ICRISAT Archival Report 2006 - The seedlings of success in the ...

Entry
Days to
maturity
100 seed
wt. (g)
Seed yield
(kg ha -1 )
FW
mortality
(%)
(2005)
AB score
(mean of
2005 &
2006)
BGM score
(mean of 2005 &
2006)
Sona 100 15.3 1232 84.0 7.00 5.4
ICCV 96836 110 13.2 942 55.3 5.00 5.8
Indian Checks
ICCV 10 108 15.4 1963 15.5 7.58 6.0
JG 11 100 21.5 2756 5.2 5.50 5.2
SE ± 1.5 0.44 157.5
CV (%) 2.4 3.83 16.9
New breeding materials are being generated to develop breeding lines with resistance to multiple diseases. During
the post-rainy season 2005/06, 60 F 2 , 28 F 3 , and 10 F 4 populations were grown. The F 3 and F 4 populations were
screened for AB resistance under controlled conditions and the resistant plants were transplanted in the field. The
resistant plants from F 4 populations of 12 crosses and F 3 populations of 33 crosses were screened for AB resistance
and the resistant plants were transplanted in the glasshouse. Over 1,000 single plants were harvested and examined
for seed size, shape, and color. A total of 110 plants were selected for further evaluation and also shared with
Department of Agriculture and Food, Western Australia and Punjab Agricultural University, Ludhiana, India. A
total of 37 new crosses were made during 2006 for development of breeding lines with resistance to multiple
diseases. This included 28 intercrosses among the 10 selected F 4 /F 5 progenies and nine single crosses. The single
crosses included JG 11, Sona, Sonali, WACPE 2078, and WACPE 2099 as one parent, and ICCV 04512 or ICCV
05529 as the other parents.
PM Gaur/S Pande/CLL Gowda
Milestone: About 100 advanced germplasm and advanced breeding lines (Desi and Kabuli) screened for FW
resistance (SP/PMG/HDU) 2009
Evaluation of advanced breeding and germplasm selections for resistance to FW: Eighty nine advanced
breeding and germplasm lines were evaluated for resistance to wilt and root rots in a multiple-disease-sick-plot
(MDSP) during the 2005/06 cropping season under artificial epiphytotic conditions. Susceptible early wilting
cultivar ICC 4951 had 100% incidence within 30 DAS and the late wilting cultivar ICC 5003 showed 100%
incidence within 90 DAS. Of the 89 advanced germplasm and breeding lines, KAK 2, ICCX 950106-F 4 -40P-BP,
ICCX 950106-F 4 -43P-BP, ARFG 8, NNW 7, NNW 8, ICCX-970047-BP-BP-P27-BP, and ICCX 980068-F 4 -P10-BP
were asymptomatic (0%), while 80 lines showed a resistant reaction (