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Full-Text Articles in Plant Sciences
Why Large Seeds With Physical Dormancy Become Nondormant Earlier Than Small Ones, Ailton G. Rodrigues-Junior, Ana Caroline M. P. Mello, Carol C. Baskin, Jerry M. Baskin, Denise M. T. Oliveira, Queila S. Garcia
Why Large Seeds With Physical Dormancy Become Nondormant Earlier Than Small Ones, Ailton G. Rodrigues-Junior, Ana Caroline M. P. Mello, Carol C. Baskin, Jerry M. Baskin, Denise M. T. Oliveira, Queila S. Garcia
Biology Faculty Publications
Under natural conditions, large seeds with physical dormancy (PY) may become water permeable earlier than small ones. However, the mechanism for this difference has not been elucidated. Thus, our aim was to evaluate the traits associated with PY in seeds of Senna multijuga (Fabaceae) and to propose a mechanism for earlier dormancy-break in large than in small seeds. Two seedlots were collected and each separated into large and small seeds. Seed dry mass, water content, thickness of palisade layer in the hilar and distal regions and the ratio between palisade layer thickness (P) in the lens fissure and seed mass …
Effects Of Predispersal Insect Seed Predation On The Early Life History Stages Of A Rare Cold Sand-Desert Legume, Yi J. Han, Jerry M. Baskin, Dun Y. Tan, Carol C. Baskin, Ming Y. Wu
Effects Of Predispersal Insect Seed Predation On The Early Life History Stages Of A Rare Cold Sand-Desert Legume, Yi J. Han, Jerry M. Baskin, Dun Y. Tan, Carol C. Baskin, Ming Y. Wu
Biology Faculty Publications
Seed predation by insects is common in seeds of Fabaceae (legume) species with physical dormancy (PY). However, the consequences of insect seed predation on the life history of legumes with PY have been little studied. In the largest genus of seed plants, Astragalus (Fabaceae), only one study has tested the effects of insect predation on germination, and none has tested it directly on seedling survival. Thus, we tested the effects of insect predation on seed germination and seedling growth and survival of Astragalus lehmannianus, a central Asian sand-desert endemic. Under laboratory conditions, seeds lightly predated in the natural habitat …