Thumbnail Image

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...

News

https://angrau.ac.in/ANGRU/Library_Resources.aspx

Browse

20221
Reset filters
Subject: Entomology × Author: ANUSHA, NITTA × End date: 2022 × Start date: 2022 × Type: Thesis ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    DEVELOPMENT AND STANDARDIZATION OF BLACKGRAM BASED SEMI-SYNTHETIC DIET FOR SPOTTED POD BORER, Maruca vitrata (Geyer) (CRAMBIDAE: LEPIDOPTERA) AND ITS MANAGEMENT WITH BIOPESTICIDES
    (guntur, 2022-08-10) ANUSHA, NITTA; SAI RAM KUMAR, V.
    The present investigation was carried out at the Department of Entomology, Agricultural College, Bapatla during the period 2020-21 on ―Development and Standardization of Blackgram based Semi-Synthetic Diet for Spotted Pod Borer, Maruca vitrata (Geyer) (Crambidae: Lepidoptera) and its Management with Biopesticides‖. To mass rear M. vitrata under laboratory conditions, a study was carried out to develop a blackgram based semi-synthetic diet (D-B). Comparison of several biological, reproductive and digestive parameters for three successive generations of M. vitrata reared on four different semi-synthetic diets viz., D-J, D-JR, D-NEW and blackgram based semi-synthetic diet (D-B) along with blackgram natural diet was successfully attempted. Larvae fed on blackgram based semi-synthetic diet (D-B) recorded the shortest developmental time (29.37 days), the highest food consumption (64.21 mg) and fecal production (20.83 mg) resulting in the maximum larval and pupal weights (48.46 and 47.11 mg, respectively). The insects fed on D-NEW and blackgram natural diet recorded the longest developmental period (32.90 and 34.48 days) with minimum larval weights (44.03 and 48.64 mg) and pupal weights (40.39 and 49.43 mg), respectively. The highest per cent pupation (82.53), adult emergence (78.22), larval (6.50) and pupal growth indices (12.86) were recorded on larvae fed with blackgram based semi synthetic diet (D-B). The highest sex ratio (1.81) and fecundity (43.94 eggs) were recorded on blackgram semi-synthetic diet (D-B). The highest Relative Consumption Rate (0.23 gg-1day-1), Relative Growth Rate (0.084 gg-1day1), Relative Metabolic Rate (0.073 gg-1day-1), Approximate Digestibility (67.49%) and Metabolic Costs (46.51%) lowest Efficiency of Conversion of Ingested Food (36.09%) and Efficiency of Conversion of Digested Food (53.49%) were recorded on blackgram semi-synthetic diet (D-B). xvi Laboratory experiments were conducted to test the efficacy of native Bt isolates viz., 16, 49, 51, 52, 55, 493.A bioassay was carried out on third instar larvae of M. vitrata using a blackgram flower dip bioassay method and compared with a reference strain, HD-1. The mean per cent mortality of M. vitrata larvae with native Bt isolates ranged between 60.00 and 93.33 per cent. Among the seven treatments tested, Bt isolate HD-1 was found to be highly effective against third instar larvae with LC50 and LC90 values of 3.18 × 107 and 3.62 × 1011 CFU, respectively with LT50 and LT90 values of 108.15 and 168.84 hpi, respectively. Among the native Bt isolates the lethal action regarding LT50 was recorded by Bt isolate 493 followed by Bt isolates 16, 51, 52, 55 and 49 with 112.05, 117.96, 130.14, 134.33, 135.30 and 150.44 hpi, respectively and the LC50 of 1.53× 108, 3.64 × 108, 9.15 × 109, 3.09 × 1010,1.30 × 1010 and 5.57× 1010 CFU ml-1, respectively. Similarly, LT90 was recorded with 184.01, 206.15, 234.22, 239.71, 240.46, and 272.88hpi, respectively and the LC90 of 1.99× 1012, 9.05 × 1013, 2.32 × 1015, 9.24 × 1015, 5.39 × 1015, and 1.60 × 1017 CFU ml-1, respectively. Field efficiency of nine microbial bioinsecticides (Bt isolates16, 49, 51, 52, 55, 493, HD-1, Dipel, M. anisopliae) and spinosad 45 SC were evaluated against M. vitrata infesting blackgram during rabi season of 2021. The results revealed that spinosad 45 SC, Dipel, M. anisopliae, Bt isolate HD-1and Bt isolate 493 were found to be the most effective in reducing the larval population and also in per cent reduction of the bud, flower and pod damage of blackgram. The maximum increase of seed yield (166 kg) of blackgram over control was recorded in spinosad 45 SC. The next effective treatments were Dipel, M. anisopliae, Bt isolate HD-1and Bt isolate 493. The treatments of spinosad 45 SC and Dipel gave the highest ICBR of 1:7.24 and 1:6.75, respectively followed by M. anisopliae (1:6.24) Bt isolate HD-1 (1:5.62) and Bt isolate 493 (1:4.70). Thus, three sprays of microbial bioinsecticides, at the time of bud initiation, flowering and pod developmental growth stages were found efficacious on the field management of M. vitrata on blackgram with higher yields.