Why does yellow leaf and dry tip appear when wheat is greening and jointing? What measures can be taken to prevent and control? Wheat is the key period for wheat yield and is also prone to pests and diseases, so planters should do this. The management of the period of time, the next small series said that the reason for the emergence of yellow leaves, dry tips and control measures during the wheat rejuvenation period, I hope to help everyone. First, the reason for the emergence of yellow leaves and dry tips in wheat during the jointing stage 1. Physiological deficiency The lack of trace elements (calcium deficiency, iron deficiency, zinc deficiency, etc.) in wheat supplements the physiologically dry yellow leaves of wheat to different degrees, affecting the normal physiological activities of wheat. 2. Infection of pests and diseases When the wheat is green to the jointing stage, it is the time when the wheat grows vigorously. Due to the natural conditions such as climate, weather and temperature, it is easy to infect pests and diseases (such as aphids, red spiders, etc.) and spread viral diseases. At the same time, wheat sheath blight, root rot, stem rot, powdery mildew and other diseases are also at a high incidence, which can cause the pathological yellow leaf dry tip of wheat. 3. Soil and water and fertilizer reasons Returning to the green manure and applying too much urea, causing excessive nitrogen fertilizer, inhibiting the absorption of phosphorus and potassium, will also cause yellow leaves of wheat, and soil drought is also one of the main reasons. Second, prevention measures 1. Timely supplement trace elements to avoid physiological deficiency. 2, pay attention to the field management of wheat, timely discovery, symptom prevention and control, reduce the phenomenon of yellow leaf dry tip. 3. Spraying a spray of three sprays in a timely manner. In daily management, planters should focus on the spraying of pests and diseases, and effectively manage the normal and healthy growth of wheat. You may be interested in the following recommended content about the wonderful pictures and popular comments on wheat rejuvenation and jointing management. Welcome to read. PCR Reagents
Real time PCR Kit for Monkeypox Virus is used for in vitro qualitative nucleic acid detection of Monkeypox Virus in Human serum, lesion exudate samples and scab specimens. Primer sets and FAM labeled probes are designed for specific detection of Monkeypox Virus, Human RNase P gene extracted concurrently with the test sample provides an internal control to validate nucleic extraction procedure and reagent integrity. Probe targeting human RNase P gene is labeled with VIC.
Pcr Reagents,Reagents Used In Pcr,Reagents Required For Pcr,Pcr Reagent Kit Changchun ZYF science and technology CO.,LTD , https://www.zyf-medical.com.jpg "Causes and control measures of yellow leaves and dry tips in wheat during greening and jointing")
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Causes and control measures of yellow leaves and dry tips in wheat during greening and jointing
Intended Use
The test is intended for in vitro qualitative detection of monkeypox virus
(MPXV) antigen in human oropharyngeal swab, whole blood or skin lesion
materials, including lesion exudate, lesion roofs, lesion crusts.
The test is used for monkeypox virus antigen test of monkeypox suspected
populations. Positive result of the antigen test can be used for early triage and
rapid management of suspected populations, but it cannot be used as
diagnosis basis of monkeypox infection. Negative results do not rule out
monkeypox infection and should not be used as the sole basis for treatment or
patient management decisions. Further nucleic acid detection should be
carried out for suspected population whose antigen test result is positive or
negative.
The test is only for professional use, not suitable for family test. The test result
is only for clinical reference and it is recommended to conduct comprehensive
analysis of the disease condition in combination with clinical manifestations of
patients and other laboratory tests.
Test Principle
According to the gold immunochromatographic test principle, the
nitrocellulose membrane is coated with MPXV mAb 2 and goat anti-mouse IgG
antibody, the gold conjugate pad is labeled with MPXV mAb 1. When the
antigen is contained in the sample, the antigen binds with the corresponding
gold labeled monoclonal antibody to form a compound, moving forward under
the chromatography, then combines with the coated antibody in the test line
to form Au-MPXV mAb 1-antigen-MPXV mAb 2 complex to condense into a red
band (Test line, T), indicating a positive result. When the sample does not
contain antigen, complex cannot be formed in the test line, and no red band
appears, indicating a negative result.
No matter whether the sample contains antigen or not, the gold labeled
monoclonal antibody will combine with the coated goat anti-mouse IgG
antibody at the control line to form a Au-MPXV mAb 1-goat anti-mouse IgG
antibody complex and condense into a red band (Control line,C)
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