[3] In between completing his studies in Utrecht and submitting his thesis, Baas Becking worked in the laboratory of Thomas Hunt Morgan in the United States.
In 1923, Baas Becking accepted the position of professor at Stanford, where he taught economic botany and plant physiology.
[4] After World War II, Baas Becking was initially prevented from beginning his work in Bogor due to the Indonesian Revolution.
[10] The application of this hypothesis to microorganisms, specifically to the dependence of their geographic distribution over the earth on their metabolic properties, formed the basis of Baas Becking's research program at the Hortus Botanicus Leiden.
[4] Baas Becking presented a series of lectures on the subject to the Diligentia in The Hague, which he published as a book titled Geobiology in 1934.