Mayang Imphal, India

Central Agricultural University
Mayang Imphal, India

Central Agricultural University is an agricultural university at Iroisemba,Imphal in the Indian state of Manipur.The Central Agricultural University was established by an act of Parliament, the Central Agricultural University Act 1992 . The Act came into effect on 26 January 1993 with the issue of necessary notification by the Department of Agricultural Research and Education , Government of India. The university became functional with the joining of the first vice-chancellor on 13 September 1993.The jurisdiction of the university extends to six North-Eastern Hill States: Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Sikkim and Tripura. It offers undergraduate teaching and postgraduate teaching , research and extension activities at College of Veterinary science & Animal Husbandry, Selesih, Aizawl, Mizoram. It offers B.Sc. every year and M.Sc. in Agronomy, Plant Pathology, Horticulture, Plant Breeding and Genetics, Soil Science and Agricultural Chemistry, and Entomology. It imparts teaching in the field of horticulture, fisheries, Agricultural Engineering, and Food Technology in various constituent colleges spanning north-eastern states. Wikipedia.

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Lahiri B.,Central Agricultural University
Ecology, Environment and Conservation | Year: 2016

Access to the right information at the right time in the right format from the right source for Garo tribal farmers may increase the agricultural production in Garo Hills. In this backdrop, agricultural information seeking behaviour of Garo tribal farmers put under scanner in an exploratory research design with the objectives to explore the various sources of agricultural information, constraints to access them, general and crop-wise information need of the Garo farmers and to enumerate the information seeking behaviour of the Garo farmers and its relation with socio-economic and socio-psychological variables. The study has been conducted by interviewing 150 respondents through semi-structured interview schedule, who have been selected through proportionate random sampling method from two districts of Garo Hills. Information Seeking Behaviour has been enumerated as dependent variable and measured with Information Seeking Behaviour Index developed during the study. Different socio-economic and socio-psychological variables have been selected as causal variables and measured by the scales developed by different earlier researchers, which have been modified during pilot study. Study reveals that information seeking behaviour of Garo farmers is traditional in nature and it also suggests that increase in educational status, material possession, production orientation, market orientation, risk orientation, economic motivation and farmer's attitude have positive and significant bearings in the Information Seeking Behaviour of the farmers. Thus, the traditional approaches of information seeking behaviour is needed to be improved by meticulous approaches of ICT mediated extension to reach resource poor Garo tribal farmers in the far flung areas of Garo Hills. Copyright © EM International.

Singh D.,Central Agricultural University | Choudhary A.K.,Indian Institute of Pulses Research
Plant Breeding | Year: 2010

An understanding of the inheritance of aluminum (Al) tolerance is important to breed for Al tolerant genotypes of pea (Pisum sativum L.). Therefore, an investigation was undertaken to infer genes governing Al tolerance in pea. To study the inheritance of Al tolerance, tolerant lines 'Azad P1' and 'PC-55-11-1-2' were crossed with sensitive lines 'PC-493-5' and 'PSM-2'. Parental, F 1, F 2 and backcross generations were grown in a nutrient solution containing 30 ppm of Al for haematoxylin staining and root regrowth and classified for tolerance by staining of root tips and root regrowth. The F 1 hybrids responded similarly to the tolerant parents indicating dominance of Al tolerance over sensitivity. Segregation for tolerance vs. sensitivity in F 2 fitted well with the 3-1 ratio expected for a single gene. The backcrosses involving dominant parents showed the dominant reaction on all the plants while those involving susceptible parents segregated into one tolerant to one sensitive ratio. Experimental results showed that Al tolerance is a monogenic dominant trait that can be easily transferred to desirable lines through backcross breeding programme. © 2010 Blackwell Verlag GmbH.

Sanghera G.S.,University Of Kashmir | Wani S.H.,Central Institute of Temperate Horticulture | Hussain W.,University Of Kashmir | Singh N.B.,Central Agricultural University
Current Genomics | Year: 2011

Plants respond with changes in their pattern of gene expression and protein products when exposed to low temperatures. Thus ability to adapt has an impact on the distribution and survival of the plant, and on crop yields. Many species of tropical or subtropical origin are injured or killed by non-freezing low temperatures, and exhibit various symptoms of chilling injury such as chlorosis, necrosis, or growth retardation. In contrast, chilling tolerant species are able to grow at such cold temperatures. Conventional breeding methods have met with limited success in improving the cold tolerance of important crop plants involving inter-specific or inter-generic hybridization. Recent studies involving full genome profiling/ sequencing, mutational and transgenic plant analyses, have provided a deep insight of the complex transcriptional mechanism that operates under cold stress. The alterations in expression of genes in response to cold temperatures are followed by increases in the levels of hundreds of metabolites, some of which are known to have protective effects against the damaging effects of cold stress. Various low temperature inducible genes have been isolated from plants. Most appear to be involved in tolerance to cold stress and the expression of some of them is regulated by C-repeat binding factor/ dehydration-responsive element binding (CBF/DREB1) transcription factors. Numerous physiological and molecular changes occur during cold acclimation which reveals that the cold resistance is more complex than perceived and involves more than one pathway. The findings summarized in this review have shown potential practical applications for breeding cold tolerance in crop and horticultural plants suitable to temperate geographical locations. ©2011 Bentham Science Publishers Ltd.

