long-day photoperiodism, flowering
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In order to time reproduction to coincide with favorable conditions, animals use environmental cues to up- and down-regulate the… Expand Menaker, M. : Extraretinal light perception in the sparrow, I. Entrainment of the biological clock. Prec. nat. Acad. Sci. (Wash… Expand SummaryGarden warblers (Sylvia borin) are migrating European passerines that spend the winter in tropical Africa. To investigate… Expand SummaryPhotoperiodic respose, as assessed by a regression technique, exhibited complete dominance averaged over the crosses of an… Expand Thirty-six Hibiscus L. species were grown for 20 weeks under three lighting treatments at 15, 20, or 25 ± 1.5 °C air temperature… Expand