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Bikaner, India

Swami Keshwanand Rajasthan Agricultural University is an agricultural university located in Bikaner in the Indian state Rajasthan. University, formerly a part of the Mohanlal Sukhadia University, Udaipur and became a separate entity on 1 August 1987. The University consists of six colleges and teaching is split between two campuses, one 45 km from Jaipur in Jobner and the other in Bikaner.The constitute colleges include:The College of Agriculture, BikanerThe College of Home Science, BikanerInstitute of Agribusiness Management, BikanerAcademic Staff College cum Distance Education Centre, BikanerS.K.N. College of Agriculture, Jobner College of Agriculture, Lalsot The university is authorized to provide instruction in Agriculture and Allied science which include Horticulture, Veterinary & Animal science, Home Science and Agri-Business Management. It has also been authorized in other fields of agricultural learning, which the University may deem fit. It is empowered to maintain academic institutions, dealing with agriculture, veterinary and animal science, home science, agri-business management, etc., to carry out instruction in these faculties, hold examinations, and confer degree, diplomas, pertaining to professional qualifications. Wikipedia.


Khichar V.,University of Rajasthan | Kataria A.K.,University of Rajasthan | Sharma R.,Rajasthan Agricultural University
Comparative Clinical Pathology | Year: 2014

Bovine mastitis caused by Staphylococcus aureus is a worldwide disease of high economic significance. These organisms possess many virulence factors allowing them to evade host immune system. In the present study, 28 S. aureus isolates from milk obtained from Holstein-Friesian (H-F) crossbred and Rathi (a native breed) cattle with clinical mastitis were characterized for their two virulence-associated genes: coa and spa. All the isolates were confirmed genotypically by 23S rRNA ribotyping in which a species specific amplicon of 1,250 bp was obtained. Polymorphism was recorded in coa and spa genes. The coa gene produced one amplicon in each isolate either of 510, 600, 710 or 850 bp size with more variability observed in the Rathi isolates. The AluI restriction endonuclease generated three and five RFLP patterns with isolates from H-F crossbred and Rathi cattle, respectively. The RFLP patterns obtained from similar amplicons in isolates from two breeds did not differ. PCR amplification of the X-region for spa gene yielded amplicons of seven different sizes: 206, 243, 262, 277, 292, 306 and 339 bp with calculated number of 7, 8, 9, 10, 10, 11 and 12 bp repeats, respectively indicating presence of highly pathogenic strains. Among all the spa types, four were common to both animal groups, one was unique to H-F crossbred cattle and two were unique to Rathi cattle. © 2012 Springer-Verlag London. Source


Shavrukov Y.,University of Adelaide | Gupta N.K.,Rajasthan Agricultural University | Miyazaki J.,University of Adelaide | Baho M.N.,University of Baghdad | And 4 more authors.
Functional and Integrative Genomics | Year: 2010

Previous work identified the wild barley (Hordeum vulgare ssp. spontaneum) accession CPI-71284-48 as being capable of limiting sodium (Na+) accumulation in the shoots under saline hydroponic growth conditions. Quantitative trait locus (QTL) analysis using a cross between CPI-71284-48 and a selection of the cultivated barley (H. vulgare ssp. vulgare) cultivar Barque (Barque-73, a moderate Na+ excluder) attributed the control of the Na+ exclusion trait from CPI-71284-48 to a single locus on the short arm of chromosome 7H, which was named HvNax3. The locus reduced shoot Na + accumulation by 10-25% in plants grown in 150 mM NaCl. Markers generated using colinearity with rice and Brachypodium, together with the analysis of introgression lines and F2 and F3 families, enabled HvNax3 to be mapped to a 1.3-cM interval. Genes from the corresponding rice and Brachypodium intervals encode 16 different classes of proteins and include several plausible candidates for HvNax3. The potential of HvNax3 to provide a useful trait contributing to salinity tolerance in cultivated barley is discussed. © Springer-Verlag 2010. Source


Kanakala S.,Indian Agricultural Research Institute | Verma H.N.,Jaipur National University | Vijay P.,Rajasthan Agricultural University | Saxena D.R.,RAK College Campus | Malathi V.G.,Indian Agricultural Research Institute
Applied Microbiology and Biotechnology | Year: 2013

