Browsing by Author "Singh, Mahendra"
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ThesisItem Open Access Agro-pedological investigations on soils of Rania block, District Sirsa, Haryana(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 1981) Singh, Daljit; Singh, MahendraThesisItem Open Access Association of plasma leptin and IGF-I levels and their SNPs with milk plasminogen in low and high producing cows.(NDRI, Karnal, 2017) Dar, Mohammad Rayees; Singh, MahendraThesisItem Open Access Availability of Mn in Sadic soil(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 1994) Soni, Moti Lal; Singh, MahendraThesisItem Open Access Availability of Zinc in Soil and Plant(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 1983) Singh, Bharat; Singh, MahendraThesisItem Open Access Blood leucocyte and somatic cell count in milk during lactation in goats(NDRI, Karnal, 1997) Das, Mainak; Singh, MahendraThesisItem Open Access Dynamics of Nitrogenous fertilizers in Soil Plant System(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 1998) Yadav, Dhan Singh; Singh, MahendraThesisItem Open Access Ecophysiological studies on earthworm in relation to conversion of soil nutrients(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 1986) Mohan lit; Singh, MahendraThesisItem Open Access Effcacy of Quizalofop-p-ethyl against weeds in Soybean [Glycine max (L.) Merrill.](JNKVV, Jabalpur, 2009) Singh, Mahendra; Kewat, M. L.ThesisItem Open Access Effect of bromocryptine on plasma prolactin, nefa and yield and composition of milk in buffaloes during early lactation(NDRI, Karnal, 1997) Saha, Ashis; Singh, MahendraThesisItem Open Access EFFECT OF DIETARY VITAMIN D3 SUPPLEMENTATION ON PLASMA HORMONES, MINERALS AND MILK PRODUCTION IN BOVINES(2019) HUSSAIN, NASIR; Singh, MahendraPresent investigation was carried out to find out the effect of vitamin D3 on milk production, circulatory hormones and plasma minerals in Murrah buffaloes. Twelve lactating healthy buffaloes were selected for the experiment and was divided as control and treatment group. All the buffaloes were maintained and fed as per the routine practices followed in the farm. The treatment group buffaloes received vitamin D3 dietary supplementation @ 20,000IU/day from 32-122 days of early lactation. Daily milk yield was recorded during experimental period from both the groups. Blood samples were collected at fortnightly interval and was analysed for plasma vitaminD3, PTH, Osteocalcin and IgG level. Milk production was significantly increased by vitamin D3 feeding in the treatment group (p<0.01) in comparison to control group. Milk yield increased by 1.99 kg/day in vitamin D3 supplemented buffaloes over the control group. Plasma vitamin D3 level and Osteocalcin levels were higher in the treatment group of buffaloes (p< 0.01) in comparison to control group. However plasma PTH level decreased significantly (p<0.01) in the treatment buffaloes. Plasma IgG level was significantly higher (p<0.01) in treatment group buffaloes as compared to control group buffaloes. Milk yield was positively correlated to circulatory vitamin D3 (p<0.01) and Osteocalcin (p<0.05) and was negatively correlated with PTH (p<0.01). Plasma Calcium concentration were significantly higher (p<0.01) in the treatment group of buffaloes as compared to control, however plasma Phosphorus were not influenced by treatment during experiment. Plasma Magnesium level were increased significantly (p<0.01) in the treatment group concomitant to increase in Calcium level as compared to control group of buffaloes. Plasma Calcium, Phosphorus and Magnesium level was non-significant during autumn and winter season in Tharparkar (TP), Sahiwal (SW) and Karan Fries (KF) cows. However, milk yield varied (p<0.05). It was concluded that vitamin D3 supplementation improved milk production and persistency of lactation due to increase in plasma vitamin D3 and Osteocalcin level in Murrah buffaloes. Supplementation also improves immunity of animals as indicated by positive impact of