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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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20171
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Subject: Plant Breeding × Author: HANSEPI, JIRKA × End date: 2017 × Start date: 2017 × Type: Thesis ×
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    ThesisItemOpen Access
    EFFICACY OF SOME PLANT PRODUCTS AGAINST PULSE BEETLE, Callosobruchus chinensis (COLEOPTERA; BRUCHIDAE) ON STORED GREEN GRAM SEED
    (AAU, Jorhat, 2017-07) HANSEPI, JIRKA; Goswami, M. M.
    An experiment was conducted during 2016-17 in the laboratory of National Seed Project (crops), Assam Agricultural University, Jorhat to evaluate the efficacy of some plant products against pulsebeetle, Callosobruchuschinensisand their effects on seed viability and seedling vigour in green gram seed under laboratory storage conditions. Greengram seeds are infested by various storage pest among which Callosobruchuschinensis is the most important and common of all bruchid pest in India. Although, synthetic pesticides are effective in controlling the pest, environment and health hazards of these chemicals are of increasing concern. The study assessed efficacy ofnine botanical products namely Neem seed kernel powder, Basil leaf powder, Black pepper powder, Sweet flag rhizome powder, Turmeric powder, Ginger powder, Sesamum oil, Groundnut oil, Mustard oil were used in the experiment with malathion 5% dustas check. The different observations viz., per cent germination, seedling vigour index, per cent moisture content, per cent insect infestationwere evaluated at 0, 15, 30, 60, 120 and 180 days after treatment of the seeds stored in porous HDPE bags. The results revealed that most of the treatments were significantly superior to untreated check. The treated check i.e.malathion 5% dust(per cent germination; 93.33, seedling vigour index; 1404.60, per cent infestation; nil, per cent moisture content; 11.94) @ 2.5g per kgwas found to be the best treatment followed by sweet flag rhizome powder (per cent germination; 91.33, seedling vigour index; 1355.06, per cent infestation; 0.75, per cent moisture content; 11.99), vegetable oils such as mustard oil, groundnut oil, sesamum oiland black pepper powder after six months of storage. For evaluation of insecticidal activity of different plant products against pulse beetle,Callosobruchuschinensis in green gram seeds stored in glass jars, the different observations viz., per cent infestation, per cent weight loss, per cent germination, seedling vigour index were evaluated at 15, 30, 60 and 120 days after the release of insects. Here, also malathion 5% dust (per cent germination, 93.66), (seedling vigour index, 1528.96), (per cent infestation, nil), (per cent weight loss, 0.09)@ 2.5g per kg was found to be the best treatment as no infestation was recorded upto 120 days. The results were in conformity with the seeds stored in HDPE bag in case of other plant products. The present findings revealed that sweet flag rhizome powder, vegetable oils and black pepper powder can be used as an alternative to chemical insecticides against pulse beetle, Callosobruchuschinensis in stored green gram seed.