AI-assisted research; agricultural specialist review pending. This overview is not a cultivation prescription or a complete catalogue of rice varieties. The Galle study is summarised from its published abstract, not an independent review of its full dataset. Food traditions, milling, seed conservation and individual varieties need separate, deeper articles.
Maha and Yala: reading the farming calendar
Rice is a staple food in Sri Lanka. The Department of Census and Statistics describes two paddy seasons: Maha, spanning September to March of the following year, and Yala, from April through August. These are broad statistical periods associated with the monsoons, not instructions to sow on one national date. The department also notes that water shortages can prevent all available paddy land from being cultivated. A seasonal label therefore needs to be read alongside the location and actual sowing and harvesting period.
Varieties have different growing durations
The Rice Research and Development Institute’s recommended-variety directory groups entries by maturity duration, from two-and-a-half months through five to six months. It includes named records such as Bg 300, Ld 368 and Bw 372. This makes duration a useful starting point for understanding why rice is not a single interchangeable crop. The directory labels its coverage as recommendations from 1958 to 2021; it should not be treated as proof of a complete 2026 catalogue. A listing alone does not establish suitability for every field, season or market. Consult the individual record and local agricultural advice before choosing seed.
What happens at Bathalagoda?
RRDI is based at Bathalagoda, Ibbagamuwa, in Kurunegala district, with associated regional research stations. Its institutional history records the Central Rice Breeding Centre name in 1952 and the Rice Research and Development Institute name in 1993. Research extends beyond breeding: the institute describes work on soil fertility, pests, diseases, weeds, production methods and grain quality. Both traditional material and lines introduced from the International Rice Research Institute contribute to its breeding programme. This links the conservation of crop diversity with attempts to improve farming performance; it does not mean every traditional variety or introduced line has the same characteristics.
Traditional rice: what a Galle study actually found
A 2023 study by Wickramasinghe, Abeywickrama and Millawithanachchi examined traditional rice in Galle District alongside improved varieties. Its published abstract describes preliminary evaluations in 2017 and subsequent trials through the 2018/19 Maha season, involving farmers, researchers, consumers and traders. Suwandal from the Labuduwa research station scored highest for cooked-rice quality in one evaluation. Improved varieties Ld 368 and Bw 372 performed strongly in later farmer-field trials. The final preference assessment highlighted Gonabaru and Kuruluthuda among traditional choices. These are different measures: cooking preference is not the same as yield. Results from these locations and seasons are not a national league table, and this agronomic study does not establish medical benefits from eating a named rice.
Farming knowledge is tested in the field
In November 2023, FAO announced a Farmer Field Schools programme with Sri Lanka’s Department of Agriculture and Mahaweli Authority, funded by the European Union. It aimed to train 6,000 smallholder paddy farmers in Ampara, Badulla, Hambantota and Polonnaruwa. The proposed learning combined soil testing, nutrient management, seed quality, land preparation, water use and pest management. Its emphasis on exercises adapted to local conditions helps explain why a single recipe for all rice fields is inadequate. The announcement documents a programme launch and intended reach, not confirmation that every participant completed training or achieved a particular yield increase.
Area, yield and production are not interchangeable
The national statistics portal separates land prepared for paddy, land sown and land harvested. District yields are estimated using crop-cutting samples; seasonal production is calculated from harvested area and average yield. A larger cultivated area does not by itself prove higher output per hectare. The portal also flags revisions to historical yield estimates. When comparing seasons, retain the table’s units, dates and revision status rather than treating an older screenshot as a permanently fixed number. The linked portal provides both metric and imperial tables.
Watch: the wider food-security setting
FAO’s May 2023 video introduces its response to Sri Lanka’s economic challenges, including agricultural production and farming and fishing livelihoods. It offers context for the pressures surrounding food production rather than a technical rice-growing lesson. The video is linked from FAO’s own Sri Lanka video directory, and YouTube confirms its institutional publisher and embed metadata. Its full narration has not been independently fact-checked here. Read project statements as accounts of a particular intervention and period, not as a current assessment of every farming household.
Empowering Communities: FAO’s Impact on Sri Lanka’s Economic Challenges
FAO’s 2023 food-security context film; not a rice cultivation tutorial. Institutional link and YouTube publisher metadata verified.
Watch on YouTube ↗Follow the evidence
Department of Census and Statistics, Sri Lanka
Rice Research and Development Institute / Department of Agriculture
Department of Agriculture, Sri Lanka
Tropical Agricultural Research and Extension, University of Ruhuna
FAO / United Nations in Sri Lanka
Food and Agriculture Organization of the United Nations
FAO / YouTube
Sources consulted during this AI-assisted update: 6 September 2026. Source labels describe provenance, not independent fact-check approval. This article remains open to correction.