouth. For grafted fruit saplings, the joints of the rootstock and scion should be completely healed. The degree of healing of sap-jointed seedlings should reach 1/2 or more. If budding fruit trees are not well-healed, other conditions are qualified and should not be purchased. Six to see pests and diseases. All nursery stock with mosaic disease, rust, and various quarantine pests should not be purchased. Seven to see if there are no autumn shoots. Choose a fruit tree seedling with smooth surface, less hair, and no autumn shoots to improve the ability to withstand cold in winter. Eight see the skin wrinkle dehydration. Fresh skin-colored fruit trees should be selected, preferably seedlings that are currently plucked from the nursery. Seedlings are wrinkled, indicating that they have been dehydrated. Such seedlings are difficult to survive after planting. Nine to see whether the young old seedlings. Old roots are underdeveloped, internodes are short, branches are not stretched, they grow for many years in the nursery, they are premature, they grow slowly, and they are not suitable for purchase. Ten to see the distance. The transport distance should not be far away, and the best way to transport non-distant transport is to bring soil, or muddy roots, and use plastic sheets or wet grass bags to prevent seedlings from losing water and affect the survival rate.
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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
A/P Ophthalmic Scanner,Eye Ultrasound Scanner A Probe,Ophthalmic With Pachymeter Ap Probe,A Ophthalmic Diseases Check Ultrasound
Guangzhou Sonostar Technologies Co., Limited , http://www.sonoeye.com