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

In the advanced Spanish type trial in 2005/06, 12 lines significantly out-yielded (pod yield 4.6 - 5.6 ± 0.52 t ha -1 ) the
best control ICGS 11 (4.0 t ha -1 pod yield). The best entry in the trial was ICGV 04115 (5.6 t
ha -1 pod yield, 68% shelling outturn, and 50.4% oil), followed by ICGV 04124 (5.5 t ha -1 , 69%, and 47.6%). In the
advanced Virginia type trial 14 entries produced significantly higher pod yield (4.3 - 5.5 ± 0.60 t ha -1 ) than the best
control ICGS 76 (3.7 t ha -1 ). ICGV 04140 (5.5 t ha -1 pod yield) and ICGV 04139 (5.5 t ha -1 ) were the best entries in
this trial. However, the former had higher 100-seed weight, and the latter higher oil content.
In the Spanish elite variety trial, all 7 test lines outperformed (3.7 - 4.8 ± 0.18 t ha -1 pod yield) the highest yielding
control ICGV 95058 (2.5 t ha -1 pod yield) during the 2006 rainy season. The best entry ICGV 04124 (4.8 t ha -1 )
originated from the cross (ICGV 92069 x ICGV 93184) x ICGV 98105. In the Virginia elite variety trial, three lines;
ICGV 04149 (4.9 t ha -1 ), ICGV 04140 (4.6 t ha -1 ), and ICGV 04139 (4.6 t ha -1 ), out-yielded the control, ICGV
86325 (2.7 ± 0.43 t ha -1 ). The best entry came from (ICGV 92069 x ICGV 93184) x ICGV 99171 cross. In another
Virginia elite variety trial (conducted with the material transferred from short-duration trials), all 22 lines
significantly out-yielded (3.8-3.1 ± 0.43 t ha -1 ) the best control ICGS 76 (2.5 t ha -1 ). Seven medium-duration lines
were selected in the 2005/2006 post-rainy season for inclusion in international trials.
Confectionery types: One hundred and sixty-two advanced breeding lines (including controls) were evaluated in
nine replicated yield trials under high input conditions during the 2005/2006 post-rainy and the 2006 rainy seasons.
In the 2005/06 post-rainy season, none of the test entries out-yielded the best control in any trial. In the 2006 rainy
season, 6 lines (3.5 - 2.7 ± 0.16 t ha -1 pod yield; 57 - 66% shelling outturn; and 48 - 56 g 100-seed weight) outyielded
the best control ICGV 99085 (2.3 t ha -1 ; 65% shelling out-turn; and 42 g 100 seed weight). The best entry
ICGV 05176 (3.5 t ha -1 ; 57% shelling outturn; 49 g 100 seed weight) came from ((ICGV 88414 x USA 63) x ICGV
95172) x ICGV 00440) cross. In another advanced trial (Virginia), 2 lines, ICGV 05198 (3.1 t ha -1 ) and ICGV 05200
(3.1 t ha -1 ) outperformed the highest yielding control ICGV 00440 (2.6t ha -1 ). The best entry came from ((BPI Pn 9 x
ICGV 95172) x ICGV 88414) x (USA 63 x ICGV 95172)).
Short-duration: We evaluated 385 lines (including controls) in 14 replicated trials and 192 advanced breeding lines
in 4 augmented trials for their yield and other agronomic traits under irrigated conditions in the 2005 rainy and the
2005/2006 post-rainy seasons. The Spanish trials were harvested when the crop accumulated 1470 °Cd (equivalent
to 90 DAS in the rainy season) and the Virginia and large-seeded trials when the crop accumulated 1705 °Cd
(equivalent to 105 DAS in the rainy season) at ICRISAT Center, Patancheru, India.
None of the new breeding lines out-yielded the best control in all the eight replicated yield trials in 2005/2006 postrainy
season. In another trial, 45 elite entries, originating from different series of international short-duration
groundnut varietal trial (ISGVT) in the past 10 years, and other elite trials, were evaluated with 4 controls in a 7 x 7
lattice design. Thirteen entries out-yielded (3.4-3.9 ± 0.36 t ha -1 pod yield) the highest yielding early-maturing
control J 11 (3.0 t ha -1 pod yield). ICGV 00308 (3.9 t ha -1 pod yield), ICGV 97243 (3.8 t ha -1 ), and ICGV 00338 (3.7
t ha -1 ) were the most promising. ICGV 97243 belonged to the IX series, and ICGV 00308 to the X series of ISGVT
and ICGV 00338 to elite trial.
In the Spanish elite varietal trial, 6 lines significantly out-yielded (1.8 - 1.4 ± 0.12 t ha -1 pod yield) the highest
yielding control, Chico (1.1 t ha -1 pod yield) in 2006 rainy season. ICGV 03211 (1.8 t ha -1 ), the best entry among the
6 lines, came from (ICGV 98191 x ICGV 93382) cross. In another Spanish elite varietal trial, 6 lines (2.4 - 2.0 ±
0.13 t ha -1 pod yield) produced significantly higher pod yield than the highest yielding control ICGV 91114 (1.8 t ha -
1 ). ICGV 02038 (2.4 t ha -1 ), the best entry among the 6 lines, came from (ICGV 95244 x ICGV 92206) cross. Two
lines (ICGV 02022 and ICGV 02144) were identified for inclusion in the international trials during the 2005/2006
post-rainy season.
SN Nigam and R Aruna
On station evaluation of groundnut genotypes for LLS: Ten advanced breeding lines were supplied to scientists at
the University of Agriculture Sciences, Bangalore, Karnataka, India. These lines were planted during the 2005 rainy
season at UAS, Hebbal Campus, Bangalore, along with the susceptible check TMV 2 to evaluate their resistance
against LLS. The test genotypes were evaluated for disease severity at 15 day intervals and the final scores are
presented in the Table 2. Six genotypes (ICGV 01270, ICGV 00005, ICGV 00064, ICGV 01276, ICGV 87846, and
ICGV 00068) showed good level of resistance. All the ten genotypes are being evaluated during the 2006 rainy
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