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_At309

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

At 309

Variety name : At 309
Year of release : 2013
Pedigree : IR 70422-66-5-2/Bg 98-2571
Average yield : 6.0 t/ha
Maturity : 95 days
Plant height : 52.8 cm
Basal leaf sheath colour : Green
Regions recommended for farming: General cultivation
RRDI_At309_Grain
RRDI_At309_Rice
RRDI_At309_Plant

Grain Quality Characteristics

Weight per bushel of paddy18.5 kg
1000 grain weight 22.6 g
Brown rice recovery ( based on weight)78.60%
Milling recovery ( based on weight)71.10%
Head grain recovery  ( based on weight)47.10%
Grain shape Long slender
Pericarp colourWhite
Amylose contentLow
Gelatinization temperature Low
Presence of buff colour No

 

Resistance to Pests and Diseases

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

Grain Quality Characteristics

Weight per bushel of paddy18.5 kg
1000 grain weight 22.6 g
Brown rice recovery ( based on weight)78.60%
Milling recovery ( based on weight)71.10%
Head grain recovery  ( based on weight)47.10%
Grain shape Long slender
Pericarp colourWhite
Amylose contentLow
Gelatinization temperature Low
Presence of buff colour No

 

Resistance to Pests and Diseases

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