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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.

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  • ThesisItemOpen Access
    Effect of low light stress on growth, yield and grain quality of rice (Oryza sativa L.)
    (G. B. Pant University of Agriculture & Technology, Pantnagar-263145, 2023-02-01) Rajni; Shankhdhar, S. C.
    Rice (Oryza sativa L.) is one of the most important cereal crop for humans, consumed by more than half of the world's population. Asian countries produce 89 percent of the world's rice with China and India alone accounting for 55 percent of total production. Different environmental factors such as temperature, sunshine, rainfall, drought, salt and flooding have an impact on grain yield and biomass. Among these factors temperature, light and rainfall have an immediate impact on the physiological processes involved in grain production and yield. The first important component of light is light intensity which affects plant growth and development. Lower light intensity affects rice growth and development by influencing physiological traits biochemical parameters. For Effect of low light stress on growth, yield, and grain quality of rice( Oryza Sativa L. ) a field experiment was conducted in Norman E. Bourlog crop research center, G. B. Pant University of Agriculture and Technology, Pantnagar during kharif season 2022 with different rice genotypes, namely, LL-01, LL-02, LL-03, LL-04, LL-05, LL-06, LL-07, LL-08 and LL-09.These genotypes were transplanted in two blocks, one for control and another block for imposing low light stress by covering the block with 50 % shade net supported by bamboo sticks. Both the entry ends were open for sufficient ventilation. A number of parameters such as plant height, leaf area, chlorophyll, photosynthetic rate, intercellular CO2 concentration, protein, carbohydrate, Proline content , grain yield, and total dry matter, stem weight, panicle number, stomatal conductance, transpiration rate, were recorded in different rice genotypes and it was found that except plant height and chlorophyll content, thousand grain weight all the parameters reduced significantly under low light stress. The genotypic variations in these characteristics were also found. Some genotypes showed tolerance for low light stress and some were found to be susceptible. Finally the grain yield, harvest index, number of filled grain spikelet no per panicle indicated that low light stress adversely affected these parameters. The low light stress tolerant genotypes performed better in terms of filled grain numbers and spikelet no per panicle, harvest index as compared to susceptible genotypes. In present study, , LL-04 ,LL-06 and LL-09 was reported to be more adaptable and LL-02 and LL-05 were found to be sensitive for low light stress.
  • ThesisItemOpen Access
    Physio-biochemical attributes and nutritional quality assessment of basmati rice (oryza sativa l.) under organic, inorganic and integrated production system
    (G. B. Pant University of Agriculture and Technology, Pantnagar, 2022-09) Rautela, Sheela; Bains, Gurdeep
    Basmati is considered as unique varietal group of rice (Oryza sativa L.) because of its aroma and superior grain quality. Pant Basmati I is high yielding Basmati rice grown in tarai region of India. India is the largest producer as well as exporter of Basmati rice across globe and its contribution is significant in country’s GDP. Organically grown Basmati rice has a significant worldwide demand because of better nutritional quality than other conventionally grown Basmati rice. The present investigation was carried out at organic block of Norman E. Borlaug, Crop Research Centre, GB Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during 2019 and 2020 for physiobiochemical attributes and nutritional quality assessment of Basmati rice under organic, inorganic and integrated production system. The production systems contain 6 different treatments, two each (T1: Farm Yard Manure (FYM) @10tha-1 + Vermicompost(VC) 5 t ha-1 + Green Manure (GM) at 55 days; T2: 50% through organic sources (FYM + VC + GM at 40 days) + (seed/seedling treatment with Beejamrit (BJ) ) + Ghanjeevamrit (GJV) @250 kg ha-1 + Jeevamrit (JV) @500L ha-1/time; T3: (50% FYM+VC+50% RDF) T4: (25% FYM+VC+25%RDF+50%BJ+GJV+JV); T5: Recommended doses of NPK (120:60:40) kg ha-1 ; T6: (RDF + FYM 5t ha-1 ). On comparing the growth and physiological parameters viz. plant height, total dry matter, crop growth rate, relative growth rate, leaf area index and chlorophyll fluorescence under different treatments it was found that T3 integrated production system showed maximum values than inorganic and organic production systems. The biochemical parameters like nitrate reductase activity, chlorophyll a, chlorophyll b, total chlorophyll, carotenoid content was higher in T3 integrated system than organic and inorganic systems. However, the antioxidant enzymes activities and non enzymatic antioxidant viz. phenolics and flavonoids content was higher under organic (T1 followed by T2) than inorganic and integrated systems. Nutritional quality parameters such as starch, carbohydrate, amylose, micronutrient (Mn, Cu, Fe, Zn), ascorbic acid and phytic acid content were more positively affected by organic system (T1 and T2) than the inorganic and integrated systems. The yield and yield attributes were maximum under integrated nutrient system T3 than organic and inorganic production systems.
