Distribution of endogenous indole-3-acetic acid and compression wood formation in reoriented branches of Douglas-fir

• Published in: Plant physiology (Bethesda) Vol. 91; no. 1; pp. 338 - 344
• Main Authors: Wilson, B.F. (University of Massachusetts, Amherst, MA), Chien, C.T, Zaerr, J.B
• Format: Journal Article
• Language: English
• Published: Rockville, MD American Society of Plant Physiologists 01.09.1989
• Subjects: ACIDE INDOLACETIQUE; ACIDO INDOLACETICO; ANALISIS; ANALYSE; Auxins; Biological and medical sciences; BOIS DE REACTION; Branches; Cell walls; Compression wood; DIFERENCIACION; DIFFERENCIATION; Fundamental and applied biological sciences. Psychology; MADERA DE REACCION; Physical agents; Pine trees; Plant physiology and development; Plants; PSEUDOTSUGA MENZIESII; RAMIFICACION; RAMIFICATION; Stems; Surface areas; Tracheids; Vegetative apparatus, growth and morphogenesis. Senescence; XILEMA; Xylem; XYLEME; Plant tissue; Growth; Pseudotsuga menziesii; Mechanical factor; Phloem; Growth stress; Branch; Indoleacetic acid; Gymnospermae; Xylene; Reaction wood; Plant growth substance; Coniferales; Spermatophyta; Cambium

Five-year-old segments of intact 7-year-old branches of Douglas-fir (Pseudotsuga meziesii [Mirb.] Franco) were reoriented to determine the relations between indole-3-acetic acid (IAA) and the formation of compression wood. Eight branches per treatment were either left at their original angle (mean o...