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Odisha University of Agriculture and Technology, Bhubaneswar
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ThesisItem Open Access Germination and early seedling growth of selected avenue tree species on fly ash substratum(Department of Natural Resource Management, OUAT, Bhubaneswar, 2022-05-31) Rout, Satish Kumar; Behera, Madhab ChandraThe present investigation entitled “Studies on Germination and Seedling Performance of Some Important Avenue Tree Species on Fly Ash Substratum”was carried out in the department of Natural Resource Management, OUAT, to understand the impact of addition of fly ash (FA) on seed germination as well as growth of some important avenue tree species in their early stages (seedling stage). FA substratum was prepared by mixing FA to potting mixture (sand, soil and FYM in ratio 1:2:1) at concentrations 20%, 40%, 60%, 80% & 100% (w/w). The physicochemical properties of FA substratum viz. colour, texture, pore space, water holding capacity, bulk density, pH, organic carbon, available nitrogen, phosphorous and potash were studied. For germination and growth performance study two avenue plant species namely Delonix regia (Krushna chuda), Adenenthera pavonina (Manda Kaincha) were selected. Observations relating to germination were recorded on daily basis for 30 days. Germination parameters like germination percentage, MDG, peak value, germination capacity, germination index, seedling vigour index were determined for 30 days. It was observed that maximum germination percentage was recorded in treatment T1 (20% FA+PM) for Delonix regia (53.37%) whereas in Adenenthera pavonina it was observed in treatment T2 (50.33%). The seedling vigour index was found maximum in 20% FA mixed PM for both the species. All germination parameters were found lowest in T5 (100% FA). The study on growth performance with different growth parameters such as plant height, collar diameter, number of leaves, leaf area, root length, shoot length, nodulation, biomass, chlorophyll content were recorded at 30 days interval for 90 days. Seedling survival percentage was recorded maximum in treatment T1 (D. regia 91.83% and A. pvonina 90.97 %). Plant morphometrics characters like seedling height, diameter, leaf number, root length, biomass varied in different treatments in a dose dependent manner. Seedling quality index improved significantly over control and found highest in treatment T1 for both the species (D. regia 0.90 and A. pvonina 0.76). It is concluded from the present investigation that potting mixture may be mixed with FA in the range of 20-40% (w/w) to improve physicochemical properties as well as the quality of seedlings. This may open a new avenue for FA management and environmental protection.ThesisItem Open Access Crown architecture, growth and yield of promising Eucalyptus clones for farm forestry(Department of Silviculture and Agroforestry, OUAT, Bhubaneswar, 2022-06-07) Rout, Chandan Kumar; Bhol, NirakarAn investigation entitled “Crown architecture, growth and yield of promising Eucalyptus clones for farm forestry” was conducted at clonal plantation area of JK paper mill Rayagada as well as in college of Forestry, OUAT, Bhubaneswar during 2021-22.The experiment was consisting of 15 clones of eucalyptus and laid out in RBD with three replications. The clones were planted at a spacing of 3.0m X 1.5m in 2013 at JK paper mill, Rayagada. The plantation area comes under North-Eastern Ghat agroclimatic zones of Odisha. The laboratory works were carried out at College of Forestry, OUAT, Bhubaneswar. After eight years of establishment, it was found that clone JKSC-ECD and CPM-2070 recorded highest height (23.37 m) and CPM-2313 was recorded with lowest height (17.93 m). As regards to crown height JKSC-BP6 possessed highest crown height (13.39 m) while EC larariver secured the lowest crown height (7.33 m). JKSC-ECD produced crown on maximum length (12.83m) whereas IFGTB-4 produced crown of minimum length (5.93m). In case of crown length to total height ratio, JKSC-ECU registered highest value (0.57) whereas IFGTB-4 (0.32) registered lowest. As regards to crown area, there was no significant variation. It varied from (3.82m) to (4.39m). As regards to angle of branching of primary branches in 8 years MPM-MU8P registered significantly higher value over others (40.67o) while MPM-225 produced branches of minimum angle (17.67o). In case of number of primary branches, JKSC-ECD witnessed maximum number of branches (40.33) and IFGTB-4 registered minimum no of primary branches (13.67). JKPM-2135 intercepted highest light (78.96 %) whereas CTA-7.2 intercepted lowest (45.24 %). At the age of 8 years of plantation, it was observed that the shape of crown in all clones was nearly cylindrical. JKSC-ECD secured maximum DBH (19.00 cm) whereas CPM-288 achieved minimum DBH (11.57 cm). The highest MAI of DBH was registered by JKSC-ECD (2.38cm) whereas the lowest value was recorded in CPM-288(1.44cm). JKSC-ECD witnessed the highest height growth (2.92 m) whereas exhibited lowest height growth (2.30m) per annum. CPM-288 exhibited maximum bark thickness (2.48cm) and CTA-7.2 possessed lowest bark thickness (1.23cm). JKSC-ECD produced highest diameter under bark (16.22cm) while CPM-288 produced least diameter under bark (4.70cm). EC larariver produced highest stem form (0.78) and JKSC-ECD produced lowest stem form (0.68). In case of biomass of stem, branch, leaf and bark JKSC-ECD was highest and IFGTB-4 was lowest. Similarly JKSC-ECD stored maximum carbon in stem, branch, leaf and bark whereas IFGTB-4 stored lowest. In case of nutrient content in leaf JKSC-ECD stored highest whereas IFGTB-4 stored lowest. JKSC-ECD had highest cellulose and lowest lignin content. From overall point of view JKSC-ECD clone may be considered as the best among the 15 clone tested.ThesisItem Open Access Biodiversity and carbon footprint of Silviculture Research Garden at Ghatikia, Bhubaneswar(Department of Natural Resource Management, OUAT, Bhubaneswar, 2022-05-19) Behera, Snigdha Sradhanjali; Sahoo, A.K.The variety and variability of life on Earth is referred to as biodiversity. Biodiversity is a term that refers to genetic, species, and ecological variation. Biodiversity is the bedrock of a wide range of ecological services that are vital to human well-being. Biodiversity is defined as the variation among living creatures from all sources, including terrestrial, marine, and other aquatic habitats, as well as the ecological complexes to which they belong; this encompasses variety within species, across species, and between ecosystems. Biodiversity is not uniformly spread across the globe; it is most abundant in the tropics. About 90% of the world's species are found in tropical forests. Basing on the above, a study was conducted as “Study on biodiversity and carbon stocks of Silviculture Research Garden at Ghatikia, Bhubaneswar” with the objectives of (i) to assess the biodiversity of Silviculture Research Garden, Ghatikia (ii) to assess the species structure, diversity & dynamics in the variation & (iii) to estimate carbon stock of above, below ground biomass and soil of the garden. The research included 21 plots of different species such as Bambusa vulgaris, Pterocarpus santalinus, Thyrsostachys regia, Bambusa nutans, Swietenia macrophylla, Mesua ferrea, Cassia fistula, Pongamia pinnata, Tectona grandis, Saracaasoca, Shorea robusta, Phyllanthus emblica, Pterospermum heyneanum, Holoptelea integrifolia, Bambusa tulda, Bridelia retusa, Acacia mangium, Eucalyptus hybrid, Alstonia scholaris. Among different species Pterocarpus santalinus had the maximum DBH of 34.200 cm in January 2022 and it recorded 33.533cm in January 2021 and 33.967 in June 2021. The DBH of Bambusa tulda(3.400 cm) as determined to be the lowest in January 2022 which recorded 2.933cm in January 2021 and 3.133cm in June 2021.Bambusa nutans had the maximum height of 22.177 m in January 2022 and it recorded 26.380m in January 2021 and 29.073m in June 2021. The height of Mesua ferrea (3.310 m) as determined to be the lowest in January 2021 which recorded 5.507m in June 2021 and 7.363m in January 2022. The growth pattern of height was comparable to that of trees. All systems have a certain height. Total biomass was recorded highest in Bambusa vulgaris which measured 1072.690 kg/tree in January 2022 and had total biomass of 892.917 kg/tree in January 2021 and 998.190 kg/tree in June 2021. Lowest