 | Better Farming Series 02 - The Plant: the Stem; the Buds; the Leaves (FAO - INADES, 1976, 30 p.) |
 |  | (introduction...) |
| | Preface |
| | Plan of work |
|  | The stem |
| | Where is the stem? |
| | How a stem is made |
| | What the stem does |
| | The buds |
| | The leaves |
| | (introduction...) |
| | How a leaf is made |
| | (introduction...) |
| | The leaf-stalk |
| | The veins |
| | The shape of leaves |
| | What are leaves for? |
| | (introduction...) |
| | How the leaf changes raw sap into elaborated sap |
| | Organic matter in the plant |
| | The plant breathes. |
| | The plant transpires. |
| | Some practical applications |
| | The plant needs air and light |
| | The plant needs water |
| | The plant needs its leaves |
(introduction...)
Pick up some leaves of a mango tree or coffee tree. Let us look at them.
· Leaves are usually of a green
colour, more or less dark.
· They are joined
to the stem by a stalk called the leaf- stalk.
· The leaf-stalk is continued into the leaf by the
midrib.
· Other smaller veins branch out from
the midrib. These are the primary and secondary veins.
· The whole flat part of the leaf is called the leaf
blade or lamina.
A
leaf
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