 | Better Farming Series 16 - Roots and Tubers (FAO - INADES, 1977, 58 p.) |
 |  | (introduction...) |
| | Preface |
| | Roots and tubers |
|  | Cassava |
| | Description of the plant |
| | Different kinds of cassava |
| | Where is cassava grown? |
| | How to grow cassava |
| | The place of cassava in a crop rotation |
| | Preparing the soil for cassava |
| | How to propagate cassava |
| | How to plant cassava |
| | Looking after the plantation |
| | How to harvest and store cassava |
| | The use of cassava in food |
| | (introduction...) |
| | Fresh cassava and cassava paste |
| | Dried casava and cassava flour |
| | Cooked cassava flours |
| | Starch and tapioca |
| | Cassava leaves |
| | Yams |
| | Description of the plant |
| | There are many varieties of yam |
| | Where are yams grown? |
| | How to grow yams |
| | The place of yams in a crop rotation |
| | How to prepare the soil for yams |
| | How to propagate yams |
| | How to plant yams |
| | Looking after the plantation |
| | Harvesting and storing yams |
| | The use of yams in food |
| | (introduction...) |
| | Fresh and mashed yams |
| | Dried yams and yam flour |
| | Sweet potatoes |
| | Description of the plant |
| | (introduction...) |
| | Varieties of sweet potato |
| | Where are sweet potatoes grown? |
| | How to grow sweet potatoes |
| | (introduction...) |
| | Propagation of sweet potatoes |
| | Looking after the plantation |
| | Yields of sweet potatoes and storing |
| | Sweet potatoes in human food |
| | Tania and taro |
| | (introduction...) |
| | Description of the plant |
| | Tania or Xanthosoma |
| | Taro or cocoyam (Colocasia) |
| | Where are tania and taro grown? |
| | How to grow tania and taro |
| | (introduction...) |
| | Propagating |
| | Planting |
| | Looking after the plantation |
| | Harvesting |
| | Storing the tubers |
| | Tania and taro in human food |
| | Suggested question paper |
Description of the plant
Cassava is a shrub that is grown chiefly for its roots.
It has its origin in South America and is now widely grown in tropical Africa.
At its base the plant consists of one or more stems 2 to 3 centimetres in diameter; usually each stem divides into three branches, and each branch in turn divides into three, and so on.
When a stem is cut, the sap that flows is white and looks much like milk. Inside the stem is pith. The stem of cassava is not very hard; it is easily broken by a strong wind.
Cassava leaves have a long stalk and a much divided leaf- blade.
The leaf veins are green or red.
A yam leaf
The flowers are pink, red, yellow or green. There are both male and female flowers in the same cluster.
The fruit is divided into three parts. Each part contains a seed. When the cassava fruit is ripe, it opens.
The farmer grows cassava chiefly for its roots. Some of them become large and fat by storing up food reserves. Other thinner roots continue to feed the plant.
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