  • ThesisItemOpen Access
    Efficacy of salicylic acid to improve physiological and biochemical attributes of brahmi (bacopa monnieri l.) under water deficit conditions
    (G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-09) Shamiya Jahan; Shankhdhar, Deepti
    A pot experiment was conducted in the department of plant physiology, GBPUA&T, Pantnagar, to study the “Efficacy of salicylic acid to improve physiological and biochemical attributes of Brahmi (Bacopa monnieri L.) under water deficit conditions” during two successive years 2021-22. The SA was applied as foliar spray with varied conc. (0, 25, 50, 75, 100, 125, 150 mg/l) under different water levels; (i) well watered (once a day) , (ii) water deficit A (twice a week) and (iii) water deficit B (once a week). The growth and physio-biochemical attributes recorded after 7 days from second SA spray (culmination of both first and second foliar spray) on Bacopa plant. During investigation observed that both water deficit conditions A & B significantly decline the growth (i.e. number of shoots, leaves and shoot length) and yield attributes (fresh and dry herbage yield) than control. Maximum increment was recorded for stress indicators such as electrolyte leakage, MDA, H2O2, conversely minimum increase reveled after SA application with 75 mg/l concentration in comparison to control. In addition photosynthesis associated parameters such as photosynthesis rate, stomatal conductance, intercellular CO2, transpiration rate and photosynthetic pigments (Chl a, b and total chl) was lowered under both water deficit levels, but 75 mg/l concentration of SA application help to recovered these attributes than control. Minimum amount of total protein and leaf water potential was also measured under water deficit. SA application (75 mg/l conc.) enhanced plant resilience toward water deficit through increase the enzymatic antioxidants (SOD, CAT, APOX, and GPOX), non enzymatic antioxidants (ascorbic acid, flavonoid, phenolic and carotenoid) osmolytes (proline and total soluble sugar) and also improve all parameters along with well watered plants. The bacoside-A content was increased after SA (75 mg/l conc.) under water deficit B over control. Additionally, SA and PEG (for water deficit) elicitation were analyses in in-vitro culture of Bacopa to assesses their responses under control environment. The tissue culture study was revealed better effect of SA individually to enhanced the growth, while with PEG combination not efficient.
  • ThesisItemOpen Access
    An assessment of the physiological, biochemical and morphological traits conferring tolerance to heat stress in rice (Oryza sativa L.)
    (G. B. Pant University of Agriculture and Technology, Pantnagar, 2022-08) Reddy, Gajji Aravinda; Shankhdhar, S.C.
