Studies on the Flowering Chracteristics an dHarvest Time of Pyrehrum cinerariifolium Tissue Culture of Pyrethrum cinerariifolium Isolation of Entophytic Fungal in Pyrethrum cinerariifolium Trev. and the Screening of Their Antifungal Activity Chemical constituents and biological activities of Pyrethrum cinerariifolium THE QUANTITATIVE ANALYSIS OF PYRETHROIDS Comparative Studies on Trichomes of Florist’s Chrysanthemum and Pyrethrum IN VITRO CULTURE OF AXILLARY BUDS OF PYRETHRUM CINERARIIFOLIUM AND THEIR CLONAL PROPAGATION Nucleotide Sequences of the Internal Transcribed Spacer Region of rDNA in Pyrethrum cineraefolium and Chrysanthemum segetum Comparative Studies on Trichomes of Florist’s Chrysanthemum and Pyrethrum