Loading...
Thumbnail Image

Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

Browse

Search Results

Now showing 1 - 9 of 13
  • ThesisItemOpen Access
    Cloning, characterization and functional validation of a novel stress responsive monodehydroascorbate reductase gene from Eleusine coracana
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-04) Negi, Bhawana; Arora, Sandeep
    Oxidative stress, a convergent point of various abiotic and biotic stresses, is a major threat for food security all over the world. Oxidative stress generated due to accumulation of excessive reactive oxygen species (ROS), leads to the oxidation of vital cellular biomolecules and to cell death in extreme circumstances. Plants have evolved an antioxidant defense system to detoxify ROS and maintain redox homeostasis. Ascorbic acid, a small water soluble antioxidant molecule, plays a crucial role in detoxification of excess ROS. A high reduced:oxidized ascorbate ratio in plants is required for adaptation of plants to environmental stresses. Reduced ascorbate pool is maintained in cells through efficient reduction of oxidized forms of ascorbate.The present study delineates the role of monodehydroascorbate reductase, one of the enzymes responsible for maintaining cellular reduced ascorbate pool, under environmental stresses. The expression of monodehydroascorbate reductase (EC 1.6.5.4), as quantified through real-time PCR, was found to increase under salinity, water deficit as well as ultra violet radiation stress. The qPCR expression profiling of Ecmdar under stress indicated that mdar is an early responsive gene. Monodehydroascorbate reductase gene (mdar) was then cloned from a drought tolerant variety of Eleusine coracana (PR202). For structural validation, the cloned Ecmdar gene was subjected to in-silico analysis and for functional validation the gene was over-expressed in Brassica juncea and Arabidopsis thaliana. Structural analysis indicated that the cloned Ecmdar gene comprises of a 1437bp CDS, encoding a 478 amino acid long polypeptide. The amino-acid sequence analysis suggested that the cloned EcMDAR is a membrane bound peroxisomal isoform. The active site analysis showed presence of conserved Tyr348residue having the catalytic activity in electron transfer mechanism. String based analysis of EcMDAR predicted that mdar is coexpressed with ascorbate peroxidase and PLANT-CARE analysis of Osmdar showed presence of light responsive elements in the promoter region. Functional analysis of the transgenic lines over-expressing Ecmdar, indicated thatthe transgenic plants have better stress tolerance potential, measured in terms of standard biochemical markers, than the wild type plants. The present results clearly indicate that Ecmdar can be used as a promising candidate for developing stress tolerant transgenic plants.
  • ThesisItemOpen Access
    Iron sulphide nanoparticle induced enhancement in growth and development of Brassica juncea (L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-06) Rawat, Madhu; Arora, Sandeep
  • ThesisItemOpen Access
    Physiological & biochemical responses of Withania somnifera under In vitro PEG induced drought
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2015-09) Sharma, Deepika; Shankhdhar, S.C.
  • ThesisItemOpen Access
    Elucidating the role of silicon solubilizer in growth dynamics, biotic and moisture stress tolerance in different genotypes of rice (Oryza sativa L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-08) Kandpal, Geeta; Shukla, Alok
  • ThesisItemOpen Access
    Physiological aspects of weed management and crop growth in rice under long term herbicide trial in rice-wheat cropping system
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2011-08) Pawanika; Guru, S.K.
    The present study was conducted in the Norman E Borlaug Crop Research Centre and the Department of Plant Physiology, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, with an objective to evaluate the physiological basis of weed management and growth physiology of rice crop under long-term herbicide trials in rice-wheat cropping system. The field experiments were conducted during rainy season of 2009 and 2010. The experiment was laid out in a split plot design with three replications with weed control methods in rice as main plots and weed control methods in previous crop wheat as subplot treatments. The treatments consisted of Weedy, Hand weeding, and the herbicides butachlor and anilofos applied at recommended doses and in previous crop wheat Weedy, Handweeding, Isoproturon, Isoproturon+tank mix 1% urea, Isoproturon+ tank mix .1% surfactant. Morpho-Physiological growth parameters as well as biochemical parameters and total dry matter production by rice were measured at different growth stages. Effect of weed management practices on weed seed bank and soil micro flora were also assessed. Both the herbicide treatments and hand weeding were found to be effective in controlling weeds over the unweeded control. Both butachlor and anilofos showed similar results in relation to suppression of weed density. It was found that, the first thirty to sixty days are critical during which weeds must be controlled to prevent yield losses. Among all the weed species, Leptochloa chinensis reported as a problematic weed. At all the growth stages, Physiological growth parameters were higher in hand weeding as compared to unweeded control. Both the herbicide treatments and hand weeding recorded significantly higher chlorophyll content and photosynthetic rate over the unweeded control but chlorophyll fluorescence was similar in all the treatments. There was non-significant difference among the weed management practices on fungal population but the bacterial population in soil was higher in the herbicide (butachlor and anilofos) treated plots as compared to hand weeding and weedy plots. Weed seed bank was affected by the weed management strategies adopted in the cropping system. Results of weed seed bank study showed that, total number of weed seeds were higher in hand weeding in combination with Iso. (0.75 kg/ha) + Surfactant (0.1%) during 2009 while in the year 2010, treatment combination weedy check in rice and hand weeding or Iso. (1 kg/ha) in wheat recorded highest weed seeds.
  • ThesisItemOpen Access
    Physiological study of mango (Mangifera indica L.) malformation in five states of northern India
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-07) Varsha Rani; Bains, Gurdeep
