Table 1. χ² and P values from the chi-square test of acorn emergences (multiple comparisons).

Value	Nil- Slight a	Nil- Intermediate	Nil- Extreme	Slight- Intermediate	Slight- Extreme	Intermediate- Extreme
χ2	7.051	21.92	5.624	4.394	0.083	5.611
p	0.008	<0.001	0.018	0.037	0.774	0.018

^a Nil-Slight listed in Table 1 refers to the chi-square test between the experimental treatments of Nil excision and Slight excision. The same manner for Nil-Intermediate, Nil-Extreme, Slight-Intermediate, Slight-Extreme and Intermediate-Extreme.