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 -- ...

Have you ever heard the word Photoperiodism and, if so, do you know what it means? Photoperiodism is the effect of the relative length of daylight exposure upon the growth and flowering (reproduction) ...

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 ...

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 ...

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 ...

DURING the past five years, work has been in progress at Rothamsted on rearing in the laboratory a number of plant-feeding insects. One of the aims has been to maintain supplies of insects in large ...