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Thesis

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2014 - 20167
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Subject: Silviculture and Agroforestry × End date: 2016 × Start date: 2014 × Type: Thesis × Thesis Type: M.Sc ×
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Now showing 1 - 7 of 7
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    ThesisItemOpen Access
    Integrated Nutrient Management in Flemingia semialata W.T. Aiton Plantation
    (University of Agricultural Sciences, Dharwad, 2016-07) Deepak Kumar; Channabasappa, K. S.
    Flemingia semialata W. T. Aiton has emerged one of the most suitable lac host plant which is bushy in nature and quick growing, and more importantly lac cultivation can be started from second year on commercial basis. Application of balanced quantity of nutrient is one of the key factor to ensure healthy growth and maintain the nutrient balance of soil and to obtain higher lac yield of Flemingia. A field experiment was carried out at Agriculture Research Station, Malagi, Uttara Kannada district during 2015-16 on “Integrated Nutrient Management in Flemingia semialata W.T. Aiton Plantation”. The experiment was conducted in randomized complete block design with ten treatments and three replications. Among the different treatments tried combine application of farm yard manure (2 kg/plant) + 175:100:50 NPK kg/ha has recorded significantly maximum plant height (221.13 cm), collar diameter (22.08 mm), number of shoots,(11.93), number of infected shoots,(11.93), length of infected shoots (112.01 cm), lac yield (2273.33 kg/ha), Soil moisture content (15.47 %), available soil nitrogen (195.0 kg/ha), available soil phosphorous (54.63 kg/ha) and available soil potassium (105.3 kg/ha) compare to other treatments. The results were attributed due to the application of optimum levels of organic manure and varied nitrogen levels. The results suggested that NPK @175:100:50 kg/ha with combination of FYM @ 2 kg/plant recorded higher growth parameters, yield parameters as well as maximum lac yield. Application of (FYM 2 kg/plant) + 175:100:50 NPK kg/ha also recorded on par lac yield.
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    ThesisItemOpen Access
    Influence of Seed Sources, Storage Conditions and Containers on Seed Germination and Quality in Simarouba glauca
    (University of Agricultural Science, Dharwad, 2015-08) Chavan, Vinita; Chavan, Raju l.
    The investigation on “Influence of seed sources, storage conditions and containers on seed germination and quality in Simarouba glauca” was conducted at College of Forestry, Sirsi. The study was laid by fallowing completely randomized with four replication and three factorial designs with tree replication for six seed sources. The Dharwad seed source was found highest with respect to seed and kernel weight (12.20, 28.98 g), seed and kernel density (44.84, 22.76). Davangere seed source exhibited highest volume and kernel (184.92, 53.00 mm3). However, Bengaluru seed source recorded the least for both seed and kernel parameters. Maximum germination was recorded in Dharwad seed source (93.5 %) and least was recorded in Davangere (84.25%). Highest seedling length was recorded in Dharwad seed source (19.1 cm) and Bengaluru seed source (17.1 cm) and least was in Bijapur seed source (6.25mm, 31.25 cm) and Bengaluru (5.86 mm, 28.15 cm). At 12 months after sowing, the shoot length and root length traits were highest in Dharwad and Bengaluru (31.50 cm, 30.00 cm) and lowest in seed source of Bijapur (25.65 cm, 41.20 cm). The highest seedling fresh weight and dry (79.35 g, 22.45 g) was recorded in Dharwad seed source followed by Bengaluru seed source (79.20 g, 22.17 g). At 150 days of storage, the highest germination per cent was recorded by cloth bag with cold condition and poly bag with cold condition in Bengaluru seed source (49.00 %, 43.92 %) , while the least was recorded in seed source of Davangere (44.40 %, 39.96 %). Thus the Dharwad and Bengaluru seed sources were most promising with respect to seed and seedling traits whereas Cloth bag with cold condition on were found superior for germination. The best seed sources needed to be conserved for further improvement work.
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    ThesisItemOpen Access
    Growth and Productivity of Melia Dubia Under Different Plant Density
    (University of Agricultural Science, Dharwad, 2015-07) Karatangi, Kirankumar G.; Patil, H.Y.
