Dr.M.H.SiddiquiLutharan Mahto2024-07-042024-07-041998https://krishikosh.egranth.ac.in/handle/1/5810211467Neem (Azadirachta indica A. Juss.) due to its many fold utilities (Insecticidal, pesticidal, medicinal, germicidal, fungicidal, bactericidal etc. properties) has got much scope in tribal belt of Chotanagpur region, but important hurdle is about selection of a provenance for this region. In Bihar, experiments on study of provenances on Neem hawa not been done and there is no recommendation for specific provenances for this region. Therefore, scientific study for the evaluation of three provenances of Neem has been under taken. For this, three provenances namely Giridih (Bihar), Ranchi (Bihar) and Pudukottai (T.N.) were taken and data were collected on seed characteristics such as seed length, seed width, Kernel length, Kernel width and seed weight. Seeds were also sown in nursery to study seed germination (%) and seed germinate energy (%). The different growth parameters like seedling height, collar diameter, root length, total length of the seedling, leaf number, leaf area and seedling biomass (above ground, below ground biomass and total biomass.) were measured on seedlings planted at three spacing (20cm X 20cm, 40cm X 40cm and 40cm X 80cm) in field at 7,9 and 11-months age. The initial data for these parameters were also measured 5 months age i.e., at the time of transplanting seedlings.EnglishThesis