EPIDEMIOLOGY AND MANAGEMENT OF FIG RUST CAUSED BY Cerotelium fici (Cast.) Arth.
| dc.contributor.advisor | Y. S., MAHESH | |
| dc.contributor.author | A., ANUSHA | |
| dc.contributor.other | MESTA, R. K. | |
| dc.contributor.other | M. P., BASAVARAJAPPA | |
| dc.contributor.other | PATIL, S. N. | |
| dc.contributor.other | A. G., BABU | |
| dc.date.accessioned | 2020-10-29T05:22:04Z | |
| dc.date.available | 2020-10-29T05:22:04Z | |
| dc.date.issued | 2018-09 | |
| dc.description.abstract | The present research work on “Epidemiology and management of fig rust caused by Cerotelium fici (Cast.) Arth.” was carried out at Department of Plant Pathology, College of Horticulture, Bagalkot and in vivo studies at Fruit orchard, UHS, Bagalkot and Horticulture Research and Extension Centre, Vijayapura (Tidagundi) during 2017-2018. The symptoms of fig rust was more pronounced on the leaves as brownish angular spots on the adaxial surface and uredosori on the corresponding abaxial surface of the leaf. The severity of the disease leads to the defoliation. The survey carried out in the three districts of Northern Karnataka revealed that the highest Percent Disease Index (PDI) was recorded in Ballary (66.93) and lowest in Bagalkot district (51.46). The in vitro studies on uredospore germination revealed that, 2.5 per cent sucrose, 25˚ C temperature and 100 per cent relative humidity favoured the maximum germination of uredospores. Among the weather parameters correlated, morning relative humidity (%) and minimum temperature (˚C) had maximum influence on the disease development. In vivo screening of varieties viz., Ballary, Conadriya, Dienna, Dinakar, Excel and Poona showed that none of the varieties were found to be resistant to rust disease. The results of analysis of bio chemical parameters showed that total sugars, reducing sugars, non reducing sugars, total protein and total phenol content in the leaves were increased due to the infection, whereas the chlorophyll content was decreased. The wax content, a pre existing defense component was highest in the upper leaves which were immune to the disease. In vitro efficacy of fungicides, biorationals and bioagents indicated that fungicides viz., propiconazole, carbendazim, difenconazole, tebuconazole, mancozeb and trifloxystrobin+tebuconazole were found highly effective in inhibiting the uredospore germination. Out of the different biorationals tested neem oil, safflower oil, amrut pani, ginger rhizome extract, coconut oil and garlic bulb extract effectively inhibited the uredospore germination. Among the bioagents viz., Bacillus. subtilis, Pseudomonas. fluoroscens and Lecanicillium lecanii, completely inhibited the uredospore germination. In vivo (field) evaluation studies indicated that among biorationals, ginger rhizome extract @ 15% was more effective in reducing the rust disease followed by neem oil @ 5% and garlic bulb extract @ 15%. Among the different fungicides tested, tebuconazole at 0.1 % propiconazole at 0.1 % and mancozeb at 0.25 % were recorded the least PDI of 31.85, 35.06, 35.56 and highest BC ratio of 1:3.94, 1:3.80, 1:3.47 respectively. | en_US |
| dc.identifier.issn | UHS16PGM767 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810153926 | |
| dc.keywords | FIG, T420 | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 198 | en_US |
| dc.publisher | University of Horticultural Sciences, Bagalkot | en_US |
| dc.research.problem | Thesis | en_US |
| dc.sub | Plant Pathology | en_US |
| dc.theme | EPIDEMIOLOGY AND MANAGEMENT OF FIG RUST CAUSED BY Cerotelium fici (Cast.) Arth. | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | EPIDEMIOLOGY AND MANAGEMENT OF FIG RUST CAUSED BY Cerotelium fici (Cast.) Arth. | en_US |
| dc.type | Thesis | en_US |