treatment on animal health.ThesisItem Open Access Effect of exogenous oxytocin administration on somatic cell count in milk of buffaloes(NDRI, Karnal, 2000) Prasad, Jyotsna; Singh, MahendraThesisItem Open Access Effect of laser irradiation on seed germination parameters and phosphorus uptake in maize (Zea mays L.) plants(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-07) Singh, Mahendra; Singh, K.P.The effect of laser irradiation on seed germination, plant parameters (shoot, root lengths, plants heights, vigour indices and leaves' sizes) and phosphorus uptake has been studied in two varieties (Surya and Pragati) of maize (Zea mays L.). The seeds were irradiated for different period of times i.e. 0s (control), 60s, 120s, 180s and 240s by 632.8 nm He-Ne Laser beam. Seeds were grown in petridishes and pots. Results suggested that the 60s irradiated seeds showed the best germination percentage, plant parameter and phosphorus uptake. The higher irradiation caused negative effects on these parameters. These results also suggested that the effect of irradiation was greater in the Pragati variety (V2). The results have been understood in terms of the changes in two morphological forms of phytochromes and the phytohormones as a results of laser irradiation of the seeds.ThesisItem Open Access Effect of manures, fertilizers and micronutrients on nodulation, growth and yield of soybean (Glycine max l. Merril)(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-09) Singh, Mahendra; Narendra KumarTwo field experiments were conducted at the Crop Research Centre of GBPUA&T, Pantnagar during kharif 2006 and kharif 2007 to study the response of soybean (Glycine max. L. Merrill) to manures, inorganic fertilizers and micronutrients on nodulation, growth and yield on variety PS- 1347. In first experiment, addition of FYM @10 t ha-1 significantly increased nodule number and their dry weight per plant over 100% NPK at 60 and 90 DAS in 2006 with numerical increases in 2007. Application of FYM @ 5 t ha-1 along with V W @10% gave significantly more nodule number per plant than FYM @ 10 t ha-1 at 60 DAS in both years. However, the maximum nodule number were recorded with the application of FYM @ 5 t ha-1 + VC @ 2.5 t ha-1 + VW@ 10% + 50% NPK, (18.33, 49 and 37.66 in 2006 and 33.66, 53.0 and 35.66 in 2007 plant-1, respectively) at all growth stages in both the years. This treatment also gave maximum nodule and plant dry weight in both the years. Treatment having FYM @ 5 t ha-1 + VC @ 2.5 t ha-1 + VW@ 10% + 50% NPK showed numerically more N and P uptake by plant than all treatments in 2006. But in 2007 this treatment significantly increased P uptake by plant than all treatments except V W @ 10% and FYM @ 5 t ha-1 + VC @2.5 t ha-1. This treatment also gave numerical more N and P content both in plant and grain over 100% NPK in both the years. All the treatments except FYM @ 5 t ha-1 + VW @ 10% significantly increased microbial biomass C at 50% flowering stage and at harvest in 2006. Similarly, VC @ 2.5 t ha-1+ VW @10%, FYM @ 5 t ha-1 + VC @2.5 t ha-1+ VW @10% and FYM @ 5 t ha-1 + VC @2.5 t ha-1+ VW @10% treatments significantly increased microbial biomass C as compared with 100% NPK at 50% flowering stage in 2007. FYM @ 5 t ha-1 + VC @2.5 t ha-1+ VW @10% + 50% NPK gave highest PSB number in soil at 50% flowering (39.66 × 105 and 32 × 105 CFU g-1 soil) and at harvesting stage of soybean (30.33 × 105 and 28 ×105 CFU g-1 soil) in both years. This treatment also produced maximum grain yield (3209.87 and 3230.88 kg ha-1 respectively,) in both years. In II experiment, the application of B. japonicum + 7 + 8 + 9 gave maximum, nodule number (20.33, 51.00 and 35.66 nodules plant-1 in 2006 and 37.66, 80.00 and 38.66 nodules plant-1 in 2007, respectively). Treatment having B. japonicum + Zn @ 5 kg ha-1 significantly increased nodule dry weight (mg plant-1) over control, B. japonicum alone and local strain at all growth stages except 60 and 90 DAS in 2007. This treatment also significantly increased plant