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ThesisItem Open Access EFFECT OF NITROGEN AND PLANT GROWTH RETARDANT ON PRODUCTIVITY OF WHEAT (Triticum aestivum L.)(Birsa Agricultural University, Ranchi, 2021) Kumar, Sanjay; Ali, Naiyar.Wheat (Triticum aestivum) is one of the most important staple food crops of India and occupies a notable position among the food grain crops not only in area and production but also in its versatility in adaptation to a wide range of agro-climatic conditions. India is second largest wheat growing country in the world after china. Globally, it is the leading source of vegetal protein in human food, having a protein content of about 13%, which is relatively high compared to other major cereals, but relatively low in protein quality for supplying essential amino acids. When eaten as the whole grain, wheat is a source of multiple nutrients and dietary fibre. A field experiment entitled “Effect of nitrogen and plant growth retardant on productivity of wheat (Triticum aestivum L.)” was conducted the Birsa Agricultural University Farm, Kanke, Ranchi during the Rabi season of 2019-20 with the main emphasis to study the effect of nitrogen and plant growth retardant on growth, yield attributes, nutrient uptake by wheat and economics of wheat. The experiment was laid out in a Randomized Block Design (RBD) with ten treatments replicated thrice with the variety, DBW187 (Karan Vandana). The treatment were - No fertilizer and PGR (Control), 50 % RDN + PK, 75 % RDN + PK, 100 % RDN + PK + Plant growth retardant (PGR) (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 125 % RDN + PK, 150 % RDN + PK, 125 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%)(T7), 150 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 150 % RDF + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 150 % RDF. Recommended dose of Fertilizer (RDF): 150:60:40 (NPK/ha), applied 1/3rd nitrogen, full phosphorus and potash as basal dose as per treatments and the remaining 2/3rd nitrogen as 1/3rd at first irrigation and 1/3rd at second irrigation. Soil was clay loam in texture and PH was 6.2, having low organic carbon (0.42) with medium in soil fertility. Results found that the application 150 % RDF + Chlormequat chloride (Lihocin @ 0.2 % + Tebuconazole (Folicur 430 SC) @ 0.1 % gave significantly higher grain yield (57.60q/ha) as compared to rest of the treatment under investigation. Application of 150 % RDF + Chlormequat chloride (Lihocin @ 0.2 % + Tebuconazole ( Folicur 430 SC) @ 0.1 % also gave significantly higher yield attributes, NPK uptake, protein content and net return as compared to no fertilizer no PGR , 50 % RDN + PK, 75 % RDN + PK and 100 % RDN + PK + Plant growth retardant (PGR) (Lihocin @ 0.2% + Folicur 430 @ 0.1%)125 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 150 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%) but at par the rest of the treatment. However higher B:C ratio was obtained due to 150 % RDN + PK which was at par 125% RDN + PK but significantly higher than rest of the treatment.ThesisItem Open Access GENERATION MEAN ANALYSIS FOR YIELD AND YIELD ATTRIBUTING TRAITS IN LINSEED (Linum usitatissimum L.)(Birsa Agricultural University, Ranchi, 2019) Kumar, Sanjay; Ram, SohanAn experiment was conducted at departmental research farm, BAU, Kanke, Ranchi and Zonal Research Station, Chianki during Rabi 2017-18 to investigate about variability, nature and magnitude of gene effects, their interactions, heterosis and inbreeding depression for twelve yield and yield attributing traits following five parameter model of generation mean analysis. Twenty five genotypes consisting of five parents, 6F1s, 6F2s, 6F3s, and two checks (T-397 and Parvati) were sown in randomized block design with three replications. The analysis of variance revealed highly significant differences among the treatments for all the characters under study at both the locations. The present investigation revealed high PCV and GCV at both the location for characters like, number of primary branches per plant, number of capsules per plant and seed yield per plant showing the presence of variability for the yield and yield attributing traits. At both the locations high heritability coupled with high genetic advance as percent of mean was seen for traits such as seed yield per plant, 1000-seed weight and oil content whereas, at Ranchi location technical height, plant height and number of capsules per plant and at Chianki location number of primary branches per plant exhibited locations high heritability coupled with high genetic advance as percent of mean indicating preponderance of additive gene action, therefore these traits might be useful in further breeding programme. With the help of scaling and joint scaling test presence or absence of epistasis and adequacy of additive-dominance model respectively were checked and accordingly five parameter model was followed for estimation of gene effect as well as presence of nonallelic interactions. Epistasis was observed in almost all the six crosses for the different traits studied. Duplicate epistasis was more prevalent than complementary epistasis at both the locations. Heterosis revealed that the crosses Himalsi-2 X Meera and Mukta X SLS-61 at Ranchi (L1) location and Himalsi-2 X SLS-61 at Chianki (L2) location were found to be the promising crosses because of its high yield, quality and disease resistance among the six crosses studied and thus could be utilized in future breeding programme.ThesisItem Open Access EFFECT OF INTESTINAL PARASITES ON REPRODUCTIVE PERFORMANCE OF EWES AND DOES(Birsa Agricultural University, Kanke, Ranchi, Jharkhand, 2007) Kumar, Sanjay; Singh, M.P.G.I. helminths infected ewes and does were kept almost parasite free for about 3 months using Albendazole alone or supplemented with mineral mixture. 2. The Hb (g/dl) level ranged from 8.83±0.08 to 8.96±0.03 in ewes before treatment. The value for does was 8.78±0.02 to 8.95±0.24. The level of Hb increased significantly (P<0.01) in both the treatment groups after treatment on day 20. 3. PCV (%) in ewes and does also followed the same trend which increased significantly (P<0.01) in both the treatment groups on day 20. Analysis of variance revealed significant effect of treatment on above haematological parameters after treatment in ewes. 4. In both the species of animals Hb (g/dl) level and PCV (%) increased significantly (P<0.01) in both the treatment groups on day 20 but the differences in levels were non significant between the treatment groups. 5. The Serum level of Ca, P, Cu and Zn in ewes increased significantly after treatment on day 20 in both the treatment groups, although they did not vary significantly among themselves except the level of Cu which was significantly (P<0.01) higher in Albendazole + Mineral mixture group than the Albendazole group in ewes. 6. In case of does also the serum level of Ca, P, Cu and Zn increased significantly after treatment on day 20 in comparison to control. The level of Cu was however, significantly (P<0.01) higher in Albendazole + Mineral mixture group than the Albendazole group and the level of Zn was higher in Albendazole group than Albendazole + Mineral mixture group. 7. The minimum interval from treatment to onset of estrus in does was recorded in Albendazole + Mineral mixture group (43 days) which was followed by Albendazole group (46 days) and control group (52 days). 8. In ewes the minimum interval (41 days) from treatment to onset of estrus was in Albendazole + Mineral mixture group followed by Albendazole group (44 days) and control group (55 days). 9. The average required number of services per conception in does were 1.33, 1.00 and 2.00 for Albendazole, Albendazole + Mineral mixture and control group, respectively. The corresponding values in ewes were 1.67, 1.17 and 2.17, respectively. 10. The pregnancy rates in the three groups were 66.66, 83.33 and 33.33%, respectively in case of does. The corresponding values in ewes were 50.00, 66.66 and 33.36%, respectively. The Albendazole along with Mineral mixture can be administered to the parasitised sheep and goats to improve their reproductive performances.ThesisItem Open Access Phosphorus Management In Rice-Wheat Cropping System(Birsa Agricultural University;Ranchi, 2000) Kumar, Sanjay; Singh, R. S.