Muzaddadi A.U.,Central Agricultural University | Basu S.,C I F E
Indian Journal of Traditional Knowledge | Year: 2012

A survey was carried out in two states of Northeastern India namely Assam and Tripura to study the indigenous technology of Shidal (a pasty and solid, semi fermented fishery product) preparation, indigenous fish oil extraction method and shidal recipe preparation techniques and data were collected from the experts belonging to ethnic tribes, ethnic Bengali and Muslims communities. The skeletal method of shidal preparation had minor differences between the localities. The village fishers followed a method where semi-dried local varieties of Puntius spp. were utilized, whereas the commercial producers utilized the fully dried Puntius spp mostly imported from other Indian states, as the raw material. Moistened fish are tightly packed into an oil processed earthen pot and sealed almost airtight. Fish are allowed to get fermented anaerobically by some resident bacteria for about 6 months. Mainly the fish protein and lipid are broken down to some peptides, amino acids, fatty acids, indole, sketole, etc. producing a strong characteristic odour of shidal.

Kamilya D.,Central Agricultural University | Baruah A.,Central Agricultural University
Reviews in Fish Biology and Fisheries | Year: 2014

Epizootic ulcerative syndrome (EUS) is one of the most important diseases affecting more than 100 species of wild and cultured finfish. EUS was first reported in farmed ayu (Plecoglossus altivelis) from Japan in 1971 and has since then spread across different countries of four continents including Asia, Australia, North America and Africa. The spread of the disease, especially in Asia-Pacific region and Africa has led to substantial damage to the fish resources and livelihood of the fish farmers. No reports are available confirming the outbreak of the disease from Europe and South America. The latest outbreak of EUS has been reported from Canada in a new susceptible species brown bullhead, Ameiurus nebulosus. It seems that the disease has potential to spread further, owing to the epizootic nature of the disease and broad susceptible host range. Considering the global importance of this disease, this review provides the current status of understanding about the etiology, process of diseases development, species affected, diagnostic methods as well as control and preventive measures, in light of the historical developments in those areas. © 2013 Springer Science+Business Media Dordrecht.

Raj S.,Central Agricultural University
Journal of Agricultural Education and Extension | Year: 2013

Purpose: This case study deals with the implementation methodology, innovations and lessons of the ICT initiative in providing agricultural extension services to the rural tribal farming community of North-East India. Methodology: This study documents the ICT project implementation challenges, impact among farmers and briefly indicates lessons of the e-agriculture project. Findings: The e-agriculture prototype demonstrated that the Rs. 2,400 (USD 53) cost of the extension services to provide farm advisory services was saved per farmer per year, expenditure was reduced 3.6 times in comparison with the conventional extension system. Sixteenfold less time was required by the farmers for availing the services and threefold less time was required to deliver the services to the farmers compared with the conventional extension system. However, this article argues that in less developed areas, information through ICTs alone may not create expected development. Along with appropriate agricultural information and knowledge, field demonstrations and forward (farm machinery, manure, seeds) and backward linkages (post-harvest technology and market) need to be facilitated with appropriate public-private partnership between knowledge and other rural advisory service providers for agricultural development. Practical implications: This article lists a number of practical lessons which will be useful for the successful planning and implementation of e-agriculture projects in developing countries. Original value: This article is a first case study on ICTs for agricultural extension initiatives among the tribal farmers who dominate the less developed North-East India. © 2013 Copyright Wageningen University.

Singh D.,Central Agricultural University
Scientia Horticulturae | Year: 2012

Okra (Abelmoschus esculentus) genotypes 'Parbhani Kranti' and 'Arka Anamika' resistant to Al 3+ were crossed to two aluminium-sensitive genotypes, 'CO-203' and 'Punjab-7' to determine the nature of inheritance of resistance. The parents, F 1, F 2 and F 3 generations were grown in nutrient solution containing 10mg/l Al 3+ for hematoxylin staining of root tips and classified for tolerance. The segregation ratios between the resistant and sensitive genotypes in the F 2 (n=1071) and F 3 (n=335) were 15: 1 and 7: 8:1, respectively. These results indicated that Al 3+ resistance is controlled by two dominant genes. This is the first report of Al 3+ resistance in okra. © 2012 Elsevier B.V.

