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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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2014 - 20182
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Subject: Entomology × Author: DIVYA BHARATHI, T ×
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    ThesisItemOpen Access
    RESPONSE OF Spodoptera exigua HUBNER (NOCTUIDAE : LEPIDOPTERA) ON CHICKPEA UNDER ELEVATED CO2 AND CONSTANT TEMPERATURES
    (Acharya N.G. Ranga Agricultural University, 2018) DIVYA BHARATHI, T; KRISHNAYYA, P.V.
    Studies on ‘Response of Spodoptera exigua Hubner. (Noctuidae : Lepidoptera) on chickpea under elevated CO2 and constant temperatures’ were conducted during 2015-2017 at ICAR - Central Research Institute for Dryland Agriculture (CRIDA), Hyderabad, Telangana. The growth and development of four successive generations of S. exigua on chickpea grown under ambient CO2 (aCO2; 380 ± 25 ppm) and elevated CO2 (eCO2; 550 ± 25 ppm) conditions was studied. Under elevated CO2 conditions the concentrations of nitrogen (9.16-22.35 %), amino acids (7.69-14.08 %) and proteins (5.73-13.22 %) were lower compared to ambient CO2 conditions. But the concentrations of carbon (6.76- 12.22 %), C: N (17.53-44.58 %), tannins (23.77-35.00 %), total soluble sugars (TSS) (19.23-29.75 %), starch (31.91-44.29 %) and carbohydrates (19.90-30.16 %) were higher under elevated CO2 conditions compared to that under ambient CO2 conditions. As a result, S. exigua experienced a significant impact on its growth and development resulting in more consumption of chickpea foliage (25.21-32.10%), increased larval weight (4.75-8.37 %), decreased pupal weight (2.59-6.52 %), extended larval duration (1-2 days) and reduced fecundity (5.68 - 13.30 %) in all the four successive generations compared to that under aCO2 conditions. Further, elevated CO2 conditions significantly altered the quality of the chickpea foliage resulting in increased relative consumption rate (RCR, 5.60-6.75 %) and approximate digestibility (AD, 4.48-6.45 %) but decreased efficiency of conversion of ingested food (ECI, 16.27-20.14 %), efficiency of conversion of digested food (ECD, 19.92-24.12 %) and relative growth rate (RGR, 11.19-12.15 %) of S. exigua compared to those at aCO2 conditions across the four generations. The potential number of larval individuals and total eggs laid by all females under eCO2 conditions reduced by 11.33 per cent and 8.48 per cent in the second generation, 26.39 per cent and 23.57 per cent in the third generation and 34.89 per cent and 41.71 per cent in the fourth generation, respectively. The combined effect of higher larval mortality and lower fecundity under eCO2 conditions resulted in potential population consumption of S. exigua decreased by 7.45 per cent in the third generation and 26.47 per cent in the fourth generations, respectively compared to aCO2 conditions. Potential population increase index were reduced by 16.77 per cent in the second generation, 12.39 per cent in the third generation and 13.03 per cent in the fourth generations under eCO2 compared to aCO2 conditions, respectively. The durations of different growth stages and life table parameters of S. exigua were studied at 20, 25, 27, 30, 33 and 35 °C temperatures under two CO2 conditions. Developmental time of S. exigua (egg to adult) declined with increase in temperature and was more evident under eCO2 conditions. Under eCO2 conditions, the durations of egg (5.20 to 2.00 days), larva (24.60 to 9.45 days), pupa (15.45 to 5.60 days), adult (11.50 to 5.40 days) and total developmental periods (56.75 to 22.45 days) decreased from 20 to 35 °C temperature compared to aCO2 conditions. Intrinsic rate of increase (rm), finite rate of increase (λ), net reproductive rate (Ro), gross reproductive rate (GRR) and mean generation time (T) of S. exigua increased significantly with temperature range of 27 - 33 °C and declined further with increase in temperature and showed a non-linear relationship with temperature. Reduction of ‘T’ was observed from a maximum of 49.52 days at 20 °C to a minimum 21.90 days at 35°C. The thermal requirement of S. exigua from egg to adult (total development period) was 588.24 degree days under eCO2 as against 555.56 degree days under aCO2 conditions. Under elevated CO2 conditions, chickpea plants exhibited lower nitrogen levels due to increased photosynthesis resulted in poorer food quality for S. exigua larvae leading to prolonged larval duration, lower pupal weight and lower fecundity, increased food consumption and assimilation with reduced food conversion efficiency by larvae and ultimately resulted in slow growth across four generations.
