Browsing by Author "ARUNKUMAR"
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ThesisItem Open Access COMPARATIVE EVALUATION OF DEXMEDETOMIDINE,XYLAZINE AND TRIFLUPROMAZINE ASPREANAESTHETICS WITH PROPOFOL INDUCTION ANDISOFLURANE ANAESTHETIC COMBINATION FORVARIOUS SURGERIES IN DOGS(Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2016) ARUNKUMARMany minor and major surgical procedures are routinely performed in small animal practice that require short term sedation,ThesisItem Open Access EVALUATION OF NEW POST EMERGENT HERBICIDES AGAINST WEEDS AND THEIR EFFECT ON GROWTH AND YIELD OF MAIZE (Zea mays L.)(UNIVERSITY OF AGRICULTURAL SCIENCES RAICHUR - 584 104, 2018-07-30) ARUNKUMAR; R. B. NEGALURA field experiment was conducted during Kharif 2017 at new Farm of AICRP on weed management, MARS, UAS, Raichur to study the “Evaluation of new post emergent herbicides against weeds and their effect on growth and yield of maize (Zea mays L.)”. The experiment was laid out in RCBD with three replications and twelve treatments. The results of experiment revealed that, amongst broad leaved weeds, Euphorbia geniculata was the dominant one while in grasses, Brachiaria eruciformis was most prevalent and the lone sedge weed noticed was Cyperus rotundus. All weed management practices significantly reduced the total weed population and dry matter accumulation by weeds as compared to weedy check. Based on the results, it is concluded that sequential application of atrazine 50 % WP @ 500 g a.i. ha-1 (PRE) at 0-3 DAS fb tembotrione 34.4 % SC @ 125 g a.i. ha-1 (POE) at 30 DAS provided excellent control of all types of weeds at all stages of the crop growth, recorded higher weed control efficiency (79.54 %), higher nutrient uptake by maize plant at harvest, lowest nutrient uptake by weeds at 60 DAS, higher growth, yield, yield attributes and also recorded higher dehydrogenase, phosphatase activiry in soil at flowering stage with higher in N2 fixers, PSM, total bacterial count in rhizosphere soil and it was found to be on par with application of atrazine 50 % WP @ 500 g a.i. ha-1(PRE) at 0-3 DAS fb topramezone 33.6 % SC @ 75 g a.i. ha-1 (POE) at 30 DAS and atrazine 50 % WP @ 500 g a.i. ha-1 (PRE) at 0-3 DAS fb halosulfuron 75 % WDG @ 90 g a.i. ha-1 (POE) at 30 DAS. Higher B:C ratio (3.07) was obtained in atrazine 50 % WP @ 500 g a.i. ha-1 (PRE) at 0-3 DAS fb tembotrione 34.4 % SC @ 125 g a.i. ha-1 (POE) at 30 DAS and it was at par with atrazine 50 % WP @ 500 g a.i. ha-1(PRE) at 0-3 DAS fb topramezone 33.6 % SC @ 75 g a.i. ha-1 (POE) at 30 DAS (2.87), hand weeding twice at 25 and 50 DAS (2.70) and lowest in weedy check (1.40).ThesisItem Open Access PHENOLOGICAL BEHAVIOUR AND PRODUCTIVITY OF PIGEONPEA (Cajanus cajan L. Millsp.)(UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR, 2014-09-30) ARUNKUMAR; M. M. DHANOJI, J. R. PATIL, R. P. PATILA field experiment was conducted at College of Agriculture, Raichur during kharif season 2013-14 to study the phenological behaviour and productivity of pigeonpea. There were twelve treatment combinations comprising of three dates of sowing as main treatments (10th July, 1st August and 20th August) and four genotypes as sub treatments (BSMR-736, TS-3R, Asha and Maruti). Significantly higher mean seed yield was recorded with early sown crop (10th July) over the late sown crop (20th August,). However, among the genotype studied cv. Asha recorded significantly higher mean seed yield over all other genotypes. The interaction effects due to date of sowing and genotypes revealed significantly higher seed yield by cv. Asha with early sowing on (10th July) over all other treatment combinations. Significantly higher seed yield was noticed with early sown crop particularly cv. Asha was mainly attributed to higher flower production, pods per plant, pod weight per plant, 100 seed weight. The maintenance of more leaf area, leaf area index (LAI), CGR, RGR, NAR, LAD, SLW and HI in early sown crop resulted in improvement in yield traits and yield in general. Statistically higher mean value of growth parameters viz., plant height, stem thickness, branches per plant, dry matter accumulation and its partition and