MANAGEMENT OF FOOT AND ROOT ROT DISEASE OF LENTIL ( Lens culinaris)

Abstract

Experiments were carried out at the central farm and Laboratory of the Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka-1207, during the period from December 2017 to March 2018 to investigate the effect of different management options on the foot and root rot disease of lentil. The field experiment was conducted with RCB design with nine treatment and three replications. nine treatments were comprised of two chemicals viz. Autostin 50 WP and Indofil M-45, one biofungicide Trichoderma harzianum, one botanical fungicide Allamanda extract, A soil

amendment

by poultry manure and one control. The chemical fungicides, plant extracts, bioagent spore solution were applied as seed treatment as well as spraying at the basal part (root zone) of the plant. Data were collected at different days after sowing. Results showed that the yield and yield contributing characters as well as growth parameters had been significantly affected by different treatments applied. Among different management options the treatment comprising seed dressing with Indofil M-45 and field spraying with Autostin 50 WP gave the best results regarding the number of pods/ plant, plant height, 1000 seed weight/ plot and seed yield/ plot followed by Trichoderma harzianum spore solution. The height percentage of disease incidence has been recorded in case of control and showed the maximum amount of yield loss. The treatment where the lentil seed were treated with Autostin 50 WP (0.4%) followed by field application with Autostin 50 WP (0.2%) at 7 DAS gave the promising performance showing upto 56% higher effect of lentil.