Mountain Oak Converted to a Pear Tree by [Ivan Vladimirovich] Michurin, September 5-8, 1932 Text Media Images Untitled ~ Metadata Cite this PageLotte Jacobi, “Mountain Oak Converted to a Pear Tree by [Ivan Vladimirovich]Michurin, September 5-8, 1932,” Jacobi | Curatescape Trial, accessed November 30, 2023, http://curatescape.unhartsprojectspace.org/items/show/36. SubjectsPlant grafting by Ivan Vladimirovich Michurin (1855-1935), Russian plant geneticist. Tagsbotany Michurin Michurinsk plant grafting Russia science USSR Published on Nov 25, 2020.