Browsing by Author "Ranjan, Rakesh"
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ThesisItem Open Access ACCESS OF AGRICULTURAL INFORMATION THROUGH MOBILE IN JHARKHAND(Birsa Agricultural University, Kanke, Ranchi, Jharkhand, 2013) Ranjan, Rakesh; Jha, B.K.Mobile has emerged as important communication media in agricultural extension. A number of initiatives have been undertaken by government and non-government organizations. In Jharkhand the services of Kisan Call Centre and voice mail of IIFCO-Kisan Sanchar Nigam Limited are already going on. Birsa Agricultural University has developed guided SMS. Hence, it was thought prudent to conduct a study on “Access of agricultural information through mobile in Jharkhand” with the specific objectives viz. to study the use of different mobile applications by the farmers, to assess farmers’ preference about different types of media-text ,audio, image and video, to assess the quality of receptivity and applicability of different types of information received through different types of mobile applications, to ascertain association of mobile use ,access of agricultural information through mobile, information application and level of satisfaction in getting agricultural information through mobile with socio-personal and economic characteristics of respondents and to study the constraints associated with application of mobile in agricultural extension. The research design was ex-post facto. To make the study representative, Dumka, Palamu and E. Singhbhum districts were selected from agro climatic zone IV, V & VI respectively. One block each from these districts were selected on the criteria of number of IKSL service user and general agricultural development. Twelve respondents each from IKSL and non-IKSL category were selected. Thus sample size became 90. Fifteen independent variables viz. age, family education, social participation, extension contact, mass media and IT exposure, innovation proneness, attitude towards mobile, annual agricultural income, information needs, knowledge about mobile feature, level of aspiration about mobile, and monthly expenditure on mobile service and four dependant variables viz. mobile use, access of agricultural information through mobile, information application and level of satisfaction in getting agricultural information through mobile were selected which were measured through scales and indices already available or were developed under the study. The data were collected through pre-tested schedules. The collected data were analysed and interpreted through statistical tests like frequency, percentage, mean, correlation and regression. Result indicates that there was no significant difference between IKSL and non –IKSL categories of respondents as far as independent variables are concerned. All the respondents had knowledge and skill about call receiving feature. Nokia 1616 and Nokia 1800 were the predominant mobile sets with the respondents. Mobile use and information application were calculated to be 0.84 and 0.69 respectively. Video was the most preferred media. Most sought after, understood and applied information was disease control. Minimum loss from reception to application was reported in varieties. The selected variables could explain the variability to the extent of 25.5%, 63.0%, 41.6% and 47.4% in mobile use, access of agricultural information through mobile, information application and level of satisfaction in getting agricultural information through mobile respectively. Non-availability of mobile number of source emerged to be the most important constraint. Based on the findings of the study it could be concluded that mobile has the potential to transform the landscape of agricultural extension.ThesisItem Open Access Environmental and ameliorative studies on animal fluorosis(Indian Veterinary Research Institute;Izatnagar, 2007) Ranjan, Rakesh; Swarup, D.ThesisItem Open Access Molecular characterization of nramp1 gene in four indigenous breeds of cattle found in Madhya Pradesh(Jnkvv, Jabalpur, 2008) Ranjan, Rakesh; Parmar, S. N. S.ThesisItem Open Access PREVALENCE OF GASTROINTESTINAL PARASITIC LOAD IN GOAT OF TWO