(1942) used FITC-labeled antibodies to identify Pneumococcal antigens in infected tissue. Since then, improvements have been made in protein conjugation, tissue fixation methods, detection labels and microscopy, making immunohistochemistry a routine and essential tool in diagnostic and research laboratories.
Check daily for germination. Onion seeds germinate in five to 14 days, depending on the cultivar and the soil temperature. Move to a sunny location and keep the tops trimmed to a height of 4 inches. Keep soil moist.
Seeds germinate when the soil reaches a specific temperature range surrounding an optimal temperature. The closer the temperature is to the optimal temperature for seed germination, the more seeds will germinate in the shortest amount of time.For example, although 90 percent of all onion seeds will germinate if planted at 32 degrees Fahrenheit, they will take up to 136 days to sprout.By contrast, 99 percent of onion seeds will germinate if planted at 68 degrees Fahrenheit and will take less than five days to grow.eeds germinate when the soil reaches a specific temperature range surrounding an optimal temperature. The closer the temperature is to the optimal temperature for seed germination, the more seeds will germinate in the shortest amount of time.