Rice (Oryza sativa L.)
Season and Varieties
District/Season 
Month 
Varieties 
1. Thanjavur/Nagapattinam/Tiruvarur 
Kuruvai 
(Jun Jul) 
ADT 36, ADT 37, ASD 16, ASD 18, MDU 5, IR 50, ADT 43, ADT (R) 45, ADT (R) 47, ADT (R) 48,
CO 47, CORH 3 
Samba 
(Aug) 
I.White Ponni, CO 43, CR 1009, ADT 38, TRY 1*, TRY 3*, ADT (R) 44, CORH 4, CO (R) 48,
CO (R) 49, CO (R) 50, ADT (R) 49,TNAU Rice ADT 50, Swarna sub1 
Late Samba / Thaladi 
(Sep Oct) 
ADT 38, ADT 39, TRY 1*, TRY 3*, ADT (R) 46, ADT (R) 49, CO (R) 48, CO (R) 49, CO (R) 50 
Navarai 
(Dec Jan) 
ADT 36, ADT 37, ASD 16, ASD 18, MDU 5,
CO 47,CORH 3 
2. Tiruchirapalli 
Kuruvai 
(Jun Jul) 
ADT 36, ASD 16, ADT 37, ASD 18, MDU 5,
ADT 43, CO 47, ADT (R) 45, ADT (R) 47, CORH 3 
Samba 
(Aug) 
I.White Ponni, CO 43, CR 1009, TRY 1*, TRY 3* ASD 19, ADT (R) 44,
CO (R) 48, CO (R) 49,
CO (R) 50, ADT (R) 49, TNAU Rice ADT 50, CORH 4 
Late Samba / Thaladi 
(Sep Oct) 
I.White Ponni, ADT 39, TRY 1*, TRY 3*, ADT (R)46, CO (R) 48, CO (R) 49, CO (R) 50, ADT (R) 49 
Navarai 
(Dec Jan) 
ADT 36, ASD 16, ASD 18, MDU 5, ASD 20, CO 47,CORH 3 
3. Kanchipuram/Tiruvallur 
Sornavari 
(April May) 
ADT 36, ADT 37, ASD 16, ASD 18, MDU 5, IR 50, ADT 43, CO 47,
ADT (R) 45, ADT (R) 47,
ADT (R) 48, CORH 3 
Samba 
(Aug) 
I.White Ponni, CO 43, TRY 1*, TRY 3*, ADT(R) 44, CORH 4, CO (R) 48, CO (R) 49, CO (R) 50,
ADT (R) 49, TNAU Rice ADT 50 
Late Samba 
(Sep  Oct) 
I.White Ponni, ADT 39, TRY 1*, TRY 3*, ADT (R)46,CO (R) 48, CO (R) 49, CO (R) 50, ADT (R) 49 
Navarai 
(Dec  Jan) 
ADT 36, ASD 16, ASD 18, MDU 5, CO 47,CORH 3 
Rainfed direct seeded 
(July  Aug) 
MDU 5, TKM 11,PMK (R) 3, TKM (R) 12, Anna (R) 4 
Semidry 
(July  Aug) 
TKM 10, TKM 11, TKM (R) 12, MDU 5,
PMK (R) 3, Anna (R) 4 
4. Vellore/Tiruvannamalai 
Sornavari 
(AprilMay) 
ADT 36, ADT 37, ASD 16, ASD 18, ADT 43, MDU 5, IR 50, CO47, ADT(R)45, ADT(R)47, ADT(R)48, CORH3 
Samba 
(Aug) 
CR 1009, ADT 44, Bhavani, I.White Ponni, CO 43, Paiyur 1, TRY 1*,
TRY 3*, CORH 4, CO (R) 48, CO (R) 49, CO (R) 50, ADT (R) 49,
TNAU Rice ADT 50 
Navarai 
(Dec Jan) 
ADT 36, ADT 39, ASD 16, ASD 18, MDU 5,
CO 47,CORH 3, ADT 43, ADT (R) 45 
5. Cuddalore/ Villupuram 
Sornavari 
(April May) 
ADT 36, ASD 16, ASD 18, ADT 43, ADT (R) 45, ADT (R) 47, MDU 5,
IR 50, CO 47, CORH 3 
Samba 
(Aug) 
