PERFORMANCE OF SORGHUM (GIRD) GERMPLASM FOR RESISTANCE TO SHOOT FLY (ATHERIGONA SOCCATA RONDANI) AND STEM BORER (CHILO PARTELLUS SWINHOE) SWINH

Abstract

The experiment was carried out during kharif 2013-14 at College of Agriculture, Indore, (M.P) to study the performance of Gird germplasm against resistance to shootfly(Atherigona soccata Rond.)and stem borer(Chilo partellus Swin.).Experiment was carried under two sets of protected and unprotected conditions of 48 gird genotypes with Randomized Block Design with two replications.At 21 DAE, lowest shoot fly dead heart damage was recorded in Gird-8,30(58.34%)(unprotected) and Gird-2 (46.84%) (protected) and at 28DAE least damage was in Gird-43(61.09%)(unprotected) and Gird-43(51.67%) (protected). Three types of observations, were recorded to measure the damage caused by stem borer viz. leaf injury percent, dead heart percent and stem tunneling percent(per plant basis). The leaf injury infestation at 30 DAE has been significantly reported in all genotypes but the lowest damage was in Gird-8 (7.77%) (Unprotected) and in Gird-37(5.38%) (protected). The stem borer dead heart was least in Gird-33(58.33%) and Gird-3(48.18%) under unprotected and protected conditions respectively. The stem tunneling under protected and unprotected conditions was lowest in Gird3(4.70%) and Gird-43(5.60%). The maximum yield was recorded per plot basis, Gird-8(0.26kg) followed by Gird-47 (0.23kg) under unprotected condition and 0.31kg (Gird-8) followed by Gird 47 (0.30kg) under protected condition. In overall, of all the screened germplasm Gird-8 showed moderate resistance to pest damage and was with highest yield under both protected and unprotected conditions.