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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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Subject: Crop Physiology × Author: Borah, Horipriya × Start date: 2015 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    MORPHO-PHYSIOLOGICAL PERFORMANCE OF SOME LENTIL GENOTYPES IN RESPONSE TO ORGANIC MANURE SOURCES
    (AAU, Jorhat, 2018-07) Borah, Horipriya; Kalita, P.
    A field experiment was conducted during the rabi season of 2017-18 at ICR farm (organic block) of AAU, Jorhat-13. Five lentil genotypes were evaluated for their morpho-physiological performance in response to three different sources of organic manure. The genotypes were HUL-57, SLC-102, SLC-101, KLS-218 and PL-406 which were collected from Regional Agricultural Research Station, AAU, Shillongani, Nagaon and the souces of organic manure were FYM, vermicompost and poultry manure. The recommended package of practices for lentil under Assam situation were followed for raising the crop . The recomended levels of N, P and K were supplied with various organic manure sources. Significant variations were recorded among the genotypes as well as sources of organic manure at both the stages of observation in relation to the various traits viz plant height, leaf biomass, root biomass, whole plant biomass. The traits viz. root volume, root surface area, nodules number, stem biomass ,reproductive biomass, in-vivo leaf nitrate reductase activity, total chlorophyll content of leaf, lipid peroxidation, leaf nitrogen content, leaf phosphorus content showed significant variation due to genotypes as well as organic manure sources at active pod filling stage only. At harvest number of pods per plant, 100 grain weight, grain yield and harvest index also exhibited significant variation due to genotypes as well as sources of organic manure.The interaction between genotypes and manure sources were found to be significant for the traits viz leaflet number per plant for both the stages of observation and stem biomass at 50% flowering and leaf proline content at active pod filling stage. Highest values of these traits were recorded in the plants supplied with vermicompost followed by poultry manure and FYM except the trait of lipid peroxidase activity which showed just the opposite trend. The genotype KLS-218 with vermicompost treatment recorded the highest plant biomass and grain yield at harvest. This increase in grain yield was 9.1% and 6.8% with vermicompost over FYM and poultry manure respectively. The highest grain yield in KLS-218 may be attributed to the higher values in the traits like relative leaf water content, leaflet no per plant, nodule no per plant, leaf biomass, stem biomass, reproductive biomass, whole plant biomass, nitrate reductase activity, total leaf chlorophyll content, proline content, leaf nitrogen content, leaf phosphorus content, no of pods per plant, no of seeds per pod, 100 grain weight and harvest index. From the correlation study positive and significant correlation were recorded between seed yield and relative leaf water content (0.772**), seed yield and leaflet no at 50% flowering(0.887**), seed yield and leaflet no at active pod filling stage (0.790**, seed yield and nodule no (0.911**), seed yield and leaf biomass at 50%flowering (0.891**), seed yield and leaf biomass at active pod filling stage (0.854**), seed yield and stem biomass at 50%flowering (0.909**), seed yield and stem biomass at active pod filling stage (0.908**), seed yield and whole plant biomass at 50%flowering (0.935**), seed yield and whole plant biomass at active pod filling stage (0.967**), seed yield and reproductive biomass (0.924**), seed yield and nitrate reductase activity (0.883**), seed yield and total chlorophyll content (0.873**), seed yield and proline content (0.895**), seed yield and leaf nitrogen content (0.923**), seed yield and leaf phosphorus content (0.878**), seed yield and no of pods per plant(0.919**), seed yield and no of seeds per pod(0.892**), seed yield and 100 grain weight (0.907**) and seed yield and harvest index (0.979**). The genotype KLS-218 registered highest benifit cost ratio i.e 1.43, 1.52, 1.46 for FYM, vermicompost and poultry manure respectively and this genotype can be recomended for Assam condition with the supply of N,P and K through vermicompost.