Directorate of Rice Research (DRR), through All India Coordinated ...

DRR Annual Progress Report 2010, Vol.1 – Varietal Improvement
Two cultures which surpassed the best check – local in yield were promoted to AVT-2E-TP.
These include IET 21626 (CR-2699) and IET 21630 (CR 2707) with the latter culture also having
desirable grain quality parameters. IET 21626 has moderate resistance to sheath blight and WBPH
while IET 21630 has moderate resistance to WBPH. One hybrid IET 21401 (25P25) was also
promoted based on its superior performance in R5 over both the hybrid and best varietal check.
Good progress was achieved in IVT-E-TP. Of the 45 entries tested 4 and 16 cultures were
promoted based on the overall and regional superiority respectively over the best check. The most
promising ones include IET 22080 (RP 5124-11-6-2-IR 838876-B-F3 Bulk), IET 22057 (UPR 3425-
14-3-1), IET 22081 (RP 5127-9-3-IR-93376-B-B-130) and IET 22069 (T 05091). IET 22081 has
resistance to gallmidge biotype 5.
ADVANCE VARIETY TRIAL 1 – IRRIGATED MID EARLY (AVT 1 – IME)
IET No/ Yield FD Yield advantage % over Grain % increase over best check States Biotic
Designation (kg/ha) (days) NC HC RC Local Type State / Rank Region / Rank
stress
tolerance
21415
27P31
(Hybrid)
20727
US-382
(Hybrid)
20716
VNR-204
(Hybrid)
21582
OR 2172-7
5847
5727
5704
IR 64 (NC) 4794
96 21.96
93 19.46
95 18.98
12.53
10.22
9.78
21.46
19.86 LB JH-1 (22.06)
(28.03)
CH-1 (23.26)
(15.56)
TR-4 (31.01)
(6.91)
TN-1 (55.21)
(58.08)
KA-1 (18.46)
(27.01)
18.96 17.40 LB JH-2 (15.94)
(21.60)
TR-1 (45.96)
(19.13)
KE-1 (29.86)
(30.76)
KA-2 (12.83)
(20.98)
18.49
16.93 LS JH-5 (13.73)
(19.29)
CH-4 (21.27)
(13.69)
TR-3 (33.61)
(9.03)
TN-2 (36.95)
(39.49)
KE-3 (14.59)
(15.39)
5172 95 7.88 -- 7.44 6.03 LS RA-2 (14.06)
TR- (8.13)
MA-7 (19.81)
89
PA 6201
(HC)
5196 93
Regional
check (RC)
4814 94
LC 4878 94
1.ix
R3-1 (22.50) (8.82)
R5-1 (14.13) (15.41)
R3-3 (20.81) (7.32)
R4-4 (18.04) (5.00)
R-2 (12.35) (13.60)
R5-3 (11.26) (12.50) CH
TR
TN
-- MR-LBl,
NBl
KA MR-NBl,
WBPH
MR-LBl,
BLB,
GLH
R4-6 (16.66) -- MR-BS
Bold italic ; Best check & over best check; Figures in the parenthesis indicate % increase over the best check and * over hybrid check; Highlighted : Desirable grain
quality; FD : Flowering duration; NC : National check; RC : Regional check, HC : Hybrid Check, LC : Local check; R2 : Northwestern, R3: Eastern; R4: Western, R5 :
Southern region, # State(s) in which promising
In the irrigated mid-early group two hybrids which are in the final year of testing viz., IET
20716 (VNR 204) and IET 20727 (US 382) surpassed the hybrid check (PA 6201) and the best varietal