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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 MACHINE VS MANUAL PLUCKING ON QUANTITATIVE AND QUALITATIVE TRAITS OF TEA SHOOTS
    (AAU, Jorhat, 2017-07) Saikia, Jyotishman; Deka, Mridul
    A study on effect of machine vs manual plucking on quantitative and qualitative traits of tea shoot was undertaken during March-November, 2016 in Experimental Garden for Plantation Crops of the department of Tea Husbandry and Technology, AAU, Jorhat-13, Assam. The study was conducted with Randomised Block Design accommodating seven treatment combinations viz. Hand plucking from March to November (T1), One man operated machine plucking from March-November (T2), Two men operated machine plucking from March to November (T3), Hand plucking once from March-June and again from October to November and with one man operated machine plucking in between July-September (T4), Hand plucking from once March-June and again from October to November and two men operated machine plucking in between July-September (T5), Hand plucking from March-June followed by one man operated machine plucking from July to November (T6) and Hand plucking from March-June followed by two men operated machine plucking from July-November(T7). The plucking machine used in the study were Tea Leaf Harvester, Kisan Kraft KK-TH-525 as one man operated and Ochiai Hamono Kogyo 133-100 as two men operated machine. The result of the data on quantitative and qualitative traits including some economic important parameters were grouped into four flushing season. viz. first flush, second flush, rain flush, autumn flush. Quantitatively hand plucking from March-November (full season) gave significantly highest number of plucking round and also recorded the highest green leaf yield. On the other hand the lowest number of plucking round and hence the lowest green leaf yield observed in full season machine plucking of both the make studied. In case of quality parameters the two categories of plucked shoots considered were fine and coarse tea shoots. The highest percentage of fine tea shoots plucked throughout the full cropping season came from hand plucking modes. Two men operated machine when used for full season recorded the lowest fine shoots. The coarse plucked tea shoots which indicate poor quality accounted for the highest percentage in case of machine plucking for the full season irrespective of the number of operators involved. With regard to dormancy index both manual plucking and machine plucking did not influence it significantly during first flush and second flush cropping season. However the later recorded higher value of dormancy index compared to the former ones as the cropping season advanced to rain flush and autumn flush. The machine plucking varied significantly the time required to complete the operation to the lowest value while the manual hand plucking took the highest time, Morever one man operated machine plucking involved the lowest man day throughout the full season of plucking. In respect the cost of plucking for full season the one man operated machine accounted for 50.24% of full season manual plucking. The two men operated machine incurred higher percentage of cost compared to the one man operated ones accounted for 71.37% of full season manual plucking.