Studies on the Mechanism of Physiological Wilt of Wheat Plant in Late Filling Period Polyamine-mediated triterpenoid synthesis in suspension cells of Betula platyphylla induced by fungal elicitor Effect of putrescine on sucrose metabolism and triterpenoid accumulation in Betula platyphylla suspension cells EFFECTS OF ACID STRESS ON ENDOGENOUS POLYAMINE AND ACTIVE OXYGEN METABOLISM OF WOODY PLANTS The Improvement of Salt Tolerance of Black Locust Seedlings After Seed Soaked in Multi-Effect Triazole The Relationship Between Polyamines and Senescence of Detached Wheat Leaves EFFECT OF PUTRESCINE ON THE GERMINATION OF RICE SEEDS UNDER SUBOPTIMAL TEMPERATURE Studies of Polyamine Metabolism and β-N-oxalyl-L-α,β-diaminopropionic Acid Accumulation in Grass Pea (Lathyrus sativus) Under Water Stress Effects of Polyamines and Kinetin on In Vitro Frond Senescence in Lemna aequinoctialis 6746 Plantlet regeneration for hairy roots of Atropa belladonna by co-transformed PMT and H6H Changes in Contents of Polyamines in the Flag Leaf and Their Relationship with Drought-resistance of Rice Cultivars under Water Deficiency Stress