From 30,167 tons to 54,750 tons of improved seed produced inside Tanzania. From 44,581 tons to 79,214 tons of improved seed available to farmers. Behind the numbers sits a research and certification system being deliberately upgraded.

Improved seed is the quietest, most consequential of the agricultural inputs. A farmer who plants the right variety, certified, can produce significantly more on the same land than a farmer planting recycled grain. Tanzania has been working on its seed system for more than a decade. The FY 2025/2026 reporting cycle shows the work compounding into measurable output.

The headline figures

Local production of improved seed has grown from 30,167 tons in 2020/2021 to 54,750 tons in 2025/2026 — an 81.49% increase. Total seed availability, including imports, has grown from 44,581 tons to 79,214 tons over the same period — a 77.68% increase. The local share of supply has risen to roughly 69%, meaning that for every ten tons of improved seed reaching Tanzanian farmers, seven are now produced inside the country.

The trajectory has implications well beyond seed quantity. A country that produces most of its own improved seed has more control over which varieties reach which agro-ecological zones, what quality standards apply, and how seed prices behave when global supply is disrupted. The 2020/21 baseline left Tanzania heavily dependent on imported seed for several crops; the 2025/26 figures describe a system that has materially reduced that dependency.

The research engine

Behind the production numbers sits the Tanzania Agricultural Research Institute — TARI — which during FY 2025/2026 ran 56 strategic seed research programmes across the country’s priority crops. The portfolio is broad: cereals, legumes, oilseeds, roots and tubers, fibres. The work runs from foundational breeding through variety development, multi-location trials, and release recommendations to TOSCI, the seed certification authority.

Among the most consequential outputs of FY 2025/2026 was the release of 54 climate-resilient varieties across mungbean, beans, vegetables, rice, groundnuts, sorghum and cassava. Each of these varieties is bred to perform under specific stress conditions — drought tolerance, heat resistance, shorter growing cycles, disease resistance — that increasingly characterise Tanzanian farming environments. Their release moves climate adaptation from policy ambition into seed packets.

The certification backbone

Improved seed without certification is a contradiction. The Tanzania Official Seed Certification Institute — TOSCI — runs the inspection and certification regime that distinguishes genuine improved seed from informal-market alternatives. The Hotuba reports that TOSCI plans to inspect 1,669 seed farms covering 26,600 hectares, alongside 20 million plant seedlings, 2,800 outlets, and 167 storage facilities during FY 2026/27. The scale of that inspection workload is itself a measure of how the seed system has grown.

TOSCI’s laboratory infrastructure is being modernised in parallel. The National Seed Laboratory at TOSCI Headquarters in Morogoro is 92% refurbished. Three new regional laboratories are under construction — Western (Tabora), Southern (Mtwara) and Lake (Mwanza) — and refurbishment of the Northern Laboratory in Arusha is underway. When fully complete, the network will give TOSCI testing capacity in every major seed-production zone of the country, reducing turnaround times and decentralising quality control.

Climate-resilience as design choice

The release of 54 climate-resilient varieties in a single reporting year is a deliberate choice with strategic implications. Tanzania’s agro-ecological diversity — from the cool highlands of the south to the semi-arid central plateau, from the rice valleys of the lake zone to the cashew belt of the southeast — means that climate stress manifests differently in different zones. A national breeding portfolio that targets multiple stress profiles in parallel is the right design for that diversity.

TARI Hombolo, in particular, has been positioned as a Centre of Excellence for dryland agriculture. The screen house, modernised irrigation infrastructure, and active research portfolio at Hombolo make it the institutional reference point for breeding work targeting the central plateau and other water-stressed zones. The Hombolo upgrade is one of the lower-profile but higher-return investments of FY 2025/2026.

Where the seed system still strains

The candid picture is that the seed system is moving in the right direction but does not yet meet all the demand it could. Several priority crops — particularly horticultural varieties and certain legumes — still require imported seed at scale. The pace of variety multiplication after release is sometimes slower than commercial demand. And the last-mile distribution from certified producers to remote-ward agro-dealers can be uneven, particularly in dry seasons.

The pipeline of laboratories under construction, the 56 active research programmes, and the 54 newly released climate-resilient varieties suggest that the structural responses to these constraints are already in motion. The question is whether the pace of system maturation matches the pace of demand growth as Tanzanian agriculture expands.

“Uzalishaji wa mbegu bora ndani ya nchi umeongezeka kutoka tani 30,167.11 mwaka 2020/2021 hadi tani 54,750.47 mwaka 2025/2026 sawa na ongezeko la asilimia 81.49.”

— Hon. Daniel Godfrey Chongolo (MB), Waziri wa Kilimo, Hotuba ya Bajeti FY 2026/2027

Why the seed story matters most

Of all the inputs in the Tanzanian agricultural system, seed has the most leverage. A bag of fertilizer applied to recycled seed gives a smaller yield response than the same bag applied to certified improved seed bred for the agro-ecology and farming system in question. Irrigation water on the wrong variety produces less than irrigation on the right one. Extension advice on poor seed cannot offset the genetic ceiling of the variety in the ground.

When seed productivity rises, the whole input system becomes more productive. The 81.49% increase in local seed production is therefore not just a number about seed. It is a number that compounds through every other indicator in the agricultural system. Read in that light, it may be the single most important figure in the FY 2026/27 Hotuba.