H2O2 Effect on Adventitious Root Organogenesis of Cucumber and Mung Bean Hypocotyls Studies on Adventitious Root Formation in Hypocotyls of Cucumber and Phaseolus Cultures in Vitro ffects of Some Inhibitors on Potassium-and IAA-Induced Adventitious Root Formation of Excised Cucumber Cotyledon Preliminary Studies on Mechanism of Cotyledon Adventitious Root Formation of Cyclocarya paliurus