I.White Ponni, CO 43, CR 1009, ADT 38, TRY 1*, ASD 19, ADT (R) 44, CORH 4, CO (R) 48,
CO (R) 49, CO (R) 50, ADT (R) 49,
TNAU Rice ADT 50 
Navarai 
(DecJan) 
ADT 36, ADT 39, ASD 16, ASD 18, ADT 43, ADT (R) 45, MDU 5,
CO 47,CORH 3, ADT 43,
ADT (R) 45 
6. Coimbatore/Tirupur 
Kar 
(May  Jun) 
ADT 36, ASD 16, ASD 18, MDU 5, IR 50, ADT 43, CO 47, ADT (R) 45, ADT (R) 47, CORH 3 
Samba 
(Aug) 
CO 43, I.White Ponni, TRY 1*, TRY 3*, Bhavani, ADT(R) 44, CORH 4,
CO (R) 48, CO (R) 49,
CO (R) 50, ADT 38, ADT (R) 49,TNAU Rice ADT 50 
Late Samba/Thaladi 
(Sep  Oct) 
ADT 38, ADT 39, ADT(R) 46, CORH 4, CO (R) 48,CO (R) 49, CO (R) 50, ADT (R) 49 
Navarai 
(Dec Jan) 
ADT 36, ASD 16, MDU 5, CO 47, ADT (R) 47,CORH 3, ADT 43, ADT 45 
7. Erode 
Kar 
(May  Jun) 
ASD 16, ADT 36, IR 50, MDU 5, ADT 43, CO 47, ADT (R) 45, ADT (R) 47, CORH 3 
Samba 
(Aug) 
Bhavani, CO 43, I.White Ponni, TRY 1*, ADT (R) 44, CO (R) 48, CO (R) 49, CO (R) 50, ADT 38, ADT (R) 49, TNAU Rice ADT 50 
Late Samba 
(Sep  Oct) 
I.White Ponni, ADT 39, TRY 1*, ADT 38, ADT (R) 46,CORH 4, CO (R) 48, CO (R) 49, CO (R) 50,
ADT (R) 49 
Navarai 
(Dec – Jan) 
ADT 36, ASD 16, ADT 43, ADT 45, CO 47,MDU 5, CORH 3 
8. Karur/Perambalur/Ariyalur 
Kuruvai 
(Jun Jul) 
ADT 36, ASD 16, ADT 37, ASD 18, IR 50, MDU 5, ADT 43, CO 47,
ADT (R) 45 (except Karur), DT(R)47,CORH 3 
Samba 
(Aug) 
I.White Ponni, CO 43, ADT 40, CR 1009, TRY 1*, ADT 38, ADT(R) 44, CO(R) 48, CO(R) 49,
CO (R) 50, ADT(R)49, TNAU Rice ADT50,
Swarna Sub1, ADT(R) 46 
Late Samba / Thaladi 
(Sep Oct) 
I.White Ponni, ADT 39, CO 43, TRY 1*, ASD 19, 


ADT 38, ADT (R)46, CO (R) 48, CO (R) 49,
CO (R) 50, 
Navarai 
(Dec Jan) 
ADT (R) 49 ADT 36, ASD 16, ASD 18, MDU 5,
CO 47, ADT 43, ADT 45, CORH 3 
9. Salem/Namakkal 
Kar 
(May  Jun) 
ADT 36, ADT 37, ASD 16, ASD18, MDU 5,
ADT 43,CO 47, ADT (R) 45, ADT (R) 47,CORH 3 
Samba 
(Aug) 
I.White Ponni, Bhavani, CO 43, TRY 1*, TRY (R ) 3*, ADT (R) 44,
CO (R) 48, CO (R) 49, CO (R) 50, ADT (R) 49, TNAU Rice ADT 50 
Navarai 
(Dec  Jan) 
ADT 36, ASD 18, ASD 19, ADT 42, MDU 5,
ASD 20,CORH 3, ADT 43, ADT 45 
10. Dharmapuri/ Krishnagiri 
Kar 
(May Jun) 
ADT 36, ADT 37, ASD 16, ASD18, MDU 5, ADT 43, CO 47, ADT (R) 45, ADT (R) 47,CORH 3 4 
11. Kanyakumari 
Kar 
(May –Jun) 
