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- Address : Bathalagoda, Ibbagamuwa, Sri Lanka
- E- Mail : rrdi@doa.gov.lk
- Telephone : +94 372 258561
- Fax : +94 372 259881
RRDI Rice Varieties
At 401
Variety name :At 401
Year of release :1992
Pedigree : Bg 94-1/Pokkali
Average yield : 5.0 t/ha
Maturity :115 days
Plant height : 85.0 cm
Basal leaf sheath colour : Green
Recommendation : Costal saline area
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Grain Quality Characteristics
Brown rice recovery | 80.00% |
Milling recovery | 72.40% |
Head rice recovery | 55.60% |
Amylose content | Intermediate |
Gelatinization temperature | Intermediate |
1000 grain weight | 25.0 g |
Grain shape | Long medium |
Pericarp colour | Red |
Bushel weight | 20.0 kg |
Buff colour presence | No |
Reaction to Pest and Disease
Blast | Bacterial Leaf Blight | Gall Midge | Brown Planthopper |
Moderately Susceptible | Moderately Susceptible | Resistant | Moderately Resistant / Moderately Susceptible |
Grain Quality Characteristics
Brown rice recovery | 80.00% |
Milling recovery | 72.40% |
Head rice recovery | 55.60% |
Amylose content | Intermediate |
Gelatinization temperature | Intermediate |
1000 grain weight | 25.0 g |
Grain shape | Long medium |
Pericarp colour | Red |
Bushel weight | 20.0 kg |
Buff colour presence | No |
Reaction to Pest and Disease
Blast | Moderately Susceptible |
Bacterial Leaf Blight | Moderately Susceptible |
Gall Midge | Resistant |
Brown Planthopper | Moderately Resistant / Moderately Susceptible |