Study on variability in field experiments of isubgul crop

The data on C.V. % for Isabgul crop yield along with other details of 159 field experiments conducted during 1989-90 to 2011-12 at Main Research Station, Medicinal and Aromatic crop, Anand Agricultural University, Anand were collected and analyzed. The frequency distribution tables were prepared for various experimental factors. The upper fiducial limits (the yardstick) of C.V.% at 95% confidence based on non central‘t’ distribution were worked out for accepting the results of isubgul crop experiments which emerged as 23%.