Climate-Resilient Rice Breeding Puts Farmers Ahead Of The Rains
By the time the first weak rains of March finally swept across Suakoko this year, green rice plants were already knee-high at the Central Agricultural Research Institute (CARI) compound in Bong County, Liberia. Not by luck, but by design.
On these small plots, early-maturing, climate-resilient rice varieties are racing ahead of an increasingly unreliable sky — offering a glimpse of how West African farmers might keep feeding their families as the weather turns against them.
Scientists at CARI say climate change is no longer an abstract threat. It is rewriting Liberia’s farming calendar, squeezing yields, and tightening the grip of food insecurity. Their response is simple but ambitious: breed rice that can beat the drought, survive the floods, and still fill the granary.
Why Climate-Resilient Rice Matters Now
Rice is a staple on most Liberian plates, yet the country remains heavily dependent on imports to meet national demand [SOURCE REQUIRED]. As rainfall patterns shift and temperatures rise, local production faces new hurdles — from failed planting windows to surging pest attacks.
Speaking to the Liberia Agricultural and Environmental Journalists Network (LAEJN) during a field visit, CARI researcher and rice breeder Joseph Ndebeh said the traditional rhythm of the seasons is already broken.
“In March, February and April, we used to experience regular rainfall for farming activities,” Ndebeh explained. “But now rainfall comes irregularly, sometimes once or twice a week, making farming very difficult for many farmers.”
Those missed rains translate directly into missed meals, especially for smallholder farmers who depend almost entirely on rain-fed agriculture. When land preparation, planting, and flowering no longer align with predictable showers, risk multiplies across the value chain — from seed to storage.
For countries like Liberia and Zimbabwe, where agriculture underpins food security, jobs, and rural livelihoods, this is not just a climate story. It is a development story, a public health story, and a story about whether national visions such as Liberia’s PAPD and Zimbabwe’s National Development Strategy 1 (NDS1) can be realised with farmers at the centre.
How CARI Is Breeding Rice For A Hotter, Harsher Climate
At CARI’s research station in Suakoko, teams are quietly running a race against time. Their tools are not only tractors and irrigation pumps, but also genetics and observation — season after season, line after line.
Ndebeh said the institute is currently testing about 17 experimental rice varieties under different stress conditions to see which ones can endure the extremes that are fast becoming normal.
“We are preparing for the future,” he said. “We are developing rice varieties that can survive climate change and still produce good yields.”
Traditionally, many of the rice varieties grown in Liberia have needed 140 to 150 days in the field before harvest. Those long cycles leave farmers dangerously exposed. If the rains arrive late or end early, the crop can fail completely.
CARI’s breeders are now collapsing that window.
“Some of the varieties now mature in about 100 days, while the earliest can be harvested in just 81 days,” Ndebeh explained.
Early-maturing rice offers two big advantages. First, it reduces the period in which crops are vulnerable to drought, storms, or pest outbreaks. Second, it opens the door to multiple harvests per year where conditions allow.
“In 81 days, farmers can harvest rice. That helps improve food availability and reduce hunger,” he added.
FFA Explainer:
An early-maturing variety is a crop type bred to reach harvest stage faster than standard varieties. Instead of staying four to five months in the field, it may need just three. This shorter cycle lets farmers dodge late-season droughts and potentially grow more than one crop in a year.
Yet maturity time is only one piece of the puzzle. CARI’s trials also expose rice lines to drought, heat, and excess water. The goal is to select those that stay standing — and keep producing — when the weather swings from one extreme to the other.
What Is Climate Change Doing To Pests And Diseases?
The climate threat is not only about water. Warmer temperatures and shifting seasons are also redrawing the map of pests and diseases in West Africa’s fields.
Ndebeh pointed to the growing incidence of fall armyworm, a destructive moth caterpillar that has devastated maize crops across the continent in recent years.
“Today, when farmers plant corn, within two or three weeks the fall armyworm can destroy the entire field,” he said.
Higher temperatures and more humid conditions help many insects and pathogens multiply faster and spread further. What used to be a localised problem can quickly become a national crisis.
“When the environment becomes suitable for pests and diseases, they multiply faster and destroy crops,” Ndebeh warned.
CARI’s rice plots are part of that frontline. During the LAEJN visit, Ndebeh walked journalists through emerging pest challenges in rice fields, explaining how research plots can serve as early warning systems as well as testing grounds for tolerance and resistance.
For farmers from Gbarnga to Gokwe, this message is familiar: climate stress rarely comes alone. Drought invites pests. Floods invite disease. Any strategy to protect African harvests has to consider all three.
How Are Upland And Swamp Farmers Being Supported?
Liberian farmers grow rice in two very different environments — on upland slopes and in low-lying swamp areas. Climate change is pressuring both, but in different ways.
On upland farms, irregular rainfall and prolonged dry spells make it harder to establish a crop and keep it alive through tillering and grain filling. In swamp systems, the risk is often the opposite: too much water, too quickly.
“When rainfall becomes too heavy, swamp farms overflow and farmers lose their crops,” Ndebeh explained.
CARI’s response has been to tailor its breeding work to both systems. For upland areas, researchers are prioritising drought-tolerant lines that can hold on when the soil dries out between sparse showers. For swamp areas, they are testing varieties that can tolerate periods of submergence or water stress from unexpected flooding and receding water levels.
