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Rwandan farmers should go for disease and pest resistant sweet potatoes

With only 15 per cent of sweet potato farmers able to invest their own money in buying new varieties of sweet potato seeds, agricultural researchers are set to establish demonstration plots that will stimulate farmers’ demand.

The Rwanda Agricultural Board and International Potato Centre (CIP)  have been working together to develop cleaner sweet potato varieties but Julius Okello, the Agricultural Economist at the center, says very few farmers are willing to pay for the planting materials.

At least five new sweet potato varieties that were recently introduced are expected to increase yields from 11 tons per hectare to at least 15 tons in farmers’ fields while they can produce over 20 tons when they are still RAB’s research stations.

“We will set the demonstration plots that the farmers will actually see and experience the performance of new varieties. They will observe the difference between the varieties they normally plant and the newly developed ones,” he said.

The disease and pest resistant varieties include Cecilia, Esther, New Kawogo, Otada and Kyabafurika which have to be given local names by farmers. “We are going to carry out a study that is going to investigate whether farmers have demand for clean disease and pest free planting materials (vines) of sweet potatoes.”

The assessment will be carried out in seven districts of Rulindo, Gakenke, Musanze, Kayonza, Muhanga, Ngororero, and Rubavu to understand why few farmers are embracing the new varieties with potential yields.

Okello explained that sweet potato is a major crop in Rwanda for almost every household but the productivity is currently very low. “The reason for that is that farmers are using planting materials that are infected with diseases and pests. So the yields are very low and sometimes much lower, less than 50 per cent of the potential yields.”

Statistics of the National Institute of Statistics of Rwanda indicate that the per capita consumption is 145 kg for sweet potato per year. In caloric terms, sweet potatoes contribute to 21.6 per cent of the total national requirements. The average production of sweet potato in Rwanda was 1.186 million tons in 2018.


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