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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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20211
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Subject: Plant Biotechnology × Author: AJITHA, V × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    IDENTIFICATION OF BACTERIAL BLIGHT RESISTANCE GENES FROM Oryza glaberrima AND MARKER ASSISTED INTROGRESSION INTO IR64
    (2021-09-06) AJITHA, V; PADMA, V.
    African cultivated rice Oryza glaberrima is learnt to be a resource for many useful biotic and abiotic resistant genes which can be used in improvement of rice. In many studies O. glaberrima was reported to be resistant to bacterial blight (BB) caused by Xanthomonas oryzae pv. oryzae (Xoo) which causes severe infection in rainfed and irrigated conditions. The current study was aimed to identify sources of BB resistance in O. glaberrima accessions and introgress into elite rice cultivar Oryza sativa L. cv. IR64 background. Among 31 accessions of O. glaberrima, BB resistance was identified in 28 accessions. Genotyping of O. glaberrima accessions revealed the absence of known genes signifying the possibility of novel genes conferring bacterial blight resistance. Out of 28 BB resistant accessions of O. glaberrima, one accession EC861812 was screened for 10 different strains of Xoo, which showed resistance to moderate resistance to all strains, except PNT 09-1, indicating that the BB resistance is of broad-spectrum nature. In order to develop the interspecific segregating population to study the inheritance of BB resistance, the accession EC861812 (donor parent) was crossed with IR64 (susceptible to BB) and resistance was transferred to IR64 through backcross breeding. Inheritance studies conducted in segregating populations with BC1F2 (1.0 P value) and F3 (0.0027 P value) is fitting resistance to susceptible in 3:1 ratio indicating the possibility of single dominant gene inheritance. BB resistant plants of BC1F2 were backcrossed to IR64 and selfed to generate BC2F2 population. Recurrent parent genome (RPG) recovery estimation was done in six selected resistant plants of BC2F2 population. A total of 70 parental polymorphic SSR markers present across all the 12 chromosomes were used for genotyping of six BC2F2 plants. Among the six BB resistant lines of BC2F2, four lines viz., 58*-4-14*-3-5 (84.5%), 58*-5-6*-3-6 (78.3%), 58*-5-6*-3-1 (71.9%) and 58*-5- 6*-3-3 (71.5%) had more than 70% recurrent parent genome. Agro morphological data of BC2F2 lines revealed that these lines performed better than the donor parent O. glaberrima in terms of reduced days to 50% flowering and decreased plant height. Data for yield traits was also recorded in 84 introgressed lines (ILs) from BC1F2:3 populations for the estimation of variability, heritability and genetic advance. Estimates of genetic variability revealed that the GCV and PCV were comparatively higher for number of tillers/hill, panicles/hill, yield/plant, spikelets/panicle and spikelet fertility indicating the possibility of getting good response to selection in these traits. High heritability combined with high genetic advance as per cent mean was observed for plant height, number of tillers/hill, number of panicles/hill, number of spikelets/panicle, spikelet fertility (%) and yield/plant (g). Among 84 ILs, three lines viz., 58*-1-18, 58*-9-5 and 58*-3-27 with mean yield performance of 9.2±0.21g, 8.2±0.21g and 7.5±0.21g, respectively, were promising since their mean yield was higher than donor O. glaberrima (EC861812) (7.5±0.21g) but lower than the recurrent parent IR64 (10.4±0.21g). The observed lower yield in the ILs compared to the recurrent parent might be due to the persistence of shattering and spikelet sterility. Among these three lines, 58*-1-18 recorded higher yield. However, further studies are required for molecular mapping of BB resistance using BB resistant introgression lines developed from this study. The BB resistant BC2F2 introgressed lines identified in the present study showed that the introgression was feasible in the cross between O. glaberrima and O. sativa and ILs will be useful as pre-breeding resources for the transfer of BB resistance into indica varieties for the development of resistant cultivars for sustainable management of bacterial blight in rice