Computer-Assisted Image Analysis of Tissues of Ethrel-Treated Pinus taeda Seedlings | Zendy

Frank W. Telewski | Zendy; Andrew H. Wakefield | Zendy; Mordecai J. Jaffe | Zendy

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Computer-Assisted Image Analysis of Tissues of Ethrel-Treated Pinus taeda Seedlings

Author(s) -

Frank W. Telewski,

Andrew H. Wakefield,

Mordecai J. Jaffe

Publication year - 1983

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.72.1.177

Subject(s) - tracheid , pinus <genus> , loblolly pine , xylem , bark (sound) , shoot , elongation , horticulture , botany , pinus pinaster , biology , chemistry , materials science , composite material , ecology , ultimate tensile strength

A microcomputer based video image analyzer is described and demonstrated in the analysis and comparison of tissue types of 6-month-old Ethrel-treated and control seedlings of loblolly pine (Pinus taeda L.). Two different programs were employed. ;Topographer I' sought, identified, and measured cell or resin canal lumen areas, and ;Area' measured tracheid length and silhouette areas. Ethrel treatment induced an increase in radial growth and a decrease in shoot elongation and needle growth. Bark production was stimulated by the same treatment. The tracheid lumens of Ethrel-treated plants were shorter and had a smaller cross-sectional area, whereas the tracheid cell walls increased in thickness. The treatment also increased resin canal formation in the xylem.

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