Page 16 - Chapter 14 Reproduction

Site of attachment s ta rch y -------- ; • ►
of style endosperm

Endosperm V jS k ' Plumule
It Radicle
\ itYregion 11
— Embryo Scutellum
region I

Maize grain L.S of Maize seed

Fig 14.11: Maize grain (External and Internal) structure

► Gram seed, maize grain, watch glass, microscope, dissecting box

▲ CA U TIO N S
m

1. Examine the external features of dry and soaked Use the
gram seeds and maize grains. razor
b la d e
2. Cut longitudinally through the soaked seeds and carefully
identify the internal structures.

Record your observations in the following table and draw diagrams.

Characteristics Gram Seed Maize grain

External Structure Shape
Internal Structure
Colour

Hardness / Softness

Endospermic or non-
endospermic
Monocotyledonous or
dicotyledonous

Location of emhryo
plumule, radical