total biomass was recorded in Saraca asoca which had biomass of 8.200 kg/tree in January 2022. It recorded a biomass of 6.310 kg/tree in January 2021 and 7.470 kg/tree in June 2021.Carbon stock was recorded highest in Bambusa vulgaris which measured 536.343 kg/tree in January 2022 and had carbon stock of 446.460kg/tree in January 2021 and 499.097 kg/tree in June 2021. Lowest carbon stock was recorded in Saraca asoca which had CS of 4.100 kg/tree in January 2022. It recorded a CS of 3.153 kg/tree in January 2021 and 3.733 kg/tree in June 2021.The Shannon Weiner diversity index was found to be 2.484. The species evenness was calculated using Pielou’s formula. And the value was found to be 0.82. Highest density of trees was recorded in Shorea robusta Followed by Phyllanthus emblica. Research station had pH values ranging from 3.84 to 5.91. The pH 0f Tectona grandis (3.84) in January 2021 was determined to be the lowest, whereas the pH of Pterocarpus santalinus(5.91) was found to be the highest in all the three seasons.The EC of research station ranged from 0.06 to 0.07dS m-1. Organic carbon concentrations in research station ranged from 0.61% to 1.28%. Bambusa nutans had the highest organic carbon content of 1.28% in January 2021and in June 2021.Bambusa tulda had OC of 1.28%, and in January 2022 and Bambusa nutans had OC of 1.28%. Available nitrogen content ranged from 202.13 to 112.38 kg ha-1 in the research station. Saraca asoca had the highest nitrogen availability of 202.13 kg ha-1 in all three seasons. In Phyllanthus emblica the minimum available nitrogen was found to be 112.38 kg ha-1, 112.30 kg ha-1and 112.38 kg ha-1 respectively. The soil phosphorus availability ranged from 54.26 to 16.42 kg ha-1.Eucaluptus hybrid had the highest accessible phosphorus of 54.26 kg ha-1in all three seasons. Shorea robusta had the lowest accessible phosphorus level of 16.42 kg ha-1in all three seasons. Potassium availability ranged from 10 to 241.26 kg ha-1. Bambusa nutans had the maximum accessible potassiumin all three seasons and Messua ferrea had found the lowest accessible potassium content.ThesisItem Open Access Germination and seedling quality of selected multipurpose tree species (MPTs) on fly ash substratum(Department of Natural Resource Management, OUAT, Bhubaneswar, 2022-05-31) Panda, Pranab Kumar; Behera, Madhab ChandraThe present investigation entitled “Germination and Seedling Quality of Selected Multipurpose Tree Species (MPTs) on Fly Ash Substratum” was carried out with the objective to study the changes in physiochemical properties pot mixture after admixing fly ash (FA) at specific proportions and impact of FA admixed substratum on germination and growth performance of selected MPTs. FA is a combustion residue generated from thermal power plant during burning of coal. It is generally treated as a major obnoxious solid waste and is being disposed in ample amounts every year. FA addition to PM in specific dose improved physicochemical properties as well as nutritional quality of the soil and thereby beneficial for plant growth. For the present investigation, FA substratum was prepared by admixing FA to potting mixture (sand, soil and FYM in ratio 1:2:1) at concentrations 20%, 40%, 60%, 80% & 100% (w/w). The physicochemical properties of FA substratum such as colour, texture, pore space, water holding capacity, bulk density, pH, organic carbon, available nitrogen, phosphorous and potash were included in this study. For germination and growth performance study two fast growing MPTs viz. Bauhinia variegata L. (Kanchana) and Albizia lebbeck (L.) Benth. (Sirisa) were selected purposefully. Germination parameters like germination percentage (GP), MDG, peak value (PV), germination capacity (GC), germination index (GI), germination energy (GE), vigour index (VI) were recorded daily for 30 days. It was observed that best GP and GI was recorded in treatment T1 (20% FA+PM) for both the species. Seedling vigour index after 30 days was observed high in treatment T1 (1259.67) for Bauhinia variegata and treatment T2 (770.0) for Albizia lebbek respectively. All germination parameters studied were found lowest in treatment T5 (100% FA) for both the species under study. Parameters with respect