Thumbnail Image

Thesis

Browse

2014 - 20153
Reset filters
Subject: Forestry × End date: 2017 × Start date: 2010 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 3 of 3
  • Thumbnail Image
    ThesisItemOpen Access
    STUDIES ON MOISTURE CONSERVATION STRUCTURES AND COMPOST CULTURE ON GROWTH PERFORMANCE OF Acacia auriculiformis A. cunn. PLANTATION IN HILLY AREA
    (University of Agricultural Sciences Dharwad, 2015-07) SAUDAN SINGH; Dr. K. S. CHANNABASAPPA
    A field experiment was carried out at Siddapur forest area, Uttar Kannada district during 2014-15 on “Studies on moisture conservation structures and compost culture on growth performance of Acacia auriculiformis plantation in hilly area” The results indicated that significantly higher plant height (8.78 m), diameter at breast height (7.10 cm) and number of branches per plant (20.05) was recorded in ring basin with 75 g compost culture + 3 kg litter at 9 MAT. Soil moisture content in 0-30 cm depth (10.26 %) significantly higher in the treatment receiving ring basin + 3 kg litter at 9th month, over the other treatments. Among interaction treatments, ring basin with 75 g compost culture + 3 kg litter recorded significantly higher organic carbon (0.87 %), soil pH (5.92), available nitrogen (469.3 kg/ha), potassium (54.83 kg/ha) over the other treatments but in ring basin with 100 g PSB + 3 kg litter recorded significantly higher available phosphorus (19.18 kg/ha) compared to other treatments. The results of laboratory experiment on litter decomposition rate, indicated that significantly higher bacterial (CFU x 106/g), fungal (CFU x 104/g) and actinomycetes (CFU x 102/g) population were observed in 75 g compost culture + 2 kg litter (96.17 and 223.05), (18.17 and 97.50) and (44.28 and 199.27) at 30 and 120 DAI, respectively over control. The highest temperature was recorded in 75 g compost culture + 2 kg litter (26.74 0C and 31.52 0C) at 30 and 120 DAI, respectively over control. Significantly higher volume reduction of leaf litter was noticed in 75 g compost culture + 2 kg litter (135 and 1569 cm3) at 30 and 120 DAI, respectively. Significantly lower litter volume reduction was noticed in control (2.33 and 975.13 cm3) at 30 and 120 DAI, respectively.
  • Thumbnail Image
    ThesisItemOpen Access
    EFFECT OF WATERSHED MANAGEMENT PRACTICES ON GROWTH AND PRODUCTIVITY OF Acacia auriculiformis PLANTATION
    (University of Agricultural Sciences Dharwad, 2015-06) TAGE MOONYA; Dr. SOMASHEKAR L. MADIWALAR
    Effect of watershed management practices on one year old Acacia auriculiformis plantations grown under varied slope gradient viz. low (<5%), medium (5-10%) and high slope (>10%) was carried out. Observations on growth parameters like total plant height, collar diameter, number of branches, crown diameter, basal area per hectare and volume per hectare etc. were recorded in 10 m  8 m sample plots and average data per hectare was calculated. Acacia auriculiformis plantations raised on the mini terrace in low slope had significantly higher plant height than that in other moisture conservation structures at higher slope at all stages of 3, 6 and 9 MAT. Total plant height was significantly higher in low slope gradient (2.68 m) than in medium (2.23 m) and high slope gradient (2.05 m) at 9 MAT treatment. Similar trend was observed at 3 and 6 MAT. Total tree height was significantly higher in mini terrace (3.33 m), followed by staggered trench (2.89 m), continuous contour trench (2.09 m), half ring basin (1.79 m) and least was found in control (1.5 m). Similarly, volume of tree per hectare was significantly higher in low slope (3.95 m3/ha) than in medium (2.50 m3/ha) and high slope gradient (1.72 m3/ha). Volume of tree per hectare was significantly higher in mini terrace (6.23 m3/ha) than in other moisture conservation techniques and control (0.65 m3/ha) after 9 MAT. Cost involved for earthwork was maximum in mini terracing ( 29,910 ) and was followed by half ring basin ( 19,940), continuous trench ( 12,462.5) and staggered trench ( 4985). Higher conserved moisture in low slope and higher capacity of mini terrace to store runoff water due to more surface area have contributed to higher productivity.
  • Thumbnail Image
    ThesisItemOpen Access
    STANDARDIZATION OF NURSERY TECHNIQUES IN Lagerstroemia lanceolata Wall.
    (University of Agricultural Sciences Dharwad, 2014-11) CHAYA K. B.; Dr.K.S.CHANNABASAPPA
    Lagerstroemia lanceolata belongs to family Lythraceae. It is one of the important species from genus Lagerstroemia. Timber is most economical part of this species. It is a valuable and important timber tree, much in demand and provides one of the best of the woods of western India. The demand for nursery grown seedling of Lagerstroemia lanceolata has increased immensely for planting under agroforestry programme and massive afforestation programme taken up by the government agencies. Poor natural regeneration, low rate of seed germination has lead to scarcity of these species in its natural habitat. Keeping these points in view the present study was carried out at College of Forestry, Sirsi during 2013-2014. In the present study, twelve pre-sowing treatments tried to improve seed germination, seeds treated with GA3 100 ppm for 12 hour recorded significantly maximum seed germination (17.33 %) and also with respect to mean daily germination, peak value, germination value, germination rate over control. Among different manures and fertilizers, application of PSB (10 g) + Mycorrhizae (10 g) + NPK (1 g each) significantly increased seedling growth attributes viz seedling height, collar diameter, number of leaves and leaf area by 29.58, 28.30, 25.03 and 63.18 per cent respectively over control, also number of lateral roots, length of lateral roots, chlorophyll content, total fresh weight and total dry weight increased by 60.31, 51.69, 52.10, 37.15 and 56.98 per cent due to same treatment at 180 days after planting over control. Hence fertilizers can be used in combination of biofertilizers to get good quality seedlings.