dormancy; was :Re: Hippeastrum papilio

J.E. Shields
Sun, 02 Dec 2012 10:17:36 PST
Hi Jim,

"Dormant" is not to be confused with "deciduous."

"Dormant" is a physiological state, in which many processes present in the 
actively growing plant are shut down to low levels, while other processes 
not usual during active growth are ramped up.

"Deciduous" merely refers to the absence of green leaves.

Daylily growers seem to have a particularly hard time with this distinction.

Jim Shields, daylily grower

At 09:17 AM 12/2/2012 -0800, you wrote:

>Many, probably most, North Temperate bulbs produce their foliage in one 
>spurt of growth in late winter or early spring. They spend the rest of the 
>growing season with those same leaves and do not continually produce new 
>foliage. Yet I've never heard anyone call that condition dormancy.
>Why are people saying Hippeastrum papilio is dormant during a period when 
>it has fully functional leaves?
>Jim McKenney

Jim Shields             USDA Zone 5
P.O. Box 92              WWW:
Westfield, Indiana 46074, USA
Lat. 40° 02.8' N, Long. 086° 06.6' W

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