Seed Swelling
A method of finding the swelling capacity of seeds. Dry beans are placed in a clay cup with holes to let in water. The cup is placed on a pan of water. On top of the seeds is a cup with a piece of wood. On top of this is a three-corned file or iron piece that the iron bar will rest on. The bar is held at eyebolt a at one end. At the other end are iron weights. A ruler is placed at f and is marked where the bar crosses it. (Part of the outer cup is cut away to show the seeds.) When the seeds swell, the bar will rise, resulting in more weights being needed on the bar. At the end, a person ties rope to point b and lifts it to see if he/she can lift as much weight as the seeds.
Keywords
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Plant PropagationSource
Hilgard, E. W. and W. J. V. Osterhout Agriculture for Schools of the Pacific Slope (New York, NY: The MacMillian Company, 1910)
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