Effects of Nitrogen ,Phosphorus and Potassium on Root Vigor and Free Amino Acid Content of Astragalus membranaceus Seedlings Effects of Nitrogen ,Phosphorus and Potassium on Root Vigor and Free Amino Acid Content of Astragalus membranaceus Seedlings Effect of cadmium stress on root vigor and accumulation of elements  Ca, Mg, Mn, Zn, Fe in Salix variegate. Effects of Rhizosphere Microenvironment on the Root Vigor of Poplars and Transformation of Soil Available P Optimal Light Intensity for Dwarf Ophiopogon japonicus from Japan The Effect of Top-dressing and Irrigation Time on the Root System,Root Activities and Plant Characters in Winter Wheat Effect on the growth and photosynthetic traits of four kinds of greenbelt plants cultivated using reclaimed water Effects of exogenous calcium and soil moisture at acicula forming stage of peanut on some physiological characteristics of plants Effects of Peganum harmala Extract on the Growth and Antioxidase Activity of Wheat Seedlings Changes in photosynthetic properties, ultrastructure and root vigor of Dendrobium candidum tissue culture seedlings during transplantation Researches on correlation between root vigor of common planting tree species and soil moisture in Loess Plateau Effect of Irradiation on Physiological and Biochemical Property of Mat Rush Seedlings The Study of Root Induction and Root Vigor in Photinia fraseri in Vitro The Study of Root Induction and Root Vigor in Photinia fraseri in Vitro