Yam variety

Jute sack

Polypropylene sheet

Straw

Control

Pona

0.037 ± 0.012^a

0.042 ± 0.028^a

0.021 ± 0.010^a

0.033 ± 0.019^a

Lariboko

0.084 ± 0.055^a

0.033 ± 0.017^a

0.047 ± 0.016^ab

0.139 ± 0.042^b

Dente

0.025 ± 0.008^a

0.029 ± 0.007^a

0.082 ± 0.030^b

0.017 ± 0.007^a

Mutwumudoo

0.032 ± 0.011^a

0.184 ± 0.059^b

0.037 ± 0.013^a

0.030 ± 0.009^a

Serwah

0.020 ± 0.011^a

0.015 ± 0.006^a

0.016 ± 0.007^a

0.027 ± 0.008^a

Matches

0.023 ± 0.007^a

0.049 ± 0.017^a

0.010 ± 0.005^a

0.013 ± 0.006^a

Akaba

0.030 ± 0.009^a

0.017 ± 0.006^a

0.018 ± 0.006^a

0.026 ± 0.008^a