The enigma of hybrid constancy in Mendel's Pisum paper perceived by Albert Blomberg in 1872

Abstract

A. Blomberg, a Swedish scientist, quoted Mendel among the most important investigators in the line of plant hybridization early in 1872 which remained overlooked in literature for many years. Describing dominant and recessive plant characters, Blomberg also touched on the phenomenon of hybrid constancy. For Mendel this was, indeed, the crucial obstacle for the general validity of his theory. Later on it was also the key problem in his experiments with other plant species. Blomberg thus showed that Mendel never accepted the existence of stable plant hybrids, a view which many years later was experimentally confirmed.