Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

THE EFFECTS OF DEFOLIATION AND INORGANIC FERTILISERS ON THE GROWTH OF SOME TROPICAL TREE SEEDLINGS

D. A. Agboola and M. Kadiri
Journal of Tropical Forest Science
Vol. 11, No. 4 (October 1999), pp. 672-679
Stable URL: http://www.jstor.org/stable/43582317
Page Count: 8
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
THE EFFECTS OF DEFOLIATION AND INORGANIC FERTILISERS ON THE GROWTH OF SOME TROPICAL TREE SEEDLINGS
Preview not available

Abstract

The effects of defoliation and some inorganic fertilisers on the growth of 3-month-old seedlings of six tropical tree species, i.e. Terminalia ivorensis, Terminalia superba. Ceiba pentandra, Gmelina arborea, Tectona grandis and Leucoma leucocephala, were studied. The removal of two to three leaves significantly decreased root length and dry weights of root and shoot of seedlings of the six species. Seedling height was unaffected by defoliation. Removal of part of a previously intact leaf had no adverse effect on the total growth. There was increase in total leaf area and dry weight of seedlings treated with five inorganic fertilisers, that of Mg(NO₃)₂ being the most effective. Kesan peranggasan dan beberapa baja tak organik terhadap pertumbuhan anak benih berumur 3 bulan bagi enam spesies pokok tropika iaitu Terminalia ivorensis, Terminalia superba, Ceibapentandra, Gmelina arborea, Tectona grandis dan Leucaena leucocephala dikaji. Pembuangan dua hingga tiga daun mengurangkan dengan bererti panjang akar dan berat kering akar serta pucuk anak benih enam spesies tersebut. Ketinggian anak benih tidak dipengaruhi oleh peranggasan. Pembuangan sebahagian daripada daun yang masih berkeadaan baik tidak memberi kesan yang buruk terhadap jumlah pertumbuhan. Terdapat pertambahan dalam jumlah luas daun dan berat kering anak benih yang dirawat dengan lima baja tak organik, dan rawatan Mg(NO₃)₂ didapati paling berkesan.

Page Thumbnails

  • Thumbnail: Page 
672
    672
  • Thumbnail: Page 
673
    673
  • Thumbnail: Page 
674
    674
  • Thumbnail: Page 
675
    675
  • Thumbnail: Page 
676
    676
  • Thumbnail: Page 
677
    677
  • Thumbnail: Page 
678
    678
  • Thumbnail: Page 
679
    679