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Assam Agricultural University, Jorhat

Assam Agricultural University is the first institution of its kind in the whole of North-Eastern Region of India. The main goal of this institution is to produce globally competitive human resources in farm sectorand to carry out research in both conventional and frontier areas for production optimization as well as to disseminate the generated technologies as public good for benefitting the food growers/produces and traders involved in the sector while emphasizing on sustainability, equity and overall food security at household level. Genesis of AAU - The embryo of the agricultural research in the state of Assam was formed as early as 1897 with the establishment of the Upper Shillong Experimental Farm (now in Meghalaya) just after about a decade of creation of the agricultural department in 1882. However, the seeds of agricultural research in today’s Assam were sown in the dawn of the twentieth century with the establishment of two Rice Experimental Stations, one at Karimganj in Barak valley in 1913 and the other at Titabor in Brahmaputra valley in 1923. Subsequent to these research stations, a number of research stations were established to conduct research on important crops, more specifically, jute, pulses, oilseeds etc. The Assam Agricultural University was established on April 1, 1969 under The Assam Agricultural University Act, 1968’ with the mandate of imparting farm education, conduct research in agriculture and allied sciences and to effectively disseminate technologies so generated. Before establishment of the University, there were altogether 17 research schemes/projects in the state under the Department of Agriculture. By July 1973, all the research projects and 10 experimental farms were transferred by the Government of Assam to the AAU which already inherited the College of Agriculture and its farm at Barbheta, Jorhat and College of Veterinary Sciences at Khanapara, Guwahati. Subsequently, College of Community Science at Jorhat (1969), College of Fisheries at Raha (1988), Biswanath College of Agriculture at Biswanath Chariali (1988) and Lakhimpur College of Veterinary Science at Joyhing, North Lakhimpur (1988) were established. Presently, the University has three more colleges under its jurisdiction, viz., Sarat Chandra Singha College of Agriculture, Chapar, College of Horticulture, Nalbari & College of Sericulture, Titabar. Similarly, few more regional research stations at Shillongani, Diphu, Gossaigaon, Lakhimpur; and commodity research stations at Kahikuchi, Buralikson, Tinsukia, Kharua, Burnihat and Mandira were added to generate location and crop specific agricultural production packages.

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  • ThesisItemOpen Access
    Preliminary screening of some botanicals on Brinjal (Solanum melongena L.) against Root Knot Nematode, Meloidogyne incognita
    (AAU, Jorhat, 2017-01) Bhuyan, Pranjal; Hazarika, Koilash
    Nematicidal activity of twenty one leaf aqueous extract of botanicals like Melia azadarach, Nycanthus arbor-tristis, Ocimum gratissimum, Piper betle, P. nigrum, P. hydropipper, Ricinus communis, Terminalia arjuna, Vitex negundo, Acarus calamus, Azadirachta indica, Bacopa monnieri, Annona squamosa, Psidium guajava, Mimosa pudica, Acorus calamus, Cymbopogon citratus, Pogostemon cablin, Ipomoea carnea, Mikania micrantha and Iberis linifolia were tested against Meloidogyne incognita to know their influence on as mortality and egg hatch inhibition under in vitro condition. The study revealed that all botanicals showed nematode toxicity by killing juveniles (J2) and inhibited egg hatch at 1, 5, 10 per cent concentration at 2, 4, 8, 12 and 24 hours of incubation but among them ten botanicals like A. indica, M. azedarach, P. nigrum, R. communis, M. micrantha, P. betle, O. gratissimum, C. citratus, N. arbor-tristis and P. hydropopper showed strong nematicidal activity and selected for pot experiment. In pot experiment 10 promising botanicals from in vitro test namely A. indica, M. azadarach, P. nigrum, R. communis, M. micrantha, P. betle, O. gratissimum, C. citrans, N. arbor-tristis and P. hydropipper evaluated for their efficacy to manage root-knot nematode problem on brinjal. The study revealed that all the plant extract showed strong nematicidal activity with increasing plant growth parameter of brinjal as compared to untreated control. Among the 10 botanicals the A. indica, M. azadarach, P. nigrum, P. betle and M. micrantha showed strong nematicidal activity against M. incognita, by reducing galls, eggmass/root system and egg/eggmasses with final neamtode population. These plant also increased plant growth parameters like plant height, shoot and root (fresh and dry weight) of brinjal. In the field experiment best five botanicals from pot evaluation such as A. indica, M. azadarach, P. nigrum, P. betle and M. micrantha were selected and evaluated against RKN on brinjal. These five botanicals showed nematicidal activity against M. incognita and improved plant growth parameters of brinjal under field condition as compared to untreated control. But among these A. indica showed maximum plant growth parameters with reduced nematode population.