Dormancy is a arrested plant growth. It is a survival strategy exhibited by some temperate climate species, which enables them to survive winters. In geography, temperate latitudes of the globe lie between the tropics and the polar circles. ... In biology, a species is the basic unit of biodiversity. ... In many parts of the world, winter is associated with snow. ...

These species have a biological clock that tells them to slow activity and to prepare soft tissues for an onslaught of freezing temperatures. After a normal growing season, dormancy can be brought on by decreasing temperatures and shortened daylength. It can also be delayed by if summer temperatures and daylength are maintained.

When a mature seed is placed under favorable conditions and fails to germinate, it is said to be dormant. There are two basic types of dormancy. The first, seed coat dormancy or external dormancy, is caused by the presence of a hard seed covering or seed coat that prevents water and oxygen from reaching and activating the embryo. The second type of dormancy, embryo dormancy or internal dormancy, is caused by a condition of the embryo which prevents germination. Water (from the Old English word wæter; c. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Chalcogens Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ... In a botanical sense, germination is the process of emergence of growth from a resting stage. ...

Species that have well-developed dormancy needs can be tricked to some degree, but not fully. For instance, if you give a Japanese maple (Acer palmatum) an eternal summer by bringing it in the house, it will grow continuously for as long as two years. After a maximum period of sustained growth, a temperate climate plant will automatically go dormant no matter what the season or condition. Deciduous plants will lose their leaves, evergreens will curtail all new growth. This is very stressful to the plant and usually fatal. It will be 100% fatal if the plant does not receive the necessary period of cold temperatures required to break the dormancy. Most plants will require a certain number of hours of "chilling" which is temperatures between about 32 and 50 degrees Fahrenheit to be able to break dormancy. Binomial name Acer palmatum Thunb. ... Deciduous means temporary or tending to fall off (deriving from the Latin word decidere, to fall off). ... A Silver Fir shoot showing three successive years of retained leaves In botany, an evergreen plant is a plant which retains its leaves year-round, with each leaf persisting for more than 12 months. ...