Question

Cotyledon of maize grain is called

• A. scutellum
• B. coleoptile
• C. coleorhiza
• D. plumule

Answer 1

The correct option is A scutellum

Structure of maize grain

The maize grain has the following parts:

• Seed coat: Generally a thin layer fused with the fruit wall.
• Scutellum: One large cotyledon located toward the embryonal axis.
• Aleurone layer: Proteinaceous layer separating the embryo from the endosperm.
• Short embryonal axis
• Plumule: Upper part of the embryonal axis.
• Radicle: Lower portion of the embryonal axis.
• Coleoptile: Sheath covering the plumule.
• Coleorhiza: Sheath covering the radicle