    Melia dubia is a multipurpose tree species with wide adoptability belongs to family meliaceae. However, there are very meagre studies on field performance. Hence, the growth and productivity was assessed with various plants densities by considering growth parameters, wood samples and soil samples at different time intervals. The results revealed significant variation for all the growth parameters with respect to different plant densities at various time intervals. Maximum girth, height and increment (both girth and height) was found in plant density of 714 trees/ha and was least in 2500 trees/ha. Volume (m3/tree) showed significant differences in different planting densities at all time intervals. Maximum volume for individual trees were found in planting density of 833 trees/ha and least was found in 2500 trees/ha. Whereas the volume (m3/ha) for block plantation showed contrary results with maximum in planting density of 2500 trees/ha followed by 1000 trees/ha, 833 trees/ha and least was in 625 trees/ha. The data on carbon sequestration was significantly higher in planting density of 2500 trees/ha followed by 1666 trees/ha, 1250 trees/ha, 1000 trees/ha and 833 trees/ha and least was in 625 trees/ha. The effect of plant density showed significant variation on soil chemical properties such as soil organic carbon and available phosphors. However, the effect was found to be non-significant for pH, EC, available nitrogen and potassium. Maximum organic carbon and available phosphorus was found in planting density of 1000 trees/ha (0.82 % and 27.4 kg/ha) and least was in 2500 trees/ha (0.52 % and 21.3 kg/ha). The findings of the present experiment, therefore supports the notion that Melia dubia plays a significant role in increasing the overall growth and productivity at lower planting densities such as 1000, 833, 714 and 625 trees/ha and considered to be better species for improving soil fertility and organic carbon.
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    ThesisItemOpen Access
    EFFECT OF INTEGRATED NUTRIENT MANAGEMENT PRACTICES ON EARLY GROWTH (2nd YEAR) OF RUBBER (Hevea brasiliensis) PLANTATION
    (University of Agricultural Sciences, Dharwad, 2015-06) PRADEEP, K. P.; MANJAPPA, K.
    An experiment was conducted during 2014-15 on farmers field in Uttara Kannada district to know the effect of integrated nutrient management practices on early growth of young (2nd year) rubber (Hevea brasiliensis) plantation with three levels of farm yard manure (no FYM, 5 kg FYM/plant and 10 kg FYM/plant) and three levels of inorganic fertilizers (50:50:25; 100:100:50 and 150:150:75 g NPK/plant). Among the different levels of FYM, application of FYM @ 10 kg/plant has recorded significantly higher plant height (136.78 cm), collar diameter (30.54 mm), crown diameter (61.25 cm), number of leaves/plant (46.18) and number of whorls/plant (3.13). Among the different levels of inorganic fertilizers, application of NPK @ 150:150:75 g/plant has recorded significantly higher plant height (131.80 cm), collar diameter (30.31 mm), crown diameter (58.30 cm), number of leaves/plant (44.09) and number of whorls/plant (2.86). Among the interaction of organic manure and inorganic fertilizers, combination of FYM @ 10 kg/plant + NPK @ 150:150:75 g/plant recorded maximum plant height (143.42 cm), collar diameter (31.89 mm), crown diameter (64.05 mm), number of leaves/plant (47.62) and number of whorls/plant (3.33) compared to all other combinations. The soil properties viz., soil pH (5.30), electrical conductivity (0.32 dsm-1), organic carbon (0.57%), available nitrogen (156.1 kg/ha), phosphorus (8.87 kg/ha) and potassium (70.86 kg/ha) were also significantly higher with the application of FYM @ 10 kg/plant compared to other levels. Among the different levels of inorganic fertilizers, application of NPK @ 150:150:75 g/plant has recorded significantly higher electrical conductivity (0.25 dsm1), available nitrogen (152.5 kg/ha), phosphorus (8.74 kg/ha) and potassium (69.43 kg/ha). Among the interaction of organic manure and inorganic fertilizers, combination of FYM @ 10 kg/plant + NPK @ 150:150:75 g/plant recorded maximum pH (5.31), electrical conductivity (0.34 dsm-1), organic carbon (0.57 %), available nitrogen (159.6 kg/ha), phosphorus (9.13 kg/ha) and potassium (73.20 kg/ha).
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    ThesisItemOpen Access
    EFFECT OF STOCKING DENSITY AND AGE GRADATION ON INCREMENTAL GROWTH AND PRODUCTIVITY OF TEAK PLANTATION
    (University of Agricultural Sciences, Dharwad, 2015-06) SHAIKH, SHAGUFTA A.; MADIWALAR, SOMASHEKAR L.
