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.
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...
The present study “Forewarning models for pests and diseases of
groundnut” was mainly aimed at to study the behaviour of climate factors on
major pests and diseases of groundnut, to establish association between
climatic factors and pests and diseases of various groundnut varieties in
different years in groundnut 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 groundnut varieties with respect to climate factors. The selection of
location (Regional Agricultural Research Station (RARS), Tirupati) for data
collection was done on the basis of major groundnut grown area and also
compatibility. The secondary data on major pests (%) and disease (%)
incidence of various groundnut varieties along with climate factors were
collected for the period from 2007 to 2016 (10 years) during crop seasons.
The correlation studies were under taken 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
groundnut pest and disease incidence. The logistic models were also used
for prediction of the probabilities of occurrence /non-occurrence of pests and
disease of groundnut in standard weeks of groundnut 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.
Analysis of Variance (ANOVA) techniques applied to test the significance
between standard weeks/varieties/years with respect to pest and diseases of
groundnut. Finally, markov chain models were used to identifying the
presence/absence of pest in consequent days effectively.
The results revealed that climatic factors from 2007 to 2016 in
groundnut growing seasons the rainfall distribution varied greatly within
groundnut growing seasons over years (13.61 mm – 36.06 mm). The
average minimum temperatures (21.52°C – 22.03°C), maximum
temperatures 31.80°C – 34.75°C), morning relative humidity (73.11 -
83.58%) and evening relative humidity (43.81 - 58.36%) were observed.
The results revealed that the days with RH > 78 per cent, temperature
(13°C - 42°C) and weekly rainfall are most critical factors in the
development of leafhopper incidence, the days with RH > 78 per cent,
temperature (15°C - 42°C) are the most critical factors in the development
of groundnut leaf miner incidence, the days with RH > 77 per cent,
temperature (19°C - 37°C) are the most critical factors in the development
of thrips incidence and the days with RH > 77 per cent, temperature (15°C -
43°C) are the most critical factors in the development of root grub
incidence. The days with RH > 81 per cent, temperature (16°C - 35°C) and
weekly rainfall are the most critical factors in the development of late leaf
spot incidence and the days with RH > 82 per cent, temperature (21.2°C -
35°C) and weekly rainfall are the most critical factors in the development of
Correlation coefficients were computed to ascertain the pattern of
relationship between major pests/diseases and climate factors over years
(2007-2016) and within year (groundnut growing seasons) under different
groundnut varieties. Overall for the years 2007 to 2016 the results of
correlation studies revealed that, there was a positive relationship between
the leafhopper incidence and climate factors viz., rainfall, evening relative
humidity and sunshine hours. There exist positive relationship between the
groundnut leaf miner incidence and maximum temperature, minimum
temperature, rainfall and evening relative humidity and negative relationship
with morning relative humidity and sunshine hours. For thrips there exist
positive relationship with temperatures and wind velocity and negative
relationship with morning relative humidity, evening relative humidity,
rainfall and sunshine hours. In case of root grub there exist positive
relationship with temperatures, rainfall, evening relative humidity, wind
velocity and negative relationship with morning relative humidity and
The results on late leaf spot revealed that the positive relationship
with temperatures, sunshine hours and the negative relationship with
morning relative humidity, evening relative humidity and wind velocity.
For rust, among the climate factors evening relative humidity, wind
velocity and rainfall exhibited negative association and rest of the climate
factors were positively associated.
The results of ANOVA for major pests/diseases established that there
was significant variation between the varieties, between the standard weeks
and over years.
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 of
The markov chain models revealed that there was significant change
occurring of various pests except root grub in consecutive days for the latest
period (2012-16). Further, with the help these models one can predict that
the occurring of various pests/diseases of groundnut over the period of time.