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Acharya N. G. Ranga Agricultural University, Guntur (AP)

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: Textile and Apparel Designing × Author: SAHITHI, P. × Start date: 2018 ×
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    ThesisItemOpen Access
    A COMPARATIVE STUDY ON DYEING WITH CANNONBALL FRUIT (COUROUPITA GUIANENSIS) AND NATURAL INDIGO
    (guntur, 2022-08-23) SAHITHI, P.; ANITHA, D.
    ABSTRACT In concern with the environmental pollution, world is now shifting its interest toward 100 per cent environmental friendly products. Natural dyes suffice this concern of consumers in reducing the pollution level of dyeing industry. The meagre resources coupled with demand has shifted the focus of dyeing industry to investigate synthetic sources which are similar to natural dyes in terms of colour yet being more economical. One such dye is natural Indigo, which is now substituted with synthetic alternatives owing to the demand and weak supply market scenario. This alternative is costing the environment by its enormous pollution levels due to toxic chemical usage in its synthesis and dyeing. Demand for pure natural products and resistance from environmentalists, made researchers deliberate to explore for alternate sources and experiment to combat pollution. Present study is focussed on using natural, eco-friendly alternative source of Indigo dye for cotton fabric and to compare with the already existing age old source. Cannonball fruit was used as a new source for Indigo dye and Indigofera tinctoria was used to compare it in terms of dyeing and properties on cotton fabric. Natural dye has poor affinity for cellulosic fibers due to large dye molecules and it is also true with Indigo dye. Four natural tannin mordants Pomegranate peel (Punica granatum), Amla fruit (Emblica officinalis), Aloe vera (Aloe barbadensis miller), and Tamarind seed coat (Tamarind indica) were selected to observe the effect of mordants on colour strength and colour fastness of Indigo dyes. Dye extraction and dyeing methods were optimized for both Cannonball fruit and Indigo leaf powder dyes. Dye was extracted by fermenting the ripe fruit of Cannonball tree for three days. Dyeing was carried out after filtrate reduced with 1g of Sodium hydroxide and 2g of Sodium hydrosulphite at temperature of 900 C for 10 minutes and dyed at 900 C for 30 minutes. 15 Dye was extracted from Indigo leaf powder by fermenting for 24 h and the extract was reduced at 700 C with 12g/l of Sodium hydroxide and 10g/l of Sodium hydrosulphite for 30 min and dyed at 700 C for 30 min. Three mordant concentrations of each mordant ie. Tamarind seed coat (Ts10%, 15%, 20%), Aloe vera (Av 20g/l, 30g/l, 40g/l), Amla fruit (Am 10%, 15%, 25%), Pomegranate peel (Pp 10%, 15%, 25%) and two mordanting methods ie. Pre mordanting and Post mordanting were used in the study. Analysis of dyed fabric samples in Cannonball fruit dye, indicated that post mordanting was better than pre mordanting and colour strength improved with all mordants except Av over control. Most of the concentrations of Ts, Am and Pp mordant showed higher colour strength over control. L* a* b* values showed that all dyed fabrics except Aloe vera mordanted fabrics were lighter in shade than control. Ts and Pp mordanted fabrics showed negative a* values in pre mordanted samples. All pre and post mordanted samples with all other mordants showed negative b* values except post mordanted samples of Pp extract. Aloe vera as mordant has not influenced the properties of dyed fabrics. Indigo leaf powder dyed samples showed improved colour strength, with all mordants. Pre mordanting with Ts had higher colour strength over post mordanting. Pre mordanting with Av and Pp at lower concentration improved colour strength. Amla fruit mordant showed good colour strength in almost all concentration over other mordants. L* values were lower in mordanted samples over control. Pre mordanted with Ts and post mordanted with Av fabrics showed negative a* values. Almost all mordanted fabrics showed negative b* values except in Ts post mordanted and Pp pre mordanted ones. Colour fastness was graded good in both Cannonball fruit and Indigo leaf powder dyed fabrics with mordanting with all four mordants over control. Ts mordant showed good wash fastness compared to other three mordants in both the dyes. Dry rubbing fastness grades were good over wet rubbing in all four mordants. Rubbing fastness grades in Cannonball fruit dyed fabrics exhibited higher improvement with Amla fruit mordant. In Indigo leaf powder dyed samples rub fastness grades were good with Tamarind seed coat mordant. Amla fruit mordant showed good light fastness in Cannonball fruit dyed samples whereas Aloe vera mordant showed good light fastness in Indigo leaf powder dyed samples. Improved perspiration fastness was observed with all four mordants in both the dyes. All mordants improved colour strength and colour fastness of the Indigo dyed fabrics. Since no chemical mordants and dyes were used in the study, it will be helpful for small scale textile dyeing sectors for better colour strength of Indigo dyed fabrics and overcome the problem of colourfastness.
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