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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
    Studies on insect pollination in mango and potential of repellents to reduce pesticidal hazards to domesticated bee pollinators
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-05) Usha; Srivastava, Poonam
    Studies on the impact of insect pollination in mango with different objectives like pollinators fauna, foraging activity, mode of pollination and influence of bee repellent for enhancing the quality and quantity of mango fruits were carried out at Horticulture Research Centre, Patharchatta, G.B.P.U.A.&T., Pantnagar during the year 2011 and 2012. The major insect pollinators found visiting on mango inflorescences were Episyrphus balteatus DeGeer, Melanostoma orientale We., Syrphus corollae Fab., Eristalis tenax L.(Diptera : Syrphidae) Apis dorsata Fab., A. mellifera L., A. cerana indica Fab., Tetragonula laeviceps, Xylocopa aestuans L., Musca domestica L., Musca. sp., Eupeodes sp., Calliphora sp. and Chrysomya sp. The activity of foragers were started in the month of march with initiation of flowering with a peak of 22.64 syrphid flies/panicle/5min, 20.54 A. mellifera, 7.84 A. dorsata, 2.98 A. c. indica and 3.84 non apis bees on 15th march, 2013. However, the maximum foraging activity of pollinators was recorded in morning hours at 10.00AM with 20.34 syrphid flies/panicle/5min, 21.81 A. mellifera/panicle/5min., 9.66 A. dorsata/panicle/5min, 9.28 A. c. indica/panicle/5min and 4.16 non apis bees/panicle/5min. visiting on mango flowers. Maximum number of A. mellifera was recorded on mango trees at 25 m distance away from the hive (20.33 bees/m2/10min) at 1200-1300 hr, while minimum (6.26 bee/m2/10min) at 175 m distance at 1500-1600 hr. The syrphid flies were found to forage maximum number of flowers (17.82 flowers/syrphid flies/5 min) from 0900-1100 hr. Whereas, A. mellifera spent maximum time 14.98 Sec./flower at 0900-1100 hr. Various modes of pollination had a significant effect on the quality and quantity of mango fruits. Highest fruit setting (2.12 per cent) and yield (22.26 kg/tree) were recorded in the treatment T3 (open pollination) followed by the treatment T1 (A. mellifera boxes) with 18.20 and T4 (Tetragonula laeviceps boxes) with 18.12 kg/tree, respectively. However, qualitative parameters viz. size of the fruit, TSS, Dry matter per cent, Ash content and Moisture per cent of mango fruits were higher in bee pollinated trees. Highest efficiency was observed in Cheed oil, Devdar oil, Camphur oil, Dhoop oil, Patcholi oil, Mustard oil and Van tulsi oil as bee repellent where none of the bee visited on the surface treated with these oils.
  • ThesisItemOpen Access
    Bioefficacy of some newer insecticides against major insect pests of tomato and their ecology
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-08) Selvaraj, S.; Bisht, R.S.
    The present investigation was carried out during 2011-12 and 2012-13 at Vegetable Research Centre, G.B. Pant University of Agriculture and Technology, Pantnagar situated in Tarai region of Uttarakhand. A total of ten species of insect pest belonging to four categories viz., Defoliators (3 species), sap suckers (5 species), miner (1 species) and borer (1 species)have been observed to attack tomato crop. The order Hemiptera occupied the largest number of species contributing about 34.21% of the total pest followed by Lepidoptera (28.95%), Diptera (14.47%), Coleoptera (7.89%), Orthoptera (6.58%), others (5.26%) and Thysanoptera (2.63%). Among the various insect pests of tomato, Helicoverpa armigera, Liriomyza trifolii, and Bemisia tabaci have been reported to be major insect pests. The incidence of H. armigera on tomato during the cropping season 2011-12 and 2012-13 revealed that the pest marked its first appearance in 7th and 9th standard meteorological week (SMW), attain peak population in 16th and 15th SMW, respectively. Whereas, first appearance of leaf miner at 9thand 8th SMW, attain peak population in 14th and 17th SMW, respectively. The life history of tomato fruit borer studied in laboratory revealed that female laid 180 to 260 eggs and 410 to 450 eggs during her life span on natural and synthetic diets, respectively. The incubation period, duration of different instars, pupal period and adult longevity have been observed to be 3-5 days, 20-25 days, 10-12 days and 5-6 days, respectively on natural diet whereas, 3-5 days, 25-28 days, 11-14 days and 7-9 days, respectively on semi synthetic diet. During both the cropping season, the treatment chlorantraniliprole 4.3% + abamectin 1.7% SC at 30 g ai/ha has been found most effective insecticides against the population of H. armigera, L. trifolii and B. tabaci followed by chlorantraniliprole 4.3% + abamectin 1.7% SC at 60 g ai/ha. Minimum per cent fruit damage (5.25 and 4.71%) and maximum fruit yield (28.89 and 31.24 t/ha) was also recorded with chlorantraniliprole 4.3% + abamectin 1.7% SC at 30 g a.i/ha during both the cropping seasons 2011-12 and 2012-13, respectively. However, chlorantraniliprole 4.3% + abamectin 1.7% SC at 24 and 30 g ai/ha appeared to be the safest treatment for existing natural enemy population.
