A doffer is someone who removes bobbins, pirns or spindles holding spun fiber such as cotton or wool from a spinning frame and replaces them with empty ones. Historically, spinners, doffers, and sweepers each had separate tasks that were required in the manufacture of spun textiles. From the early days of the industrial revolution, this work, which requires speed and dexterity rather than strength, was often done by children. After World War I, the practice of employing children declined, ending
For a plant organ to bend in response to a stimulus, differential growth of cells on either side of the organ is required. For example, for the stem of a plant to bend toward a light source, cells on the shaded side of the stem near the shoot tip must elongate faster than cells on the lighted side.
This restricts the airflow around the plant and creates an environment favorable to fungus. High humidity and a few cool nights (68-77 degrees) added to the mix and you've got heaven for fungus. Small circular spots appear on the upper side of the leaf. Septoria usually appears first at the base of the plant. Here, the humidity is the highest and the spores can easily splash up from the soil. The spots have dark edges and a grayish center. In the spot are small black or brownish spots: these are the fungal spores, ready to mature and spread to other plants.