Central Rice Research Institute Annual report...2011-12

Genetic Enhancement
of Yield
New Varieties Released/Identified
Sumit (CR662-22-1-1-1-1; IET19913)
Developed from the cross IR32/IR13246 was released
for rainfed lowlands of Odisha. It has maturity
duration of 150 days, plant height of 108-115 cm and
long bold grain. The average yield of the variety is 5.2 t
ha -1 and has resistance to leaf blast, stem borer, leaf
folder, glume discoloration and has moderate tolerance
to neck blast, brown spot, bacterial leaf blight, sheath
blight, sheath rot, green leaf hopper, gall midge, rice
thrips and has tolerance to submergence for one week.
Satyabhama (CR2340-11; IET20148)
Developed from the cross IR31238-350-3-2-1/
IR41054-102-2-3-2 was released for favourabe uplands
of Odisha. It has maturity duration of 110 days with
semi-dwarf (100-105 cm) and non-lodging plant type
moderate tillering, long panicle with medium slender
grain. The average yield of the variety is 4.7 t ha -1 , while
under drought situation it has yield potential of 2.3 t
ha -1 . It has moderate resistance to stem borer, leaf folder
and whorl maggot attack and moderate tolerance to
white backed planthopper, gall midge, hispa, thrips
and moderate tolerance to leaf blast, rice tungro virus
disease and glume discoloration.
Jalamani (CR2282-1-2-5-1; IET20214)
Developed from the cross Panikekoa/Ambika was
released for deepwater rice areas of Odisha. It has maturity
duration of 160-165 days, tall plant type (150 cm),
moderate kneeing ability, phenotypic acceptability and
elongation ability moderate tillering with medium slender
grain. The average yield of the variety is 4.6 t ha -1 .
The variety is moderately resistant to leaf folder, green
leaf hopper, leaf blast, neck blast, brown spot, gall midge,
dead heart, stem borer, whorl maggot and rice thrips.
Jayanti (CR2080-169-3-2-5-2; IET20706)
Developed from the cross Samson Polo/Jalanidhi
was released for deepwater rice areas of Odisha. It has
maturity duration of 165-170 days, tall plant type (170
cm), moderate kneeing ability, phenotypic acceptability
and elongation ability moderate tillering, compact
panicle with medium slender grain. The average yield
of the variety is 4.6 t ha -1 . The variety is moderately
resistant to leaf blast, neck blast, sheath bight, sheath
rot, rice tungro virus and gall midge biotype1 while
resistant to stem borer, leaf folder, rice thrips, and whorl
maggot.
Pyari (CR2624-IR55423-01; IET21214)
Developed from the cross UPL RI 5/IR12979-24-1
(Brown) was released for aerobic/water limiting rice
areas of Odisha. It has maturity duration of 115-120
days, semi dwarf, non-lodging plant type, moderate
tillering with compact panicle and short bold grain.
The average yield of the variety is 4.5 t ha -1 . The variety
is moderately resistant to leaf blast, neck blast, brown
spot, stem borer, whorl maggot, gall midge and leaf
folder attack.
Hue (CRK26-1-2-1; IET19351)
Developed from the cross IR42/Rahaspanjar was
released for mid duration irrigated ecosystem of Odisha.
It has maturity duration of 130-135 days, long slender
grain and average grain yield capacity of 4.5 to 5.5 t ha -
1
. The variety has resistance to gall midge and moderately
resistant to sheath rot.
Luna Sankhi (CR2577-1; IET21237)
Developed from the cross IR31142-14-1-1-3-2/
IR71350 was released for dry season cultivation in
coastal saline area of Odisha. It has maturity duration
of 105-110 days, plant height of 105 cm, medium slender
grain and has average grain yield capacity of 4.6 t
ha -1 . This variety is tolerant to leaf blast and has moderate
tolerance to sheath blight.
Luna Barial (CR2092-158-3; IET19472)
Developed from the cross Jaya/Lunishree was released
for wet season cultivation in coastal saline area
of Odisha. It has maturity duration of 150-155 days,
plant height of 120 cm, medium slender grain and has
average grain yield capacity of 4.1 t ha -1 . This variety is
tolerant to leaf blast and has moderate tolerance to leaf
folder and sheath blight.
20 CRRI ANNUAL REPORT 2011-12