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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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  • ThesisItemUnknown
    Documentation of some medicinal plants of Pithoragarh with emphasis on in vitro propagation and alkaloid estimation of Rauwolfia
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2006-08) Bhatt, Richa; Rao, P.B.
    Medicinal plants are the herbs with heading and curative properties bestow by ‘secondary plant metabolites’. In the present study collection, identification and catalogue description of some medicinal plants at and around Pithoragarh, and seed germination and in-vitro propagation including callus induction and direct regeneration in R. serpentina and alkaloid estimation in both R. serpentina and R. tetraphylla. Sixty different medicinal plant species were collected,identified and kept in the Deptt. of Biological Sciences, CBSH. These plants belonged to 54 genera and 34 families 29 Dicotyledones and 5 monocotyledones. The seed germination of R.S. was found to be very poor may be due to defective embryo formation, presence of endophytic flora or cinnamic acid in seed coat. Therefore an attempt was made through in vitro propagation, by induction of callus from leaf and stem tissues and direct regeneration from apical and nodal explants. Different combinations of phytohormones i.e., 2, 4 D + BAP and IBA + BAP were examined for callus induction and direct regeneration. It was observed that the combination and concentration of IBA (0.125 mg/L) + BAP (1.0 mg/L) produced for both callus induction and direct regeneration. Alkaloids are the active principle present in Rauwolfia and are being exploited in preparation of medicines. Isolation of alkaloids was performed from mature root, stem and leaves of both R. serpentina and R. tetraphylla. After isolation, it was purified and identified with the help of chromatographic techniques TLC and HPTLC. Maximum reserpine (0.38%) was recorded in roots of R. serpentina and in R. tetraphylla it was in the leaves (0.19%).
  • ThesisItemOpen Access
    Bioactivity of different species of bryophytes against certain plant pathogens
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-07) Mewari, Neelam; Chaturvedi, Preeti
    The harmful effect of insecticides and pesticides on human health and environment is well known. The widespread use of chemical pesticides in agriculture and public health leads to contamination of the ecosystem. Exposure to such pesticides creates an imbalance in the physiological functioning of the organisms. The World Health Organization (WHO) estimates today- in figures that are widely accepted to be underestimates – that 200,000 people are killed worldwide, every year, as a direct result of pesticide poisoning, up from 30,000 in 1990. In spite of their gradually increasing harmful effects on the environment and human health, there seems to be no possibility of their complete discontinuation. In this situation, the only way left is to reduce the use of toxic chemicals by adopting alternative methods of disease and pest control. One of the possibilities is the use of plant based natural products. Bioactive products of plant origin being less persistent in environment, safe to human and non-target organisms have therefore, become the focus of attention today. In the present study, four species of bryophytes (lower plants) - Entodon plicatus, Marchantia polymorpha, Plagiochasma appendiculatum and Rhynchostegium vagans have been investigated in vitro for their bioactivity against some important crop pathogens like Bipolaris sorokiniana, Fusarium moniliforme, F. solani, Rhizoctonia solani, Pseudomonas solanacearum and Xanthomonas oryzae. All the four species were found to possess antifungal activity against at least one of the test fungi. No antibacterial activity was found in any tested plant species viz., E. plicatus, P. appendiculatum, and R. vagans. Aqueous and organic extracts of M. polymorpha effectively inhibited R. solani while organic extracts of E. plicatus showed significant inhibitory activity against B. sorokiniana. P. appendiculatum and R. vagans inhibited both B. sorokiniana and F. solani. These findings indicate that these liliputians of plant kingdom have an immense potential as plant protectants and in near future, they can serve as new fungicide leads in agriculture.
  • ThesisItemUnknown
    Comparative microbial diversity in a forest and agroecosystem at sites-Chanda Devi and Sultan Nagari of district Nainital
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-08) Sharma, Shalini; Sharma, A.K.
    Soil microorganisms are one of the most prominent biological factors that affect ‘soil health’ and thus above ground productivity. Any change in their population can be used to predict changes in not only the soil but also the ecosystem. Thus an estimation of microbial count and activity can help us in gaining a better understanding of various ecosystems. The present study was undertaken to compare soil microbial diversity in a forest and an agroecosystem in the hilly areas of Kumaon. Both cultural and culture independent methods have been employed to study the microbial population. The experimental results revealed greater enzyme activity as well as greater total viable counts (TVC) in the agriculture ecosystems. These results indicate that the traditional agriculture or low input agriculture as practised in the hills allow the soil microbial community to flourish.
  • ThesisItemUnknown
    Allelopathic effect of five weed species on protein in different varieties of wheat (Triticum aestivum L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-08) Badhani, Richa; Rao, P.B.
