How did Erich Tschermak von Seysenegg’s pea experiments relate to Gregor Mendel’s research?

Erich Tschermak von Seysenegg did not conduct his pea experiments to test Gregor Mendel’s theories initially; rather, he independently arrived at similar conclusions while conducting his own plant breeding research.

In 1898, Tschermak began breeding experiments on garden peas in Ghent and later near Vienna. While documenting his results, he discovered a reference to Gregor Mendel’s earlier work. Upon obtaining and reviewing Mendel’s papers, Tschermak realized that Mendel’s research had already duplicated and, in certain respects, superseded his own findings.1

Tschermak is recognized as one of the three scientists—alongside Hugo de Vries and Carl Erich Correns—who independently rediscovered Mendel’s foundational papers in 1900. Following this discovery, Tschermak became a prominent plant geneticist, successfully applying Mendel’s laws of heredity to develop improved agricultural crops, including new varieties of barley, wheat-rye hybrids, and disease-resistant oats.1