Vol. 11, Issue 8 (2022)

Author(s):
Aradhana Singh Paikra, Ashulata Kaushal, Tarun Pradhan and Nisha Thakur

Abstract:
Field experiment to study the effect of different plant defence inducers on percentage reduction of foliar diseases namely Alternaria blight and powdery mildew in linseed crop was conducted, during the year 2020-21, using T397 linseed variety at College of Agriculture, Raipur. Among the ten different treatments including a positive check for powdery mildew T9 (foliar spray of hexaconazole (0.1%), maximum percentage reduction of Alternaria blight over control was observed in treatment T7-Seed treatment with SA at 50 ppm + foliar spray of salicylic acid at 50 ppm (i.e. 24.45%) which remained at par with T4-seed treatment with SA at 100 ppm + foliar spray of SA (100ppm) with 17.81% reduction over control. T9-foliar spray of hexaconazole (0.1%) recorded highest reduction in powdery mildew (65%) disease which was at par with the treatments T1- seed treatment with SA(50ppm) and T8- seed treatment with SA+ foliar spray of sodium propionate (1%) with percentage reduction over control (35% and 31.67%) respectively. While, minimum percentage reduction over control (6.67%) was observed in the treatment T6-seed treatment with SA+ foliar spray of monopotassium phosphate (1%). Maximum test weight (24.50 g of 1000 seeds) was recorded in treatment T1-seed treatment with SA (50ppm).