Globerson, D., Division of Seed Research and Division of Ornamental Horticulture, Agricultural Research Organization, The Volcani Cent, Bet Dagan, Israel
Kadman-zahavi, A., Division of Seed Research and Division of Ornamental Horticulture, Agricultural Research Organization, The Volcani Cent, Bet Dagan, Israel
Ginzburg, C., Division of Seed Research and Division of Ornamental Horticulture, Agricultural Research Organization, The Volcani Cent, Bet Dagan, Israel

Three pure lines of lettuce differing in their seed germination behaviour were crossed, and the germination of their F2 and F3 progeny was studied. The pattern of segregation of the progeny with respect to seed germination indicates that factors controlling germination could be transmitted in a normal mendelian manner, and that the difference between these lines in their germination behaviour could not be caused by the seed and fruit coats. © 1974 Oxford University Press.