to shoot growth viz. plant height, collar diameter, number of leaves and leaf area were recorded at 30 days intervals for 90 days. After 90 days parameters of shoot growth as well as root, biomass yield and chlorophyll content in leaf was studied. It was observed that seedling survival per cent was maximum 91.60% in treatment T1 for Bauhinia variegata and 91.57% in treatment T2 for Albizia lebbek. Seedling height and diameter growth was observed high in treatment T1 for both the species. Dickson’s quality index was also found high in treatment T1 for both the species. It is concluded from the present investigation that FA improved the physicochemical properties of potting mixture as well as quality of seedlings. It was concluded that FA can be utilized with a range from 20-40% (w/w) in forest nurseries for producing quality planting material, opening a new avenue for FA management and environmental protection.ThesisItem Open Access Root architecture and soil properties of promising Eucalyptus clones for farm forestry(Department of Silviculture and Agroforestry, OUAT, Bhubaneswar, 2022-06-07) Sahoo, Soumyaranjan; Bhol, NirakarAn investigation entitled “Root architecture and soil properties of promising Eucalyptus clones for farm forestry” was conducted at R & D Field of JK Paper Mill, Rayagada as well as in College of Forestry, OUAT, Bhubaneswar during 2021-22. The experiment was consisting of 15 clones of eucalyptus and laid out in RBD with three replications. The clones were planted at a spacing of 3.0m x1.5m in 2013 and their root architecture and effect on soil properties were studied after eight years of establishment. The plantation area comes under North-Eastern Ghat agroclimatic zone of Odisha. The laboratory works were carried out at College of Forestry, OUAT, Bhubaneswar. After eight years of establishment, it was found that clone JKSC-ECD recorded highest collar girth (0.77m) and IFGTB-4 recorded the lowest collar girth (0.51m). Clone JKSC-ECD produced longest primary root (2.51m) and IFGTB-4 generated the shortest primary root (1.30m). With regard to number of lateral roots, JKSC-ECD registered highest (60.33) and CPM-288 the lowest number (44). With regard to rhizosphere area JKSC-ECD occupied maximum root spread area (6.91m2) whereas CTA-7.2 covered least area (3.04m2). As far the fresh weight is concerned, JKSC-ECD produced highest (140.73 t/ha) and IFGTB-4 was the lowest (22.79 t/ha). Moisture content % was highest in CTA-8GS274 (55.84%) and lowest in CPM-2070 (30.75%). The maximum dry weight was recorded in JKSC-ECD (83.34 t/ha) while lowest was found in IFGTB-4 (15.08 t/ha). JKSC-ECD registered the highest carbon storage (41.67 t/ha) and IFGTB-4 secured the lowest (7.54 t/ha). Highest bark % was recorded in clone CPM-2313 (10.83%) and lowest in JKPM-316 (5.54%). Regarding soil chemical characteristics, highest pH was found under JKSC-ECD (5.63) and lowest in IFGTB-4 (4.60). Organic carbon was maximum under JKSC-ECD (0.67%) and lowest under IFGTB-4 (0.38%). In case of available N, highest was recorded under JKSC-ECD (435.12 kg/ha) and lowest under IFGTB-4 (285.40 kg/ha). Available P was found maximum under JKSC-ECD (46 kg/ha) and minimum under IFGTB-4 (25.01 kg/ha). With regard to available potassium, highest was recorded under JKSC-ECD (251.97 kg/ha) and lowest in IFGTB-4 (140.14 kg/ha). IFGTB-4 recorded the highest population of fungi (5.01 × 104), the lowest population of fungi was recorded in JKSC-ECD (1.23 × 104). JKSC-ECD registered the highest population of bacteria (10.86 × 106), the lowest population of bacteria was witnessed in IFGTB-4 (3.31 ×106). JKSC-ECD resulted the highest population of actinomycetes (8.78 × 105) while IFGTB-4 recorded the lowest population of actinomycetes (4.4 × 105). From overall productivity point of view, JKSC-ECD clone of Eucalyptus camaldulensis may be considered as the best among the clones tested.ThesisItem Open Access Supply chain analysis of teak market in twin cities of Odisha(Department of Forest Policy and Law, OUAT, Bhubaneswar, 2022-06-27) Panda, Shuvangi; Kar, Ranjan KumarTeak (Tectona grandis) is an outcrossing deciduous tree nativity of 4 countries including India that originated during miocene age 21.45 MYA and