இலங்கையின் அரிசி இனங்கள்

உயர்தர மானிடப்புவியியலில் புதிதாக அறிமுகப்படுத்தப்பட்டுள்ள விவசாயத் தொழிநுட்பம் எனும் பகுதியில், இலங்கையில் புதிதாக விருத்தி செய்யப்பட்ட விதையினங்கள் தொடர்பாக கற்கவேண்டியுள்ளது. இந்த விடயத்திற்கு இலங்கை விவசாயத் திணைக்களத்தினால் சிபாரிசு செய்யப்பட்ட புதிய அரிசியினங்கள் பற்றிய தரவுகள்  இங்கு பிரசுரிக்கப்படுகின்றது.

 தரவுகள் ஆங்கிலத்தில் உள்ள போதிலும் இலங்கையில் புதிய அரிசியனங்கள் தொடர்பாக அறிந்து கொள்ள வழிவகுக்கும்.

Paddy Varieties

New Improved Rice Varieties Recommended by the Department of Agriculture
Variety by
mat. dur.
Year released
Pedigree
Recommended
for
Mat. dur.
(days)
Higher yld.
recorded
(t/ha)
Attributes
5-6 month             
Bg 3-5
1973
Panduruwee /Mas/ Engkatek
ML
150-180
5.5
Photoperiod sensitive (PS)
Bg 407
1981
IR5/Panduruwee
ML
150-180
7.5
PS, resistant to BB
Bg 745
1981
71-554/Podiwee A8
ML
150-180
6.0
PS, samba grain
Bg 38
1981
Engkatek/ H-4/ Podiwee A8
ML
150-180
6.0
PS, samba grain
4 ½ month
Bg 379-2
1980
Bg96-3*2/Ptb33
GC
135
8.5
Resistant to BPH and BB
Bg 380
1982
Bg90-2*4/Ob677
MI/DI
120
10.0
Very high yield, resistant to GM-I
Bg 450
1985
Bg12-1*2/IR42
GC
130
6.0
Samba grain, resistant to GM-I
Bg 403 **
1993
83-1026/Bg 379-2
GC
120
8.0
White pericarp resistant to BL and BLB
Bw 451
1987
Bg400-1/Bg11-11
LCWZ, saline soils
135
6.0
White pericarp, replacement for Pokkali
Bw 400
1987
Bw259-3/Bw242-5-5

120

Red tolerant to salinity resistant to blast
Bw 452
1992
Hondarawala 502/C104
GC
135
5.0
Red pericarp, an old improved variety, but higher response to added nitrogen and resistant to lodging tolerant to iron toxicity and submergence in LCWZ.
Bw 453
1992
IR 2071-586/Bg400-1
LCWZ
135
7.0
White pericarp, MR to leaf blast, R to GM-I and tolerant to iron toxicity.
Bg 454 
2005
MR 1523/87-519
GC with assured supply of water
128
9.0
White pericap MR to BPH, RGM, and MR to Blast, BLB
Ld 66
1971
H-501/Deo-Geo-Woo-gen
Iron toxic soils and acidic soils
135
5.0
White pericarp, more suitable for broadcasting
4 Month
At 401
1992
Bg94-1/Pokkali
Costal saline areas
120
5.0
Red pericarp, replacement for pokkali
At 402
1992
IR4432-52-6-4/Bg90-2//
76-3990/Ob678
Southern province
120
7.5
Red pericarp, good for Matara, Hambantota and replacement for H4
At 405
(Lanka Samurdi)
1997
At 402/Basmathi 442
Dry and Intermediate zones with assured supply of water
120
5.6
MR to BPH
Basmathi grain quality
Long/Slender
Bg 406
2005
Bg 73 –797/ptb 33/ob 678 
Northern region
120
7.0
Red pericarp R to BPH and MR to Blast
Bg 407H
2005
Bg CMS IA x IR54742-22-19-3R
High potential area 
120
13.0
Hybrid variety
White pericarp Resistant tO Blast, BPH and RGM Tolerant to Irontoxicity
3 ½ month
Bg 350
1986
Bg 94-1///Bg401-1/80-3717
//Bg 94-1
GC
105
8.5
Red pericarp,
resistant to GM-I
Bg 352
1992
Bg 380/Bg 367-4
GC
105
6.0
Resistant to Bl and BPH white pericarp,  Intermediate bold type grains
Bg 357
1997
Bg 797/Bg 300//85-1580/ Senerang M-17
Islandwide cultivation
106
9.55
Resistant to BPH, GM 1 and 2, MR to thrips, R/MR to Blast, MR to (Iron toxicity) and low temperature. White pericarp, L/M
Bg 358
1999
Bg 12-1/Bg 1492
GC
105
9.5
Samba, Resistant to BPH, BL and BLB, moderately tolerant to Iron toxicity
Bg 359
1999
88-5089/Bg 379-2
WZ
105
7.0
Resistant to GM I and II BPH, BL, moderately tolerant to Iron toxicity
Bg 360
(Keera samba)
1999
84-3346/IR36//Senerang
GC
105
6.5
Good grain quality. Resistant to GM I and II
Bw 266-7
1981
Bw 242-5-5//Ob 677/
"Bg90-2
As a regional release
105
4.5
Non lodging, white (long for Ratnapura slender) quality grains, resistant to GM-I
Bw 267-3
1981
Ld 125/Bw 248-I
LCWZ, Iron toxic soils
105
4.5
White pericarp, long slender grains, resistant to BL, Iron toxicity and seed spotting
Bw 351
1986
Bg 90-2/Bg 401-1
High potential areas (mineral soils) of LCWZ
105
5.0
Red pericarp, moderately resistant to sheath blight and iron toxicity
At 16
1977
IR 8/H-4
Southern province
105

