Cucumis sativa:

Usually monoecious but can have dioecious or hermaphroditic types

All flower buds are initially hermaphroditic:arrested stamen or pistil development leads to unisexual flowers

Three gene system, with epistasis

• M-ff are monocots

• M-F- are female

• mmF-are hermaphroditic

• mmff are andromonoecious (male and hermaphroditic flowers)

Role of hormones: GA “masculinizes” ethylene “feminizes”