Variability study in medicinal and aromatic crop field experiments and yardstick 

Abstract

The data on CV per cent for Medicinal and aromatic crop yield along with other details of 535 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. Most of the experiments carried out in plant breeding (257) and Agronomy (216) disciplines. More than 80 % experiments carried out in RBD and about 23 % experiments of them have CV per cent higher than the fiducial limit (22.65 %). Treatments group 6-10, 11-15 and 16-20 showed lower CV per cent compared to overall average CV per cent. Plot size of the experiments 3 to 12 sq. mt. seems to be optimum plot size for medicinal and aromatic crops. Majority experiments were conducted with 3 and 4 replications in field experiments on Medicinal and Aromatic crops in which about 22 percent were having CV per cent> 22.65. The frequency distribution tables were prepared for various experimental factors. The upper fiducial limits (the yardstick) of CV per cent at 95% confidence based on non central't' distribution were worked out for accepting the results of Medicinal and aromatic crop experiments which emerged as 23%.