The role of the seed coat in phytochrome-controlled seed germination in Lactuca sativa L. cv. Grand Rapids
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The effect of scarification with sodium hypochloride on light sensitivity in seeds of Lactuca sativa L. cv. Grand Rapids is presented in the paper. Light-requiring lettuce seeds germinated in both dark and continuous light after scarification and 36°C pre-incubation restored light sensitivity at 25°C. Curves of dose-response indicated that chemical scarification induced a change in the control of seed germination from Low Fluence Response to the Very Low Fluence Response. Pre-incubation at 36°C return the control to the Low Fluence Response of phytochrome action.
How to cite this document
Takaki, Massanori; Pegolo Gama, Lúcia Helena. The role of the seed coat in phytochrome-controlled seed germination in Lactuca sativa L. cv. Grand Rapids. Seed Science and Technology, v. 26, n. 2, p. 355-362, 1998. Available at: <http://hdl.handle.net/11449/224108>.