Telephone
+94 812 388 331 /32/ 34
Email Address
info@doa.gov.lk /
dgoffice@doa.gov.lk
Office Address
Department of Agriculture,P.O.Box.01,
Peradeniya

RRDI_Rice_At311

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  • Fax : +94 372 259881
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RRDI Rice Varieties

At 311

Variety name : At 311 (Neeroga)
Year of release : 2015
Pedigree : At 306/At 03-105
Average yield  : 5.2 t/ha
Maturity  : 93 days
Plant height : 67.0 cm
Basal leaf sheath colour : Green
Regions recommended for farming: General cultivation (Basmathi type)
RRDI_At311_Grain
RRDI_At311_Rice
RRDI_At311_Plant

Grain Quality Characteristics

Weight per bushel of paddy 17.3 kg
1000 grain weight20.7 g
Brown rice recovery ( based on weight)75.30%
Milling recovery ( based on weight)66.20%
Head grain recovery  ( based on weight)64.30%
Grain shapeLong slender
Pericarp colour Red
Amylose contentHigh
Gelatinization temperature High
Presence of buff colour No

 

Reaction to Pest and Disease

Pest/DiseaseLevel Of Resistance
BlastModerately Resistant 
Bacterial Leaf BlightModerately Susceptible
Gall MidgeResistant/Moderately Resistant
Brown PlanthopperModerately Resistant 

Grain Quality Characteristics

Weight per bushel of paddy 17.3 kg
1000 grain weight20.7 g
Brown rice recovery ( based on weight)75.30%
Milling recovery ( based on weight)66.20%
Head grain recovery  ( based on weight)64.30%
Grain shapeLong slender
Pericarp colour Red
Amylose contentHigh
Gelatinization temperature High
Presence of buff colour No

 

Resistance to Pests and Diseases

Pest/DiseaseLevel Of Resistance
BlastModerately Resistant 
Bacterial Leaf BlightModerately Susceptible
Gall MidgeResistant/Moderately Resistant
Brown PlanthopperModerately Resistant