Promotive Effect of Cytokinin-Active Ureas in Rice Seedling Growth

摘要

Three cytokinin-active ureas,N-phenyl-N′-(2-hydroxy-4-pyridyl)urea,N-2-methylphenyl-N′-(2-hydroxy-4-pyridyl)urea andN-pbenyl-N′-(6-hydroxy-4-pyridazinyl)urea, were found to have growth-stimulating activity in the rice seedling test. Their structure-activity relationships are disc