where F is the number of whole nuts; B is the number of broken nuts; and U is the number of unhusked nuts that were not completely separated from the husk (Fig. 3). Based on information obtained from betel nut producers, the value of a broken nut is about 15% of that of a whole nut, and the value of an unhusked nut is about 50% of a whole nut because of the additional labour cost of removing the husk. Accordingly, if 60 fruits were used in a test, the maximum performance score would be 100. Mechanical husking was performed and evaluated by means of Least Significance Difference (LSD) and Duncan Multiple Range Test (DMRT) techniques.