Re: Compenstaion Points

• To: Aquatic-Plants at actwin_com
• Subject: Re: Compenstaion Points
• From: Elizabeth Worobel <eworobe at cc_UManitoba.CA>
• Date: Sat, 23 Mar 1996 07:57:53 -0600 (CST)
• Cc: Aquatic-Plants at actwin_com
• In-Reply-To: <199603230519.AAA28812 at looney_actwin.com>

Light compensation points for aquatic plants have been measured in the 
range of about 15 to 80 umol/m2/sec PAR (about 1 to 4% full sunlight 
intensity). This is low, which indicates, as Paul mentioned, that most 
submerged aquatic plants are shade plants. Photosynthesis is saturated at 
between 300 and 1000 umol/m2/sec PAR (about 15 to 50% full sunlight). 
There is also a CO2 compensation point for plants ... sorry no data at my 
fingertips. This is more complicated because many aquatic plants can 
utilize bicarbonate.

Dr. dave.

• Prev: Hydrostemma(Barclaya) Motleyi
• Next: Re: Dupla Fertilizers
• Index: Aquatic-Plants Mailing List