Hi, i'm making a thesis about the fotosyntheses of waterplants. I wonder,
wich plants would be great to start with. Preferable would be plants where
you can easely see the differences in grow, health, shortages of some
elements, ....

"Seba" wrote in message ...
Hi, i'm making a thesis about the fotosyntheses of waterplants. I wonder,
wich plants would be great to start with. Preferable would be plants where
you can easely see the differences in grow, health, shortages of some
elements, ....



Perhaps some fast growing stem plants could be useful for this experiment. I
remember when I first started to fertilize with CO2 they showed most noticeable
increase in growth.

Good luck,

--
Marvin
hlavac (at) rogers (dot) com

"Seba" wrote in message ...
Hi, i'm making a thesis about the fotosyntheses of waterplants. I
wonder,
wich plants would be great to start with. Preferable would be plants
where
you can easely see the differences in grow, health, shortages of some
elements, ....

Some considerations. You want fast growth for the purposes of
comparative measurements (no Anubius). You probably do not want a plant
too dependant on it's roots for nutrition (adds another variable
difficult to control). You want something which permits numerical
observations (counting leaves, spaces between leaves, size of new leaves
etc). If you have a local source, I would suggest some type of an
Anachris or Elodea, but I'm not really a plant person, just an occasional
de-lurker here ;o).

NetMax

"Seba" wrote in message ...
Hi, i'm making a thesis about the fotosyntheses of waterplants. I wonder,
wich plants would be great to start with. Preferable would be plants where
you can easely see the differences in grow, health, shortages of some
elements, ....

Egeria,Hydrillia, Coontail/hornwort, Riccia, Water sprite all make
good subjects for submersed study. Generally, some type of screen it
placed to keep them from any access to the air or surface.

Many/most plants are floating or emergent, only a few are true
submersed plants and these have roots. Mosses do not have true roots,
Riccia has no roots. The mosses may work also.

Regards,
Tom Barr