Neal,
My experience with supermarket spinach - I havebought it in Australia,
Germany and the USA - is that if it is hydropnically grown it exhibits
lousy rates of photosynthesis and contains very low levels of chloroplast
proteins. My suspicion is that you are really buying expensive water! I
wonder if the varieties are polyploid as well?
Joe
CAM rules!.....but what ARE the rules?
Joe Holtum
Department of Tropical Plant Sciences,
James Cook University of North Queensland,
Townsville, North Queensland 4811
Telephone:- (077) 81 4391 (lab); 79 5252 (home)
Facsimile:- (077) 25 1570
electronic mail:- joseph.holtum at jcu.edu.au