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Raipur, India

Dwivedi S.K.,Indira Gandhi Krishi Vishwavidyalaya | Meshram M.R.,SRF
Indian Journal of Agronomy | Year: 2014

A field experiment was conducted during rainy (kharif) season of 2011 and 2012 Raipur, Chhattisgarh, to study the effect of customized fertilizer on yield, economic efficiency and nutrient uptake in ‘Mahamaya’ rice (Oryza sativa L.). Amongst the different doses of customized fertilizer (CF) and other nutrient management practices, best result was observed under 150% dose of CF, where it recorded the highest growth and yield-attributing characters, viz. grain yield of rice (7.0 t/ha) with harvest index (HI) (46.39%) and maximum net returns ((formula presented)60,062/ha) as well as benefit: cost ratio (2.31). The uptake of NPK and Zn was also higher under this treatment. Other different doses of customized fertilizer, i.e. 50% and 75% dose of CF and recommended dose of fertilizer (RDF) failed to provide considerable yield advantage and uptake of nutrients in plant as compared to optimum level of customized fertilizer. © 2014, Indian Journal of Agronomy. All right reserved. Source

Kumar R.,SSR Medical College | Sharan N.,SRF
Journal of Medical Biochemistry | Year: 2012

Polymorphism of Insulin Receptor Substrate-1, especially the GGG→AGG (Gly-Arg) substitution at codon 972, is one of the major factors leading to the development of type 2 diabetes mellitus. This defect in IRS-1 causes insulin resistance along with many other consequences. It generally impairs insulin signalling via the phosphadylinositol-3 (PI3)-Kinase pathway. In this study, the heterozygous Gly→Arg substitution at codon 972 of the IRS-1 gene was found in 2 of the 43 control Indian subjects, which is higher than normal when compared with the other population. The prevalence of the codon 972 GGG→AGG substitutions was found to be around 4.6%, which may be due to a predisposition factor. In diabetic subjects, on the other hand, 5 out of 43 showed substitution at codon 972, with a percent prevalence of 14%, establishing the role of the polymorphism of IRS-1 codon in the prevalence of diabetes mellitus. Source

Pundir R.K.,National Bureau of Animal Genetic Resources | Singh P.K.,National Bureau of Animal Genetic Resources | Neelkant,KVK Inc | Sharma D.,SRF | And 2 more authors.
Indian Journal of Animal Sciences | Year: 2013

Surveys were conducted in Almora, Pithoragarh, Rudarpryag, Chamoli and Uttarkashi districts of Uttarakhand state, to characterize the hill cattle of the state. Herd size was larger in Kumaun (2-25) than the Garhwal (2 -5) animal. Cattle were small in size with cylindrical type of body. Body colour varied in different colours and shades i.e. white, gray, black, red/reddish, brown and in different combinations of these 2 or more colours. In Kumanu region brown and black were almost in similar proportion while in Garhwal region black colour predominant. All the biometric traits in the age groups 0-3 months, 3-6 months, 6-12 months and 1-3 years did not reveal significant differences in Kumanu and Garhwal cattle. Cows and bullocks had significant differences in all morphometric traits at both the regions. Hill cattle at Rudarprayag and Chamoli districts were closest while hill cattle at Rudarprayag and Pithoragrah districts had maximum distances followed by hill cattle at Chamoli and Pithoragarh districts and Rudarprayag and Almora districts. Daily milk yield and lactation length were significantly higher in Garhwal cows than Kumanu region. The estimated lactation milk yield was 603 kg (test interval method) and 624 kg (centering date method). The average daily milk yield ranged from 1.61 kg to 2.57 kg. It was also observed that 73% cows stayed up to 13th recording, 50.4% up to 17th recording and 29% up to 20th recording indicating that average lactation length was 6 to 8 months. Blood samples of unrelated hill cattle animals were collected from Garhwal region. DNA was isolated and analyzed by a panel of 21 microsatellite markers. The different genetic diversity parameters showed that population is comparable with the hill cattle of Kumanu region and Hariana cattle. It may be concluded that hill cattle populations at different locations showed uniformity on different parameters with a slight variation. The field recording estimates indicated that there were cows those had high potential for milk production and can be exploiting for genetic improvement of this population. It may thus be considered for recognition as a distinct breed. Source

Sarawgi S.K.,Indira Gandhi Krishi Vishwavidyalaya | Chitale S.,Indira Gandhi Krishi Vishwavidyalaya | Tiwari A.,SRF | Bhoi S.,Indira Gandhi Krishi Vishwavidyalaya
Indian Journal of Agronomy | Year: 2012

A field experiments was carried out at Raipur, during 2005 to 2007 to find out the best source and level of phosphorus with and without phosphorus solubilizing microbial seed treatment for higher growth and yield of soybean [Glycine max (L.) Merr.] and soil P fraction were studied in soil after the harvest of the crop. The soil of experimental area belongs to the sub-group chromustert of the order Vertisol and was neutral to slightly alkaline in reaction, medium in organic carbon, low in available N and available P and high in available K. Application of 30 kg P2O5/ha through rock phosphate (RP) + phosphate solubilizing bacteria (PSB) + Rhizobium inoculation (Rl) + vesicular arbuscular mycorrhizae (VAM) registered significantly higher seed yield, net return and return/rupee invested in P compared to application of 60 kg P2O5/ha through rock phosphate without bio-fertilizers. The P supplied through rock phosphate and inoculated with PSB, Rl and VAM increased the N and P content of soil. PSB and VAM application over respective level of P enhanced the availability of different fraction of inorganic-P in soybean crop. Seed treatment with biofertilizers had their significant effect on microbial population in conjunction with P application. Saloid-P, Ca-P and organic-P and Al-P at 0-15 cm depth and Ca-P and organic-P at 15-30 cm depth contributed significantly for total-P after soybean. Source

Kumar D.,Indian Agricultural Research Institute | Shivay Y.S.,Indian Agricultural Research Institute | Dhar S.,Indian Agricultural Research Institute | Kumar C.,SRF | Prasad R.,Indian Agricultural Research Institute
Proceedings of the National Academy of Sciences India Section B - Biological Sciences | Year: 2013

Plants and most of the microorganisms in the rhizosphere have symbiotic relationships. While rhizodeposits (root exudates having lysates, mucilages) provide the food and influence the structure and number of microorganisms in the rhizosphere, the latter benefit the plants through secretion of a number of growth promoting hormones, organic acids and siderophores that help in increased availability and uptake of nutrients by plants. The interactions of roots and microflora may influence the plant growth positively through a variety of mechanisms, including fixation of atmospheric nitrogen by different classes of proteobacteria, increased biotic and abiotic stress tolerance imparted by the presence of endophytic microbes, and direct and indirect advantages imparted by plant growth-promoting rhizobacteria. The soil microorganisms affect plant growth, and are affected by plant growth, but there is incomplete understanding of their cumulative and interactive effects on plant performance, especially under varied crop production regimes. The diversity of cropping systems in both time and space (by rotations, intercropping, and so on) creates a mosaic of soil resources and niches, which in turn, enhances belowground biodiversity and improves the resilience of the system as a whole. Therefore, agronomic practices such as crop rotation, tillage, addition of organic manures, chemical fertilizers and mulches influence the structure and number of microorganisms in the rhizosphere. However, very little data are available on this subject. There is a need to generate such data to develop a strategy for sustainable agriculture. © 2012 The National Academy of Sciences, India. Source

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