    Allelopathy is the beneficial or harmful effects of one plant on another plant, both crop and weed species by the release of chemicals from plant parts by leaching, root exudation, volatilization, decomposition and other process in both agricultural and natural ecosystems. Weeds are the plants which are unwanted and interfere with the productivity and yield of cultivated crops. In present study, allelopathic effect of five dominant weed species i.e. Ageratum conyzoides L., Cyprus rotundus L., Phalaris minor L., Polygonum hydropiper L, and Solanum nigrum L. extracts were examined on seed germination, seedling growth (length and dry weight), total protein content and protein profile in ten different varieties of wheat (Triticum aestivum L.) and to identify resistant and susceptibile varieties i.e.,UP-2338,C-306,UP-299,PBW-373,UP-1109,PBW-343,UP-2382,UP-2113,PBW-175,PBW-396. The weed extracts exhibited both inhibitory as well as stimulatory effect on seed germination, plumule and radicle length and dry weight of total seedling in different varieties of wheat. On the basis of per cent reduction, the variety UP-2338 and PBW-396 (o) with P. minor were resistant and C-306 (68.96) with S. nigrum was susceptible. Similarly, UP-2338 (19.92) with S. nigrum was resistant and C-306 (94.34) with A.conyzoides was susceptible in radicle length: PBW- 396 (2.35) with P. minor and UP-299 (83.27) with S. nigrum in plumule length; UP-2338 (9.59) with C. rotundus and C-306 (94.25) with A. conyzoides in radicle dry weight, PBW-373 (0.25) with P. minor and PBW-343 (72.33) with P. hydropiper in plumule dry weight: UP-2113 (3.30) with C. rotundus and UP-1109 (81.18) with P. hydropiper in both seedling dry weight. Thus, these results indicate that the variety UP-2338 was most resistant compared to others. The total protein content was variable in all varieties in control and treatments. It was maximum in PBW-343 (7.8) with A. conyzoides and minimum in UP-1109 (1.3) with P. hydropiper. On the basis of total protein content variety C-306 and UP-299 were resistant and PBW-373 and UP-1109 were susceptible to most of the treatments. Results of similarity index indicate that the extracts of C. rotundus, P. minor and S. nigrum showed similar effect compared to other combinations.
  • ThesisItemOpen Access
    Effect of certain weed species extracts on protein profile in different varieties of french bean (Phaseolus vulgaris L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-07) Sarika; Rao, P.B.
    Allelopathy involves any direct or indirect harmful effect of one plant through release of chemical compounds on other. Allelopathic chemicals can also persist in soil, affecting both neighbouring plants as well as those planted in succession. Weeds are obnoxious, unwanted, ugly and persistent plants which are injurious for the crop, interfere with agricultural operations, increasing cost of labour and finally reducing the crop yield. Weeds utilize more nutrients and water than the crop plants. Weeds have allelopathic effect on crop and can result in complete crop failure. The present study deals with the allelopathic effect of four important weed species viz., Ageratum conyzoides L., Chenopodium album L., Cynodon dactylon (L.) Pers., and Parthenium hysterophorus L. on seed germination, seedling length and dry weight; total protein content and on protein profile in six different varieties i.e., Pant Anupama, Pant Bean-2, Contender, Arkakomal, HAFB-1 and HAFB-2 of french bean (Phaseolus vulgaris L.). The extracts of different weed species showed both positive and negative effect on different parameters (seed germination, seedling growth both in terms of length and dry weight; total protein content and protein profile) in different varieties of french bean. The maximum per cent reduction in seed germination was observed in HAFB-2 with extract of C. album, and minimum in Pant Anupama and Pant Bean-2 indicating that former one is highly susceptible variety and Pant Anupama and Pant Bean-2 were resistant. On the basis of per cent reduction in different parameters of seedlings of different varieties were classified into three categories namely resistant, susceptible and intermediate in response to different extracts of weeds, HAFB-2 was susceptible and HAFB-1 was resistant and rest of the varieties intermediate in terms of plumule length; Arkakomal was susceptible and HAFB-1 was resistant and intermediate in rest of the varieties in terms of radicle length; HAFB-1 was susceptible and HAFB-2 was resistant and intermediate in rest of the varieties in terms of plumule dry weight; Contender was susceptible and Arkakomal was resistant in terms of radicle dry weight; and Contender was susceptible and Pant Bean-2 was resistant in terms of total seedlings dry weight. Among different varieties of french bean, the extract of C. album showed maximum per cent reduction in both plumule and radicle both in terms of length and dry weight whereas the extract of C. dactylon showed positive effect. Due to the effect of allelochemicals, the total protein content increased on decreased in treated seedlings as compared to control. Among different varieties, in which the total protein content was increased was maximum in Pant Anupama (100%) and was minimum in Contender, Arkakomal and HAFB-1 (25%, each). The total number of bands present in different zones (A,B and C) were either increased or decreased or remain same when treated with different weed extracts compared to control. On the basis of above study, the variety Pant Anupama, Arkakomal, HAFB-1 and HAFB-2 were susceptible and Pant Bean-2 and Contender were resistant to different weed extracts. On the basis of presence or absence of protein bands present in both treatments with the control, similarity index is calculated and indicated that the effect of weed extract was more similar with C. album× c. dactylon (46.6%) in Pant Bean-2 and less similar in control × P. hysterophorus (18.5%) in Arkakomal.
