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Title: Paraquat-induced lightwood in two European conifers - Scotch pine and Norway spruce

Abstract

Paraquat treatment induced oleoresin-soaked lightwood in Scotch pine; borehole and ax-frill treatment methods were equally effective. Paraquat treatment of Norway spruce induced limited lightwood formation accompanied by heavy external oleoresin exudation. Thus paraquat treatment of Scotch pine and possibly Norway spruce could be commercially advantageous for increasing naval stores production from these species. Analysis of tall oil precursors (nonvolatile ether extractives) for resin acids, fatty acids, and nonsaponifiables showed that the increase from paraquat treatment was mainly from an increased resin acid content. The chemical composition of the resin acids from the lightwood and control wood areas was similar and consisted of the usual pimaric and abietic type resin acids found in conifers. The fatty acids were predominately unsaturated C/sub 18/ isomers. Turpentine of both species consisted mainly of ..cap alpha..-pinene, ..beta..-pinene, and 3-carene. The composition of the turpentine from the Scotch pine lightwood did not differ from that of the control wood. However, turpentine from the Norway spruce lightwood had an increased 3-carene content compared to that from the control.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Forest Products Lab., Madison, WI
OSTI Identifier:
5528881
Alternate Identifier(s):
OSTI ID: 5528881
Resource Type:
Journal Article
Journal Name:
Wood Sci.; (United States)
Additional Journal Information:
Journal Volume: 10:4
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; CARBOXYLIC ACIDS; RECOVERY; OLEORESINS; PINES; PROCESSING; RESINS; TERPENES; TURPENTINE; WOOD; CHEMICAL COMPOSITION; CONIFERS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; ORGANIC SOLVENTS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLANTS; POLYMERS; SOLVENTS; TREES 140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)

Citation Formats

Wroblewska, H., Conner, A.H., Rowe, J.W., Peters, W.J., and Roberts, D.R. Paraquat-induced lightwood in two European conifers - Scotch pine and Norway spruce. United States: N. p., 1978. Web.
Wroblewska, H., Conner, A.H., Rowe, J.W., Peters, W.J., & Roberts, D.R. Paraquat-induced lightwood in two European conifers - Scotch pine and Norway spruce. United States.
Wroblewska, H., Conner, A.H., Rowe, J.W., Peters, W.J., and Roberts, D.R. Sat . "Paraquat-induced lightwood in two European conifers - Scotch pine and Norway spruce". United States.
@article{osti_5528881,
title = {Paraquat-induced lightwood in two European conifers - Scotch pine and Norway spruce},
author = {Wroblewska, H. and Conner, A.H. and Rowe, J.W. and Peters, W.J. and Roberts, D.R.},
abstractNote = {Paraquat treatment induced oleoresin-soaked lightwood in Scotch pine; borehole and ax-frill treatment methods were equally effective. Paraquat treatment of Norway spruce induced limited lightwood formation accompanied by heavy external oleoresin exudation. Thus paraquat treatment of Scotch pine and possibly Norway spruce could be commercially advantageous for increasing naval stores production from these species. Analysis of tall oil precursors (nonvolatile ether extractives) for resin acids, fatty acids, and nonsaponifiables showed that the increase from paraquat treatment was mainly from an increased resin acid content. The chemical composition of the resin acids from the lightwood and control wood areas was similar and consisted of the usual pimaric and abietic type resin acids found in conifers. The fatty acids were predominately unsaturated C/sub 18/ isomers. Turpentine of both species consisted mainly of ..cap alpha..-pinene, ..beta..-pinene, and 3-carene. The composition of the turpentine from the Scotch pine lightwood did not differ from that of the control wood. However, turpentine from the Norway spruce lightwood had an increased 3-carene content compared to that from the control.},
doi = {},
journal = {Wood Sci.; (United States)},
number = ,
volume = 10:4,
place = {United States},
year = {1978},
month = {4}
}