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Premium Disease resistant cassava varieties

Disease-Resistant Cassava Cuttings for Higher Yields

The "Disease Resistant Cassava Varieties" technology refers to a range of cassava varieties specially selected and developed to resist the viral diseases that hamper cassava production in sub-Saharan Africa, in particular cassava mosaic and cassava brown streak. These cassava varieties have been created to address the major challenges affecting this key crop in the region. The adoption of these disease-resistant varieties offers farmers a sustainable means of protecting their cassava crops, improving yields and enhancing food security in sub-Saharan Africa. What's more, these varieties often display resistance to other common cassava pathogens, promoting integrated crop health management. Breeding and development programs continue to identify new disease-resistant cassava varieties, contributing to the sustainability of cassava production in sub-Saharan Africa.

2

This technology is TAAT1 validated.

7•7

Scaling readiness: idea maturity 7/9; level of use 7/9

Cost: $$$ 30—35 USD

1 ha of planting materials of elite cassava varieties

15—20 %

Incidences of cassava mosaic disease with resistant varieties

Problem

  • Viral Diseases Impacting Cassava: These diseases damage cassava leaves, reduce photosynthesis, and ultimately lead to significant yield losses and potential crop failure.
  • Ineffective Disease Control Methods: Common measures to protect cassava crops against viral pathogens do not provide a sustainable solution to the pervasive issue of viral diseases in cassava.
  • Yield Loss and Economic Impact: Farmers in African countries lose between 20% to 95% of cassava yields due to disease infections, valued at about US$1,200 – 2,300 million.

Solution

  • Development of Disease Resistant Cassava Varieties: These varieties are resistant to major diseases, which significantly reduces infection rates and yield losses, as well as prevents the rapid spread of diseases across growing areas.
  • Genetic Resistance Mechanisms: These genes are transferred from wild types into improved cassava varieties through conventional crossing techniques, offering a relatively cost-effective approach.
  • Comprehensive Disease Resistance: Many of the cassava varieties that are resistant to mosaic disease or brown streak disease also exhibit resistance to other major cassava pathogens, offering a significant advantage for integrated crop health management by farmers.

Key points to design your business plan

This technology is beneficial for Seed multiplier and users 

For Seed multiplier

Production of disease-resistant cassava varieties technology offers a cost-effective and sustainable solution, enhancing food security, promoting sustainable agriculture, and empowering women.

Certification is required for the multiplication and sale of cuttings from disease-resistant cassava varieties.

Potential customers for this technology include farmers, development projects, government agencies, and NGOs.

For Users

Using disease resistant cassava varieties technology offers a solution that minimizes yield losses, thereby enhancing food security and fostering sustainable agriculture practices.

Key partners required are cassava variety multipliers with high dry matter and starch content.

To evaluate the profitability of utilizing this technology, it's essential to estimate the profit generated from the product. It's worth noting that in local markets across Sub-Saharan Africa, the cost of planting materials typically ranges between USD 30 to 35 per hectare.

More

Positive or neutral impact

Adults 18 and over
Positive high
The poor
Positive high
Under 18
No impact
Women
Positive high

Positive or neutral impact

Climate adaptability
It adapts really well
Adaptability for farmers
It helps a lot
Biodiversity
It doesn't hurt them
Carbon footprint
It reduces emissions a little
Environment
It makes a little difference
Soil quality
It doesn't harm the soil's health and fertility
Water usage
It uses the same amount of water

Countries with a green colour
Tested & adopted
Countries with a bright green colour
Adopted
Countries with a yellow colour
Tested
Egypt Equatorial Guinea Ethiopia Algeria Angola Benin Botswana Burundi Burkina Faso Democratic Republic of the Congo Djibouti Côte d’Ivoire Eritrea Gabon Gambia Ghana Guinea Guinea-Bissau Cameroon Kenya Libya Liberia Madagascar Mali Malawi Morocco Mauritania Mozambique Namibia Niger Nigeria Republic of the Congo Rwanda Zambia Senegal Sierra Leone Zimbabwe Somalia South Sudan Sudan South Africa Eswatini Tanzania Togo Tunisia Chad Uganda Western Sahara Central African Republic Lesotho
Countries where the technology has been tested and adopted
Country Tested Adopted
Benin Tested Adopted
Burkina Faso Tested Adopted
Burundi Tested Adopted
Cameroon Tested Adopted
Democratic Republic of the Congo Tested Adopted
Ethiopia Tested Adopted
Kenya Tested Adopted
Liberia Tested Adopted
Madagascar Tested Adopted
Malawi Tested Adopted
Mozambique Tested Adopted
Nigeria Tested Adopted
Rwanda Tested Adopted
Uganda Tested Adopted
Zambia Tested Adopted

This technology can be used in the colored agro-ecological zones. Any zones shown in white are not suitable for this technology.

Agro-ecological zones where this technology can be used
AEZ Subtropic - warm Subtropic - cool Tropic - warm Tropic - cool
Arid
Semiarid
Subhumid
Humid

Source: HarvestChoice/IFPRI 2009

The United Nations Sustainable Development Goals that are applicable to this technology.

Sustainable Development Goal 2: zero hunger
Goal 2: zero hunger
Sustainable Development Goal 8: decent work and economic growth
Goal 8: decent work and economic growth
Sustainable Development Goal 13: climate action
Goal 13: climate action
Sustainable Development Goal 15: life on land
Goal 15: life on land

  1. Sourcing Disease Resistant Cuttings: Acquire disease-resistant cassava cuttings from reliable sources or select them from previously established disease-resistant cassava fields. Ensure that the cuttings are free from disease symptoms.
  2. Field Preparation: Prepare the cassava field by clearing the land of weeds and debris. Ensure proper spacing and row orientation to minimize the spread of diseases.
  3. Planting Cuttings: Depending on the climate and rainfall conditions, plant the cuttings horizontally in dry areas or vertically/angularly in humid areas.
    Cover the cuttings entirely with soil to promote healthy growth.
  4. Soil and Fertilizer Management: Adhere to recommended soil and fertilizer management practices tailored to your specific growing area and conditions. Ensure that the cassava plants receive adequate nutrients and water.
  5. Weed Management: Implement effective weed control measures to prevent weed encroachment, which can limit cassava growth and yield.
  6. Disease Control: Monitor the cassava field for any signs of disease. Promptly remove and destroy any infected plants to prevent disease spread.
    Consider planting disease-resistant varieties on the boundaries or rows facing the prevailing wind direction to limit infections of susceptible varieties within the field.
  7. Regular Maintenance: Regularly inspect the cassava field for any issues, including soil compaction or water limitations, and address them promptly to maintain optimal growing conditions.

Last updated on 22 May 2024