Hi all I need some help with some data from a germination experiment, specifically hypocotyl and radicle elongation data. I wanted to determine if the concentration of different leaf leachates (3 different concentrations) and the removal the mesocarp of the seeds (with mesocarp/without mesocarp) had some effect on the germination and hypocotyl and radicle elongation. The experiment consisted in 8 seeds per leachate treatment (control, 1:50, 1:1) with mesocarp and without mesocarp. Each of these replicated 3 times. The problem is that in some cases I didn't get a response (elongation) as some seeds didn't germinate because they were attacked by a moth larvae. I decided to take out the zeros as they didn't represent a response to the treatment. So now I have an unbalanced complete block with a non normal dataset. I did some research and, as I can't use a Friedman test because of the missing data, I found a test call The Skillings?Mack test but I couldn't find a package in R to do this. Can any one tell me if this is the right test? and also does any one know how to do it in R? Regards Narkis
Narkis Morales San Martin - PhD Candidate School of Environment The University of Auckland | Te Whare Wananga o Tamaki Makaurau Private Bag 92019 Auckland 1001 New Zealand