Yes, RiboCop for Plants reduces rRNA reads in 1 µg of low-quality Arabidopsis thaliana RNA (RIN ~) to ~4% when 1 µg inputs are used. With 1-100 ng of starting low-quality RNA material, RiboCop for Plants reduces rRNA reads to ~0,4-0,7%.
Please note that depletion rates may vary depending on the quality of the RNA and purity of the sample. Contaminants, such as salts, metal ions, and organic solvents, may have a negative impact on the efficiency of the protocol.