Treatments Average Group
25 cm×15° 7.54 A        
25 cm×30° 5.92   B      
25 cm× 0° 5.46   B      
30 cm×15° 5.31   B      
25 cm×45° 4.08     C    
30 cm× 0° 3.92     C    
30 cm×30° 2.46       D  
30 cm×45° 1.31         E
Table 2: The Duncan test of subjective preference.