Red pericarp, resistant to lodging and BL
At 353
1992
Bg 94-1 (R)/Bg 400-1//
Bg 94-1
Saline area
105
6.5
Red pericarp, MR to Blast and BB, good for potential acid saline conditions found in Nilwala scheme.
At 354
1992
Bg 94-1/Pokkali
Saline areas
105
5.0
White pericarp, saline resistant, resistant to lodging
Ld 355
1994
Bw 451/IR50
Southern Province
105
4.5
Samba grain, resistant BL, BLB
Ld 356
1994
Bw 451/Bw 351
Kalutara and Gall districts
100
4.5
Short round grain/moderately tolerant to iron toxicity resistant to seed spots and rice Gallmidge
Bw 361
2002
IR 36/Bw 267-3-11M
Dry & Intermediate zone
105
5.0
Red pericarp, GM-MR, BPH-MR, BL-MR
At 362
2002
At 85-2/Bg 380
GC
105
7.0
Red pericarp, BPH-MR, BL-Mr, BLB-MR/MS
Bw 363
2004
IR 36 / Bw 267-3-11M
GC
105
10
White pericarp, moderately resistant to blast BPH & Gm 
Bg 364
2006
Bw 400/ob 2552// Bg 357                                           
Wet Zone
105  
7.0
Red pericarp, iron toxicity,Red
Blast, BLP,BHP & RGM
    
3 month
Bg 300
1987
Bg 367-7//IR 841/Bg 276-5
GC
90
7.0
Resistant to GM-1, BPH, BL and BB
Bg 301
1987
1280/H-4
RF/DI
90
6.0
Red pericarp, tolerant to drought, BL and BB
Bg 304
1993
Co 10/IR 50//84-1587/
Bg 731-2
GC
85
7.4
Good grain quality. White pericarp resistant to BPH, GM I and II, BL and BLB suitable to RF drought prone area
Bg 305
1999
Bg 1203/Bg 1492
GC
90
8.0
White pericarp , resistant to GM I and II, BPH, BL and BLB
Bw 272-6B
1981
Bw 259-3/Bw 242-5-5
LCWZ, (suitable for mineral, half bog and bog soils)
90
4.0
Red pericarp, replacement for Herath Banda, Batapolal, resistant to BL, resistant to lodging
At 303
1990
At 66-2/Bg 276-5
GC
90
5.0
Red pericarp, resistant to BL
At 306
2004
OB 2273/At 05
GC
90
6.0
Basmathi green quality , long / slender, moderately resistant to BLB and GM Resistant to  blast and BPH  
At 307
2005
Bg 2225-1// BG 96-3298
GC
90
7.0
White pericap resistant to BPH RGM and Blast
2 ½ month
Bg 750
1981
Ainantsao//75-1870/PP
LCIZ
70
3.0
Ultra-short maturity
Bg 250
2005
Selection from farmer field
Rainfed and flash flood areas 
80
4.5
Ultra-short maturity
R/MR for BPH and Blast

Rice varieties developed by the Department of Agriculture, Sri Lanka
Five to Six month varieties
Four to four and a half month varieties
Three and a half month varieties
Three month varieties
Two and a half month varieties

Abbreviations
* No longer recommended
** Mahasen WP - Wite Pericarp RP - Red Pericarp
BB - Bacterial blight BL - Blast BPH - Brown Planthopper
GM-I - gall midge (Biotype I) PS - Photoperiod sensitive
Recommendations : GC = general cultivation MI/DI = Major Irrigation in Dry and Intermediate zones
ML = Mawee lands RF/DI = rainfed Dry and Intermediate zone
RF/M = Fainfed/Manawari
Bg - Batalagoda MI - Mahailluppalama
BW - Bombuwela H - First set of purelines developed at Batalagoda through hybridisation.
At - Ambalantota Therefore H denotes Hybrids.