Attempt to induce lightwood in balsam fir and tamarack by treating with paraquat

Journal Article · Thu Jul 01 04:00:00 EDT 1976 · Wood Sci.; (United States)

OSTI ID:5097862

Kiatgrajai, P ^[1]; Conner, A H; Rowe, J W; Peters, W; Roberts, D R

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1. Univ. of Wisconsin, Madison

Treatment of balsam fir (Abies balsamea (L.) Mill.) and tamarack (Larix laricina (Du Roi) K. Koch) with the herbicide paraquat did not induce formation of lightwood. However, a dead zone of phloem extended above the paraquat-treatment site. In balsam fir, the wood directly behind the dead zone was particularly heavily attacked by fungi. In both species, traumatic resin ducts were observed in the last several growth rings of wood adjacent to the treatment site. The ether extract of the tamarack, but not of the balsam fir, was essentially oleoresin.

• OSTI ID: 5097862
• Journal Information: Wood Sci.; (United States), Journal Name: Wood Sci.; (United States) Vol. 9:1; ISSN WOSCB
• Country of Publication: United States
• Language: English

Related Subjects

550200 -- Biochemistry
553000 -- Agriculture & Food Technology
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOLOGY
BOTANY
CELL KILLING
CONIFERS
DEATH
ELECTRON MICROSCOPY
FUNGI
GROWTH
HERBICIDES
METABOLISM
MICROSCOPY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PESTICIDES
PETROCHEMICALS
PETROLEUM PRODUCTS
PINES
PLANT CELLS
PLANT GROWTH
PLANTS
POLYMERS
RESINS
SENSITIVITY
TIME DEPENDENCE
TOXICITY
TREE RINGS
TREES
WOOD