aknox at ca0330.caso.ca.blm.gov
Tue Nov 12 19:38:15 EST 1996
On 9 Nov 1996 brateaver at aol.com wrote:
> In the Organic Method Primer UPDATE, in the chapter on vegetables, on pg
> 142, tepary bean is discussed. It is an extremely drought resistant bean.
> "These plants track the sun, angling their leaves PERPENDICULAR to the
> sun's rays, to slow loss from transpiration, inn early morning and late
> stressed common beans avoid sunlight by orienting their leaves PARALLEL to
> the sun rays.
> B. Rateaver
What is the mechanism used to track the sun on a daily basis?
More information about the Plantbio