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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
    VASE LIFE AND QUALITY OF GLADIOLUS (Gladiolus grandiflora) AS INFLUENCED BY POSTHARVEST CHEMICAL APPLICATIONS
    (AAU, Jorhat, 2018-07) NATH, DEB JYOTI; Das, Kaushik
    An investigation was carried out during October, 2016 to March, 2017 in the Department of Crop Physiology, Assam Agricultural University, Jorhat-13, to evaluate the effects of different pulsing treatments and holding solutions on vase life and quality of cut gladiolus spikes. In one experiment the cut gladiolus spikes were pulsed with different concentrations of salicylic acid (50ppm, 100ppm and 150ppm), benzyl adenine (50ppm, 100ppm and 150ppm) and nano silver (5ppm, 10ppm and 15ppm) under laboratory condition. Recorded data revealed that moisture content, fresh and dry weights of cut gladiolus spikes were positively influenced by the pulsing treatments. Amount of solution uptake, transpirational water loss and relative leaf water content recorded in cut gladiolus spikes were also altered significantly by the applied pulsing agents. Total carbohydrate content of petals, chlorophyll content of sepals, anthocyanin content of petals and vase life of cut gladiolus spikes were affected appreciably by pulsing treatments in a concentration dependent manner. Among the applied treatments, salicylic acid 150ppm was found to be the best in increasing the vase life of cut gladiolus spikes. In another experiment cut gladiolus spikes were treated with different concentrations of salicylic acid (50ppm, 100ppm and 150ppm), benzyl adenine (50ppm, 100ppm and 150ppm) and nano silver 10ppm as holding treatments under laboratory condition. Combined effects of nano silver (10ppm) with salicylic acid (50ppm, 100ppm and 150ppm) and benzyl adenine (50ppm, 100ppm and 150ppm) were also evaluated. Recorded data revealed that physiological and biochemical parameters in terms of moisture content, fresh and dry weights, amount of solution uptake, transpirational water loss, relative leaf water content, total carbohydrate content of petals, chlorophyll content of sepals, anthocyanin content of petals and vase life of cut gladiolus spikes were increased by different holding treatments. It was further observed that nano silver application significantly enhanced the efficacy of salicylic acid and benzyl adenine in increasing the vase life of cut gladiolus spikes. Among the different holding solutions, salicylic acid 150ppm + 10ppm nano silver + 4% sucrose exhibited the longest vase life (13.65 days). Results of this experiment confirmed that holding treatments exhibited better results compared to pulsing treatments in increasing the vase life of cut gladiolus spikes.