Table 6.

ANOVA of substrate germination index.

Substrate	Germination index
T1	3.79bc
T2	4.38ab
T3	2.38d
T4	0.63e
T5	4.83a
T6	4.38ab
T7	3.46c
T9	4.88a
T10	4.88a
T11	4.29ab
T12	1.58d
T13	4.54ab
T14	4.54ab
Average	3.73
Fisher F	70.45
Significance level F Fisher	0.00***

WS, wheat straw; SPS, spent Pleurotus ostreatus (Jacq.) P. Kumm. substrate; WB, wheat bran; T, treatment; T1, WS 6.000 g; T2, WS 5.400 g + WB 600 g; T3, WS 4.800 g + WB 1.200 g; T4, WS 4.200 g + WB 1.800 g; T5, WS 3.000 g + SPS 3.000 g + CaCO₃ 60 g; T6, WS 2.700 g + SPS 2.700 g + WB 600 g + CaCO₃ 54 g; T7, WS 2.400 g + SPS 2.400 g + WB 1.200 g + CaCO₃ 48 g; T8, WS 2.100 g + SPS 2.100 g + WB 1.800 g + CaCO₃ 42 g; T9, SPS 6.000 g + CaCO₃ 120 g; T10, SPS 5.400 g + WB 600 g + CaCO₃ 108 g; T11, SPS 4.800 g + WB 1.200 g + CaCO₃ 96 g; T12, SPS 4.200 g + WB 1.800 g + CaCO₃ 84 g; T13, commercially controlled based substrates (Quintanar del Rey); T14, commercially controlled based substrates (Villamalea).

*** P-value <0.001. For each column, values followed by different letters are significantly different from each other (p = 0.05, Tukey-HSD).