Browsing by Author "Satish Kumar T"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
ThesisItem Open Access Studies on pearl millet ergot caused by claviceps fusiformis (Loveless)(Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, 2022-11-30) Satish Kumar T; Jagtap, G.P.The present study entitled “Studies on pearl milletergot caused by Claviceps fusiformis (Loveless.)”was carried out in 2021with the objective to do a survey and collection followed by isolation and identification of Claviceps fusiformis, to prove pathogenicity of C.fusiformis causing ergot of pearl millet, to evaluate the in-vitro efficacy of different fungicides, botanicals and bioagents against C. fusiformis, to integrate the most effective fungicides, botanicals and bioagents for the management of ergot of pearl millet (Pot culture). The highlights of the findings are given below. A roving survey was conducted in the Aurangabad district of six different villagesviz.,Andhari, Verul, Waregaon, Karmad, NARP ResearchStation and Bidkin duringKharif2021-2022 for recording the severity of ergot on Pearl millet. A naturally infected pearl millet panicles were collected from farmers’ fields. For subsequent studies out of eighteen samples ten isolates were obtained by using PDA media.The test pathogen was determined based on pathogenicity test, cultural, morphological, molecular and microscopic observations. Among all the fungicides like systemic fungicide (500 ppm) Propiconazole 25% EC, non-systemic fungicide (750 ppm) Captan50%WP and combi fungicide (1000 ppm) Tebuconazole 50% +Trifloxystrobin 25%recorded significantly highest average inhibition of mycelialgrowth ( 92.06%), (74.88%), and (84.58%) respectively with least of the mycelialgrowth each (7.14 mm), (22.60 mm) and (13.87mm) of the test pathogen. Among bioagents tested, T. asperellum (59.73%) was found effective followed by T. harzianum (57.51%). Rest of the bioagents tested also caused significant mycelial growth inhibition of the test pathogen over control. All the eight botanicals tested were found effective against C. fusiformis. However, significantly highest average mycelial growth inhibition was recorded with Neem (41.29%) followed by Onion (39.13%) and Garlic (39.03%). Efficient fungicides, bioagents and botanicals were selected and studied in pot culture.Seed treatment with Trichoderma asperellum (1%) + Two sprays of Tebuconozole +Trifloxistrobin 75 % WG @ 0.1 % - 96.77 %, Seed treatment with Trichoderma asperellum (1%)+ Two sprays of Captan 50 % WP @ 0.075 % - 96.55 % and Seed treatment with Trichoderma asperellum (1%) + Two sprays of Propiconozole 25% EC @ 0.05% - 94.58% were found effective to control ergot disease.