expt treatment_rep_min 3 ambient_30min_A 3 ambient_30min_B 3 ambient_30min_C 3 ambient_60min_A 3 ambient_60min_B 3 ambient_60min_C 3 ambient_90min_A 3 ambient_90min_B 3 ambient_90min_C 3 high_30min_A 3 high_30min_B 3 high_30min_C 3 high_60min_A 3 high_60min_B 3 high_60min_C 3 high_90min_A 3 high_90min_B 3 high_90min_C 3 moderate_30min_A 3 moderate_30min_B 3 moderate_30min_C 3 moderate_60min_A 3 moderate_60min_B 3 moderate_60min_C 3 moderate_90min_A 3 moderate_90min_B 3 moderate_90min_C