Studies on the interaction and management of fusarium wilt (Fusarium oxysporum f. sp. lycopersici) and root knot nematode (Meloidogyne incognita) in tomato
| dc.contributor.advisor | Saini, Anil Kumar | |
| dc.contributor.author | Sapna | |
| dc.date.accessioned | 2023-10-31T15:53:31Z | |
| dc.date.available | 2023-10-31T15:53:31Z | |
| dc.date.issued | 2023-06 | |
| dc.description.abstract | The devastating disease known as root knot nematode-Fusarium wilt disease complex is caused by the synergistic relationship of Fusarium oxysporum f. sp. lycopersici and Meloidogyne incognita on tomato plants. Due to the significant losses caused by these pathogens the present investigation aimed to develop effective management strategies that reduce the reliance on fungicides by focusing on the utilization of plant extracts, bioagents enriched with organic amendments to mitigate the risk of the disease. The study indicated that the severity of fusarium wilt increased when Meloidogyne incognita predisposed plants to Fusarium oxysporum f. sp. lycopersici which highlighting the importance of managing these pathogens effectively. The investigations on the interaction of both pathogens demonstrated that the presence of nematodes in the rhizosphere heightened severity of fusarium wilt disease. Based on the management practices implemented it was observed that neem cake among the organic amendments, Trichoderma harzianum among the bioagents, seedling dip with a 20% concentration of neem leaf extract was most promising in reducing the severity of the fusarium wilt and also enhanced antioxidant factors such as peroxidase and polyphenoloxidase. The study implied that the combination of Trichoderma harzianum enriched with neem cake results lower infection rate and a reduced area under the disease progress curve (AUDPC) compared to the control inoculated with the pathogens. Additionally, treatment exhibited higher chlorophyll content and increased photosynthetic rate results enhance plant health and promote photosynthetic activity in tomato plants affected by the fusarium wilt disease complex. | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810199991 | |
| dc.language.iso | English | |
| dc.pages | 74+vii | |
| dc.publisher | CCSHAU, Hisar | |
| dc.sub | Plant Pathology | |
| dc.theme | Studies on the interaction and management of fusarium wilt (Fusarium oxysporum f.sp. lycopersici) and root knot nematode (Meloidogyne incognita) in tomato | |
| dc.these.type | M.Sc | |
| dc.title | Studies on the interaction and management of fusarium wilt (Fusarium oxysporum f. sp. lycopersici) and root knot nematode (Meloidogyne incognita) in tomato | |
| dc.type | Thesis |