1. Take a 1 gallon jar with sealable lid or covered with parafilm. 2. fill with water 3. place plant sample inside an inverted jar submersed in the 1 gallon = jar. (this way light goes through). 4. use a standard oxygen/carbon dioxide meter used in aquatic ecology to = monitor water quality (must seal around the chord. =20 This would give you a rough estimate if your meter is good and the plant = sample large enough. As O2 is emitted it will diffuse into the water = raising the level, as CO2 is consumed it will diffuse from the water = into the air found in the inverted jar. =20 =20 =20 VISIT HERPETOLOGICAL CONSERVATION AND BIOLOGY www.herpconbio.org = <http://www.herpconbio.org>=20 A New Journal Published in Partnership with Partners in Amphibian and = Reptile Conservation and the World Congress of Herpetology. =20 Malcolm L. McCallum Assistant Professor Department of Biological Sciences Texas A&M University Texarkana 2600 Robison Rd. Texarkana, TX 75501 O: 1-903-223-3134 H: 1-903-791-3843 Homepage: https://www.eagle.tamut.edu/faculty/mmccallum/index.html =20
________________________________ From: Ecological Society of America: grants, jobs, news on behalf of = Stephen Johnson Sent: Mon 10/16/2006 11:19 AM To: [email protected] Subject: photosynthesis measurement Greetings to all listserv members, =20 In case I cannot find a spare LiCor 6200 leaf chamber I thought I'd = post to the list a couple of related ideas / questions. =20 What sort of low budget methods are available to at least qualify, if = not quantify, the presence of photosynthetic activity? =20 Are there any diagrams available to describe the construction of a = leaf chamber such as that of a LiCor 6200? =20 Thanks to all in advance =20 Sincerely Stephen Johnson Prairie Ecologist [EMAIL PROTECTED] [EMAIL PROTECTED] =20 --------------------------------- Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ = countries) for 2=A2/min or less.
