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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
    Effect of different artificial food on the growth and development of honeybee, Apis cerana (Hymenoptera : Apidae)
    (AAU, Jorhat, 2017-07) Borah, HEMI; Deka, M. K.
    Experiment was conducted during 2016 in the Apiary and Apiculture Laboratory, Department of Entomology, AAU, Jorhat to see the “Effect of different artificial food on the growth and development of honeybee, Apis cerana (Hymenoptera: Apidae)”. It was found that the colony strength was found to be maximum (6.50±0.36) and (7.25±0.26) in the treatment 5 (Soybean flour + Sugar solution + Yeast + Vitamins) and lowest was found to be (5.57±0.58) and (6.30±0.82) at treatment 7 that is sugar solution (Control) after 7 and 15 days respectively. The highest egg area (20.22±1.79cm²) and (24.54±1.43cm²) was observed in the treatment 5 and lowest was found to be (16.26±1.97cm2) and (20.32±1.16cm²) at treatment 7 after 7 and 15 days respectively. Likewise, the maximum larval area (17.19±1.68cm²) and (20.35±0.85cm²) was observed in the treatment 5 and minimum was found to be (11.45±0.42cm2) and (13.39±1.51cm²) at treatment 7 after 7 and 15 days respectively. And the highest pupal area (17.62±1.10cm²) and (24.34±0.58cm²) was observed in the treatment 5 and lowest was found to be (11.24±0.57cm²) and (18.22±1.13cm²) at treatment 7 after 7 and 15 days respectively. The maximum pollen area was observed after 7 days (9.32±2.09 cm²) and 15 days (14.49±1.12cm²) in treatment 5 and lowest was found to be (5.48±1.43cm²) after 7 and (8.23±0.99cm²) after 15 days at treatment 7. The highest honey hoarding was observed after 7 days and 15 days of treatment in treatment 5 are (15.10±0.57cm²) and (22.97±1.09cm²) and lowest was found to be (10.96±0.04cm²) and (15.40±0.24cm²) at treatment 7 respectively. The highest length of larvae was observed (0.67±0.02cm) after 5 days of treatment in treatment 5 and lowest was found to be (0.50±0.10cm) at treatment 7. The maximum breadth of larvae was observed (0.35±0.04cm) after 5 days of treatment in treatment 5 and lowest was found to be (0.28±0.10cm) at treatment 7. The highest weight of larvae (0.33±0.02gm) was also observed in treatment 5 after 5 days of treatment and lowest was found to be (0.27±0.02gm) at treatment 7. The maximum length of pupae (1.00±0.06cm) was observed after 12 days of treatment in treatment 5 and minimum was found to be (0.88±0.06cm) at treatment 7. The highest breadth of pupae (0.46±0.06cm) was observed after 12 days of treatment in treatment 5 and lowest was found to be (0.39±0.06cm) at treatment 7. Likewise, the highest weight of pupae (0.36±0.03gm) was observed after 12 days of treatment in treatment 5 and lowest was found to be (0.30±0.02gm) at treatment 7. The enemies occurred in the colonies during the year were wasps, waxmoth, ants, lizard and cockroach. The diseases found in the colonies during observation were Thaisac brood and Nosema. The lowest larval mortality was observed (0.10±1.00%) after 5 days of treatment in treatment 5 and 3 and highest (0.67±0.58%) was found at treatment 7. The minimum pupal mortality (1.26±1.15%) and (0.23±1.00%) was observed in treatment 5 and maximum was found to be (1.67±1.00%) and (0.59±1.15%) at treatment 7 after 7 and 12 days of treatment respectively. However lowest adult mortality was observed (1.33±0.58%) and (0.56±0.58%) after 7 and 15 days of treatment in treatment 5 and highest was found to be (1.67±1.15%) and (0.67±0.58%) at treatment 7 respectively. The various meteorological factors viz. temperature, relative humidity and rainfall influenced the brood area, weight of larvae and pupae. Maximum temperature and maximum relative humidity showed positive correlation with brood area, weight of larvae and pupae. On the other hand, minimum temperature, minimum relative humidity and rainfall showed negative correlation with brood area, weight of larvae and pupae.