    In the global food chain, rice is a staple crop that provides the majority of the world's population with all of their energy needs. During crucial growth stages like flowering and seed development, it is extremely sensitive to environmental conditions including temperature, light, drought, etc. High temperatures have the potential to permanently harm rice grain quality, yield, and plant functions. A study was conducted at the N. E. Borlaug Crop Research Center in Pantnagar during the kharif season of 2021 to determine the effects of high temperature stress on morpho-physiological and biochemical parameters, as well as to examine the yield characteristics of various rice genotypes under heat stress. Different rice genotypes received heat treatment during blooming by creating a polythene tunnel in one block that retains heat and leaving the other block open as a control. It has openings on both ends for adequate ventilation. Only 10 genotypes—29173(R), CO-51, IET 29939, IET 29940, IET 29947, IET 29948, IET 29952, IET 29958, and IET 29960—out of 25 genotypes were chosen for further study based on their sensitivity to high temperatures and yield characteristics. Parameters regarding the physiological, biochemical and morphological characters are recorded during the investigation. It was found that stem weight during flowering, shoot weight during maturity TDM at flowering and maturity, stomatal conductance, transpiration rate, panicle dry weight during flowering and maturity, grain yield, protein, amylose and carbohydrate content was reduced during heat stress conditions. It was found that plant height at flowering, effective tiller number, LAI, leaf dry weight at flowering, photosynthetic rate, intercellular CO2 concentration, grain number and spikelet number per m2, spikelet fertility, harvest index and chlorophyll content were increase/decrease in some genotypes. When the parameters are correlated with grain yield, they are found to be positively correlated and significant except one that is shoot weight at maturity it is found to be non-significant. Different genotypes from diverse backgrounds showed varied results since, out of 10 genotypes, IET 29958 and IET 29947 was found to be tolerant while IET 29942 and 29173(R) were sensitive to high temperature in the present investigation.
  • ThesisItemOpen Access
    Physiological aspects of enhancing grain zinc content and its bioavailability in winter wheat (Triticum aestivum L.) through foliar application of zinc
    (G. B. Pant University of Agriculture and Technology, Pantnagar, 2022-06) Mishra, Sudershan; Guru, S.K.
    Zinc deficiency stems from dietary malnutrition. Wheat grains are inherently low in zinc concentration as well as bioavailability primarily on account of being cultivated in soils with poor zinc phyto-availability. Wheat-based products account for provisioning of 50% daily dietary zinc intake. Therefore, there is a need to biofortify the wheat grains with Zn. The present investigation was carried out to study the physiological aspects of enhancing grain zinc content and its bioavailability in wheat cultivar PBW 343. The field investigation was carried out in two successive winter seasons (2018-19 and 2019-20) at the Dr N. E. Borlaug Crop Research Center, Pantnagar, India. A pot culture experiment was also carried out to study the effect of chelators on grain zinc and its bioavailability. Five different concentrations of zinc 0, 567.5, 1135, 1702.5 and 2270 ppm zinc were used in the field study which were sprayed at three different stages viz. 30, 45 and 60DAE. Two different Zn concentrations 1135ppm Zn and 1702.5ppm Zn along with three chelators 0.025% Methionine, 0.02% Histidine and 0.1% Citric acid were used in the pot culture experiment. The results show that Zn application had promoting effect on growth, yield and yield related attributes. It also increased chlorophyll content as well as zinc associated enzyme activities in the flag leaf. The maximum increase in grain yield was recorded at 1702.5ppm of Zn. Under the field conditions, three sprays of 2270ppm Zn resulted in maximum grain zinc content of 24.1 mg/kg (28.19% increase over control). Use of chelators along with zinc in the pot culture experiment revealed that while addition of methionine further increased the grain yield, using histidine as a chelator increased the grain zinc content upto 27.71 mg/kg). Application of Zn increased total available zinc (TAZ; mmol/day) and maximum TAZ of 1.95mmol/day was observed with three sprays of 2270ppm of Zn. Addition of histidine as chelator further increased TAZ to a maximum of 3.7mmol/day.
  • ThesisItemOpen Access
    Influence of silicon solubilizer on drought tolerance at flowering in Rice (Oryza sativa L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-07) Myint, Thi Thi; Shankhdhar, S.C.
