Studies on Fusarium Wilt of Lentil (Lens Culinaris Medic ) in Chotanagpur Plateau Region of Bihar
| dc.contributor.advisor | D. K. Jha | |
| dc.contributor.author | D. K. Jha | |
| dc.date.accessioned | 2024-06-13T11:18:55Z | |
| dc.date.available | 2024-06-13T11:18:55Z | |
| dc.date.issued | 1994 | |
| dc.description.abstract | Wilt of lentil (Lens culinaris Medic) caused by Fusarium oxysporum f. sp. lentis is present in almost all the lentil growing areas of Chotanagpur region of Bihar which varied between 5.2 to 37.6 per cent. The pathogen is mainly soil-borne and attack the plants at any stage of its growth. The disease development was faster and more in injured root than in the uninjured one. Koch's postulate tests were also satisfied in the present finding. The fungus produces three types of spores viz; micro & macro-conidia as also chlamydospores in culture. Macroconidia were rarely found on the upper surface of the wilted plants. However, it was quite prevalent in the inner side of the tissues. In cultural studies, Richards' medium proved to be the best, both in solid and liquid states, for the excellent growth and sporulation of the pathogen. The optimum pH recorded to be 5.3 for its growth and 5.3 to 6.3 for sporulation. The fungus could utilize all the carbon compounds tried but Mannitol proved to be the best. Out of 48 varieties/lines screened, three varieties Viz; BR 25, Pant. L- 234 and Pant. L - 639 were found to be the immune to wilt disease in plateau region of Bihar.. Thiram + Bavistin proved to be the most suitable fungicides which completely controlled the growth of pathogen in vitro and increased the germination of seeds in vivo. It was also effective in suppressing the mortality percentage of lentil plants. Organic amendments with wheat straw, with or without addition of inorganic nitrogen were effective in controlling the disease. Effect of natural soils and fresh cattle manures were found to be effective in wilt disease of lentil plant | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810210423 | |
| dc.language.iso | English | |
| dc.pages | 125 | |
| dc.publisher | Birsa Agricultural University, Ranchi | |
| dc.sub | Plant Pathology | |
| dc.theme | Studies on Fusarium Wilt of Lentil (Lens Culinaris Medic ) in Chotanagpur Plateau Region of Bihar | |
| dc.these.type | M.Sc | |
| dc.title | Studies on Fusarium Wilt of Lentil (Lens Culinaris Medic ) in Chotanagpur Plateau Region of Bihar | |
| dc.type | Thesis |