Effect of Processing on the Extraction of Alkalkaloids from Strychnos Comparative analysis of morphological characteristics and effective composition contents of Epimedium pubescens in different habitats Ion distribution in plant and salt tolerability of leaves of Malus zumi under stress of NaCI Effects of Salinity on Ion Contents, Betaine Level and Betaine-Aldehyde Dehydrogenase Activity in Seepweed (Suaeda salsa) Seedlings