  • ThesisItemOpen Access
    Bioactivity of certain selected composites on fungal pathogens
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-07) Bisht, Shefali; Rao, P.B.
    Mounting pressure of teeming population and shrinking land resources have necessitated the production of more food per unit area. Synthetic pesticides have played a major role in restricting pest problems and ensuring an increase in food grain production. However, the indiscriminate use of synthetic pesticides have created several problems of pest resistance, food contamination by toxic residuce (Subash Chander and Munshi, 1995) environmental pollution, pest resurgence and resistance (Schumtterer et al., 1990). Recently, the use of bioactive products of plants is being popularized to control the pests, as these are safer, cheaper and their crude extracts are quite easy to prepare. In the present study, an attempt is being made to screen five different members of family Compositae (Asteraceae) for their antifungal efficacy, by „Paper-Disc‟ agar method, in different organic solvents (methanol and acetone) and aqueous extracts at different concentrations (1000 g ml-1), and time intervals. The results obtained showed that the extracts of the selected composites inhibited the growth of one or the other fungus, in different extracts to certain degrees at different time intervals and concentrations except the aqueous extracts of Ageratum conyzoides and Tagetus erecta that has no effect on Fusarium oxysporum and Alternaria heterosporus respectively. Acetone extract of T. erecta was the most effective in inhibiting the growth of Alternaria heterosphorus, followed by the acetone extract of Cirsium arevensis and methanol extract of Parthenium hysterophorus. The methanol extract of A. conyzoides was the most active against Fusarium oxysporum. Rhizoctonia solani was most inhibited by the methanol extract of A. conyzoides, followed by acetone extract of C. arvensis. The acetone extract of A. conyzoides proved to be highly effective in inhibiting the growth of Sclerotium rolfsii followed by acetone extract of T. erecta. Thus, the above mentioned results clearly indicate that there is a vast potential in the botanicals to be used safely against pests.
  • ThesisItemOpen Access
    Effect of certain environmental factors on seed germination and seedling growth in four different medicinal plant species
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-07) Lajja Vati; Rao, P.B.
    Herbs have always been the principal form of medicine in India and presently they are becoming more popular throughout the developed world. From the ancient times, herbs have been used for pain relieving and health care needs. They have provided the entire medicament to man and domestic animals for a wide spectrum of ailments and to sooth his aches and pains. The present study deals with the effect of certain environmental factors i.e., light, water and temperature on seed germination and watering frequency and shade on seedling growth of four medicinal plant species viz., Andrographis paniculata (Burm.) ex Nees. Datura stramonium Linn. Psoralea corylifolia Linn., and Withania somnifera (L.) Dunal, the seeds were subjected to different stresses (water, temperature and light quality) and the results indicated that per cent seed germination decreased with increasing water stress. However, germination was absent in W. somnifera at high water stress (-15 bar). With increasing in temperature, seed germination was increased in all species and the maximum per cent seed germination was occurred in high temperature (30/35 0C). The maximum seed germination of all the species occurred in direct light in all the species except W. somnifera, in which it was in both direct light and red light. The seedlings of A. paniculata, D. stramonium, P. corylifolia and W. Somnifera were raised in polyethylene bags and subjected to different watering frequencies (daily, 7, 14 and 21 days intervals) and different light intensities (100%, 86%, 50% and 25% of full sun light) and continued upto four months. The observations (height, number of leaves and branches, root length, dry weight of leaves, stem, shoot, root and total seedling) were made with one month interval either direct measurement or by harvesting seedlings. The values of all parameters decreased with decreasing moisture in all the species i.e., from daily to 21 days watering intervals, except root length, in which it increased with decreasing moisture in all the species. The values of all parameters decreased with increasing light intensity in all the species except W. somnifera, in which the height, number of leaves and branches was decreased with decreasing light intensity (increasing shade level). The root length, showed poor growth with increasing shade in all the species. These results indicated that root length was highly affected by moisture and shade.