Thanks for the tip on seed sources.
  There are some good plant physiology texts.
  The old standard is:
     Plant Physiology by Salisbury & Ross from Wadsworth Pubs.
  A new and very "modern-looking" book is:
     Plant Physiology by Taiz & Zeigler from Benjamin Cummings Pubs.
  Since I am really more interested in plant hormones and development
  that biochemistry and photosynthesis, I also like:
  Advanced Plant Physiology by Malcolm Wilkins from Pitman Pubs.  but it
  is long in the teeth and needs a second edition...maybe one is already
  available. 
  Hope this helps!    ross
Ross Koning                             Internet: Koning@ecsuc.ctstateu.edu
Biology Department                    Phone: (203)-465-5327
Eastern CT State University         Fax: (203)-465-5213
Willimantic, CT  06226  USA