migrated to 70 countries and worldwide loved to be king of of timbers. It is of great concern that India reverted her postion from from largest produser to largest consumer over the world. So this is high time to study its supply chain in order to increase its production to contribute over world trade. Cuttack and Bhubaneswar, the twin cities of Odisha having one of the fastest growing economy in eastern India that coupled magnification in the real estate sector with increasing consumption of teak based products. Keeping this in view, the present research “Supply chain analysis of teak market in twin cities of Odisha” was formulated to find the changing demand, supply and price and suggest comprehensive action points to sort out barriers in teakwood supply chain in the twin cities of Odisha. For this purspose data were collected from both primary sources (all the stakeholders contributed to the supply chain) and secondary sources, namely reports of researches, govt. departments of both state and centre (environment and forest department, export, commerce, MSME, etc.) and international agencies (ITTO, CIFOR, etc.) and leading NGOs. Sampling of total 6 number of trading markets (zones) were selected @ 3 per city as per selective sampling from which the intermediaries were interviewed. In the trade routes study a total of 10 major marketing channels were recorded for the flow of products within study area. These marketing channels recorded were stakeholders like, nurseries, farmers, depot, carpenters, govt., showrooms, and consumers. There is a structural and functional correlation among these stakeholders and interdependency. From the 33 farmers who were interviewed, 57.5% of the farmers were of higher secondary education, 36.36% were graduates and only 6% had completed post-graduation. About their opinion 6% of respondents told that there was no scope, 3% found poor scope and 21.21% expected moderate scope, 36.36% agreed for high scope and 33.33% were ambitious to see very high scope for the further plantations. From the test of reliability we found that there must be improvement in the system of teak growing by farmers in order to generate their trust on teak and to get more and more satisfaction. There is very less number of saw mills operating in the twin cities. Khordha district covering Bhubaneswar had 16 saw mills functional and whereas Cuttack district had 10 saw mills. There were 79 licenced and functional depots in the study area and Bhubanesar alone had 56 depots whereas cuttack had 23 only. The volume of wood sold in Bhubaneswar is more than cuttack (McNemar Test). There observed year-wise variation of sale in our study area (chi squre one way) and it was too clear that year-wise variation of sale of individual depot was respective of place (based on chi squre two way). The average selling price of the teak round timber for 2020-2021in the Bhubaneswar division was Rs. 27952010, which had sale price Rs. 60918/cu.m. The current stringent policy of the Indian govt. for teak with more particular in the state of Odisha may be the valid reason for falling of sale proceed from teak when compared to other countries and state. Malaysia has become a significant teak exporting county due to its better policy and management. The volatility in demand, supply and price with long market channels enabled this research to conclude that policy and institutional support (Finance, insurance, mechanization, product generation and market) are sin-e-quanone to strengthen every stakeholders in the supply chain of teak. Further, in the present context of unsustainability in field crops, increased human resource engagement, mechanization, product diversification, and expansion of the real estate sector the need of the hour is liberalization of teak wood based sector which may increase scope for farmers for income generation and for consumers address the adulteration in this sector. It is ironic to say the weaver of transit, more public-private partnership, finance, research with involvement of extension in every domain of this natural resource can undoubtedly avail its sustainability in the supply chain more involvement in world trade.ThesisItem Open Access Standardization of vegetative propagation