Spanish Broom (Spartium junceum L.) as New Fiber for Biocomposites: The Effect of Crop Age and Microbial Retting on Fiber Quality

Table 3

Effect of crop age and microbial strain on fiber diameter: mean, minimum, and maximum values.

	Mean diameter^†† (μm)	Min; (μm)	Max; (μm)
2-year-old NCIMB10690	63.1±18.2^a	30	140
2-year-old NCIMB9539	53.0±9.3^b	25	70
7-year-old NCIMB10690	48.8±8.6^c	30	80
7-year-old NCIMB9539	48.6±8.7^c	20	70

Mean values followed by the same letters are not significantly different for 𝑃≤0.05 following a two-way ANOVA test with crop age and microbial strain as variability factors. ^††Mean value for 𝑛= 133–148.