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_At303

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  • Telephone : +94 372 258561
  • Fax : +94 372 259881
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RRDI Rice Varieties

At 303

Variety name : At 303
Year of release : 1990
Pedigree: At 66-2/Bg276-5
Average yield : 6.2 t/ha
Maturity : 90 days
Plant height : 74.0 cm
Basal leaf sheath colour : Green
Regions recommended for farming: General cultivation
RRDI_At303_Rice
RRDI_At303_Grain
RRDI_At303_Plant

Grain Quality Characteristics

Weight per bushel of paddy 21.5 kg
1000 grain weight 26.0 g
Brown rice recovery ( based on weight)78.60%
Milling recovery ( based on weight)66.10%
Head grain recovery  ( based on weight)46.70%
Grain shapeLong medium
Pericarp colourRed
Amylose contentHigh
Gelatinization temperatureHigh
Presence of buff colour No

 

Resistance to Pests and Diseases

Pest/DiseaseLevel Of Resistance
BlastModerately Resistant /Moderately Susceptible 
Bacterial Leaf BlightSusceptible
Gall MidgeModerately Resistant 
Brown PlanthopperModerately Susceptible

Grain Quality Characteristics

Weight per bushel of paddy 21.5 kg
1000 grain weight 26.0 g
Brown rice recovery ( based on weight)78.60%
Milling recovery ( based on weight)66.10%
Head grain recovery  ( based on weight)46.70%
Grain shapeLong medium
Pericarp colourRed
Amylose contentHigh
Gelatinization temperatureHigh
Presence of buff colour No

 

Resistance to Pests and Diseases

Pest/DiseaseLevel Of Resistance
BlastModerately Resistant /Moderately Susceptible 
Bacterial Leaf BlightSusceptible
Gall MidgeModerately Resistant 
Brown PlanthopperModerately Susceptible