scholarly journals Distribution of Endogenous Indole-3-Acetic Acid and Compression Wood Formation in Reoriented Branches of Douglas-Fir

1989 ◽  
Vol 91 (1) ◽  
pp. 338-344 ◽  
Author(s):  
Brayton F. Wilson ◽  
Ching-Te Chien ◽  
Joe B. Zaerr
Keyword(s):  
Acetic Acid ◽  
Compression Wood ◽  
Wood Formation ◽  
Douglas Fir ◽  
Indole 3 Acetic Acid

Induction of Compression Wood in Rooted Cuttings of Pseudotsuga Menziesii (MIRB.) Franco by Indole-3-Acetic Acid

IAWA Journal ◽  
1986 ◽  
Vol 7 (1) ◽  
pp. 13-16 ◽  
Author(s):  
Christopher J. Starbuck ◽  
John E. Phelps
Keyword(s):  
Acetic Acid ◽  
Pseudotsuga Menziesii ◽  
Compression Wood ◽  
Wood Formation ◽  
Lower Side ◽  
Rooted Cuttings ◽  
Terminal Bud ◽  
Auxin Content ◽  
Transverse Gradient ◽  
Indole 3 Acetic Acid

A study was conducted to determine if exogenously applied indole-3-acetic acid would stimulate symmetric or asymmetric compression wood formation in stems of rooted cuttings of Pseudotsuga menziesii (Mirb.) Franco. Dormant two-year-old rooted cuttings were decapitated one cm below the terminal bud and treated with IAA in lanolin emulsion. Plants treated with IAA at 1 or 10 mg/g concentrations produced up to 25 rows of new xylem cells during the three week treatment period, while control plants produced essentially none. Compression wood formation was greater on the upper (originally adaxial) than on the lower side of the stem. The results support the hypothesis that basal curvature of rooted Douglas-fir cuttings is the result of a system developing a transverse gradient in auxin content in the stem leading to asymmetric compression wood formation.

Distribution of Indole-3-acetic Acid and Compression Wood Formation in the Stems of InclinedCryptomeria japonica

Holzforschung ◽  
1990 ◽  
Vol 44 (5) ◽  
pp. 331-334 ◽  
Author(s):  
Ryo Funada ◽  
Etsuko Mizukami ◽  
Takafumi Kubo ◽  
Masami Fushitani ◽  
Tamizi Sugiyama
Keyword(s):  
Acetic Acid ◽  
Compression Wood ◽  
Wood Formation ◽  
Indole 3 Acetic Acid

scholarly journals Indole-3-acetic Acid in Douglas Fir

1976 ◽  
Vol 58 (3) ◽  
pp. 299-303 ◽  
Author(s):  
David R. Deyoe ◽  
Joe B. Zaerr
Keyword(s):  
Acetic Acid ◽  
Douglas Fir ◽  
Indole 3 Acetic Acid

Sinuous stem growth in a Douglas-fir (Pseudotsuga menziesii) plantation: growth patterns and wood-quality effects

2000 ◽  
Vol 30 (5) ◽  
pp. 761-768 ◽  
Author(s):  
R Spicer ◽  
B L Gartner ◽  
R L Darbyshire
Keyword(s):  
Pseudotsuga Menziesii ◽  
Compression Wood ◽  
Wood Quality ◽  
Radial Distance ◽  
Wood Properties ◽  
Wood Formation ◽  
Douglas Fir ◽  
Growth Patterns ◽  
Internode Length ◽  
Tree Biomechanics

Stem sinuosity is thought to negatively impact wood quality, but no studies have characterized its vertical and radial effects on wood properties. Here we study wood quality along the entire stem in 25-year-old plantation-grown Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) trees (32 trees total) that had been scored for sinuosity at age 12. We also study compression wood formation in the radial direction for one internode that had been scored for sinuosity at age 12 and subsequently produced 13 more annual rings. Trees with highly sinuous leaders at age 12 were more likely to be sinuous in other years, and developed more slope of grain defect (approximately 15% log volume) than less sinuous trees, but did not differ in the size of the pith-containing core. Leaders originally scored as highly sinuous developed more compression wood than control trees but only near the pith. Internode length did not differ among sinuosity classes. The size of the pith deviations (radial distance from centreline) remained constant up the stem despite a decline in internode length. However, the frequency of pith deviations was highest at 10-15 years, when internode length reached a peak. The relationship between temporal patterns of growth rate, sinuosity, and tree biomechanics deserves further attention.

scholarly journals Determination of Indole-3-acetic Acid in Douglas Fir Using a Deuterated Analog and Selected Ion Monitoring

1978 ◽  
Vol 62 (6) ◽  
pp. 841-845 ◽  
Author(s):  
John L. Caruso ◽  
Ronald G. Smith ◽  
Lawrence M. Smith ◽  
Tsai-Ying Cheng ◽  
G. Doyle Daves
Keyword(s):  
Acetic Acid ◽  
Douglas Fir ◽  
Selected Ion Monitoring ◽  
Deuterated Analog ◽  
Indole 3 Acetic Acid

Induced compression wood formation in Douglas fir (Pseudotsuga menziesii) in microgravity

2001 ◽  
Vol 57 (6) ◽  
pp. 847-857 ◽  
Author(s):  
Mi Kwon ◽  
Diana L. Bedgar ◽  
William Piastuch ◽  
Laurence B. Davin ◽  
Norman G. Lewis
Keyword(s):  
Pseudotsuga Menziesii ◽  
Compression Wood ◽  
Wood Formation ◽  
Douglas Fir
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