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2013 - 20153
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Subject: Plantation Technology ×
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    ThesisItemOpen Access
    PLANT ASSEMBLAGES AND THEIR FUNCTIONAL ATTRIBUTES ALONG THE ALTITUDE ATTRIBUTES ALONG THE ALTITUDE ATTRIBUTES ALONG THE ALTITUDE ATTRIBUTES ALONG THE ALTITUDE IN SUB IN SUB IN SUB IN SUB HUMID SUB TEMPERATE HIMALAYA HUMID SUB TEMPERATE HIMALAYA HUMID SUB TEMPERATE HIMALAYA HUMID SUB TEMPERATE HIMALAYA
    (2013) BHAT, AMIR FAROOQ; GUPTA, B.
    ABSTRACT The present investigation entitled “Plant assemblages and their functional attributes along the altitude in sub humid sub temperate Himalaya” was carried out in Sirmour district of Himachal Pradesh during the year 2011-12 with the aim to assess floristic composition, phytosociology, biomass and carbon stock of forests. Five different forests were selected along the altitude viz., Acacia and Chir pine (Sub tropical forests) and Mixed, Deodar and Fir-Spruce (Temperate forests). Structural and functional parameters of trees, shrubs and monthly herbaceous vegetation in each forest were studied by laying down five sample plot of 0.1 ha. These forests comprised of 122 plant species under 113 genera and 53 families. Vegetation indices of vegetation viz., Shannon Weiner, Simpson’s diversity and Species richness exhibited maximum values in Mixed forest, whereas, Species Evenness and Concentration of Dominance were highest in Fir-Spruce and Chir pine forests, respectively. Similarity index among the forests decreased with increase in altitude. Density, basal area and biomass of herbage vegetation in each forest increased till August and decreased thereafter. Shrub biomass was maximum in Deodar and minimum in Chir pine forest. Total biomass of trees in each forest showed the precedence: Mixed forest (348.61 t/ha) > Deodar forest (341.65 t/ha) > Fir-Spruce forest (334.70 t/ha) > Chir pine forest (150.66 t/ha) > Acacia forest (87.36 t/ha). Soil organic carbon (t/ha) was maximum in 0-15 cm and decreased in 15-30 cm depth. Soil organic carbon in 0-30 cm depth decreased in the order: Mixed forest (99.80 t/ha) > Deodar forest (92.67 t/ha) > Fir-Spruce forest (83.52 t/ha) > Chir pine forest (78.54 t/ha) > Acacia forest (72.89 t/ha). Carbon stock accumulation (herbs + shrubs + trees + soil) in different forests followed the precedence: Mixed forest (276.86 t/ha) > Deodar forest (266.70 t/ha) > Fir-Spruce forest (253.65 t/ha) > Chir pine forest (157.16 t/ha) > Acacia forest (122.79 t/ha).
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    ThesisItemOpen Access
    STANDARDISATION OF QUALITY STOCK PRODUCTION FOR BETTER OUTPLANTING PERFORMANCE IN Melia composita Willd.
    (2013) SHARMA, MANEESH; SHAMET, G.S.
    ABSTRACT The present investigation entitled “Standardisation of quality stock production for better outplanting performance in Melia composita willd” was undertaken in the Department of Silviculture and Agroforestry, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan-173230 (HP) during 2011-2012. The study involved two nursery experiment and one outplanting experiments, each laid out in randomized block design (factorial), replicated thrice, to standardize best container type and growing medium and to determine best root pruning and shoot pruning levels to compare the transplanting performance in the nursery. During the present investigation, it has been revealed that seedling raised in polybag of size 9"x4.5"with eight perforations and use of growing medium consisting of soil + sand + compost in ratio of 1:1:2 recorded significantly highest germination (86.67%), growth and biomass production in the seedlings. Furthermore, the seedling raised in this way resulted in enhanced outplanting survival (86.67%), final height (145.67cm) and collar diameter (8.99mm) growth in the species. Similarly, use of root pruning at 11cm and shoot pruning at 15cm in the five months old seedling during end July resulted in significantly highest transplanting survival (72.22%), growth and biomass in the seedling and therefore proved to be the best combination for raising quality stock in the species.
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    ThesisItemOpen Access
    SEED STORAGE STUDIES OF Parkia roxburghii G. DON
    (2015) LANGLENTOMBI, LEISHANGTHEM CHANU; GUPTA, N.K.
    ABSTRACT The present investigation entitled “Seed storage studies of Parkia roxburghii G. Don” was carried out in the laboratories and experimental area of the Department of Silviculture and Agroforestry, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan during the year 2014-2015. Matured and dried seeds were obtained from Manipur. Pure seeds after removing diseased and damaged seeds were put in storage at ambient temperature (T1), 5°C (T2) and -5°C (T3) temperature in pottery pot (C1), airtight plastic container (C2) and canvas bag (C3). The experiment was laid out in randomized block design (factorial) with three replications and storage longevity was determined by subjecting the seeds to germinability studies. Pre-storage observations on germination and physiobiochemical attributes were recorded (both in laboratory and nursery conditions). Observation on germination (both in laboratory and nursery conditions) and physiobiochemical attributes were recorded after every two months interval upto 6 months. In general, a decline in germination and physio-biochemical attributes was observed with increase in storage duration. Seeds stored at 5°C (T2) in airtight plastic container (C2) was proved to be the most suitable method for better longevity of seeds maintaining per cent germination 73.33 per cent and 50.00 per cent till 6 months of storage under laboratory and nursery condition respectively. However seeds stored at -5°C (T3) in canvas bag (C3) proved to be least effective method for longevity of seeds.