AGROCLIMATIC ZONES OF WEST BENGAL WITH SPECIAL REFERENCE TO PREDICTION OF PARASITIC INFECTION LEVEL THROUGH MATHEMATICAL MODEL(Kolkata, 2012) Ranjan, Rakesh; Baidya, Dr. Surajit; Ghosh, Dr. J. D.; Dasgupta, Dr. C. K.; Bandopadhyay, Dr. M. C.; Pradhan, Dr. S.ArticleItem Open Access Role of co-administration of antioxidants in prevention of oxidative injury following sub-chronic exposure to arsenic in rats(2018-03-07) Patra, R.C; Swarup, D; Nandi, D; Ranjan, RakeshIn this experiment thirty rats were exposed to 0 (Gr. I, healthy controls) or 10 ppm arsenic (sodium arsenite) through drinking water ad lib for eight weeks after dividing them into five groups of six rats each. Rats in Gr. III, IV and V were administered a daily oral dose of cysteine, methionine or ascorbic acid 25 mg/kg body mass respectively, while those in Gr. II served as the treated control. At the end of the experimental period oxidative stress indices viz. lipid peroxides level (LPO), superoxide dismutase (SOD) and catalase (CAT) activities were estimated in blood, liver and kidneys from sacrificed rats. Arsenic exposure resulted in a significant (P<0.05) rise in LPO levels and activities of SOD and CAT in erythrocytes, liver and kidneys. All the different treatments reduced lipid peroxides levels and restored activities of antioxidant enzymes to variable extents in various tissues. However, arsenic exposure did not show any significant (P>0.05) effects on the body mass of rats of different groups over time. It is concluded from the present study that prophylactic co-administration of cysteine, methionine and ascorbic acid could provide tissue specific protection from oxidative injury during sub-chronic exposure to arsenic.ThesisItem Open Access STANDARDIZATION OF MAXIMIZING SURVIVAL RATE OF LITCHI AIR LAYERS(Birsa Agricultural University, Kanke, Ranchi, Jharkhand, 2012) Ranjan, Rakesh; ROY, R.N.Litchi is the most renowned of a group of edible fruits of the soapberry family, Sapindaceae. Low survival rate of litchi (nearly 35%) with existing practices is one of the major factors for low rate of plant multiplication of litchi particularly under Jharkhand conditions. Keeping this in view a technique of vegetative propagation of litchi cv. Purbi was employed with the three experiments. In the first experiment, study was done on the use of different wrapping materials for their standardization such as transparent colourless polyethylene(W1),black polyethylene(W2), aluminium foil (W3), blue polyethylene (W4),red polyethylene (W5) and gunny bag (W6). In the second experiment evaluation was done for standardization of pre-filling dipping treatments and the third experiment was done to evaluate the effects of composition of potting media and foliar spray on potted litchi saplings. The experiment was laid out in Completely Randomized Design with four replications (100 air layers per replication). Use of aluminium foil was found to be most effective for increasing the survival percentage of air layers after ten months (81.50%) over transparent colourless polyethylene (58.88%). Use of black polyethylene (78.13%) and red polyethylene (72.25%) were also found to be very effective in increasing the survival percentage of air layers. Use of aluminium foil also resulted in marked increase in the length (18.04 cm) and number (68.57) of fine roots over that of the control. Use of black or aluminium foil or red polyethylene also resulted in significantly higher values of plant height (37.23cm,35.99 cm and 34.86 cm, respectively) and number of leaves (27.70, 25.28 and 23.77, respectively) over that of transparent colourless polyethylene after ten months (27.12 cm and17.54). Use of aluminium foil or black polyethylene resulted in significantly higher values of root : shoot ratio (0.77 and 0.71, respectively), percentage contribution of root to total biomass [(both fresh (43.29% and 40.83%, respectively) and dry weight basis(45.80% and 43.71%, respectively)], concentration of nitrogen in root (1.03% and 0.96%, respectively), stem (0.8% and 0.79%, respectively) and leaf (2.59% and 1.94%, respectively), percentage contribution of roots to total nitrogen content in the