| H | 20 | −27.7 | −33.6 | −55.7 | −71.0 | −73.6 | −75.4 | −75.8 | |
| 40 | −34.7 | −44.1 | −63.6 | −72.4 | −74.5 | −75.3 | −75.8 | ||
| 60 | −35.3 | −32.5 | −58.5 | −70.5 | −74.5 | −75.5 | −75.8 | ||
| 80 | −34.3 | −35.0 | −56.2 | −71.1 | −74.4 | −75.5 | −75.8 | ||
| 100 | −27.1 | −33.7 | −53.8 | −73.6 | −74.2 | −75.4 | −75.9 | ||
| L | 20 | −29.8 | −29.7 | −52.8 | −66.3 | −73.3 | −75.5 | −75.8 | |
| 40 | −40.9 | −40.0 | −57.7 | −72.1 | −73.8 | −75.7 | −76.0 | ||
| 60 | −36.5 | −43.3 | −58.4 | −69.1 | −73.7 | −75.3 | −75.7 | ||
| 80 | −35.5 | −40.1 | −61.9 | −67.0 | −72.5 | −75.3 | −75.8 | ||
| 100 | −27.2 | −32.6 | −50.3 | −68.8 | −72.6 | −75.4 | −76.0 | ||
| M | 20 | −33.3 | −37.4 | −60.5 | −65.0 | −74.1 | −75.4 | −75.9 | |
| 40 | −33.2 | −37.6 | −62.8 | −69.3 | −74.3 | −75.4 | −75.8 | ||
| 60 | −34.7 | −37.3 | −56.6 | −67.7 | −74.8 | −75.5 | −75.7 | ||
| 80 | −35.1 | −44.2 | −60.6 | −69.0 | −72.9 | −75.5 | −75.8 | ||
| 100 | −26.5 | −34.5 | −59.3 | −66.6 | −73.7 | −75.5 | −75.8 | ||
| LSD (p = 0.05) | 8.5 | ||||||||