Optimum culture media and liquid conditions in shaking flasks for laccase production by Ganoderma lucidum Variation of Microbial Biomass in Different Culture Media of Gerbera jamesoni at Different Growth and Developmental Periods Spore Germination of Dryopteris crassirhizoma(Dryopterydaceae) Assessment of vegetable safety and heavy metal contamination risk in decomposed rape straw and coal gangue soilless culture substrate