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    ThesisItemOpen Access
    ASSESSMENT OF PREFERENTIAL DEVELOPMENT AND DAMAGE ON HOSTGRAIN ADMIXTURES BY Callosobruchus maculatus F.
    (ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, 2014) DIVYA BHARATHI, T; KRISHNAYYA, P.V.
    The “Assessment of preferential development and damage on hostgrain admixtures by Callosobruchus maculatus (F.)” was conducted in the Department of Entomology, Agricultural College, Bapatla, Guntur district, Andhra Pradesh during 2013-14. For C. maculatus and C. chinensis the most preferred host-grains for oviposition were pillipesara (10.25 eggs/5g) and blackgram (7.75 eggs/5g), whereas for per cent survival greengram (89.52%) and bengalgram (86.43%) were the most preferred, respectively. In case of mean developmental period and index of susceptibility, greengram alone was most preferred by C. maculatus (27.32 days and 6.91) and C. chinensis (28.47 days and 6.09). On completion of total storage period (120 DAR) the damage caused by C. maculatus and C. chinensis in terms of per cent number of grains damaged was the highest in greengram (94.88%) and bengalgram (90.65%), for per cent weight loss of grains was the highest in greengram (74.92%) and bengalgram (58.55%) and the per cent moisture was the highest in greengram (18.61%) and pillipesara (15.56%), respectively. At 120 DAR the damage caused by C. maculatus and C. chinensis in terms of per cent number of grains damaged was the lowest in pea (17.65 and 27.59). The least per cent weight loss of grains was in pea and soybean (9.89% and 18.19%), whereas the per cent moisture was recorded the lowest in soybean (12.01%) and pea (8.61%), respectively. Greengram was found to be most preferred host- grain for C. maculatus for ovipositional preference (30.00 eggs/5g), per cent survival (84.49%), per cent number of grains damaged (9.37%) and per cent weight loss of grains (3.07%). Similarly pea was found to be least preferred host-grain for C. maculatus for ovipositional preference (5.75 eggs/ 5g), but soybean and pea recorded zero per cent insect survival and 0.00% grains damage and weight loss of grains at one month after storage period in multiple host- grain choice test. On completion of total storage period (120 DAR) in the ratio of 45: 55 admixture, the least preferred combination of host-grains for oviposition by C. maculatus was greengram + pillipesara (7.33 + 1.33 eggs/5g), the least per cent number of grains damaged was greengram + blackgram (88.60 + 43.23%), the least per cent weight loss of grains was greengram + pea (47.06 + 24.91%) and the least per cent moisture was in greengram + soybean (13.03 + 6.27%). In the ratio of 30: 70 admixture the least preferred combination for oviposition by C. maculatus was greengram + soybean (7.33 + 1.67 eggs/5g), the least per cent number of grains damaged was greengram + soybean (91.85 + 62.98%), the least per cent weight loss of grains was in greengram + pillipesara (18.42 + 30.51%) and the least per cent moisture was in greengram + soybean (11.76 + 8.71%) at 120 DAR. In the ratio of 15: 85 admixture, the least preferred combination for oviposition by C. maculatus was in greengram + pea (14.67 + 1.67 eggs/5g), the least per cent number of grains damaged was in greengram + soybean (95.74 + 85.18%), the least per cent weight loss of grains was in greengram + pea (47.16 + 19.45%) and the least per cent moisture was in greengram + pea (13.35 + 8.92%) at 120 DAR.