  • ThesisItemOpen Access
    Population dynamics of insect pests and pollinators associated with Litchi chinensis Sonn.
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-06) Joshi, Sanjay Kumar; Singh, C.P.
    The leaf infestation pattern as well as population dynamics of five different foliage feeders (Statherotis leucaspis Meyrick, Dudua aprobola Meyrick, Acrocercops cramerella Snellen, Popillia japonica Newman and Weevils) was observed in litchi crop at Horticulture Research Centre Pattharchatta during 2011-013. The incidence of all insect pests once in a year except in leaf roller where it was twice in a year. The incidence of all the pests was maximum in East direction and minimum incidence was recorded in North direction. The population as well as leaf infestation was minimum in high density orchard (1.0 × 0.5 Metre). Low density orchard (8.0 × 8.0 Metre) was preferred for maximum infestation by all pests. The abiotic factors (Temperature and Relative humidity) had significant impact on pest incidence. Rainfall was a limiting factor for all the insect pests. The relative abundance of different insect pollinators during the flowering season was found maximum in the end of March in East direction. The maximum abundance of Apis mellifera (3.1 and 4.2 foragers/inflorescence/3minute), Apis dorsata (1.4 and 0.8 foragers/inflorescence/3minute) and Syrphid flies (10.4 and 0.9 foragers/inflorescence/3minute) was recorded at 1100 hours during the year 2011 and 2012 respectively. The maximum abundance of Trigona laeviceps Smith and Coccinella septempunctata was in the evening hours (1400 and 1700 hours). The surrounding environment of inflorescence had more impact on the relative abundance of pollinators than the open environment of location.
  • ThesisItemOpen Access
    Seasonal incidence and screening of soybean cultivars and efficacy of chlorantraniliprole 18.5 SC against major insect pests
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-07) Mathur, Vaibhav; Bisht, R.S.
    The present investigation was carried out during kharif 2011 and 2012 at Norman E. Borlaug Crop Research Centre, G.B. pant University of Agriculture and Technology, Pantnagar situated in Tarai region of Uttarakhand. The study incorporates the results on the pest complex, relative abundance and seasonal incidence of insect pest of soybean and screening of some germplasm against major insect pests of soybean. Besides, the efficacy of a newer insecticide, chlorantraniliprole 18.5 SC (Coragen) was also tested against the soybean defoliators viz., Spilarctia obliqua, Spodoptera litura and Thysanoplusia orichalcea and the borer, Riptortus linearis. Considering the pest complex of soybean in the present study the order Hemiptera occupied the largest number of species constituting about 37% of the total pest, followed by Lepidoptera (25%), Coleoptera (25%), Diptera (6%), Orthoptera (2%) and others (5%). A total of seventeen insect pests were found to attack soybean crop belonging to three categories viz., defoliators (7 species), sap sucker (8 species) and borer (2 species). Among the various insect pest of soybean, Melangromyza sojae (borer) has been reported to be most predominant followed by Bemisia tabaci (sap sucking). Out of 43 cultivars screened against 7 major insect pests of soybean the cultivars JS-20-34 and AMS-MB-5-18 were identified to be resistant and AMS-MB-5-18, CSB-08-09, CSB-08-08, RKS-63, JS-20-29, DSb-20, MACS-1281, JS(SH)2003-8, SL-794 and MACS- 1140 were identified as the moderately susceptible (MS) against defoliator pests. CSB-08-09 was observed to be resistant to stem fly infestation but highly resistant to B.tabaci. The KDS-344 was found to be highly resistant against borer viz., Obereopsis brevis. Chlorantraniliprole 18.5 SC has been found effective against the defoliators viz., S. obliqua, S.litura and T.orichalcea and the borer, R.linearis over control. However, this insecticide appeared to be most promising to combat the larval population of T.orichalcea. The cultivars PS-1466, PS-1477, DS-12-5 and SL-795 were found to be resistant and high yielding during present study.
  • ThesisItemOpen Access
    Bioefficacy of botanicals and insecticides against polyphagous insects and phagostimulant activity of medicinal plants to Bombyx mori Linn.
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-07) Bhatt, Priyanka; Srivastava, R.P.
