EFFECT OF SEASONING ON THE WOOD PROPERTIES OF WILLOW CLONES

Simple item page
dc.contributor.advisorBHUPENDER DUTT
dc.contributor.authorFARKHANDA, PARSA
dc.date.accessioned2021-11-02T08:43:23Z
dc.date.available2021-11-02T08:43:23Z
dc.date.issued2021-10
dc.description.abstractABSTRACT The present work entiltled “Effect of seasoning on the wood properties of Willow clones” was conducted in the Laboratory and Wood Workshop of the Department of Forest Products, College of Forestry, Dr. Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, during 2019-20 and 2020-21. Seasoning of logs was done in air and water for a period of eight months. The study revealed significant variation in physico-chemical and mechanical properties of seasoned wood of Salix clones. Among different clones, the highest value of moisture content (49.36%) was recorded in 131/25 and minimum (43.42%) in NZ-1130. Among treatments, the highest value of moisture content (113.45%) was recorded in green wood (T0) and minimum (12.11%) in air seasoned wood (T1). Among clones, the highest maximum moisture content (167.32%) was recorded in 131/25 and minimum (125.28%) in J799. The highest maximum moisture content (149.68%) was recorded in water seasoned (T2) and minimum (138.72%) in green wood (T0). Among clones, maximum specific gravity (0.560) was recorded in J799 and minimum (0.488) in NZ-1179. The maximum specific gravity (0.535) was recorded in T1 and minimum (0.492) in T0. Among clones, the maximum value of radial (3.43%), tangential (6.92%), longitudinal (0.68%) and volumetric (11.02%) swelling was recorded in J799, while minimum radial (2.09%), tangential (5.66%), longitudinal (0.32%) and volumetric (8.06%) swelling was recorded in 131/25. The maximum value of radial (4.57%), tangential (10.22%), longitudinal (0.71%) and volumetric (15.50%) swelling was recorded in T0, while minimum radial (1.63%), tangential (3.80%), longitudinal (0.28%) and volumetric (5.71%) swelling was recorded in T2. Among the clones, maximum value of radial (2.70%), tangential (6.62%), longitudinal (0.68%) and volumetric (9.99%) shrinkage was recorded in T0, while minimum radial (1.96%), tangential (4.46%), longitudinal (0.30%) and volumetric (6.98%) shrinkage was recorded in T2. The maximum value of radial (3.82%), tangential (8.92%), longitudinal (0.82%) and volumetric (13.55%) shrinkage was recorded in T0, while minimum radial (1.51%), tangential (3.56%), longitudinal (0.36%) and volumetric (5.43%) shrinkage was recorded in T2. The maximum hot (9.40%) and cold (6.47%) water extractives were recorded in 131/25 and minimum hot (5.57%) and cold (4.35%) water extractives were recorded in NZ-1130. The maximum alcohol benzene extractives (4.13%) were recorded in 131/25 and minimum (2.34%) in J194. The maximum holocellulose content (78.16%) was recorded in 131/25 and minimum (69.49%) in J799. The maximum lignin content (27.82%) was recorded in J799 and minimum (16.35%) in 131/25. The maximum hot water extractives (8.52%), cold water extractives (7.12%), alcohol benzene extractives (3.84%) and holocellulose content (75.35%) were recorded in control (T0), while the minimum hot water extractives (6.33%), cold water extractives (3.76%), alcohol benzene extractives (1.85%) and holocellulose content (72.05%) were recorded in T2. The maximum value of tensile strength (0.074 kN/mm2), bending strength (0.009 kN/mm2), compressive strength parallel to the grain (0.055 kN/mm2) and compressive strength perpendicular to the grain (0.018 kN/mm2) was reported in J799. The minimum value of tensile strength (0.040 kN/mm2), bending strength (0.004 kN/mm2), compressive strength parallel to the grain (0.033 kN/mm2) and compressive strength perpendicular to the grain (0.005 kN/mm2) was reported in 131/25. The maximum value of tensile strength (0.065 kN/mm2), bending strength (0.007 kN/mm2), compressive strength parallel to the grain (0.050 kN/mm2) compressive strength perpendicular to the grain (0.015 kN/mm2) was reported in T1. The minimum value of tensile strength (0.052 kN/mm2), bending strength (0.006 kN/mm2), compressive strength parallel to the grain (0.042 kN/mm2) and compressive strength perpendicular to the grain (0.010 kN/mm2) was reported in T0. In case of clones maximum, modulus of rupture (0.197 kN/mm2), tension modulus of elasticity (4427.50 MPa), compression parallel to the grain modulus of elasticity (1238.89 MPa), compression perpendicular to the grain modulus of elasticity (413.89 MPa) and bending modulus of elasticity (116.38 MPa) was reported in J799. The minimum modulus of rupture (0.197 kN/mm2), tension modulus of elasticity (2579.17 MPa), compression parallel to the grain modulus of elasticity (752.78 MPa), compression perpendicular to the grain modulus of elasticity (148.61 MPa) and bending modulus of elasticity (51.94 MPa) was observed in 131/25. In case of treatments, maximum, modulus of rupture (0.166 kN/mm2), tension modulus of elasticity (4402.13 MPa), compression parallel to the grain modulus of elasticity (1331.67 MPa), compression perpendicular to the grain modulus of elasticity (403.33 MPa) and bending modulus of elasticity (103.58 MPa) was reported in air seasoned wood (T1). In case of treatments, minimum modulus of rupture (0.120 kN/mm2), tension modulus of elasticity (2040.83 MPa), compression parallel to the grain modulus of elasticity (558.33 MPa), compression perpendicular to the grain modulus of elasticity (145.28 MPa) and bending modulus of elasticity (56.94 MPa) was reported in green wood (T0).en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810177670
dc.keywordswood properties , Willow clones, Wood Workshopen_US
dc.language.isoEnglishen_US
dc.pages94+Ien_US
dc.publisherUHF,NAUNIen_US
dc.subForest Productsen_US
dc.themewood properties , Willow clones, Wood Workshopen_US
dc.these.typeM.Scen_US
dc.titleEFFECT OF SEASONING ON THE WOOD PROPERTIES OF WILLOW CLONESen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
PDF M.Sc. PARSA FARKHANDA (WOOD SCIENCE AND TECHNOLOGY ) 202.pdf
Size:
5.88 MB
Format:
Adobe Portable Document Format
Description:
FOREST PRODUCTS
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Theses