From parameshwaran from gmail.com Tue Aug 19 10:01:27 2008 From: parameshwaran from gmail.com (Mesh) Date: Tue Aug 19 10:25:45 2008 Subject: [Photosynthesis] query on quantum efficiency and yield Message-ID: <28cb1485-8ef3-421d-8ba0-a1296c8bcea8@z6g2000pre.googlegroups.com> Hi All, I've a query in understanding quantum yield and quantum efficiency quantum yield can be defined as the ability with which the plants trap photons whereas quantum efficiency can be ability with which plants transfer the trapped energy towards photochemistry. is the above defnition true? Also Can I use a PAM pulse modulated flurometer to measure both the parameter? My problem is I've few plant species and i want to see which one is doing its best in the same environmental condition. Can I use these two parameter to judge the best out of the list I've? Thanks & Regards, Parameshwaran V