Vol. 12, Issue 8 (2023)

The present research has been done at Department of Millets, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, and India with an objective to select resistant progeny in BC2F1 population against Sorghum Downy Mildew (SDM) caused by Peronoclesropora sorghi. It is an important disease in maize producing regions worldwide and limiting the maize production in many Asian countries. Hence, it is essential to produce a new variety or hybrid which is resistant to Downey mildew in maize to increase the yield. To achieve this objective, the present research was taken in artificial infection under spreader row technique to pick out the resistant progeny from back cross population. The result of present screening technique revealed that among the ten progenies studied, five progenies derived from UMI 79/936 of BC2F1 population such as Progeny number 3 (consists of 80 plants), Progeny number 7 (consists of 122 plants), Progeny number 29 (consists of 110 plants), Progeny number 67 (consists of 118 plants) and Progeny number 101 (consists of 78 plants) were found as resistant.