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

DRR Annual Progress Report 2010, Vol.1 – Varietal Improvement
AROMATIC SHORT GRAIN OBSERVATIONAL NURSERY (ASGON)
IET No/ Designation Yield FD Yield advantage % over Grain % increase over
(kg/ha) (days)
Type best check
Badshabhog Kalanamak Local Region / Rank
21850
4310 120 65.5 86.5 39.2 MS R3-1 (44.1)
CN 1268-5-7
R4-1 (47.6)
R5-3 (16.1)
21842
R 1536-136-1-77-1
21839
MGD 109
Badshahbhogh 2604 118
Kalanamak 2310 114
Local 3097 114
3686 111 41.5 59.5 19.0 SB R3-4 (12.2)
R4-1 (62.0)
R5-1 (23.1)
3643 117 39.9 57.7 17.6 SB R3-2 (17.7)
R4-7 (27.9)
1.xix
Biotic stress
tolerance
MR-SBWE
R-GMB4,
MR-SBWE
Nine short grain aromatic semidwarf cultures showed commendable performance of the 22
tested for yield across 25 locations and are promoted to IVT-ASG. All have aroma and good quality
features. The top entries to name a few include IET 21850 (CN 1268-5-7), IET 21842 (R 1536-136-1-
77-1), IET 21839 (MGD 109) etc. IET 21850 has moderate resistance to stem borer while IET 21842
has resistance to GMB4 and moderate resistance to stem borer.
SALINE AND ALKALINE TRIALS
Rice crop is often exposed to salt stress such as salinity both inland and coastal and alkalinity limiting
rice production. Soil heterogeneity, environmental influence, the complexity of salt tolerance mechanisms has a
direct influence on breeding efforts to these stresses. Therefore in order to identify high yielding varieties
insulated with salt tolerance, Alkaline and Inland Saline Tolerant Variety Trial (AL&ISTVT) and National
Saline and Alkaline Screening Nursery (NSASN) are constituted with 67 entries and screened at 23 relevant
centres.
ALKALINE AND INLAND SALINE (AL & ISTVT) INLAND SALINITY
IET No. /
Grain FD Yield advantage % over Grain Biotic
Designation Yield
(kg/ha)
(days) CSR 36 CSR 23 Jaya Local type stress tolerance
20341
CR 661-236-1-3
3504 121 61.8 8.0 384.0 9.9 LB --
CSR 36 (Alkaline -
Check)
2165 121
CSR 23 (Inland saline-
Check)
3244 118
Jaya
(Yield check)
723 108
Local 3186 119
Bold italic ; Best check & over best check; Figures in the parenthesis indicate % increase over the best check; Highlighted : Desirable grain quality; FD : Flowering
duration; NC : National check; RC : Regional check LC : Local check; R2 : Northwestern, R3: Eastern; R4: western, R5 : Southern region, # State(s) in which promising;
Highlighted: Desirable quality
IET 20341 (CR 661-236-1-3) surpassed the best check CSR 23 and found promising for inland
salinity on overall basis. It has long bold grains and good quality components. None of the entries was
superior to the best check CSR 36 in alkaline conditions.
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