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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: Genetics and Plant Breeding × Author: . SUDEEPTHI, K × Start date: 2020 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    GENETICS OF ANAEROBIC GERMINATION TRAITS IN RICE (Oryza sativa L.)
    (Acharya N.G. Ranga Agricultural University, Guntur, 2021-12-08) . SUDEEPTHI, K; SRINIVAS, Dr. T.
    The present investigations were undertaken at Regional Agricultural Research Station, Maruteru, West Godavari District of Andhra Pradesh, during 2017-2019. Anaerobic germination screening of 107 rice genotypes revealed MTU 1140, MTU 2716, PLA 1100, RTCNP 28 and RTCNP 50 to be tolerant for anaerobic germination with superior germination per cent, shoot length, root length and seedling dry weight in addition to seedling vigour index and anaerobic response index, compared to other genotypes and hence, were found promising for use in direct seeding under wet conditions. The genetic variability studies revealed narrow difference between PCV and GCV for majority of the traits. High genotypic and phenotypic coefficient of variation along with high heritability coupled with high genetic advance as per cent of mean was exhibited by germination per cent, root length, seedling dry weight, seedling vigour index, anaerobic response index and number of ear bearing tillers per plant. Character association and path studies revealed germination per cent and shoot length to be effective selection criteria for improvement of seedling vigour index, while, number of ear bearing tillers per plant, total number of grains per panicle and test weight were found to be important for improvement of grain yield per plant. The diversity analysis for anaerobic germination traits using Mahalanobis D2 grouped the 107 rice genotypes studied, into nine clusters. The mode of distribution of genotypes was observed to be at random. Hybridization of genotype of cluster IX (MTU 1140) with genotypes of cluster VII (MTU 1010, MTU 1156, NONA BOKRA, SM 10, SM 14) were expected to result in transgressive segregants due to their high diversity. Maximum genetic diversity was contributed by shoot length, followed by seedling dry weight, anaerobic response index, germination per cent and root length. The PCA analysis revealed two principal components with eigen values more than xvii one contributing to 77.662 per cent of the total variability. Further, the study identified germination per cent, shoot length, anaerobic response index and root length as the maximum contributing traits towards the existing variability. Mahalanobis D 2 for yield and yield component traits grouped the 107 rice genotypes into seven clusters. Maximum inter-cluster distance was observed between cluster II and III indicating that genotypes from these clusters were highly divergent meriting their consideration in selection of parents for hybridization. Minimum intercluster distance was observed between cluster VI and VII, while, the genotypes included in cluster IV exhibited maximum intra-cluster distance. Hybridization between MTU 1153, MTU 1156, MTU 1010, MTU 3626, FL 478, MTU 7029, MTU 1001 of cluster II and the genotype, RTCNP 35 of cluster III are expected to result in greater variability and transgressive segregants. Days to 50 per cent flowering contributed maximum to total divergence. The PCA analysis revealed three principal components with eigen values greater than one contributing to 69.412 per cent towards the total variability. Further, the study also identified the maximum contributing traits towards the existing variability as panicle length, days to 50 per cent flowering, number of ear bearing tillers per plant, plant height and test weight. Molecular characterization studies of 107 rice genotypes with 30 anaerobic germination linked SSR markers revealed 18 SSR markers to be highly polymorphic. Further, a total of 49 reproducible polymorphic alleles were amplified with an average of 2.72 alleles per locus with these 18 polymorphic SSR markers. An analysis of the UPGMA (Unweighted Pair Group Method with Arithmetic Mean) based dendrogram revealed grouping of the 107 genotypes into two major clusters. The cluster diagram revealed additional sub clusters (11) in Cluster I. The genotypes, MTU 1140, PLA1100, SM-2 and RTCNP-28 which had recorded more than 80 per cent germination under anaerobic conditions of submergence for 14 days, gave similar amplification bands at 330bp with RM 23877 anaerobic germination linked marker. The markers, RM 23877, RM 6318, RM 17403, RM 5361, RM 6737 and RM 149 with high PIC value were found to be highly informative markers (PIC > 0.50) with potential for identification of anaerobic germination tolerance genotypes. Gene action studies for anaerobic germination traits revealed inadequacy of simple-additive dominance model for majority of the traits studied in most of the crosses, based on the significance of scaling tests A, B and C. In general, dominance effects (h) had exceeded the corresponding additive effects (d) in almost all the crosses. Presence of duplicate type of epistasis was noticed in most of the crosses for most of the traits. Scaling tests and gene action studies for yield and yield component traits also revealed the inadequacy of simple-additive dominance model for majority of the traits studied in most of the crosses. However, the adequacy of simple additive-dominance model was observed for few crosses with respect to number of ear bearing tillers per plant, panicle length and test weight. The results also revealed the pre-ponderance of dominant gene action (h) for majority of the traits in most of the crosses studied. The gene interaction studies revealed the pre-dominance of dominance x dominance (l) gene action for grain yield and majority of the yield traits studied in most of the crosses. Further, duplicate epistasis was noticed for majority of the traits studied in most of the crosses.