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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
    Growth, development and quality flower production of Lilium in hydroponic systems
    (2018) Baruah, Luna; Bora, Sunil
    An experiment entitled “Growth, development and quality flower production of Lilium in hydroponic systems” was carried out in the experimental site of Department of Horticulture, Assam Agricultural University, Jorhat during 2017 and 2018. There were two systems viz., aggregate system and water culture. In aggregate system sand, coco peat and perlite were used as the growing media and two concentrations of nutrient solution having EC 1.0 dS/m and 1.4 dS/m were used; which was laid out in factorial completely randomized design with four replications. On the other hand in water culture three nutrient solutions at EC 1.0 dS/m, 1.4 dS/m and 1.8 dS/m were used and it was laid out in completely randomized design with seven replications. The study revealed that coco peat resulted in maximum leaf area (19.72 cm2), leaves per plant (35.84), plant height (64.41 cm), buds per plant (3.15), flower diameter (21.51 cm), fresh weight of flower (5.54 g), dry weight of flower (0.57 g), fresh weight of roots (19.73 g), root length (26.14 cm), roots per plant (119.07), diameter of mother bulb (4.89 cm), daughter bulbs per plant (3.03) and shelf life (9.81 days in water). Maximum total chlorophyll content (2.76 mg g-1 FW) was recorded in perlite. Minimum days to appearance of bud (34.38) and days to full bloom from planting (84.09) was recorded in coco peat. Nutrient solution of EC at 1.0 dS/m was found to be significantly superior to EC at 1.4 dS/m in all the growth as well as floral parameters. Interaction effect of growing media and nutrient solution was found to be significant and T2 x E1 (coco peat + EC at 1.0 ds/m) was found to be the best treatment combination. In water culture, EC at 1.0 dS/m resulted in maximum leaf area (19.10 cm2), leaves per plant (38.14), plant height (66.67 cm), buds per plant (3.14), flower diameter (20.97 cm), fresh weight of flower (6.11 g), dry weight of flower (0.54 g), fresh weight of roots (18.86 g), number of roots per plant (79.40), diameter of mother bulb (4.81 cm), shelf life (9.74 days in water), leaf relative water content (77.98%) and total chlorophyll content (2.54 mg g-1 FW). Minimum days to appearance of bud (35.02 days) and days to full bloom (84.05 days) was recorded in EC at 1.0 dS/m. Economics of production revealed that highest benefit cost ratio of 1.20 was recorded in treatment combinations T2xE1 (coco peat + EC at 1.0 dS/m) and T2xE2 (coco peat + EC at 1.4 dS/m). Therefore, aggregate system (coco peat as growing media) was found to be the best hydroponic system and EC of 1.0 dS/m as the best nutrient dose for quality flower production of Lilium.