Interaction Between Fusarium oxysporum f.sp. Lycopersici and Meloidogyne incognita In Tomato
| dc.contributor.advisor | S. Lingaraju | |
| dc.contributor.author | Wahdatullah Khpalwak | |
| dc.date.accessioned | 2016-11-14T16:33:46Z | |
| dc.date.available | 2016-11-14T16:33:46Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | Tomato is an important warm season vegetable crop of the world as well as India and Karnataka State. Among the nematode diseases, root knot caused by Meloidogyne incognita is a major constraint limiting the commercial production of the crop in many parts of the world including India, because it interacts with a vascular wilt fungus Fusarium oxysporum f. sp. lycopersici leading to augmentation of wilt disease severity. Against this background, the present investigation was undertaken. In interaction studies, nematode inoculation 7 days prior to fungus inoculation caused high disease with highest number of galls per root system, while there was no significant difference in wilting percentage and number of galls between nematode inoculation 14 days prior to fungus inoculation and inoculation of both the pathogens simultaneously. But either fungus or nematode-alone inoculation or fungus preceding nematode inoculation by 7 or 14 days, recorded lowest wilting percentage and number of galls per root system. Studies on reaction of tomato genotypes/lines in a disease complex scenario (comprising Fusarium oxysporum f.sp. lycopersici and Meloidogyne incognita) showed that six, out of twenty eight cultivars/lines, viz. Pusa Ruby, DMT-1, DMT-4, L-2, L-15 and V-47 recorded highly susceptible to disease complex. Only three cultivars namely L-5, L-18 and IMP-B showed moderately resistant reaction against only Meloidogyne incognita, remaining rest of the cultivars were with moderately susceptible reaction. In an effort to find out seed treatment-based management options to manage the disease complex seeds treated with Paecilomyces lilacinus significantly decreased per cent wilt incidence followed by Pseudomonas sp. strain-50 and chemical carbosulfan. But with respect to reduction in number of galls, Calotropis latex was most effective followed by Pseudomonas sp. strain-50 and Neem seed kernel powder. In general, Pseudomonas sp. strain-50 was superior in managing wilt complex disease. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/85481 | |
| dc.publisher | UAS, Dharwad | en_US |
| dc.research.problem | Interaction Between Fusarium oxysporum f.sp. Lycopersici and Meloidogyne incognita In Tomato | en_US |
| dc.sub | Plant Pathology | en_US |
| dc.theme | Interaction Between Fusarium oxysporum f.sp. Lycopersici and Meloidogyne incognita In Tomato | en_US |
| dc.these.type | M.Sc | |
| dc.title | Interaction Between Fusarium oxysporum f.sp. Lycopersici and Meloidogyne incognita In Tomato | en_US |
| dc.type | Thesis | en_US |