Dear list members, trying to calculate the genetic parameter of a German wheat variety with GenCalc (within the DSSAT 35 environment)I face the following problem: GenCalc cannot find the measured data. In the WHCOEFF.TMP file the "D" (no data available for comparison) appears in front of every parameter. My questions: In which file the measured data have to be stored to enable GenCalc to access them ? What are appropriate abbreveations for denoting "grains per ear", "biomass at anthesis" and "stalk at harvest" for the file ? Maybe you could provide me with an example file ? Thanks for your assistance in advance ! Jans ___________________________________ Jans Bobert Dipl.Ing.agr. M.Sc. Technical University Munich Department of Plant Sciences Plant Nutrition Chair Boppstrasse 11 10967 Berlin Germany [log in to unmask] phone/fax +49 (0)30 6923768