. Colchicine in agriculture, medicine, biology, and chemistry. Colchicine; Colchicine. Fig. 13.1—Triploid watermelon. Propagation of triploid seed by crossing diploid and tetraploid lines. Use of colchicine to make tetraploid stocks. Fruits from diploid, triploid, and tetraploid stocks. (Adapted from Kihara) as tetraploid and the male as diploid pollinator are successful. Re- ciprocal procedures do not succeed. As in autotetraploids, the size of flowers increases in proportion to the increase in chromosome number. This relation holds for tetra- ploid pollen and stomata. Triploid pollen is vari
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. Colchicine in agriculture, medicine, biology, and chemistry. Colchicine; Colchicine. Fig. 13.1—Triploid watermelon. Propagation of triploid seed by crossing diploid and tetraploid lines. Use of colchicine to make tetraploid stocks. Fruits from diploid, triploid, and tetraploid stocks. (Adapted from Kihara) as tetraploid and the male as diploid pollinator are successful. Re- ciprocal procedures do not succeed. As in autotetraploids, the size of flowers increases in proportion to the increase in chromosome number. This relation holds for tetra- ploid pollen and stomata. Triploid pollen is variable in size and can- not be made to fit the proportional increase as chromosome numbers increase. Many grains are empty while others are full and may be huge. The 3X seed is a tetraploid seed with triploid embryos obtained from a diploid pollination. The SX seeds are slightly thinner, averag-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Eigsti, O. J. (Orie Jacob), 1908-; Dustin, Pierre. Ames, Iowa State College Press