Screening of different varieties/lines of chickpea against pod borer, helicoverpa armigera (hubner)

Abstract

Abstract : Fourteen chickpea lines and six released varieties were screened against pod borer damage during the rabi season of 2003-04 at Regional Agricultural Research Station Ishurdi, Pabna, Bangladesh. Different varieties/lines showed significant difference in the extent of pod damage. ICCV-98939 being statistically identical to ICCL-87315, ICCV-98936, ICCV-95138, ICCV-96020 and BARIchola 3 had the lowest pod damage (7.94%). Pod damage was the highest (33.60%) in ICC-4918. The pest susceptibility rating was the lowest (4) in ICCL-87315, ICCV-98936, ICCV-98939, ICCV-95138 and ICCV-96020. Of them, the line ICCV-95138 provided significantly the highest yield (1866 kg/ha) followed by ICCV-98939 (1700 kg/ha) and ICCV-96020 (1683 kg/ha). Yields of these three lines were higher than the released varieties. Lines ICCL-87315 and ICCV-98936 were poor yielder. The pest susceptibility rating was the highest (8) in ICC-4918 which also had the lowest yield (888 kg/ha). ICCV-95138, ICCV- 96020 and ICCV-98939 were the most promising lines in respect of pod borer resistance and yield potentiality. Of them, ICCV-95138 was the best line.