    One of the most significant field crops in the world, after wheat, is rice (Orzya sativa L.), which provides millions of people with a stable diet. The needs for food will inevitably increases as the population grows and the climate changes. In addition, climate change has increased the frequency and intensity of a number of abiotic as well as biotic stresses, which has let to considerable losses in important grain species like rice. A field experiment was laid out in split-plot design during the Kharif season of 2020 and 2021 in triplicates with four treatments viz., T1: Control, T2: Si supplemented, T3: Si+Drought stress and T4: Drought stress. Eight genotypes, including 27P63, HRI-174, DRR Dhan-48, IIRRH0143, IIRRH-148, US-312, US-314 and SAHABHAGIDHAN, were examined for a variety of morphological, biochemical and yield characteristics. Analyses of biotic stress incidence and estimations of nutrient content were also performed. Various growth attributes were recorded namely plant height, tiller number, leaf number, LAI, leaf weight, culm weight, TDM at active tillering, panicle initiation and flowering stage. In addition, yield attributes panicle number, spikelet number, spikelet fertility, grain number, test weight and harvest index were found to enhance. Physio-biochemical parameters including MSI, RWC, Chlorophyll content, Gas exchange measurement, carbohydrate, amylose, protein content and SOD activity showed a positive response on application of silicon. A decrease in proline and MDA content was observed. Additionally, there was an increase in the intake of nutrient. It was discovered that silicon had a positive impact on the growth, development, and yield under both normal and drought conditions. For sustainable rice production under climate change conditions, silicon soulubilzer treatment might be utilized to decrease the effects of drought.
  • ThesisItemOpen Access
    Elucidating the effect of potassium silicate and salicylic acid on morphological, physiological and biochemical aspects of mango (Mangifera indica L.) malformation
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2022-01) Yadav, Ritika; Bains, Gurdeep
    Malformation is a one of the most threatening malady of mango (Mangifera indica L.) and responsible for great economic loss in mango growing regions. Present investigation was carried out at Horticulture Research Centre, Patharchatta and Department of Plant Physiology, College of Basic Sciences & Humanities, GBPUA&T, Pantnagar, to study the effect of foliar application of potassium silicate (KSi) and salicylic acid (SA) on malformation in two mango cultivars Amrapali (moderately susceptible) and Dashehari (moderately resistant) during the year 2018 and 2019. The experimental design was factorial randomized block design (RBD) with three replications. Nine different concentrations of potassium silicate and salicylic acid {0% (water spray), 0.25% KSi, 0.50% KSi, 1% KSi, 2% KSi, 5% KSi, 0.25% SA, 0.50% SA and 0.75% SA)} were sprayed at three different stages i.e., prior to panicle emergence, pre bloom and full bloom in the month of February to March. The effect of KSi and SA on malformation was evaluated with respect to morphological, physiological and biochemical characters. Fusarium was isolated from malformed floral tissues and characterized on the basis of purple orange colour on potato dextrose agar (PDA) media. It was observed that potassium silicate and salicylic acid treatment significantly reduces mycelial growth of Fusarium. It was also reported that foliar application of KSi and SA significantly reduces the occurrence of floral malformation as compared to control. Panicle length, flowering percentage, physiological and biochemical characteristics viz. chlorophyll fluorescence, chlorophyll content, total phenol, and total protein content significantly increased under 1% KSi followed by 0.50% SA treatments with respect to control. 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. Under stress condition MDA is produced and it serves as an index of lipid peroxidation. SA and KSi treatments significantly decreased the MDA content while proline content, SOD, ascorbate peroxidase, catalase, glutathione reductase and guaiacol peroxidase activity increases in dose dependent manner. Overall findings of the present investigation suggested that pre-treatment of potassium silicate or salicylic acid at both 1% KSi and 0.50% SA could help in maintaining vital physiological and biochemical processes and induces defence response either by eliminating the active oxygen species, inhibiting the infection of Fusarium in host tissue and strengthening plant defence mechanism.
