DEVELOPING AND USING SUPERIOR SHADE TREES

SHADE-TREE IMPROVEMENT RESEARCH IS CONCERNED WITH THE DEVELOPMENT OF SUPERIOR INDIVIDUALS. MAXIMUM BENEFITS ARE DERIVED FROM USING THE BEST TREE AVAILABLE. THE DEGREE OF UNIFORMITY ACHIEVED BY THE SEEDLING SELECTION PROCESS IS NOT GREAT. THE TYPE OF UNIFORMITY NEEDED IN THE TREES IS IN RESISTANCE TO MAJOR INSECT AND DISEASE PESTS AND TOLERANCE OF ENVIRONMENTAL STRESS FACTORS. VEGETATIVE PROPAGATION OF SELECTED CULTIVARS BY GRAFTING, BUDDING, OR ROOTING RESULTS IN A POPULATION WITH A HIGH DEGREE OF UNIFORMITY, EVEN THOUGH VARIABLE SEEDLING MATERIAL IS FREQUENTLY USED AS UNDERSTOCK. EVEN THOUGH MOST OF THE NEW TREE CULTIVARS DO NOT REPRESENT ANY REAL IMPROVEMENT IN PEST RESISTANCE AND ENVIRONMENTAL TOLERANCE, THEY HAVE BEEN RECEIVED ENTHUSIASTICALLY BY TREE PLANTING AGENCIES, BECAUSE OF GENETIC, ESTHETIC AND ECONOMIC REASONS FOR UNIFORMITY. /AUTHOR/

• Corporate Authors:

  Arborists News

  ,    
• Authors:
  • Santamour, F S
• Publication Date: 1972-4

Media Info

• Pagination: p. 93a-6a
• Serial:
  • Publication of: Arborist's News
  • Volume: 37
  • Issue Number: 4
  • Publisher: Arborists News

Subject/Index Terms

• TRT Terms: Insects; Standardization; Trees
• Old TRIS Terms: Propagation
• Subject Areas: Design; Environment; Highways;

Filing Info

• Accession Number: 00205190
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 18 1972 12:00AM