    A detailed investigation was undertaken to evaluate the effect of medicinal plant extracts and oils on Bombyx mori Linn. and Spodoptera litura Fab. and bioefficacy and growth regulatory activities of some medicinal plant oils and insecticides against S.litura and Spilosoma obliqua (Walker). All the experiments were conducted in Mulberry Sericulture Laboratory/Bioactive Plant Natural Products (BPNP) Lab. of the Department of entomology. The culture of the test species was maintained on fresh leaves of mulberry Morus alba (Linn.) and castor, Ricinus communis (Linn.).An experiment was conducted to find out phagoactivity of methanol powder (concentrations-0.5 & 1%) of five medicinal plant species viz., Ageratum conyzoides, Anethum graveolens, Lantana camara, Melia azedarach and Pteris excelsa to 24d old worms of B. mori. Methanol powder of M.azedarach (1%) reflected feeding stimulating activity (Mean leaf area consumed was 8.25cm2) over control (7.80cm2). High feeding deterrent property was exhibited by A.conyzoides flower head at 0.5 and 1% conc. (92.59 & 97.46%, respectively) folllowed by L.camara leaves at 0.5% (77.27%). In another experiment eleven plant oils viz., Asparagus racemosus, Celastrus paniculatus, Juglans regia, Myristica fragrans, Psoralea corylifolia,Cinnamomum tamala, Elettaria cardomum, Hedychium spicatum, Lagenaria vulgaris, Santalum album and Trigonella foenum-graecum (conc. 1 and 2%) were tested for their phagostimulant activity to 22 and 23d old worms of B.mori. Among all the treatments, only A.racemosus, J.regia and P.corylifolia at 1& 2% enhanced feeding in 22d old worms of B.mori; and S.album and T.foenum-graecum at 1& 2% and L.vulgaris at 2% were preferred by 23d old worms of B.mori.An experiment was conducted to evaluate the effect of four medicinal plant species viz., Anthocephalus chinensis, Bixa orellanaa, Calotropis procera and Madhuca indica on feeding behaviour of 8d old larvae of S. litura.Highest feeding inhibition was exerted by M.indica (51.34%). Further, the growth and developmental study revealed a significant reduction in wt. gain four days after feeding (DAF) in all the treatments, the highest being in M.indica (0.002 and 0.011g) in comparison to control (0.24 and 0.31g) against 4 and 7d old larvae of S.litura respectively. Significantly high larval mortality was observed with B.orellana (100 and 90%) and M.indica (100 and 63.33%) against 4 and 7d old larvae.Pupation per cent and adult emergence was significantly lower in B.orellana and M.indica.A comparative effect of methanol powder of nine plant species (at 5 and 10mg/ml) viz., Andrographis paniculata, Anethum graveolens, Azadirachta indica, Cassia fistula, Cuscuta reflexa, Dendropthoe falcata, Lantana camara, Melia azedarach and Vitex negundo wss evaluated against 2 and 6d old larvae of S. litura.Maximum growth reduction was observed in D.falcata leaves (98.58%) and L.camara fruit (93.58%) at 5mg/ml and C.reflexa stem (98.58%), C.fistula seeds and L.camara leaves (both 92.86%) at 10mg/ml against 2d old larvae and L.camara fruit at 5 and 10mg/ml (99.43 and 99.93%) against 6d old larvae.A.indica and L.camara fruit at 10mg/ml were more toxic to 2d old larvae giving 83.33 and 100% mortality, respectively while only L.camara fruit proved toxic against 6d old larvae of S.litura. In another experiment three plant oils viz., Jatropha curcas, Syzygium aromaticum and Veteveria zizanioides were tested at 2.5, 2.0,1.5,1.0 & 0.5% for their contact toxicity against 6d old larvae of S. litura. The order of toxicity at 12h, LC50 level was V.zizanioides (0.85%) > J.curcas (1.37%) > S. aromaticum (1.38%).An experiment was conducted to study the effect of camphor oil, Cinnamomum camphora at conc. of 0.5, 1.0, 1.5, 2.0 and 2.5μl/larva on feeding, growth and development of 8d old larvae of S.litura by topical application bioassay method.Significant reduction in weight gain/larva and larval mortality one day after exposure(DAE) was maximum at 2.5, 2.0 and 1.5μl dose.No adult emergence was reported at the aforesaid doses.An experiment was conducted to examine the contact toxicity of three insecticides viz alphamethrin (0.05, 0.009, 0.007,0.005 &0.003%), chlorpyrifos (0.1, 0.05, 0.005, 0.003 &0.001%) and emamectin benzoate (0.05,0.005,0.002, 0.005 & 0.0002%) against 13d old larvae of S.obliqua .The order of toxicity at 48 h LC50 level was: emamectin benzoate (0.002%)>chlorpyrifos (0.009%)>alphamethrin (0.013%).In another experiment, the effects of clove oil, Syzygium aromaticum and camphor oil, C.camphora (each at doses of 0.5, 1.0, 1.5, 2.0 and 2.5μl/larva) were evaluated on growth and development parameters of 13 and 15d old larvae of S.obliqua, respectively.Weight gain was significantly reduced in clove oil by 0.340,0.357 and 0.372 g in comparison of control (0.477g) at 2.5, 1.5 and 1.0μl/larva, respectively. Larval mortality was highest at 2.5μl/larva and further pupation per cent and adult emergence was lowest. Camphor oil at this dose viz 2.5μl/larva lowered weight gain by 0.073g in comparison of control (0.289g).Larval mortality was 66.6% with low pupation per cent and no adult emergence.