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Acharya N G Ranga Agricultural University, Guntur

The Andhra Pradesh Agricultural University (APAU) was established on 12th June 1964 at Hyderabad. The University was formally inaugurated on 20th March 1965 by Late Shri. Lal Bahadur Shastri, the then Hon`ble Prime Minister of India. Another significant milestone was the inauguration of the building programme of the university by Late Smt. Indira Gandhi,the then Hon`ble Prime Minister of India on 23rd June 1966. The University was renamed as Acharya N. G. Ranga Agricultural University on 7th November 1996 in honour and memory of an outstanding parliamentarian Acharya Nayukulu Gogineni Ranga, who rendered remarkable selfless service for the cause of farmers and is regarded as an outstanding educationist, kisan leader and freedom fighter. HISTORICAL MILESTONE Acharya N. G. Ranga Agricultural University (ANGRAU) was established under the name of Andhra Pradesh Agricultural University (APAU) on the 12th of June 1964 through the APAU Act 1963. Later, it was renamed as Acharya N. G. Ranga Agricultural University on the 7th of November, 1996 in honour and memory of the noted Parliamentarian and Kisan Leader, Acharya N. G. Ranga. At the verge of completion of Golden Jubilee Year of the ANGRAU, it has given birth to a new State Agricultural University namely Prof. Jayashankar Telangana State Agricultural University with the bifurcation of the state of Andhra Pradesh as per the Andhra Pradesh Reorganization Act 2014. The ANGRAU at LAM, Guntur is serving the students and the farmers of 13 districts of new State of Andhra Pradesh with renewed interest and dedication. Genesis of ANGRAU in service of the farmers 1926: The Royal Commission emphasized the need for a strong research base for agricultural development in the country... 1949: The Radhakrishnan Commission (1949) on University Education led to the establishment of Rural Universities for the overall development of agriculture and rural life in the country... 1955: First Joint Indo-American Team studied the status and future needs of agricultural education in the country... 1960: Second Joint Indo-American Team (1960) headed by Dr. M. S. Randhawa, the then Vice-President of Indian Council of Agricultural Research recommended specifically the establishment of Farm Universities and spelt out the basic objectives of these Universities as Institutional Autonomy, inclusion of Agriculture, Veterinary / Animal Husbandry and Home Science, Integration of Teaching, Research and Extension... 1963: The Andhra Pradesh Agricultural University (APAU) Act enacted... June 12th 1964: Andhra Pradesh Agricultural University (APAU) was established at Hyderabad with Shri. O. Pulla Reddi, I.C.S. (Retired) was the first founder Vice-Chancellor of the University... June 1964: Re-affilitation of Colleges of Agriculture and Veterinary Science, Hyderabad (estt. in 1961, affiliated to Osmania University), Agricultural College, Bapatla (estt. in 1945, affiliated to Andhra University), Sri Venkateswara Agricultural College, Tirupati and Andhra Veterinary College, Tirupati (estt. in 1961, affiliated to Sri Venkateswara University)... 20th March 1965: Formal inauguration of APAU by Late Shri. Lal Bahadur Shastri, the then Hon`ble Prime Minister of India... 1964-66: The report of the Second National Education Commission headed by Dr. D.S. Kothari, Chairman of the University Grants Commission stressed the need for establishing at least one Agricultural University in each Indian State... 23, June 1966: Inauguration of the Administrative building of the university by Late Smt. Indira Gandhi, the then Hon`ble Prime Minister of India... July, 1966: Transfer of 41 Agricultural Research Stations, functioning under the Department of Agriculture... May, 1967: Transfer of Four Research Stations of the Animal Husbandry Department... 7th November 1996: Renaming of University as Acharya N. G. Ranga Agricultural University in honour and memory of an outstanding parliamentarian Acharya Nayukulu Gogineni Ranga... 15th July 2005: Establishment of Sri Venkateswara Veterinary University (SVVU) bifurcating ANGRAU by Act 18 of 2005... 26th June 2007: Establishment of Andhra Pradesh Horticultural University (APHU) bifurcating ANGRAU by the Act 30 of 2007... 2nd June 2014 As per the Andhra Pradesh Reorganization Act 2014, ANGRAU is now... serving the students and the farmers of 13 districts of new State of Andhra Pradesh with renewed interest and dedication...