  • ThesisItemOpen Access
    Effect of tillage and nutrient management on growth, yield and physiology of wheat (Triticum aestivum L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2022-01) Namaste Kumari; Bains, Gurdeep
    Wheat is a crop of nutritional and economic importance and hence the increase in wheat production has to match the increase in world population in order to guarantee global nutritional security over the coming years. Increased reliance on intensive agricultural practices have resulted in low Nutrient Use Efficiency (NUE), environmental pollution due to residual fertilizers and decreased productivity. Agronomic and physiological interventions such as mechanical manipulation of soil via different tillage systems and specificnutrient management practices are few of the approaches to increase the production in a sustainable manner. To analyze the effect of different tillage and nutrient management systems on growth, yield and physiology of wheat crops, the present field study was carried out at NEB, CRC, Pantnagar, during Rabi season of 2020-21 using wheat variety WH-1105. Six different tillage practices (ZT, CT, CC, PB, PR and RT) and three different nutrient management practices (GSBNM, SSNM and RDF) were the main plot and subplot treatments respectively. The lab experiments were carried out in the Department of Plant Physiology. Parameters such as plant height, number of tillers, LAI, shoot: root ratio, chlorophyll content, NR activity, root length, average root diameter, number of root tips, root volume, root surface area, root length density, root surface area density, root volume density, grain yield, straw yield, biological yield and harvest index were studied. A decrease of 21%, 20% and 20% in grain yield, straw yield and biological yield respectively was observed under PR as compared to CC. Grain yield, straw yield and biological yield under RT and CT were found at par with CC. A significant increase in crop growth and yield was observed under recommended dose of fertilizer application across all the tillage practices. The reduction in grain yield, straw yield and biological yield under SSNM and GSBNM was 7-13%, 11-23% and 10-18% respectively as compared to RDF. No other nutrient management practices were found at par with RDF for grain yield, straw yield and biological yield. Therefore, it can be concluded that RDF application under CC, CT and RT produced good yield and can be recommended after checking the reproducibility of results. However, GSBNM and SSNM can be adopted in order to increase the nutrient use efficiency of crops and hence further study is suggested.
  • ThesisItemOpen Access
    Morpho-physiological and biochemical characterization of wheat varieties (Triticum aestivum L.) sown at differential time intervals
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-09) Chandra, Tanvi; Shankhdhar, Deepti
    Wheat (Triticum aestivum L.), a major staple food resource for the world’s population. In present scenario climate changes and elevated temperatures are the big issues that limit its production. An inappropriate timing or delay in sowing is also responsible for sudden elevation in air temperatures during sensitive growth stages of wheat life cycle. Being a winter crop, variability in climates is one of the biggest environmental threats to Indian wheat. The present investigation was carried out to evaluate the effect of elevated temperatures due to variation in sowing timings (November and December) on morpho-physiological and biochemical parameters of 8 varieties of wheat namely; UP2628, HD3086, UP2967, UP2784, UP2526, UP2565, UP2748 and HD3059, conducted during the two consecutive years of Rabi season 2018-19 and 2019-20 in Pantnagar (tarai region). A delay of 30 days in sowing, results elevation in air temperatures; 3.7ºC at tillering, 1.9ºC at heading, 3.7ºC at anthesis and 2.9ºC at grain filling. The morphological, physiological and biochemical parameters, yield and yield related attributes, days taken to complete developmental stages were significantly reduced under December sown wheat varieties as compared to November sown wheat varieties. 3rd internodal distance was found affected by elevated temperatures as compared to 1st and 2nd. On comparing between sensitive growth stages; thermo tolerant traits such as relative water content, membrane stability index, chlorophyll fluorescence, canopy temperatures, chlorophyll pigments and NR activity was significantly decreased during grain filling stage as compared to anthesis. While antioxidants and proline content were found increased as the varieties moves towards grain filling. Quality parameters, carbohydrates, starch and amylopectin were found negatively affected by elevated temperatures while grain nitrogen, storage proteins, amylose content, amylose to amylopectin ratio was positively influenced in December sown wheat varieties. Positive and significant correlation between grain yield and other parameters was found in wheat varieties sown in November while under December sown, relations between the grain yield and other parameters were significantly changed except the correlations among physiological traits, in which non-significant difference was observed between two sowing months.