Wani S.H.,Farm Science Center Hengbung | Singh N.B.,Central Agricultural University | Haribhushan A.,Farm Science Center Hengbung | Mir J.I.,Central Institute of Temperate Horticulture
Current Genomics | Year: 2013

Abiotic stresses collectively are responsible for crop losses worldwide. Among these, drought and salinity are the most destructive. Different strategies have been proposed for management of these stresses. Being a complex trait, conventional breeding approaches have resulted in less success. Biotechnology has emerged as an additional and novel tool for deciphering the mechanism behind these stresses. The role of compatible solutes in abiotic stress tolerance has been studied extensively. Osmotic adjustment, at the physiological level, is an adaptive mechanism involved in drought or salinity tolerance, which permits the maintenance of turgor under conditions of water deficit, as it can counteract the effects of a rapid decline in leaf water potential. Increasing evidence from a series of in vivo and in vitro studies of the physiology, biochemistry, genetics, and molecular biology of plants suggest strongly that Glycine Betaine (GB) performs an important function in plants subjected to environmental stresses. It plays an adaptive role in mediating osmotic adjustment and protecting the sub-cellular structures in stressed plants, protection of the transcriptional and translational machineries and intervention as a molecular chaperone in the refolding of enzymes. Many important crops like rice do not accumulate glycinebetaine under stress conditions. Both the exogenous application of GB and the genetically engineered biosynthesis of GB in such crops is a promising strategy to increase stress tolerance. In this review we will discuss the importance of GB for abiotic stress tolerance in plants. Further, strategies like exogenic application and transgenic development of plants accumulating GB will be also be discussed. Work done on exogenic application and genetically engineered biosynthesis of GB will be listed and its advantages and limitations will be described. ©2013 Bentham Science Publishers.

Saikia D.,Central Agricultural University | Kamilya D.,Central Agricultural University
Fish and Shellfish Immunology | Year: 2012

Three different antigenic preparations from the epizootic ulcerative syndrome (EUS) pathogen Aphanomyces invadans were evaluated as vaccine candidate in catla (Catla catla). Anti-catla enzyme immunoconjugate was prepared after isolating catla immunoglobulin and raising hyperimmune sera against it, in rabbit. Three antigens namely, fungal extract (FE), fungal extract mixed with Freund's incomplete adjuvant (FIA) in a 1:1 (v/v) ratio (FE+A) and extra cellular product (ECP) were prepared and three groups of catla were vaccinated intramuscularly with all these antigens (200μg/fish). Different cellular and humoral immune responses were measured for the entire vaccinated and control group on 0th, 5th, 15th and 25th day post vaccination. Thirty days after the vaccination, the fish were challenged with an A. invadans zoospore dose of 1×10 5ml -1 and mortality and relative percent of survival (RPS) were recorded. Study of cellular immunological parameters including antigen-specific leukocyte proliferation, antigen-specific nitric oxide production and superoxide anion production showed significantly higher (p<0.05) values, in general, on 5th and 15th day post vaccination than the 0th day. Among all the antigenic groups, FE+A showed most significant response compared to the other groups. Among the humoral immune responses, lysozyme activity showed almost similar trend like cellular parameters. Anti-Aphanomyces antibody production was measured by enzyme-linked immunosorbent assay (ELISA) and it was increased with increasing days of vaccination in all the vaccinated groups with the highest observed on 25th day. Among the antigens, FE+A showed the highest antibody production following vaccination. The result of the homologous pathogen challenge study showed reduction in mortality in all the vaccinated groups. However, this reduction was not statistically significant (p>0.05). Increased immune responses and protection have important implications with regard to the control of EUS by vaccination. © 2011 Elsevier Ltd.

Kusre B.C.,Central Agricultural University
Journal of the Geological Society of India | Year: 2016

The North eastern region is characterized by undulating terrain and high rainfall. Such condition creates a situation of floods in the downstream plain areas of Assam. Difficulties in monitoring the data collection of hydrological events (runoff and sediment yield) in the rugged terrain hinders the planning of suitable control measures. To overcome such constraints alternate measures need to be explored and the study of terrain is one such approach. The study of terrain (morphometry) can help in diagnosing the hydrological behavior of any watershed. In the present study morphometric analysis was done to determine the drainage characteristics of Diyung watershed in Kopili river basin using topographic maps and GIS tools. The morphometric analysis indicates high values of stream density (15464), stream length ratio (1.81); Bifurcation ratio (3.66), RHO coefficient (0.49), Stream frequency (5.26 km-2), Drainage density (3.24), indicative of high runoff generation capabilities of the watershed. This high runoff from the watershed is the main reason for floods in the downstream areas. Based on the results, structural and non-structural measures are proposed to mitigate the impacts of flood events. © 2016, Geological Society of India.

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