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

Normal Rainfall Conditions:
DRR Annual Progress Report 2010, Vol.1 – Varietal Improvement
Of the 9 locations where experiment was conducted under rainfed direct seeded conditions 6
locations viz., Ranchi, Rewa, Jagdalpur, Tuljapur, Vyara and Derol received normal and well
distributed rainfall, hence discussed separately.
Regionwise percent increase overall mean over the best check (Normal conditions) in AVT-
VE-DS, Kharif, 2010
Entries Yield FD Overall R3 R4 R5
(kg/ha) (days) Mean (%)
IET 20859 3320 -- 32.00 25.34 36.51 --
IET 20863 2682 -- 6.64 11.49 3.42 --
IET 20871 2923 -- 16.22 7.72 21.92 --
IET 21281 2436 -- -- 4.4 -- --
IET 21289 2271 -- -- -- 9.87 --
IET 21291 2626 -- 4.41 8.31 -- --
Anjali (NC) 2425 -- -- -- -- --
Regional check (RC) 2515 -- -- -- -- --
Local check (LC) 1993 -- -- -- -- --
IET 20859 (CRR 616-B-2-66-2) derived from the cross Vandana/APO, ranked 1 st with
mean yield 3320 kg/ha, 69 days 50% flowering duration and short bold grains. It yielded 36.9%,
32.0% and 66.58% higher than the national, regional and local checks, respectively. It showed
significantly higher yield than all the checks at Jagdalpur (3309 kg/ha, 1 st ) and Vyara (5920 kg/ha,
1 st ) and to national and regional checks at Tuljapur (4127 kg/ha 9 th ) and Derol (2279 kg/ha, 1 st ). In
region 3 and 4 it yielded 25.35% and 36.51% higher than the best checks, respectively. While in the
states of Madhya Pradesh and Gujarat with yield superiority of 37.15% and 29.41% over best
check, respectively. It had high head rice recovery (69.2%), high ASV (6.0) and intermediate AC
(24.30%). It has moderate resistance to Neck Blast.
IET 20871 (CRR 427-21-BL-2), derivative of the cross Vandana/WAB-56-50, ranked 2 nd
under normal rainfall conditions with mean yield of 2923 kg/ha, 68 days of 50% flowering duration
and short bold grains. It yielded 20.5%, 16.2% and 46.7% higher than the national, regional and
local checks, respectively. It’s yield was significantly higher to all the checks at Jagdalpur (2558
kg/ha, 3 rd ) and Vyara (5080 kg/ha, 2 nd ). It also yielded significantly higher to national and regional
checks at Tuljapur (4211 kg/ha, 1 st ) and to regional check at Derol (1718 kg/ha, 4 th ). In region 3
and 4 it showed 7.72% and 21.92% higher yield than the best check, respectively. In the states of
Maharashtra (1 st ), Gujarat (2 nd ) and Madhya Pradesh (3 rd ) it’s yield superiority over best check was
14.87%, 35.18% and 7.29%, respectively. Qualitywise it had high head rice recovery (70.3%),
intermediate ASV (5.0), high AC (25.34%) and hard GC (22 mm) which is not acceptable.
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