CAVAC How to select cassava stems for plantation (Cassava Mosaic Disease Instructional Video)

Introduction

This tutorial provides a comprehensive guide on how to select healthy cassava stems for plantation, crucial for avoiding Cassava Mosaic Disease. The guidance aims to help farmers ensure high-yielding cassava crops by selecting the right planting materials.

Step 1: Identify Healthy Cassava Stems

• Look for stems that are straight and firm. Avoid any that are crooked or have soft spots.
• Check for the presence of leaves. Healthy stems typically have vibrant green leaves.
• Inspect the stems for any signs of disease such as yellowing or wilting leaves. These are indicators of potential infection.

Step 2: Examine the Stem Nodes

• Focus on the nodes (the bumps on the stem where leaves grow).
  • Healthy nodes should appear plump and firm.
  • Avoid stems with shrunken or discolored nodes, as these may harbor diseases.

Step 3: Select Stems from Disease-Free Plants

• Only use stems from plants known to be disease-free.
• If possible, consult with local agricultural experts or extension services to ensure the source is reputable.

Step 4: Evaluate the Age of the Stems

• Choose stems that are 6 to 12 months old for the best results.
• Avoid using stems that are too old or too young, as they may not perform well in the field.

Step 5: Cut Stems Properly

• Use clean, sharp tools to cut the stems to prevent infection.
• Each cutting should be approximately 20-30 cm long and have at least two nodes.

Step 6: Store Stems Correctly

• Place the cut stems in a cool, dry place away from direct sunlight to avoid drying out.
• Do not stack them too tightly to prevent mold growth.

Conclusion

Selecting healthy cassava stems is vital for preventing Cassava Mosaic Disease and ensuring a successful crop. By following these steps—identifying healthy stems, examining nodes, selecting from disease-free plants, evaluating age, cutting properly, and storing correctly—you can enhance your chances of a high-yield cassava plantation. For further assistance, consider reaching out to local agricultural experts or extension services.