Thumbnail Image

Theses

Browse

2017 - 20183
Reset filters
Subject: Forestry × End date: 2018 × Start date: 2010 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 3 of 3
  • Thumbnail Image
    ThesisItemOpen Access
    Performance of winter crops under different planting geometry of Mahaneem (Ailanthus excelsa Roxb.)
    (CCSHAU, 2018) Kajal; Kaushik, Naresh
    A field experiment was conducted at Research Area of CCS Haryana Agricultural University Regional Research Station, Bawal during winter of 2016-17 to study the effect of different plant geometries, i.e., 10×20, 10×10, 10×6.5 and 10×5 m of Mahaneem on growth, yield and its parameters of wheat and mustard. The biomass and carbon sequestration were also estimated. Mahaneem attained the maximum DBH (19.95 cm) and crown spread (6.19 m) under 10×20 m plant geometry. However, the maximum plant height (6.83 m) was obtained under 10×5 m plant geometry. Higher biomass (28.63 t/ha) and carbon sequestration (13.13 t/ha/yr) in Mahaneem was recorded under 10×5 m plant geometry, whereas, the maximum carbon sequestration (16.5 t/ha/year) was recorded in Mahaneem + wheat agro-forestry system under 10×5 m plant geometry. Different plant geometries of Mahaneem did not affect the growth (plant height) of winter crops but affected the yield significantly under close geometry, i.e., 10×5 and 10×6.5 m. Among all the plant geometries, the plant geometry of 10×20 m exhibited higher yield and yield attributes such as number of effective tillers, siliquae per plant, number of grains per spike/siliqua, test weight, grain yield, straw/stover yield, root weight and total biomass of winter crops. Soil EC and pH decreased considerably under agro-forestry based systems. The available nitrogen, phosphorus and potassium increased over the control (sole crop). The agri-silvi system of Indian mustard + Mahaneem with plant geometry of 10×5 m was found most remunerative, as the maximum net returns (Rs.100140/-) and benefit to cost ratio (2.84) was observed with this system. Fuel wood and fodder from Mahaneem compensated the reduction of crop yield and resulted in higher returns in association with arable crops.
  • Thumbnail Image
    ThesisItemOpen Access
    Performance of field crops and eucalyptus clones under agri-silviculture system
    (CCSHAU, 2018) Ashish Kumar; Dhillon, R.S.
    The present investigation entitled ―Performance of field crops and eucalyptus clones under agri-silvicultural system‖ was carried out at research area of Forestry Department, CCS Haryana Agricultural University, Hisar during kharif and rabi seasons of 2016-17. The experiment was carried out to study the effect of different eucalyptus clones (C-83, C-7, C-413 and C-288) on the performance of field crops (cowpea and barley) as well as changes in chemical properties of soil. The maximum plant height (9.69 m), basal diameter (12.37 cm) and diameter at breast height (9.52 cm) was recorded in eucalyptus clone C-413. However, the maximum (2.36 m) crown width was attained by C-288 clone. Plant population, plant height, fresh leaves and stem weight, green fodder and dry matter yield of cowpea were found significantly higher under C-83 as compared to other clones under study. The crude protein yield of cowpea was also recorded higher under C-83 (1.02 t/ha) clone while percent crude protein of cowpea was recorded maximum (12.20 %) under C-413 clone. Different growth parameters viz. plant population, number of tillers, number of spikes, number of grains per spike, test weight of barley was of barley also found higher under C-83 clone as compared to other clones. Plant height of barley at different stages of growth was observed significantly higher under the plantation of C-83 and C-288. The grain, straw and biological yield of barley were observed higher under C-83 clone. The soil pH and EC deceased more under plantation of eucalyptus clones over control (sole crop). A considerable increase in soil organic carbon and available N, P and K content was also observed under eucalyptus based agri-silvicultural system than under control (devoid of trees).
  • Thumbnail Image
    ThesisItemOpen Access
    Effect of arbuscular mycorrhizal fungi on growth and physiological responses of water stressed Azadirachta indica A. Juss seedlings
    (CCSHAU, 2017) Paulina Pomwene Fendinat; Beniwal, R.S.
    An experiment was carried out to study effects of arbuscular mycorrhizal fungi (Glomus mosseae) on water stressed Azadirachta indica A. Juss seedlings under a controlled nursery experiment. The experiment was conducted with the aim of investigating the effect of AM on germination, growth and physiological traits and also to evaluate the effect of AM fungi in tolerating water stress. The experiment comprised of two treatments; AM -inoculated and non-inoculated plants, of which about 3 months old neem seedlings were subjected to water stress for 63 days by withholding water till plant lower leaves showed wilting symptoms. G. mosseae inoculation slightly enhanced germination percentage of neem seeds against the un-inoculated treatments. Water stress exhibited significant and varied reductions in various morphological parameters such as collar diameter, shoot and root length, plant biomass, number of leaves, leaf thickness, leaf area and specific leaf area in both treatments with significant reductions observed more in un-inoculated than AM -seedlings. G. mosseae symbiosis maintained significantly more periodic increment in shoot length and root collar diameter in AM -inoculated plants during water stress period. Water stress significantly decreased photosynthetic pigments, relative water content, however, increased relative stress injury with severe reductions was observed in un-inoculated plants. AM -inoculated plant showed prompt recovery during water resumption period in photosynthetic pigments, plant hydration level, and also showed reduced stress injury compared to un-inoculated plants. Proline and soluble carbohydrate were significantly accumulated more in un-inoculated plant leaves during water stress, whereas AM protected water stressed seedlings from massive oxidative damage by maintaining low level of proline and sugar accumulation in AM -plant leaves compared to un-inoculated neem leaves. Soil amended with AM fungi retained better moisture content during water stress as well as a higher significant P uptake in water stressed treatments, compared to N and K uptake. Water stress inhibited mycorrhizal multiplication and significantly reduced AM abundance in plant roots. However, 7 days after re-watering, mycorrhizal abundance in neem roots improved. Although, water stress caused reduction in mycorrhizal abundance and growth, AM -inoculation considerably maintained plant growth performance. Overall, this study concluded that utilization of G. mosseae inoculation practices in forest nurseries will immensely assist plants in overcoming water stress and in the production of healthy and vigorous Azadirachta indica seedlings, which will be of great help in overcoming bottleneck issues of aggressive re-forestation programs in degraded, arid as well as semi-arid areas.