The purpose of this work was to study the adaptability and stability of pop
corn cultivars evaluated by Embrapa-Centro Nacional de Pesquisa de Milho e
Sorgo in the year 1991/92. Fifteen cultivars were evaluated for yield, in 1
9 environments, and for popping expansion, in 15 environments, at the centr
al-south of Brazil. The cultivars GO 100P, MF 1001, Pirapoca-Amarela, Pirap
oca-Branca and Colorado Pop 1 were more promising, showing higher grain yie
ld average (1,700 to 2,100 kg/ha) and reasonable popping expansion (17 to 2
1 mL/mL). In relation to yield, Pirapoca-Amarela and Colorado Pop 1 cultiva
rs were more adapted to favorable environments, and were stable. The MF 100
1, Pirapoca-Branca and GO 100P showed to be responsive to the environmental
stimulus, and were stable. In relation to popping expansion, all the culti
vars were stable, and MF 1001, Colorado Pop 1, Pirapoca-Amarela e Pirapoca-
Branca cultivars showed to be responsive to the environmental stimulus. GO
100P cultivar was adapted to favorable environments.