their strong association with yield in early sown crop were realized due to longer crop duration coupled with longer phenological phases, more accumulated GDD and sunshine hours and better percent of light interception coupled with higher chlorophyll content. Interestingly, higher abscission leaf, flower and pods were noticed with 10th July early sown crop over late sown August sown crop and were more so with cv. Asha. This may be attributed to more leaf, flower and pod production due to imbalance source sink relations. Further, it might be due to lower mean minimum temperature coupled with. In contrast, hastened maturity of the crop due to higher diurnal variation in temperature coupled with no precipitation during the flowering and podding phase seems to be unfavorable for development of sink capacity in the late sown crop which intern expressed in poor test weight and seeds per pod.ThesisItem Open Access STUDIES ON Fusarium WILT IN SCENTED GERANIUM [Pelargonium graveolens (L.) Herit](University of Agricultural Sciences, Bangalore, 2020-12-30) ARUNKUMAR; Shreenivasa, K. R.Scented geranium is an important, perennial aromatic herb affected by several diseases of which wilt caused by Fusarium oxysporum is becoming a major constraint in production. Wilt symptoms such as yellowing, drooping of plants and vascular discolouration were observed in the infected stems. Maximum wilt incidence recorded in Tumakuru district (36.73 %). The wilt causing pathogen was isolated from infected plant samples collected from different geranium growing areas of southern Karnataka and pathogenicity was proved under greenhouse conditions. The re-isolated pathogen was identified as F. oxysporum based on its morphological characters by comparing with standard descriptions of Fusarium species and also confirmed the pathogen through molecular characterization of isolates by using universal fungal ITS-1 and ITS-4 primers. Sabouraud's dextrose agar (SDA) and corn meal agar (CMA) were found to be ideal for radial mycelial growth and sporulation. The maximum growth and sporulation of the pathogen was found at temperature 25 ˚C and pH of 6.5. Among the botanicals and bio agents evaluated under in vitro condition against F. oxysporum, agave (59.31 %), Trichoderma viride Tv- 8 (71.12 %), Bacillus pumilis (54.66 %) and B. velezensis Bv-P42 (53.61 %) were effective in inhibition of mycelial growth of the pathogen. Among the fungicides evaluated, systemic fungicides carbendazim and propiconazole shower 100.00 per cent, combi products hexaconazole + captan 84.51 per cent and contact fungicide copper oxychloride 56.48 per cent were effective as evidenced by maximum mycelial growth inhibition compared to other fungicides under in vitro condition.ThesisItem Open Access STUDIES ON Fusarium WILT IN SCENTED GERANIUM [Pelargonium graveolens (L.) Herit](University of Agricultural Sciences, Bangalore, 2020-11-20) ARUNKUMAR; ARUNKUMAR; Shreenivasa, K. R.; Shreenivasa, K. R.Scented geranium is an important, perennial aromatic herb affected by several diseases of which wilt caused by Fusarium oxysporum is becoming a major constraint in production. Wilt symptoms such as yellowing, drooping of plants and vascular discolouration were observed in the infected stems. Maximum wilt incidence recorded in Tumakuru district (36.73 %). The wilt causing pathogen was isolated from infected plant samples collected from different geranium growing areas of southern Karnataka and pathogenicity was proved under greenhouse conditions. The re-isolated pathogen was identified as F. oxysporum based on its morphological characters by comparing with standard descriptions of Fusarium species and also confirmed the pathogen through molecular characterization of isolates by using universal fungal ITS-1 and ITS-4 primers. Sabouraud's dextrose agar (SDA) and corn meal agar (CMA) were found to be ideal for radial mycelial growth and sporulation. The maximum growth and sporulation of the pathogen was found at temperature 25 ˚C and pH of 6.5. Among the botanicals and bio agents evaluated under in vitro condition against F. oxysporum, agave (59.31 %), Trichoderma viride Tv- 8 (71.12 %), Bacillus pumilis (54.66 %) and B. velezensis Bv-P42 (53.61 %) were effective in inhibition of mycelial growth of the pathogen. Among the fungicides evaluated, systemic fungicides carbendazim and propiconazole shower 100.00 per cent, combi products hexaconazole + captan 84.51 per cent and contact fungicide copper oxychloride 56.48 per cent were effective as evidenced by maximum mycelia growth inhibition compared to other fungicides under in vitro conditionThesisItem Open Access STUDIES ON NUTRIENT MANAGEMENT IN PIGEONPEA [Cajanus cajan (L.) Millsp.] AND CORIANDER (Coriandrum sativum L.) INTERCROPPING SYSTEM(UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR, 2017-06-30) ARUNKUMAR; B.G. KOPPALKAR, SHYAMRAO KULKARNI, K. NARAYANA RAOA field experiment was conducted at Agricultural College Farm, Raichur during kharif 2016 to study the nutrient management practices in pigeonpea and coriander intercropping system. The experiment was laid out in randomized block design with three replications and nine treatments. The sole crop of pigeonpea and coriander produced significantly higher seed yields (1320 and 647 kg ha-1, respectively) when compared to their intercropping treatments. Among the various intercropping treatments, the treatment which received 125 per cent RDF to pigeonpea and no fertilizer to coriander (T4) recorded significantly higher seed yield of pigeonpea (1156 kg ha-1) compared to other intercropping treatments and was found on par with treatments, T3 (1066 kg ha-1) and T5 (1134 kg ha-1) and the treatment which received 100 per cent RDF to both the crops (T5) recorded significantly higher seed yield of coriander (530 kg ha-1) compared to other intercropping treatments. The pigeonpea equivalent yield was significantly higher in intercropping system as compared to respective their sole crops. The total uptake of nutrients in intercropping system was relatively higher as compared to sole cropping of both the crops. Higher land equivalent ratio (1.67) was noticed in the intercropped treatment (T5). The LER recorded under intercropping system varied from 1.10 to 1.67. The higher net returns was recorded under T5 (Rs 66,884 ha-1) with the treatment, T4 recorded on par net returns (Rs. 61,850 ha-1) and T3 (Rs. 56,280 ha-1). Highest B:C of 3.04 was observed under T5 which received 100 per cent RDF to each crop and T4 (2.99) and T3 (2.90) recorded on par B:C with each another.ThesisItem Open Access A STUDY ON INFLUENCE OF PRICING METHODS ON PRICE OF REDGRAM IN GULBARGA(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 42204) ARUNKUMAR; Venkata Reddy, T. NIndia accounts for 90 per cent of the global production of redgram (Cajanus cajana). Uttar Pradesh, Madhya Pradesh, Maharashtra and Gujarat accounts for major share in production. North-East Karnataka is known for redgram production particularly the Gulbarga district. The present study’s specific objectives were the analyzing farmer’s awareness about the different pricing methods, factors influencing the price and to analyze the different pricing methods. 100 redgram growers were selected who sold the produce in Gulbarga, Sedam and Chittapur were selected for the study. 94 per cent of the farmers were aware of the different pricing methods. Open auction was known by 91 per cent farmers and e-tendering by 76 per cent of farmers. 84 per cent of the farmers opted for open auction method to sell the produce. Moisture content was the major factor which influenced the price followed by seasonality and number of buyers participated in purchasing process as indicated by 97 per cent, 76 per cent and 68 per cent of the farmers respectively. The comparative analysis of different pricing methods revealed that the price realized was highest in e-tendering (Rs.5885/Qtl) followed by open auction (Rs.5504/Qtl). E-tendering was preferred for sales of redgram with a Garrett’s ranking of I and mean score of 22.82 in Gulbarga, whereas farmers in Chittapur market ranked open auction as number I with a mean score of 29.92 and mutual negotiation in Sedam ranked as number I with a mean score of 22.82. The E-tendering pricing method resulted in higher price this needs to be promoted among the farmers