Determination of ecdysterone in Radix Achyranthis Bidentalae by near-infrared diffuse reflectance spectroscopy Effects of methy jasmonate on growth and major medicinal components accumulation of Achyranthes bidentata Phytoecdysterones from Cucubalus baccifer(Caryophyllaceae) Research on relationship between tissue quantitative distribution of 3H-achyranthes bidentata ecdysterone and channel-tropism of herbal drugs in mice Accumulation dynamic of ecdysterone in vegetative organs of Achranthes bridentata Accelerated solvent extraction of ecdysterone from Achyranthes bidentata Chemical constituents from flowers of Rhaponticum uniflorum Studies on the Chemical Constitutents of Podocarpus imbricatus BI.(Ⅱ)