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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
    MANAGEMENT OF FRUIT ROT OF BRINJAL WITH FUNGAL BIO-FORMULATIONS
    (AAU, Jorhat, 2019-07) Sultana, Fahnaz; Senapoty, Daisy
    Fruit rot of brinjal is one of the most destructive disease causing severe damage to the fruits in the field and considerable losses during storage, transit and marketing.The causal fungus of fruit rot of brinjal was identified as Phomopsis vexans in the mycology laboratory, Department of Plant Pathology, AAU, Jorhat. The present investigation aimed at managing the disease by using few liquid fungal bio- formulations in in vitro and pot condition. Three bio-formulations viz. Org-Trichojal (Trichoderma harzianum), Org- Beauverijal (Beauveria bassiana), Org- Metajal (Metarhizium anisopliae) were tested alone and in combination with each other and Carbendazim (0.1%) was used as fungicidal check against Phomopsis vexans by ‘poisoned food technique’. Carbendazim 0.1% recorded the highest inhibition of mycelial growth (94.11%) followed by combination of Org-Trichojal + Org-Beauverijal + Org-Metajal (91.44%), Org-Trichojal + Org-Beauverijal (79.11%), Org-Trichojal + Org-Metajal (78.22%), Org-Trichojal (77.78%), Org-Beauverijal + Org-Metajal (76.22%), Org-Beauverijal (74.67%) and Org-Metajal (66.67%), respectively over the control. Amongst the fungal bio-formulation treatments, the effect of Org-Trichojal + Org-Beauverijal + Org-Metajal was found to be significantly superior over rest of the treatments. Therefore, this treatment was selected for further studies. The bio- formulation was evaluated for their effect on seed germination, root length, shoot length and seedling vigour of brinjal and compared with Carbendazim (0.1%) and control. Seed treated with Carbendazim resulted highest values in all the parameters followed by seed treated with bio-formulation over control. In pot culture condition, bio- formulation was also evaluated for their effect in managing the disease and was compared with Carbendazim (0.1%). Seed treatment + foliar spray with Carbendazim gives the lowest disease incidence and percent disease index (8.03% and 6.13%). This was followed by seed treatment + soil treatment + foliar spray with the bio-formulation (8.06% and 7.19%) over control which were statistically at par in their effect. Highest yield (1.45 kg/plant) was recorded in seed treatment + foliar sprays with Carbendazim followed by seed treatment + soil treatment + foliar spray with the bio-formulation (1.40 kg/plant). Amongst the bio-formulation treatments lowest yield was recorded in foliar spray with the bio-formulation (0.85 kg/plant). Use of bio-formulation in different method of application were found to be most effective and have greater proposition in managing fruit rot disease of brinjal caused by Phomopsis veaxns, but it ranked behind the chemical fungicide.