technique of Bambusa vulgaris var. Wamin(Department of Forest Biology and Tree Improvement, OUAT, Bhubaneswar, 2022-04-30) Mohanty, Lopamudra; Mohanty, T.L.The present investigation entitled, “Standardization of vegetative propagation technique of Bambusa vulgaris var. wamin” was carried out in the nursery of college of forestry, OUAT. The experiment was laid by RBD Factorial design with 30 treatments. Maximum height (80.34cm) was obtained in T27 ( two year top portion three node), and minimum (26.95cm) was obtained in T7 ( one year middle branch portion one node ). The maximum collar diameter (1.60cm) was found in T8 ( one year middle branch two node ) and minimum collar diameter (0.55cm ) was found in T4 ( one year middle one node). Highest number of culms ( 4.83 nos ) was obtained in T6 ( one year middle three node), and lowest ( 0.85nos) in T25 (two year top one node). The maximum number of rhizomes ( 3.25 nos ) was observed in T12 ( first year top three node)and no rhizomes found in T28 ( two year, top branch, one node,) The maximum number of nodes( 17.50nos ) were found in T27 ( two year top three node ) and the minimum number of nodes( 7.0nos ) was found of T13(one year top branch one node). Highest number of branches (5.50 nos) was obtained from T6(one year middle three node) and minimum number of branches (0.30 nos) obtained from T28(two year top branch one node). Maximum internodal length (4.49cm) was found in T10(one year top one node) and minimum internodal length (2.12cm) was found in T25 (two year top one node ) . The highest leaf area 43.81 cm 2 was obtained in T22 (two year, middle branch section one node) and minimum of 9.91 cm 2 in T25 ( second year , top section, one node). The highest shoot fresh weight ( 282.29 gm ) was obtained in T27 ( second year top three node ) and lowest ( 21.50gm ) was found in T14 ( first year top branch two node). Highest root fresh weight of ( 276.50 gm ) was found in T1 (one year , basal portion,single node) and lowest ( 10.50 gm ) found in T7 ( one year, middle branch, one node). The highest shoot biomass (179.92gm) was found in T27(second year, top portion, three node) and lowest ( 10.87 gm ) in found in T14 ( one year, top branch cutting, two node). The highest biomass of root (186.17 gm) was found in T3( one year basal three node ) and lowest (2.70 gm) found in T7 ( one year middle branch one node ). The highest total fresh weight (543.97 gm) was found in T6 ( first year middle three node ) and minimum (32.33gm) obtained in T14 ( first year top branch two node ). The maximum total dry weight (329.00gm ) was found in T3( first year basal three node ) and minimum (14.23gm ) obtained in T14( first year top branch two node). The maximum moisture content of 72.07% was found in T7 (first year, middle branch portion, one node) and minimum of 34.04% in T3 (first year , basal portion, three node). The maximum seedling quality index (6.97) was found in T3 ( first year basal three node ) and minimum SQI (0.28) was found in T14 (first year top branch two node). Total dry weight biomass had positive correlation with plant height, collar diameter, number of nodes, internodal length, number of branches, dry shoot biomass, dry root biomass, root length and total fresh weight biomass. High positive direct effect on dry biomass was exhibited by dry shoot weight, dry root weight. On the basis of SQI data, one year basal thee noded culm cutting was a superior planting material among all the treatments studied. It was concluded from the study that one year old , basal position and three node cuttings performed better than others.ThesisItem Open Access Variability study among different seed sources of Jatropha curcasL.