Screening the seeds of different chickpea genotypes against pulse beetle C. chinensis L. in laboratory condition.

Abstract

This study was conducted to evaluate the resistance/ tolerance of 15 chickpea cultivars viz., BDNG 797, VIKRAM, BDNG 804, BDNG 801, PG 805-17-5, AKG 1303 JAKI 9218, BDNG 2010-1, PG 13107, AKG 1109, SAKI 9516, PG 0819-43, AKG 1401, ICCV 3137 and ICCV 86111 against pulse beetle. Chickpea genotypes/ varieties viz. ICCV 86111, AKG 1303, PG 805-17-5, BDNG 801 and Vikram were found least preferred against C. chinensis in which lowest numbers of eggs laid by pulse beetle, least adult emergence, developmental periods and seed infestation and weight loss. Based on ovipositional preference, significantly lowest number of eggs (16.67 eggs / 100 seeds) were laid on variety ICCV - 86111 which was found at par with the genotypes AKG – 1303 (17.00 eggs / 100 seeds) followed by PG-805-17-5 (17.33eggs/100seeds) and Vikram (18.33 eggs/ 100 seeds). The significantly highest per cent adult emergence was recorded in ICCV-3137 (82.33 per cent) followed by Jaki -9218 (81.00 per cent), Saki -9516 (80.00%), PG 13107 (78.33 per cent), AKG 1401 (76.67 per cent), BDNG 804 (76.67 per cent) and BDNG 2010-1 (76.67 per cent) which was found at par with each other. On an average the shortest beetle completed its developmental period was found significantly 27.50 days in ICCV 86111 which was at par with PG-805-17-5 (27.51 days) followed by AKG-1303 (27.65days), Vikram (28.09 days) and BDNG 797 (28.76 days), respectively. The variety ICCV 3137, SAKI 9516 and BDNG 804 was most susceptible on the basis of above parameter.