Chickpea stunt disease caused by Chickpea chlorotic dwarf virus (CpCDV) (genus Mastrevirus, family Geminiviridae) is the most important biotic stress affecting chickpea crops worldwide. A survey conducted on the incidence of stunt disease clearly revealed high incidence of the disease with severe symptom expression in both indigenous and imported genotypes. To manage the disease in a sustainable way, resistant genotypes need to be bred by adopting objective and precise assessment of the disease response of chickpea genotypes. At present, evaluation of CpCDV resistance is conducted on the basis of natural infection in the field, which is bound to be erroneous due to vagaries in vector population. To circumvent the above problems, we devised an agroinoculation technique that involves the delivery of viral genomic DNA through Agrobacterium tumefaciens. An objective scoring system assigning quantitative value to different symptoms has been evolved to assess the response of chickpea genotypes to CpCDV inoculation. Using the inoculation and scoring techniques, we screened 70 genotypes, which helped in differentiating field resistance that is more due to resistance to vector feeding than resistance to the virus. © 2013 Springer-Verlag Berlin Heidelberg. Source


Reddy M.C.,Rajasthan Agricultural University
International Agricultural Engineering Journal | Year: 2013

Precision agriculture is an integrated agricultural management strategy where farmers can adjust input use and cultivation methods - including seed, fertilizer, pesticide, and water application, varietals selection, planting, tillage, harvesting - according to varying soil, crop and other field conditions. Advances in telecommunications technologies continue to help make farm life easier and to improve production efficiencies. The convergence of sensing, computing and communication technologies for agricultural applications has led to the creation of a new technology - Agricultural Infotronics Systems (AIS), which is a framework of wirelessly networked on-farm production data management systems to collect, process, and transmit the "ready-to- use" site-specific production data to the user on the machinery while performing the field operation. Thus, telecommunication technology is the backbone of precision agriculture. Precision farming involves integrated technologies such as GPS, GIS, remote sensing, and Variable Rate Technology (VRT), crop models, yield monitors and precision irrigation. In brief, precision agriculture refers to tailoring crop and soil management practices according to variation in crop and soil conditions within each field. This paper describes shortly about precision farming and its management. Source


Kakani R.K.,National Research Center on Seed Spices | Sharma Y.,Rajasthan Agricultural University
Sabrao Journal of Breeding and Genetics | Year: 2010

The genetics of yield and related traits was studied in barley (Hordeum vulgare L.) by means of 9 x 9 half diallel (F1 and F2) progenies under four diverse environments. Additive-dominance model was fitted only for days to heading, plant height, flag leaf area, spike length, number of grains per spike, test weight and grain yield per plant for different environments and generations. Both additive (D) and dominance (H1 and H2s) components were significant for all the traits studied. However, the relative magnitude of dominance components was observed to be higher than additive components, which indicated the preponderance of dominance components in controlling the inheritance of characters under study. The (H1/D)1/2 values revealed the existence of over dominance for flag leaf area, number of grains per spike and test weight in F1 generation only, indicating the existence of over dominance. The values of 'F' exhibited an excess of dominant alleles in the parents for days to heading, flag leaf area, spike length, number of grains per spike and test weight. The environmental component 'E' was significant for most of the traits. The average degree of dominance (H1/D)1/2 was in range of over dominance. The ratio of H2/4H1 indicated symmetrically distribution of the genes for flag leaf area, spike length, number of grains per spike, test weight and grain yield per plant in some generations and environments. The value of h2/ H2 was observed less than one in days to heading, plant height, flag leaf area, number of grains per spike, test weight and grain yield per plant in different environments and traits, suggesting the role of dominant genes in controlling the inheritance of these traits, whereas, one gene or group of genes was controlled the inheritance of the remaining characters. The heritability estimates were relatively low to moderately high magnitude for different characters. Heritability estimates were high in F1 in comparison to F2, indicating the degree of heritability was influenced by the environment and generations. Thus, non-conventional breeding methods like recurrent selection by way of inter-mating most desirable segregants followed by selection or diallel selective mating or bi-parental mating in early segregating generations may be followed for improvement in barley. Source

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