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STUDIES ON ANTHRACNOSE OF MANGO CAUSED BY Colletotrichum gloeosporioides(Penz.) Penz. and Sacc. IN NORTHERN PARTS OF KARNATAKA
| Content Provider | KrishiKosh-Indian National Agricultural Research System |
|---|---|
| Advisor | Kulkarni, M. S. |
| Researcher | Tadahal, Kavita B. Tadahal |
| Abstract | Mango (Mangifera indica Linn.) is an important fruit crop in India and other tropical and subtropical countries of the world. Among fungal diseases the mostimportant one is anthracnose caused by Colletotrichum gloeosporioides Penz. and Sacc. (teleomorph Glomerella cingulata). The pathogens were isolated from infected leaves of mango collected from Dharwad and Belgaum district of Karnataka. Incidence of disease during rabi in 2011- 2012, the highest incidence in Dharwad district was noticed in Dummavad of Kalagatagi taluk and lowest was noticed in Gudageri. Studies on C. gloeosporioides include isolation, identification and proving pathogenicity test. Mature conidia were usually hyaline, oval to oblong with rounded tips, non septate and had one to two oil globules. Cultural studies revealed that among solid media, maximum radial growth was observed on potato dextrose agar medium and malt extract agar were found to be good for radial growth and sporulation of Colletotrichum gloeosporioides and among the liquid media richards’s broth and potato dextrose broth supported maximum dry mycelial weight of Colletotrichum gloeosporioides on 12th day of incubation. Studies on host range, turmeric showed moderate symptoms on leaves. Screening of mango cultivars for resistance against C. gloeosporioides, none of these were found to be immune and resistant but the cultivars Alphonso, Dashehari showed moderately resistant reaction against the disease. Under in vitro evaluation of botanicals, that neem seed kernel extract (10 and 15%) was found to be effective against C. gloeosporioides and Among the fungicides tested, carbendazim was found to be cent per cent effective at all three concentration (0.05, 0.1 and 0.2%). Among in vivo evaluation of fungicides, carbendazim was a superior at 0.2% and found to be a least per cent disease index. |
| Page Count | 84 |
| File Size | 1934662 |
| File Format | |
| Language | English |
| Publisher | UNIVERSITY OF HORTICULTURAL SCIENCES |
| Publisher Place | Bagalkot |
| Access Restriction | Open |
| Subject Keyword | Mango Anthracnose of Mango Colletotrichum Gloeosporioides Mango In Northern Parts of Karnataka Studies On Anthracnose of Mango Caused By Colletotrichum Gloeosporioides(penz.) Penz. and Sacc. In Northern Parts of Karnataka Plant Pathology |
| Content Type | Text |
| Educational Degree | Master of Science (M.Sc.) |
| Resource Type | Thesis |
