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Full-Text Articles in Plant Sciences
Germination Season And Watering Regime, But Not Seed Morph, Affect Life History Traits In A Cold Desert Diaspore-Heteromorphic Annual, Juan J. Lu, Dun Y. Tan, Jerry M. Baskin, Carol C. Baskin
Germination Season And Watering Regime, But Not Seed Morph, Affect Life History Traits In A Cold Desert Diaspore-Heteromorphic Annual, Juan J. Lu, Dun Y. Tan, Jerry M. Baskin, Carol C. Baskin
Biology Faculty Publications
Seed morph, abiotic conditions and time of germination can affect plant fitness, but few studies have tested their combined effects on plasticity of plant life history traits. Thus, we tested the hypothesis that seed morph, germination season and watering regime influence phenotypic expression of post-germination life history traits in the diaspore-heteromorphic cold desert winter annual/spring ephemeral Diptychocarpus strictus. The two seed morphs were sown in watered and non-watered plots in late summer, and plants derived from them were watered or not-watered throughout the study. Seed morph did not affect phenology, growth and morphology, survival, dry mass accumulation and allocation or …
What Kind Of Seed Dormancy Might Palms Have?, Jerry M. Baskin, Carol C. Baskin
What Kind Of Seed Dormancy Might Palms Have?, Jerry M. Baskin, Carol C. Baskin
Biology Faculty Publications
Palm diaspores are reported to have various kinds of dormancy. However, (1) the embryo is underdeveloped; (2) the endocarp is water permeable; and (3) the diaspores take a long time to germinate. Thus, we conclude that the diaspores of the majority of palm species have morphophysiological dormancy (MPD). The ones that do not have MPD are morphologically dormant.