    The effect of stocking density and age gradation on incremental growth and productivity of teak was studied in three different age gradations, viz., 26, 39 and 49 years across three stocking densities viz., low, medium and high stocking density. Observations on growth parameters like total height, clear bole height, dbh, basal area, clear bole volume and total volume were recorded on trees in 10 X 10 m sample plots and average data per hectare was calculated. Generally, the total tree volume increased with increasing age. The total volume per hectare was significantly higher in the 49 year age gradation (621.62 m3) than in 39 year age gradation (414.48 m3) and 26 year age gradation (81.96 m3). It was significantly higher in high stocking density (422.38 m3) than in low stocking density (332.22 m3) but was statistically on par with medium stocking density (363.45 m3). The CAI in total volume was significantly higher in 26 year age gradation (7.55 m3) than in 49 year age gradation (4.13 m3) but was statistically on par with 39 year age gradation (6.33 m3). CAI in total volume was significantly higher in low stocking density (7.44 m3) than in high stocking density (4.04 m3) but was statistically on par with medium stocking density (6.53 m3). The MAI of total volume was significantly lower in 26 year age gradation (3.15 m3) than in 49 year age gradation (12.69 m3) which was statistically on par with 39 year age gradation (10.63 m3). The high stocking density (9.83 m3) was significantly higher than the low stocking density (7.93 m3) which was on statistically par with medium stocking density (8.70 m3). The value of timber per hectare was higher in the 49 year age gradation ( 14947146) than in 39 year age gradation ( 5943502) and least in 26 year age gradation ( 1033950). The value of timber was higher in the high stocking density ( 7869323) followed by low stocking density ( 7301900) and least in the medium stocking density ( 6753375).
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    ThesisItemOpen Access
    STUDIES ON SEED MATURITY, SEED STORAGE ON GERMINATION AND INTEGRATED NUTRIENT MANAGEMENT ON SEEDLINGS GROWTH OF Myristica malabarica Lam.
    (University of Agricultural Sciences, Dharwad, 2015-07) BIRADAR, PRABHUGOUD I.; NAYAK, G. V.
    The study was carried out to know the variation in seed germination of Myristica malabarica as influenced by different collection time and different storage conditions on seed and germination. In addition, the study also conducted to assess the nutrient management for seedlings at nursery stage. Three separate experiments were conducted at the College of Forestry, Sirsi, during 2013-14. The salient findings of the study are highlighted here. The effect of fruit collection time on fruit, aril, seed and germination parameters was evident in the present study. The time of seed collection showed significant effect on germination per cent, speed of germination, germination value and germination rate. Early collected fruits from M1 to M3 recorded lower values with nil germination than those collected later. The late collection i.e., M6 was considered to be better to get good aril weight and the germination. The seeds stored in three different containers and kept under two storage conditions showed significant effect on moisture and all germination parameters after 7 days to 21 days of storage period. Seed germination declined drastically after 7 days and showed further decline after 14 days of storage period. Seeds stored in cloth bag kept under room temperature was found to be better seed container for storing seeds with relatively more viability. The effect of Integrated Nutrient Management system by imposing different treatment combinations such as organic, inorganic and biofertilizer showed significant effect on all the growth parameters. The treatment T8 consists of common potting media (soil: sand: FYM of 2:1:1 ratio) along with vermicompost and inorganic fertilizer (NPK) influenced the growth of the plants significantly and considered to be best compare to other treatments.
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    ThesisItemOpen Access
    EFFECT OF ELEVATED CARBON DIOXIDE CONCENTRATION ON SEEDLING GROWTH OF Calophyllum inophyllum L. AND Madhuca indica Gmel.
    (University of Agricultural Sciences Dharwad, 2014-08) TAJUM DONI; Dr. G. V. NAYAK
    Calophyllum inophylum and Madhuca indica are the two oil seed bearing tree species having highest oil content in seed 50-73 per cent and 20-50 per cent respectively, which is used for non edible purposes. Hence, these species are considered as promising species for biofuel production. But owing to its slow initial growth rate, it is difficult to raise sizeable planting materials within short duration. In this context to get better plantable, vigorous growing and sturdy seedlings within short duration in the nursery, an experiment on effect of elevated carbon dioxide concentration on seedling growth of Calophyllum inophyllum and Madhuca indica was conducted at college of Forestry, Sirsi during 2013-14. Experiment results showed that, in both the tree species, seedling grown under elevated CO2 concentration (9 Kg FYM equivalent to 768.48 ppm CO2) concentration has recorded significantly higher plant height (17.93 cm, 18.50 cm), collar diameter (4.82 mm, 4.89 mm), number of leaves (15.85, 20.87), leaf area (229.71 cm2, 233.84 cm2) in Calophyllum inophyllum and Madhuca indica respectively over control. After the exposure to elevated CO2 concentration the seedlings were kept for hardening under different shades. Significantly higher plant height (31.03 cm, 35.15 cm), collar diameter (19.08 mm, 19.88 mm), number of leaves (29.91, 33.46) were recorded in Calophyllum inophyllum and Madhuca indica seedling respectively, which were treated with CO2 concentration (9 Kg FYM equivalent to 768.48 ppm CO2) and grown under 75 percent shade, over control.