Research Progress on the Mechanism of Petal Conical Epidermal Cells Formation and Attraction to Pollinating Insects Effects of composting with earthworm on the chemical and biological properties of agricultural organic wastes: A principal component analysis. Research Progress on the Mechanism of Petal Conical Epidermal Cells Formation and Attraction to Pollinating Insects BIOLOGICAL PROPERTY AND IN VIVO AND IN VITRO MULTIPLICATION OF THE PLANTLETS OF VINCAMINORL