Add Yahoo as a preferred source to see more of our stories on Google. There’s something almost uncanny about the moment a chrysanthemum decides to bloom in autumn. No calendar hangs on a greenhouse ...

Part I. Photoperiodism in plants and fungi -- Overview / David E. Somers -- Photoperiodic flowering in the long-day plant Arabidopsis thaliana / Joanna Putterill, Chiristine Stockum, and Guy Warman -- ...

Climate change is predicted to promote species' range shifts and invasions from southern latitudes northwards. However, climate change does not affect the seasonal variation in day length. The length ...

Forecasts of species range shifts as a result of climate change are essential, because invasions by exotic species shape biodiversity and therefore ecosystem functions and services. Ecologists have ...

Plants have no calendar or brain, yet they can sense the arrival of spring through photoperiodism – their ability to measure ...

Dedicated at the U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center on October 21, 2015. For thousands of years, humankind has recognized that ...

Surprise! Today is National Poinsettia Day in the United States. During just a few short weeks in November and December, Americans will buy more than 35 million of the bright beauties. Sales figures ...

THE announcement of the formative effect of such a dilute factor as relative length of day and night, introduced by Garner and Allard 1 as photoperiodism, has become the subject for many studies by ...