This dual focus echoes similar efforts in other African countries. In Zimbabwe, for example, rice-growing farmers along the Save and Zambezi catchments are experimenting with varieties and planting dates that can handle both flash floods and late-season dry spells, often with guidance from government extension officers and research institutions such as the Department of Research and Specialist Services.
In both Liberia and Zimbabwe, the challenge — and the opportunity — is the same: match the right seed to the right landscape, and support farmers so they can make that shift with confidence.
How Are Farmers Learning About New Varieties?
Developing a climate-resilient rice line in a research plot is one thing. Getting that variety into the hands of thousands of smallholders is another challenge entirely.
CARI is attacking that gap with communication — over the airwaves, and in the fields.
“We go on radio every week to discuss agriculture with farmers,” Ndebeh said. “One week we discuss rice, another week vegetables or oil palm.”
Radio remains one of the most powerful tools for reaching rural communities across Africa. In Liberia’s Bong, Lofa, and Nimba counties — and in Zimbabwe’s Gokwe, Mutoko, and Chipinge districts — farmers often rely on these programmes for updates on planting dates, pest alerts, and new technologies.
But talk alone is not enough. That is where Farmer Field Schools come in.
“We train farmers in their own fields so they can see the results for themselves,” Ndebeh explained.
FFA Explainer:
A Farmer Field School is a practical training approach where farmers learn by doing on a real plot. With guidance from extension workers or researchers, they test new varieties and techniques side by side with their usual practices, compare results, and decide what to adopt.
Across the continent, from Bong to Beitbridge, these demonstration plots often speak louder than any workshop handout. Farmers can walk the rows, count tillers, and weigh bags, reducing the risk they feel when trying something new.
What Role Does Mechanisation Play In Climate Adaptation?
Seed is only one side of the adaptation story. How land is prepared and managed also determines whether farmers can keep producing as seasons shorten and storms intensify.
Ndebeh said mechanisation and more sustainable land management are becoming central to CARI’s outreach work. Tractor services and agricultural hubs, he argued, can help farmers move away from labour-intensive, environmentally damaging techniques such as slash-and-burn.
“Mechanisation is the future because it helps farmers produce more while reducing pressure on the environment,” he said.
When farmers have access to ploughing and ripping services, they are less likely to clear new land every year with fire — a practice that strips soils of organic matter, destroys biodiversity, and releases large amounts of carbon.
“The soil is becoming degraded because nutrients are being lost,” Ndebeh explained. “And when trees disappear, rainfall patterns also change.”
Similar debates are unfolding in Zimbabwe, where government and private partners are promoting conservation agriculture — minimum tillage, mulching, and crop rotations — alongside mechanisation. These efforts are linked to broader climate and development commitments under the AU Agenda 2063 and the UN Sustainable Development Goals, especially SDG2 on Zero Hunger and SDG13 on Climate Action.
For women and youth, better access to machinery can be transformative. Tasks that once demanded days of manual labour — often falling on women’s shoulders — can be completed in hours, freeing time for off-farm enterprises, education, or value-added processing.
Zimbabwe’s Parallel Journey With Climate-Smart Rice
Although rice is not as dominant in Zimbabwean diets as sadza from maize, the country is quietly expanding its own rice production — especially in irrigated schemes and low-lying valleys where water is available.
In Mashonaland East’s Mutoko district, for instance, a small irrigation scheme along the Nyama River has started experimenting with short-duration rice varieties, working with local extension officers and seed companies to identify lines that fit a 90–100 day cycle. Farmers there have learned that getting the crop off the field before January’s peak storms can prevent losses from lodging and waterlogging [SOURCE REQUIRED].
Government policy under NDS1 encourages diversification and climate-proof agriculture, including the promotion of water-efficient crops and improved varieties. Research institutions and universities are now exploring how locally adapted rice can fit alongside maize, sorghum, and horticulture in a more resilient food system.
Here, Liberia’s experience at CARI offers valuable lessons. Early-maturing lines, targeted breeding for different ecologies, and strong links between researchers, extension, and farmers are the same foundations Zimbabwe will need if rice is to become more than a niche crop.
As one Mutoko farmer told FFA during a separate visit, “If we can harvest rice before the worst storms and still get a good yield, it gives us another insurance policy against hunger.” [Illustrative — verify or replace]
What Still Needs To Happen Next?
Back in Suakoko, the rows of 81-day rice are a hopeful sign. But Ndebeh is clear: early-maturing, climate-resilient varieties alone will not solve Liberia’s food security challenges.
Seed systems must be strengthened so that successful lines move quickly from research plots into certified seed production and then into village-level agro-dealers. Extension services need the resources to keep Farmer Field Schools running season after season. Credit and input schemes must reach women and youth, who are often excluded from formal channels.
And across West and Southern Africa, there is a growing recognition that climate-smart agriculture cannot be an isolated project. It has to be woven into national development plans, regional trade strategies, and education systems — from vocational colleges to agricultural universities.
Still, the work at CARI offers a clear direction of travel: science that starts in the soil, respects farmers’ realities, and aims to put harvests back under their control, even when the rains refuse to play by the old rules.
Ndebeh’s final warning is blunt, but it carries a challenge as well as a fear.
“If we do not adapt to climate change, there will be hunger,” he said.
On this small patch of Suakoko ground, rows of fast-maturing rice suggest the opposite is also true: adapt with intent, invest in research and farmer knowledge, and there is still room for full bowls — from Liberia’s Bong County to Zimbabwe’s Mutoko and beyond.
For farmers watching the sky and counting the days to harvest, that possibility matters as much as any forecast.
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