During the 1950s and 1960s, Grof was also involved in forage species collecting missions in Africa, Southeast Asia, and South and Central America.
[1] Bert Grof spent large time of his researcher life in South America, dedicated to pasture and forage improvement.
He excelled in evaluating the ecological adaptation of large collections of grass and legume forages to low fertility soils in the Colombian Llanos (i.e. Eastern Plains) (1978–1985) and the Cerrados of Brazil (1985–1992), working for the International Center of Tropical Agriculture (CIAT), one of the research centers under the Consultative Group on International Agricultural Research (CGIAR).
[3] As a forage agronomist formed in the "Australian school", Grof initiated tropical legume plant breeding (selecting in hybrid Centrosema progenies) at CIAT as early as 1972 when he arrived in Colombia.
The following forage/pasture cultivars were commercialized and/or released based on Bert Grof's germplasm collection and research results.