Thumbnail Image

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.


Search Results

Now showing 1 - 1 of 1
  • ThesisItemOpen Access
    (AAU, Jorhat, 2019-07) KHANIKAR, MADHURYYA MOHAN; Sarmah, Bhaswati
    Characterization of cultivars, establishment of varietal identity and genetic purity of the seed lots are crucial for varietal improvement, varietal protection and seed production. A rapid and reliable technique to verify the identity and to assess the purity of seed lots is important in seed quality assurance program. So, the present study was formulated to test 50 local varieties for genetic purity and group them based on the morphological similarities and response to various chemicals. The mean performance table of varieties based on quantitative traits revealed significant variation among the varieties for the quantitative traits. Based on the grain morphology, Black Rice (B), Nekeru and Pare were found to have long slender type of grain shape while Purubenu, Kola Konamasuri, Jeera Joha, Jengoni, Samraj, Vaboli Joha, Banki Sali, Basudev Bao and Bamkokua exhibited medium slender grain shape and Black Rice (G), Malbhog and Til Bora on the other hand, depicted basmati type grain shape. These three categories are highly preferred by the consumers due to its pleasant appearance. On the basis of chemical test, Bao, Sokua Bao, Samraj & Boga Ahu exhibited unique red colouration in the NaOH test. As per the phenol & modified phenol test, unique black colour was exhibited by Purubenu, Maniki Madhuri Joha, Joha Big and Kola Amona. The cluster analysis based on grain morphology revealed 4 predominant clusters, while based on chemical data, 2 distinct groups were obtained. Cluster I of the chemical data comprised of only one variety i.e. Sokua Bao while cluster II contained all the other varieties. This cluster could be further divided into 2 sub-clusters. The sub-cluster 1 comprised of all the Joha varieties except Jeera Joha while the sub cluster 2 encompassed all the Bao and the Black rice varieties indicating the two distinct amylose ranges. The most similar varieties with regards to the amylose content were Bao (9) and Pare. 16 varieties out of the total 50 varieties were found to have unique characters based on the morphological, chemical and biochemical parameters. These varieties are - Purubenu, Maniki Madhuri Joha, Joha Big, Kola Amona, Pare, Malbhog, Nekeru, Til Bora, Sokua Bao, Bao (9), Samraj, Boga Ahu, Black rice (B) and Black rice (G).