Symptoms are also referred to as Sarcogitosis. Causes serious mosaic or yellow spots, long-and-short lines or chlorotic mottle, dwarfing plants, and high or low levels of parting, causing varying degrees of necrosis. Some birth death or twisted stems and leaves, turning up and down the stem section, causing plant scattered, it is known as mad or bruises. Distributed in the Northwest Wheat District.
The pathogen, wheat streak mosaic virus, is abbreviated as WSMV, and it is called wheat mosaic virus, which belongs to the rhabdovirus group. The virions are long and rod-shaped, with a size of 625-72515-18 (nm), a passivation temperature of 54°C, and a dilution limit of 100-10000 times. The virus contains single-stranded RNA. Can parasitic wheat, barley, wolfberry fruit, oats, rye, millet, corn and so on.
Transmission routes and disease conditions The virulence is transmitted by the leafhoppers. After the nymphs receive the virus, they can transmit the virus for life. But without egg poisoning. It is easy to get sick from the field near Putian, and the incidence of early emergence of wheat before the harvest of Scorpion was heavy.
Prevention and control methods (1) In the area where the plague occurs, the wheat fields should be far away from the razor field. (2) Suitable sowing should not be premature.
Medical ultrasound (also known as diagnostic sonography or ultrasonography) is a diagnostic imaging technique based on the application of ultrasound. It is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs. Its aim is often to find a source of a disease or to exclude pathology. The practice of examining pregnant women using ultrasound is called obstetric ultrasound, and was an early development and application of clinical ultrasonography.
Ultrasound are sound waves with frequencies which are higher than those audible to humans (>20,000 Hz). Ultrasonic images, also known as sonograms, are made by sending pulses of ultrasound into tissue using a probe. The ultrasound pulses echo off tissues with different reflection properties and are recorded and displayed as an image.
Many different types of images can be formed. The most common is a B-mode image (Brightness), which displays the acoustic impedance of a two-dimensional cross-section of tissue. Other types can display blood flow, motion of tissue over time, the location of blood, the presence of specific molecules, the stiffness of tissue, or the anatomy of a three-dimensional region.
Compared to other dominant methods of medical imaging, ultrasound has several advantages. It provides images in real-time and is portable and can be brought to the bedside. It is substantially lower in cost than other imaging modalities and does not use harmful ionizing radiation. Drawbacks include various limits on its field of view, such as the need for patient cooperation, dependence on physique, difficulty imaging structures behind bone and air or gases,[note 1] and the necessity of a skilled operator, usually a trained professional.
Full-Digital Ultrasound Machine
Medical Full-Digital Pregnancy Fetal Diagnostic，Trolley Ultrasound Machine for Sale，Mindray Ultrasound Machine,Full-Digital Laptop Ultrasound Machine
Unimedsume Trading Co., Ltd , https://www.ums-labmed.com