(Department of Forest Biology and Tree Improvement, OUAT, Bhubaneswar, 2022-04-30) Patra, Rakesh; Kar, JayashreeThe present investigation entitled “Variability study among different seed sources of Jatropha curcasL.” was carried out with the aim to assess the spectrum of variability among the entries obtained from different seed sources for fifteen morphological and biochemical traits, to study character association between different yield attributing traits and the direct as well as indirect effect of various ancillary traits on seed yield and oil yield for formulation of selection strategy. Analysis of variance revealed significant difference among the entries from different seed sources for characters like plant height, collar diameter, no. of primary branches, plant canopy width, leaf length, fruit length, fruit yield/plant, seed length, seed width, seed yield/plant, oil content (%) and 100 seed weight. Seed yield/plant varied between 143.270 gm and 203.750 gm with minimum for MIDJ-1 and maximum for JCP-4 while oil content (%) ranged between 39.940% and 47.940% in MIDJ-1 and JIP-12 respectively. Entry like JCP-4 was found to be superior with respect to seed yield. Genetic component of variance, like PCV (29.418 %), GCV (28.137 %), heritability (91.481 %) and genetic advance (%) (55.439 %) were highest for no. of primary branches. Fruit width exhibited the lowest PCV (0.971 %), GCV (0.686 %) and genetic advance (0.020 %). The genetic components (GCV &PCV) for all parameters except no. of primary branches showed low to moderate level of performance, whereas heritability displayed moderate to high level of performance. High heritability with high genetic advance was observed for plant height, no. of primary branches, plant canopy width and seed yield/plant indicating the preponderance of additive gene effect on expression these characters. Seed yield exhibited genotypically positive correlation with plant height, collar diameter, no .of primary branches, leaf width, plant canopy width, fruit yield/plant, seed length, seed thickness and 100 seed weight at genotypic level. Effects of plant height, no. of primary branches, plant canopy width, fruit yield/plant, seed length, seed thickness and 100 seed weight on seed yield/plant were direct and positive both at phenotypic and genotypic level. Hundred seed weight had highest positive direct effect (0.436) on seed yield/plant. On the basis of genetic analysis plant height and plant canopy width could be selected as character for selection of superior plants for seed yield which will be useful for improvement programme.ThesisItem Open Access Enhancing the shelf life of Jackfruit ( Artocarpus heterophyllus L.) by osmotic dehydration(Department of Forest Products and Utilisation, OUAT, Bhubaneswar, 2022-04-25) Mohanty, Simran; Panda, C.M.An experiment entitled “Enhancing the shelf life of Jackfruit ( Artocarpus heterophyllus L.) by osmotic dehydration” was conducted in the Post-harvest laboratory of the Department of Fruit Science and Horticulture Technology, College of Agriculture, Bhubaneswar during the year 2021-2022. The research was carried out in Complete Randomized Block Design with eight treatments and three replications. The details of the treatments were post harvest applications of - 30° Brix sugar syrup (T1), 35° Brix sugar syrup (T2), 40° Brix sugar syrup (T3), 45° Brix sugar syrup (T4), 50° Brix sugar syrup (T5), 55° Brix sugar syrup (T6), 60° Brix sugar syrup (T7) and Control (T8). Observations were recorded upto 4 months until the treated jackfruit cloves were completely spoiled. Data on biochemical parameters viz. acidity, moisture loss, total sugar, reducing sugar, non reducing sugar, beta carotene, vitamin C, organoleptic quality and microbial presence were analyzed statistically. From this experiment, it was concluded that jackfruit cloves treated with 60° Brix sugar syrup (T7) showed highest level of acidity (0.39%), moisture content (15.03%), total sugars (42.33%), reducing sugars (7.30%), beta carotene (62.77 μgm/gm) ,vitamin C (4.33 mg/100gm). But jackfruit cloves treated with 50°brix sugar syrup (T5) are at par with the 60°brix treatment (T7) w.r.t the above result parameters viz. acidity (0.33%), moisture content (14.80%), vitamic C (3.60 mg/100gm), beta carotene (52.13 μgm/gm), reducing sugar (6.43%), total sugar (35.33%) respectively. So far as the organoleptic quality and keeping quality is concerned the treatment with 50°Brix sugar syrup (T5) exhibited significantly higher value (6.80) with a lowest microbe count(2.00) than any other treatment after 04 months of storage. As these two are the important commercial qualities from customer point of view, hence the treatment 50°Brix sugar syrup (T5) is to be considered the best among them.