plant (44.87% and 36.12%, respectively), concentration of potassium in stem (0.29% and 0.23%, respectively) and leaf (0.52% and 0.46%, respectively), content of potassium (10.11 and 7.51 mg) and iron in root (8.14% and 7.15%, respectively) over that of transparent colourless polyethylene. Use of black polyethylene resulted in significantly higher values of content of phosphorus in the root (11.60 mg), whereas use of aluminium foil resulted in maximum of contribution of roots to total phosphorus (50.57%) , and potassium (21.11%) content in the plant. The experiment on standardization of pre-filling dipping treatments consisted of six treatments, viz., dipping of rooted air layers in water (control),IBA (1500 ppm), dipping in cycocel{(1000ppm) followed by IBA(1500ppm) and p-hydroxy benzoic acid(500)}, NAA {(500 ppm) followed by IBA (1500 ppm) and p-hydroxy benzoic acid (500 ppm)}, dipping in humic acid solution (0.1%) and NAA (500 ppm) followed by humic acid solution (0.1%). The experiment was laid out in Completely Randomized Design with four replications (100 air layers per replication). Dipping of air layers in cycocel followed by IBA and p-hydroxy benzoic acid resulted in maximum survival of air layers(88%) followed by dipping in NAA {(500 ppm) followed by IBA (1500 ppm) and p-hydroxy benzoic acid (500 ppm)(83.13%)}. Dipping in cycocel followed by IBA and p-hydroxy benzoic acid resulted in maximum shoot girth(11.26 mm), height(55.90cm), number of leaves (53.20), dry weight of root (9.21), content of potassium in root(13.52mg) and stem(25.38mg), content of iron in the root(7.94mg) after ten months. The experiment on standardization of composition of potting media and foliar spray of chemicals consisted of three media compositions- Traditional practice{(Soil:FYM:Sand)(1:2:1)}(M1), soil+vermicompost:coco-peat (1:1:1) treated with SSP (1 kg/100 kg compost) and mycorrhiza (M2) and composted media containing FYM, coconut husk, leaf mould treated with SSP (1 kg/100 kg compost), mycorrhiza, PSB and lime(M3) [Main plot] and four treatments on foliar spray viz., humic acid (0.1%) (FS1), manganese sulphate (0.1%) (FS2),zinc sulphate (0.4%) (FS3) and boric acid (0.4%) (FS4)[Sub-plot] laid out in split plot design with four replications. Use of media M3 resulted in the maximum survival rate of litchi air layers (77.02%) as compared to M1 (49.02%). Among the foliar sprays, application of ZnSO4 resulted in the maximum survival rate (73.88%) after ten months. With respect to plant height and root:shoot ratio, the maximum values were recorded with M2 ( height 25.67 cm and root:shoot ratio 0.69 on fresh weight basis and 0.55 on dry weight basis) whereas among the treatments on foliar spray of chemicals, application of ZnSO4 resulted in the maximum plant height (23.58 cm) and root shoot ratio on fresh weight basis (0.69). The plant girth after ten months in case of M2 and M3 were at par and were significantly higher than M1.Growing of saplings in M3 with foliar spray of humic acid resulted in the maximum number of leaves per plant after ten months (46.73)The maximum concentration of nitrogen in root (1.12%), stem (0.72%) and leaves (2.32%) was recorded in FS3 whereas the phosphorus concentration was the maximum in case of growing the saplings in M2 and foliar spray of boric acid (0.40%). The concentration of potassium in root was the maximum with foliar spray of MnSO4 (0.44%), with foliar spray of humic acid in stem (0.75%) and with spray of ZnSO4 in leaves (1.90%). On the basis of results of the experiments it may be concluded that, the higher rate of survival and vigour of litchi saplings, aluminium foil can be recommended as wrapping material of litchi air layers. Pre-filling dipping of air layers in solution containing cycocel (1000 ppm) followed by IBA (1500 ppm) and p-hydroxy benzoic acid (500 ppm) can also be recommended for preparation of litchi air layers. Use of composted media containing FYM, coconut husk, leaf mould treated with SSP (1 kg/100 kg compost), mycorrhyza, PSB and lime as potting media along with foliar spray of ZnSO4 (0.4%)can also be recommended for largescale production of healthy litchi saplings.