    Mango (Mangifera indica L.) is an important fruit crop of the tropical and subtropical regions of the world. It is major tropical fruit crop after citrus and banana. This crop is devastatingly afflicted by a disorder/disease known as mango malformation, the etiology of which is still unknown. This disease is virtually absent in the southern and western regions of the country. Due to its prevalence and destructive nature in Northern India, its study is being emphasized in northern part of the country. A survey was conducted and weather parameters were taken in five states of India namely Bihar, Jharkhand, Uttar Pradesh, Uttarakhand and Delhi. For these location climatic data pertaining to maximum and minimum temperature, RH and Wind speed were collected for a year i.e. 2016, in the months of February and March (Initiation of flowering period to flowering period). Severity of mango malformation in five varieties of mango namely Amrapali, Dushehri, Bombay Green, Langra and Chausa were calculated on the basis of average monthly values of minimum and maximum temperature, RH and wind speed. Favourable conditions were identified for incidence of mango malformation. The low temperature (maximum and minimum), moderate relative humidity and feeble wind favoured the occurrence of malformation in the buds and flowers. Several reactive oxygen species (ROS) are continuously produced in plants as by product of aerobic metabolism. Some are highly toxic and detoxified by various cellular enzymatic and non enzymatic mechanisms. ROS also function as signaling molecules in plants involved in regulating development and pathogen defense responses. Also oxidation of unsaturated fatty acids such as linolenic acids present in Plasma membrane leads to many different products, viz., alcohol, aldehydes and alkenes. Under stress condition Malondialdehyde is produced. Production of MDA serves as an index of lipid peroxidation. Peroxidation damage of the plasma membrane leads to leakage of cell contents, rapid desiccation and cell death. Intracellular membrane damage can affect respiratory activity in mitochondria cause pigment breakdown and loss of carbon fixing ability in chloroplast. In addition to this, plants have also developed a range of defense mechanism against various biotic and abiotic threats. They react to these stress factors by inducing physiological and biochemical changes in which accumulation of defense related compounds is one of them. The present study is therefore initiated to identify a correlation between accumulation of defense related compounds, antioxidant enzymes, other biochemical compounds and the extent of malformation incidence in mango varieties in five states of north India.
  • ThesisItemOpen Access
    Elucidating the role of Trichoderma harzianum and holy basil (Ocimum sanctum L.) leaf extract for drought tolerance in rice (Oryza sativa L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2016-07) Pandey, Veena; Shukla, Alok
  • ThesisItemOpen Access
    Physiological and biochemical characterization of isoproturon resistance in Phalaris minor and its management
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2015-12) Nitin Kumar; Guru, S.K.
    Phalaris minor Retz. is the most troublesome weed of wheat in India. Losses caused by P. minor range from 5 to 50 % but could go up to 80 % under heavy infestation. Isoproturon, a substituted urea herbicide was successfully controlling this weed for a long time till it developed resistance. In the present study, an attempt was made to study the mechanism of herbicide resistance in P. minor biotypes in the rice-wheat cropping system of Uttarakhand. Pot culture experiments were conducted in the Department of Plant Physiology, College of Basic Sciences & Humanities, G. B. Pant university of Agriculture & Technology, Pantnagar. The experiment was laid out in a completely randomized design with three replications. Seeds of Phalaris minor, collected from farmer’s field from 15 different locations in the tarai region were sown in pots and efficacy of isoproturon was assessed at 0.5, 1.0 and 2.0 kg/ha dose. It was found that P. minor from ten out of 15 sources were resistant to isoproturon. Further experiments were conducted to elucidate the mechanism of isoproturon resistance. Application of PBO, a mono-oxygenase inhibitor @ 2kg/ha sprayed along with isoproturon increased the efficacy of the herbicide. Different parameters such as biomass production and mortality (%) were estimated for all the treatments at different stages. Further for the management of resistant populations of P. minor, alternative herbicides with different modes of action were also evaluated. Among these herbicides clodifop @ recommended dose i.e. 60 g/ha completely controlled the resistant P. minor. Data on biochemical parameters such as H2O2 content, SOD activity, proline content, MDA, content, MSI and total chlorophyll were evaluated in P. Minor under different treatments. Total protein content and MSI were found to decrease with time after treatment. Level of these biochemical parameters were found higher in resistant biotypes than susceptible biotypes. Chlorophyll fluorescence was also decreased in P. minor for all the herbicide treatment.
  • ThesisItemOpen Access
    Physiological aspects of rice growth and development under integrated nutrient management
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-08) Neelam Pankaj; Bains, Gurdeep
    Rice (Oryza sativa L.) is the world’s most important food crop and primary food source for more than two third of the world’s population. More than 90 percent of world’s rice is grown and consumed in Asia. It accounts for 35 to 60 percent of the calories consumed by 3 billion Asians. Rice is planted on about 148 million hectares annually i.e. on 11 percent of the world’s cultivated area. Fertilizers are the most important input for transformation of Indian agriculture, but, excessive use of fertilizer has negative impact on productivity of rice and soil. Both macro- and micronutrients are essential for plant growth. Nitrogen, phosphorus, potassium and zinc are considered as primary nutrients for the plant and if a plant does not get enough of a particular nutrient it needs, the plant shows deficiency symptoms as they are directly involved in physiology of plant growth. Zn proved to be a better mode of fertilization for the crop at all levels of application, as it allowed a balanced nutrient blend in soil and reduced the crop damage. Hence, reduced susceptibility of plant to pests may be a reflection of differences in plant health, as mediated by soil fertility management through zinc. The application of essential plant nutrients particularly macro and micronutrients in optimum quantity and right proportion through correct methods and time of application is the key to increased and sustained crop production. In past few decades, uses of chemical fertilizers have widely spread throughout the world. It is observed that fields which receive heavy application of chemical fertilizers show a decline in productivity. This decline occurs even in irrigated paddy fields. Therefore, it is important to understand fertilizer use behavior in the country and role of factors influencing fertilizer consumption.