ADT 36, ASD 16, ASD 17, ASD 18, MDU 5, ADT 43, ADT(R) 45, CO 47, ADT (R) 47, CORH 3 
Pishanam / Late Samba / Thaladi 
(Sep – Oct) 
I.White Ponni, CR 1009, CO 43, TRY 1*, TPS 2, TPS 3, ADT (R) 44,
ADT 39, ASD 18, ASD 19, MDU 5, ADT (R) 46, CORH 4, CO (R) 48,
CO (R) 49,
CO(R) 50, ADT (R) 49 
Semi dry 
(Jul – Aug) 
ADT 36, ASD 17, TKM (R) 12, PMK (R) 3 
Samba/Late Samba 
(Aug  Oct) 
TRY 3*, Bhavani, I.White Ponni, CO 43, ADT (R) 44, ADT(R) 46,
CO(R) 48, CO(R) 49, CO(R) 50,
ADT(R) 49 
Navarai 
(Dec Jan) 
ADT 37, ASD 16, ADT 36, ASD 18, ADT 42,
MDU 5, ASD 20, CORH 3 
12. The Nilgiris 
Samba 
(Jul Aug) 
CO 43, ADT (R) 46, ADT 39, CORH 4 
13. Pudukottai 
Kuruvai 
(Jun Jul) 
ADT 36, ASD 16, MDU 5, CO 47, ADT 43,
ADT (R) 45, ADT (R) 47, CORH 3 
Samba 
(Aug) 
I.White Ponni, CO 43, Ponmani, TRY 1, ADT (R) 44, CORH 4, CO (R) 48, CO (R) 49, CO (R) 50,
ADT (R) 49, TNAU Rice ADT 50 
Late Samba/Thaladi 
(Sep  Oct) 
ADT 38, ADT 39, TRY 1*, ASD 19, CO 43,
ADT (R) 46, CO (R) 48,
CO (R) 49, CO (R) 50,
ADT (R) 49 
Rainfed direct seeded 
(Jul Aug) 
ADT 36, TKM 10, TKM (R) 12, PMK (R) 3, Anna (R) 4 
Semidry 
(Jul Aug) 
ADT 36, TKM 10, TKM (R) 12, PMK (R) 3, Anna (R) 4 
14. Madurai/Dindigul/Theni 
Kar 
(May Jun) 
ADT 36, ADT 37, ASD 16, ASD 18, ADT 42, MDU 5, ASD 20, ADT43, CO47, ADT(R)45, ADT(R)47, CORH 3 
Samba 
(Aug) 
I.White Ponni, CO 43, ADT (R) 46,TRY 3*, ADT (R) 44, CORH 4,
CO (R) 48, CO (R) 49, CO (R) 50,
ADT (R) 49, TNAU Rice ADT 50 
Late Samba/Thaladi 
(Sep  Oct) 
I.White Ponni, ADT 39, ADT 38, ADT (R)46,
CO (R) 48, CO (R) 49,
CO (R) 50, ADT (R) 49, CORH 4 
Navarai 
(Dec Jan) 
ADT 36, ADT 37, ASD 16, ASD 18, MDU 5,
CORH 3 
Semidry 
(Jul Aug) 
MDU 5, TKM (R) 12, PMK (R) 3, Anna (R) 4 
15. Ramanathapuram 
Samba 
(Aug) 
I.White Ponni, CO 43, TRY 1*, ADT (R) 44,
CORH 4, CO (R) 48,
CO (R) 49, CO (R) 50, ADT (R) 49, TNAU Rice ADT 50 
Rainfed direct seeded & Semidry 
(Jul Aug) 
MDU 5, TKM (R) 12, PMK (R) 3, Anna (R) 4,
RMD (R) 1 
16. Virudhunagar 
Samba 
(SepOct) 
CO 43, TRY 1, TRY 3*, ADT (R)46, ADT 39,
CORH 4, CO (R) 48,
CO (R) 49, CO (R) 50,
ADT (R) 49 
Rainfed direct seeded 
(Jul Aug) 
ADT 36, MDU 5, TKM (R) 12, PMK (R) 3,
Anna (R) 4 
17. Sivaganga 
Semidry 
(Jul –Aug) 
ADT 36, ADT 39, MDU 5, PMK (R) 3, Anna (R) 4 
18. Tirunelveli, Thoothukudi 
Early Kar 
(Apr  May) 
