Management of spot blotch disease of wheat in Eastern Uttar Pradesh

Abstract

Spot blotch caused by Bipolaris sorokiniana (Sacc.) Shoem is one of the most important wheat leaf disease all over world; it appears in almost all wheat growing areas and causes severe yield loss every year. The spot blotch disease caused by Bipolaris sorokiniana (Sacc.) Shoem is one of the most important wheat leaf diseases all over world, it appears in almost all wheat growing areas and causes severe yield loss every year. For the management of spot blotch disease of wheat one bio-agent, one bio-enhancer and seven fungicides were used. Plant disease intensity decreased with the application of different treatment over untreated control. Minimum plant disease intensity was recorded (21.11 % first year and 20.68% second year) under T9 (Seed treatment with Raxil @ 2.5 gm/kg seed + 2 foliar sprays of propiconazole @ 0.1 %, first at boot leaf stage second after 20 days), Maximum plant disease intensity was recorded (72.37% first year and 73.68% second year) under T11 (Control), Which has highly significant compared to all the treatments. Maximum grain yield was recorded (38.26 q/ha and 38.47 q/ha first and second year) and maximum thousand seed weight was recorded (41.25g and 41.54g first and second year ) under T9 (Seed treatment with Raxil @ 2.5 gm/kg seed + 2 foliar sprays of propiconazole @ 0.1 %, first at boot leaf stage second after 20 days), Minimum grain yield was recorded (31.25q/ha and 31.04q/ha during the both year) and minimum thousand seed weight was recorded(35.58g and 35.47g during 2018-19 and 2019-20) under T11 (Control), Which has highly significant compared to all the treatments.