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PowerPoint Presentation · microclimate by providing shade, preventing soil erosion and improving soil nutrient balance (Elias et al., 1998; Tensaye et al., 1998). In Ethiopia, where

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5 mm

1 mm

Endosperm

Operculum/

Micropyle

Embryo

Channel

First

true

leaf

Apical

meristem

Scutellum

(haustorium)

developed

from cotyledon

Chalazal

disk