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

Table 1

Effect of crop age on dry yield components (t ha⁻¹ year⁻¹) and bast/vermenes ratio in Spanish broom crops.

Crop age	Total above-ground dry yield (t ha^−1 year^−1)	Vermenes dry yield (t ha^−1 year^−1)	Bast dry yield (t ha^−1 year^−1)	Bast/vermenes ratio
1-2 years^†	20.0±2.7^a	10.5±2.5^a	4.2±1.1^a	0.40±0.05^a
1–7 years^†	14.9±5.5^a	7.8±3.0^a	3.5±1.2^a	0.47±0.08^a

Mean values followed by the same letters are not significantly different for 𝑃≤0.05 following a one-way ANOVA test with crop age as variability factor. ^†Establishment year excluded.