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Environmental Regulation Of Dormancy Loss In Lomatium Dissectum (Apiaceae) Seeds, Melissa Scholten, Jacklyn Donahue, Nancy L. Shaw, Marcelo Serpe
Environmental Regulation Of Dormancy Loss In Lomatium Dissectum (Apiaceae) Seeds, Melissa Scholten, Jacklyn Donahue, Nancy L. Shaw, Marcelo Serpe
Biology Faculty Publications and Presentations
Background and aims Lomatium dissectum (Apiaceae) is a perennial, herbaceous plant of wide distribution in Western North America. At the time of dispersal, L. dissectum seeds are dormant and have underdeveloped embryos. The aims of this work were to determine the requirements for dormancy break and germination, to characterize the type of seed dormancy, and to determine the effect of dehydration after embryo growth on seed viability and secondary dormancy.
Methods The temperature requirements for embryo growth and germination were investigated under growth chamber and field conditions. The effect of GA3 on embryo growth was also analyzed to determine the …