SAH cassava Semi Autotrophic Hydroponics for Cassava Multiplication

A rapid quality seed delivery technology for cassava

Semi Autotrophic Hydroponics (SAH) for Cassava Multiplication is an innovative technology tailored for cassava propagation. Unlike traditional methods, SAH utilizes controlled environments with modified soil, plant roots, and limited water in trays. This fosters robust root growth while mitigating moisture-related diseases. The technique is cost-effective and adaptable, particularly for dispersed farming communities. SAH yields high-quality, disease-resistant cassava plantlets at a fraction of the production costs of tissue culture. This advancement not only expedites access to new cassava varieties but also bolsters overall productivity and resilience in cassava farming practices.

This technology is TAAT1 validated.

9•9

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

Positive or neutral impact

Adults 18 and over: Positive high
The poor: Positive medium
Under 18: Positive medium
Women: Positive medium

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 doesn't reduce emissions at all
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

Problem

Slow Propagation of Improved Varieties: Traditional methods are time-consuming and limit the distribution of new cassava varieties.
Contamination Risks: Conventional propagation methods are prone to pests and diseases, hindering the quality of cassava planting material. SAH provides a controlled environment to mitigate these risks.
Limited Multiplication Ratios: Methods like seed and tissue culture have low multiplication ratios, resulting in few new planting materials from one seed.
Pathogen Susceptibility: Planting materials obtained from stem cuttings may be more susceptible to pests and diseases when planted in open fields.
Inefficiency in Scaling Production: Traditional methods may not be conducive to efficiently producing large quantities of cassava planting materials for wide-scale distribution.

Solution

Fast Propagation of Improved Varieties: SAH enables rapid access to new and improved cassava varieties by providing a controlled environment that accelerates the multiplication process.
Contamination Prevention: SAH minimizes the risk of contamination with pests and diseases by creating a controlled environment that promotes healthy root growth and discourages disease-causing factors.
Increased Multiplication Ratios: SAH significantly improves multiplication ratios compared to methods like seed and tissue culture, resulting in a higher number of new planting materials from one source.
Enhanced Disease Resistance: Planting materials produced through SAH are more resilient and less susceptible to pests and diseases when planted in open fields, compared to those obtained from stem cuttings.
Efficient Scaling of Production: SAH provides a cost-effective and adaptable solution for dispersed farming communities, making it feasible to efficiently produce large quantities of cassava planting materials for widespread distribution. This addresses the inefficiency in traditional production methods.

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Cost: $$$ 10,000 USD

Setup up for a 40 sq. meter facility

ROI: $$$ 80 %

over one year

0.05 USD

operating cost per plant

0.05 - 1 USD

Production cost

116 %

ROI over 3 year

IP

Unknown

Countries with a green colour: Tested & adopted
Countries with a bright green colour: Adopted
Countries with a yellow colour: Tested

Countries where the technology has been tested and adopted
Country	Tested	Adopted
Democratic Republic of the Congo	–Not tested	Adopted
Nigeria	Tested	Adopted
Sierra Leone	–Not tested	Adopted
Tanzania	–Not tested	Adopted
Togo	–Not tested	Adopted
Zambia	–Not 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.

Goal 1: no poverty

Goal 2: zero hunger

Goal 3: good health and well-being

Tissue Culture Production: Begin by producing tissue-cultured (in vitro) cassava plantlets under semi-hydroponic and semi-controlled environmental conditions.

Mother Plant Preparation: Cut the tissue-cultured plantlets into mother plants. These mother plants will serve as the source for further propagation.

Tray Setup: Place the mother plants into trays with modified soil. Ensure that the trays are adequately spaced to allow for proper growth.

Growth Chamber Placement: Transfer the trays with the mother plants into a growth chamber. This chamber provides a controlled environment that is conducive for root development.

Recutting: After 2-3 weeks, recut the mother plants to obtain two plantlets from one. This step effectively multiplies the number of available plantlets.

Root Development: Return the recut plantlets to the growth chamber for an additional 6-8 weeks. During this period, the plantlets will develop well-formed roots.

Transportation: Trays can be transported in perforated cardboard boxes for up to 48 hours. This allows for convenient transportation to the planting site.

Planting: Plant the developed cassava plantlets directly in open fields or in screen houses for further breeding or production.

Last updated on 22 May 2024