TREES FOR CITY PLANTING; YESTERDAY, TODAY, AND TOMORROW

IN ORDER FOR THEM TO PLAY AN IMPORTANT ROLE IN HUMANIZING DETERIORATING URBAN ENVIRONMENTS, TOMORROW'S TREES MUST BE GENETICALLY IMPROVED SO THEY CAN TOLERATE OR RESIST THE ENVIRONMENTAL STRESS FACTORS THAT CAUSE INJURY TO TREES IN THE CITY, IMPAIR THEIR GROWTH, AND MAKE THEM MORE LIKELY HOSTS FOR DAMAGING INSECT AND DISEASE PESTS. THE DEVELOPMENT OF IMPROVED SHADE TREES REQUIRES FEDERAL, STATE, OR UNIVERSITY PROGRAMS WHICH, IDEALLY, WILL BE SUPPORTED ON A CONTINUOUS BASIS FOR AT LEAST 30 YEARS. IMPORTANT BREEDING PROGRESS HAS BEEN MADE IN ULMUS, PLATANUS, MAGNOLIA, AND LIQUIDAMBAR, AND PRELIMINARY WORK ON TILIA, ROBINIA, LIRIODENDRON AND ACER SHOWS CONSIDERABLE POTENTIAL. STUDIES ON AIR POLLUTION TOLERANCE WILL BE INTENSIFIED AND SALT TOLERANCE STUDIES ARE UNDERWAY. IN THE NEXT FEW YEARS, SOME DISEASE-RESISTANT AMERICAN ELMS WILL PROBABLY BE RELEASED THROUGH SOME OF THE OLDER PROJECTS. IT WILL BE 20 YEARS BEFORE THERE IS A SIGNIFICANT NUMBER OF NEW AND IMPROVED TREES ON CITY STREETS. /AUTHOR/

  • Supplemental Notes:
    • Vol 36, No 3, PP 25, 27-28
  • Corporate Authors:

    Arborists News

    ,    
  • Authors:
    • Santamour, F S
  • Publication Date: 1971-3

Subject/Index Terms

Filing Info

  • Accession Number: 00204825
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 16 1971 12:00AM