dry weight than control and B. japonicum alone inoculation in 2006. Maximum plant dry weight (4.33, 23.61 and 44.23:, 4.26, 67.33 and 38.23 g plant-1, respectively), highest N and P uptake (103.15 and 32.52: 98.13 and 30.45 Kg ha-1, respectively) by plant and maximum grain yield (3117.2 and 2462.0 kg ha-1) were recorded by the application of B. japonicum + 7 + 8 + 9. Application of different treatments did not affect soil pH, OC (%) and EC (dSm-1) significantly after harvest of crop over control in both years.ThesisItem Open Access Effect of some Organic Nitrogen Sources on in vitro Regeneration in mungbean (Vigna Radiata L. Wilczek)(College of Agriculture Chaudhary Charan Singh Haryana Agricultural University Hisar, 1999) Jain, Monika; Singh, MahendraThesisItem Open Access Energy Balance, Plasma Hormones and Metabolites in Prilled Fat fed Murrah Buffaloes During Transition Period.(NDRI, Karnal, 2016) Sharma, Shikha; Singh, MahendraThesisItem Open Access Evaluation Of Livestock Production And Feeding Practices With New Nutritional Technological Approaches Under Mixed Farming System In Kumaon Hills Of Uttaranchal(Govind Ballabh Pant University of Agriculture and Technology;Pantnagar, 2002) Singh, Parasu Ram; Singh, MahendraThesisItem Open Access Evaluation of medium duration indica rice hybrids(JNKVV, Jabalpur, 2005) Singh, Mahendra; Dubey, R. K.ThesisItem Open Access Evaluation of Vesicular Arbuscular Mycorrhizal (VAM) fungi on bioavailability of Zn in direct seeded rice (Oryza sativa L.)(Department of Soil Science & Agricultural Chemistry, BAU, Sabour, 2016-08) Kumar, Ranjeet; Singh, MahendraAM fungi plays very important role in the increase the root surface area and uptake of some macro and micronutrients. In direct seeded rice (DSR), the plant availability of micronutrients like Zn is likely to be less. Considering facts, a pot experiment was conducted in the Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour on “Evaluation of vesicular arbuscular mycorrhizal (VAM) fungi on bioavailability of Zn in direct Seeded rice (Oryza sativa L.)”. Four AM fungi species were evaluated under zinc deficient soil in completely randomized design (CRD) with three replications. Among all the AM fungi species, plant height was found maximum under the treatment T3 (Glomus mosseae + 100% RDF NK). The root dry weight was maximum (3.12 g) in treatment T3 (Glomus mosseae + 100% RDF NK), which was observed significantly higher when compared with other treatments. Maximum AM colonization and spore count was observed at panicle initiation stage with the application of same treatment. The higher microbial populations were recorded at panicle initiation stage with application of treatment T3 (Glomus mosseae + 100% RDF NK). This treatment also gave maximum dehydrogenase activity (55.86 µg TPF g-1 24 hr-1), acid phosphatase activity (0.299 mg PNP g-1 hr-1) and alkaline phosphatase activity (0.54 mg PNP g-1 hr-1) followed by application of treatment T6 (Gigaspora decipien + 100% RDF NK) at panicle initiation stage. Application of treatment T3 (Glomus mosseae + 100% RDF NK) significantly increased DTPA extractable Zn in soil and Zn content in plant when compared with all the treatments but found at par with the application of treatment T6 (Gigaspora decipien + 100% RDF NK). The maximum zinc uptake (0.056 mg pot-1) by grain was recorded under treatment T3 (Glomus mosseae + 100% RDF NK) followed by application of treatment T6 (Gigaspora decipien + 100% RDF NK). Highest grain yield (14.08 g pot¬-1) was found with the treatment T3 (Glomus mosseae + 100% RDF NK) among all AM fungi species and it was at par with the treatment T2 (100% RDF). As evident from the results, among all the AM fungi species Glomus mosseae sp. can effectively modify the soil microbe population and community structure by increasing the soil enzymatic activities and significantly increased the zinc uptake by grain in DSR rice, when compared with other applied AM fungi species.
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