(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.
From planting to harvest depends on the type and whether they were started from sets (50 to 60 days), seeds (110-125 days), or transplants (70 to 90 days). Harvest when one-forth to one-half of the tops of the onions have fallen down.