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Winter   [ Botany - Agronomy - Meteorology - Physiology ]

Dictionary of botanic terminology - index of names

  Winter is one of the four seasons of temperate zones. The season of the year during which the weather becomes colder and plants stop growing: The season of dormancy.  
The season of the year between Autumn and Spring when plants stop to vegetate. Most plants go through a dormancy phase this time of year.
It begins with the
the winter solstice (around December 21 in the Northern Hemisphere, and June 21 in the Southern Hemisphere), and ends with the vernal equinox (around March 21 in the Northern hemisphere and September 21 in the Southern hemisphere) It runs from December to february in the Northern Hemisphere, and from June to August in the Southern Hemisphere.

Winter is the
season of the year in which the sun shines most obliquely upon any region and days become shorter ( See: Photoperiod), The coldest season  when temperatures drop and snow (if any) begins to fall. Plants undergo physiological changes that will allow them to withstand freezing temperatures. (see: Winter rest, Cold resistance).
In normally snow
less areas, a short and mild "winter" may begin as lately as January. In subtropical zones the differences are very subtle, and in tropical ones none at all. In the subarctic areas winter start early in October or even September, or in May in the subantarctic
See also: Winter rest, Cold resistance  
To winter  [ Horticulture]
Intransitive verb: past and  past participle wintered ,  present participle wintering, 3rd person present singular winters)
  To shelter, keep, or care for during the winter: wintering the plants in the greenhouse.  





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