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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: Agricultural Statistics × End date: 2014 × Type: Thesis ×
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    ThesisItemOpen Access
    FOREWARNING MODELS FOR PESTS AND DISEASES OF RICE BASED ON CLIMATE FACTORS
    (ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, 2014) MEENA KUMAR, V; RAVINDRA REDDY, B
    The present study “Forewarning models for pests and diseases of rice based on climate factors” was mainly aimed at to study the behavior of climate factors on major pests and diseases of rice, to establish association between climatic factors and pests and diseases of various rice varieties in different years in rice growing seasons, to generate forewarning statistical models for prediction of major pests and diseases based on climatic factors and also to study the influence of pests and diseases on various rice varieties with respect to climate factors. The selection of location (Agricultural Research Station, Nellore) for data collection was done on the basis of major rice grown area and also compatibility. The secondary data on major pests (%) and disease(%) incidence of various rice varieties along with climate factors were collected for the period from 2003 to 2013 (11 years ) during crop seasons. The correlation studies were undertaken to study the relationship between various pests and disease incidence subject to the climate factors. The Multiple Linear Regression (MLR) models were used for predication of rice pest and disease incidence. The Logistic models were also used for prediction of the probabilities of occurrence /non-occurrence of pests and disease of rice in standard weeks of rice growing seasons. The descriptive statistics were used to know the behaviour of climate factors along with pests and disease incidence over years during the crop seasons. Finally, Analysis of Variance (ANOVA) techniques applied to test the significance between standard weeks/varieties/years/dates of plantings with respect to pest and diseases of rice. The results revealed that climatic factors from 2003 to 2013 in rice growing seasons the rainfall distribution varied greatly within rice growing seasons over years (10.2 mm – 35.4 mm). The minimum temperatures (220C – 230C), maximum temperatures (280C -300C), morning relative humidity (87-93%) and evening relative humidity (66-72%) were observed. The results revealed that the days with relative humidity (RH) > 92 per cent, temperature (210C - 310C) and weekly rainfall are most critical factors in the development of stem borer incidence, the days with RH > 90 per cent, temperature (210C - 360C) and weekly rainfall are most critical factors in the development of leaf folder incidence and the days with RH > 91per cent, temperature (220C - 310C) are the most critical factors in the development of gall midge incidence. The results revealed that the days with RH > 89 per cent, temperature (200C - 350C) and weekly rainfall are the most critical factors in the development of blast incidence and the days with RH > 91per cent, temperature (200C - 310C) and weekly rainfall are the most critical factors in the development of bacterial leaf blight incidence. Correlation coefficients were computed to ascertain the pattern of relationship between major pests/diseases and climate factors over years (2003-2013) and within year (rice growing seasons) under different rice varieties. Overall for the years 2003 to 2013 the results of correlation studies revealed that, there was positive relationship between the stem borer incidence and climate factors viz., rainfall, maximum temperature, morning relative humidity, evening relative humidity and significant positive relationship with minimum temperature. There existed positive relationship between the leaf folder incidence and rainfall, minimum temperature, morning relative humidity and evening relative humidity and negative relationship with maximum temperature. For gall midge there existed positive relationship with rainfall, relative humidity and negative relationship with temperatures. There results on blast revealed that the positive relationship with morning relative humidity and evening relative humidity and negative relationship with rainfall maximum temperature, minimum temperature. For bacterial leaf blight, among the climate factors minimum temperature exhibited negative association and rest of the climate factors were positively associated while wind velocity imparted significant positive correlation. The results of ANOVA for major pests/diseases established that there was significant variation between the varieties, between the standard weeks and dates of planting . The MLR models for within year and between years found to be useful in the prediction of various pests and diseases incidence. The logistic models were found to be useful in the prediction of probabilities for occurrence and non-occurrence of various pests and disease incidence .