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Subject: Entomology × Author: ARCHANA DEVI, S. × End date: 2022 × Start date: 2022 × Type: Thesis ×
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    ThesisItemOpen Access
    “EFFICACY OF Bacillus thuringiensis Berliner STRAINS ON DIAMOND BACK MOTH, Plutella xylostella (Linnaeus) AND THEIR BIOREMEDIATION POTENTIAL ON SELECTED INSECTICIDES”
    (guntur, 2022-08-03) ARCHANA DEVI, S.; DEVAKI, K.
    A total of 50 soil samples were collected from the fields of cruciferous crops covering five districts viz., Visakhapatnam, Vizianagaram, Krishna, Kurnool and Chittoor in Andhra Pradesh to isolate bacterial cultures. These bacterial cultures were subjected to Gram staining, endospore staining and crystal staining for identification of Bacillus thuringiensis strains. Based on colony morphology in fried egg appearance, 38 cultures were picked for gram’s reaction and 37 gram positive bacterial cultures were observed with rod shaped cells. From 37 rod shaped gram positive bacteria, 10 (90.9%), 11 (84.61%), 6 (60.0%)4 (80.0%) and 6 (54.54%) were from the soil samples of Visakhapatnam, Vizianagaram, Krishna, Kurnool and Chittoor, respectively. Among the 37 Gram positive cultures, a total of 22 cultures were able to produce endospores. The gram positive samples obtained from Kurnool district produced highest per cent endospores (80.00%). The soil samples of Chittoor, Visakhapatnam, Vizianagaram and Krishna produced 54.54, 45.45, 30.76 and 30.00 per cent endospores respectively. About 15 crystal positive B. thuringiensis strains were identified. There was no variation among the 15 B. thuringiensis crystal positive strains regarding crystal morphology in the present study. All 15 crystal positive strains showed the presence of bipyramidal crystals. In laboratory bioassay, 15 strains with bipyramidal crystals were tested against third instar P. xylostella at 109 CFU ml-1 using leaf dip bioassay method and observed 8 strains (along with reference strain HD-1) were found effective with more than 50 per cent mortality. VZ19 from Visakhapatnam exhibited highest mortality (86.67%) followed by VZ12 (78.33%) which was also from xv Visakhapatnam. VZ19 (86.67%) was effective than standard check HD-1 (81.66%), which was superior over all other isolates. No mortality was recorded in untreated control, VP4 and CT45 treatments. Eight strains (Including HD1) with more than 50% mortality were further investigated for determining lethal concentration to arrive 50 per cent mortality (LC50) and time to kill 50 per cent larval population (LT50). LC50 values were in the range of 0.36×109 to 1.50×109. VZ19 showed the least LC50 value of 0.36×109 followed by HD1 (0.41x109) and VZ12 (0.46x109). Lowest LT50 of 46h was observed in treatment with VZ19 followed by HD1 (51h). The bioremediation potential of five selected strains, viz., VP3, VZ12, VZ19, KR34 and CT47, was studied against five insecticides, viz., imidacloprid, indoxacarb, fipronil, flubendiamide and chlorpyriphos that are being used in cruciferous crop ecosystems. Among the five strains tested for their biodegradability, KR34 identified as a potential strain that showed the ability to utilise the nutrients from fortified insecticides and recorded the highest optical density and colony growth in imidacloprid, indoxacarb, fipronil and flubendiamide fortified MSM broth. In the case of chlorpyriphos, VP3 showed the maximum efficacy, followed by VZ19 and KR34. Among the five insecticides, fipronil supported the maximum growth and development of bacterial colonies, which was reflected in the form of optical density and colony forming units. There was an increase in the optical density and colony forming units with the increase in insecticide concentration from 0.01 to 0.10% in all the four insecticides viz., imidacloprid, indoxacarb, fipronil, flubendiamide. In case of chlorpyiphos, the lower concentration supported bacterial growth instead of higher concentrations.