In the areas of seasonal and perennial frozen soil, soil layers always contain different exent free stagnant water and frozen stagnant water, which may save the pressing need of water for spring plants. The paper, acc...
Calli were induced from the cuttings of test tube seedlings of Saposhnikovia divaricata (Turcz.)Schischk.cultured on MS medium containing 2,4 D 0.5 mg/L. After being transferred to a new medium without 2,4 D, the call...