
- Address : Bathalagoda, Ibbagamuwa, Sri Lanka
- E- Mail : rrdi@doa.gov.lk
- Telephone : +94 372 258561
- Fax : +94 372 259881
RRDI Rice Varieties
At 313
Potential yield | : 9.5 t/ha (Murunkan) |
Average yield | : Dry & Intermediate zone – 5.76 t/ha Wet zone – 4.27 t/ha |
Maturity | : 90-95 days |
Plant height | : 90 cm |
Basal leaf sheath colour | : Green |
Regions recommended for farming | : Island wide cultivation |


Grain Quality Characteristics
Weight per bushel of paddy | 20 kg |
1000 grain weight | 24.513g |
Brown rice recovery ( based on weight) | 79.20% |
Milling recovery ( based on weight) | 71.90% |
Head grain recovery ( based on weight) | 64.30% |
Grain shape | Long moderate |
Pericarp colour | Red |
Amylose content | High-Intermediate |
Gelatinization temperature | Intermediate |
Presence of buff colour | No |
Resistance to Pests and Diseases
Pest/Disease | Level Of Resistance |
Blast | Moderately Resistant |
Bacterial Leaf Blight | Moderately Susceptible |
Gall Midge | Moderately Resistant |
Brown Planthopper | Moderately Resistant |
Grain Quality Characteristics
Weight per bushel of paddy | 20 kg |
1000 grain weight | 24.513g |
Brown rice recovery ( based on weight) | 79.20% |
Milling recovery ( based on weight) | 71.90% |
Head grain recovery ( based on weight) | 64.30% |
Grain shape | Long moderate |
Pericarp colour | Red |
Amylose content | High-Intermediate |
Gelatinization temperature | Intermediate |
Presence of buff colour | No |
Resistance to Pests and Diseases
Pest/Disease | Level Of Resistance |
Blast | Moderately Resistant |
Bacterial Leaf Blight | Moderately Susceptible |
Gall Midge | Moderately Resistant |
Brown Planthopper | Moderately Resistant |