ADT 36, ADT 42, ADT 43, ADT 45, CO 47,
ADT (R) 47, IR 50 
Kar 
(May Jun) 
ASD 16, ASD 18, IR 50, ADT 43, CO 47,
ADT (R) 45, TRY (R) 2*,
ADT (R) 47, CORH 3 
Late Samba/Thaladi 
(Sep  Oct) 
I.White Ponni, ADT 39, TRY 1*, ADT (R)46,
CORH 4, CO (R) 48,
CO (R) 49, CO (R) 50, ADT (R) 49 
Pishanam/Late Pishanam 
(SepOct.) 
ASD 18, ASD 16, CO 43, TRY 1*, ADT (R) 46, CORH 4, CO (R) 48,
CO (R) 49, CO (R) 50,
ADT (R) 49 
Semi Dry 
(July Aug) 
MDU 5, ADT 36, TKM (R) 12, PMK (R) 3,
Anna (R) 4 
* suitable for salt affected soils
Note of Caution of the varieties: IR 50 and ADT43 are recommended for Kar, Sornavari and Kuruvai seasons and should not be grown during cold weather period. Improved White Ponni is also susceptible to blast and care should be taken on plant protection measures. All samba/late samba season varieties are likely to get infected with false smut and hence prophylactic spraying has to be adopted.
Rice Seasons of Tamil Nadu
Month of sowing 
Season 
Duration (Days) 
Districts 
Dec  Jan 
Navarai 
< 120 
Tiruvallur, Vellore, Tiruvannamalai, Cuddalore, Villupuram, Tiruchirapalli, Perambalur, Karur, Nagapattinam, Madurai, Theni, Salem, Namakkal, Dindigul, Dharmapuri, Coimbatore,Erode and Pudukkottai. 
Apr  May 
Sornavari 
<120 
Tiruvallur, Vellore, Tiruvannamalai, Cuddalore, Villupuram, Namakkal, Dharmapuri 
Apr  May May  June 
Early Kar
Kar 
<120 
Tirunelveli, Kanyakumari, Thoothukudi, Erode, Coimbatore, Madurai, Theni, Dindigul, Salem, Namakkal, Dharmapuri. 
June  July 
Kuruvai 
<120 
Tiruchirapalli, Perambalur, Karur, Thanjavur, Nagapattinam, Tiruvarur, Pudukottai, Erode 
July  Aug. 
Early Samba 
130 to 135 
Tiruvallur, Vellore, Tiruvannamalai, Salem, Namakkal, Cuddalore, Villupuram, Madurai, Theni, Ramanathapuram, Dharmapuri, Coimbatore, Erode, Pudukkottai, The Nilgiris 
August 
Samba 
130  135 and >150 
All districts 
Sep  Oct 
Late Samba
Thaladi/Pishanam 
130  135 
Tiruvallur, Madurai, Theni, Coimbatore, Erode 
Sep Oct 
Late Pishanam 
130  135 
Madurai, Theni, Dindigul, Kanyakumari,
Tirunelveli , Thoothukudi 
Oct  Nov 
Late Thaladi 
115 120 
Thanjavur, Nagapattinam, Tiruvarur, Tiruchirapalli, Perambalur, Karur 
Hybrid seed production Techniques (ADTRH 1 and CORH 2)
Staggered sowing
Sowing Time (Western zone)
Dec – Jan
Updated on 2013
