Wood density and growth ring structure of pinus patula planted in malawi, africa

Hiroki Sakagami, Junji Matsumura, Kazuyuki Oda, Felix Dalitso Kamala

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Growth ring structure and wood density were compared among five families of Pinus patula planted in Malawi, Africa. The vertical and radial variations of wood density and growth characteristics were investigated in stems of 30-year-old Pinus patula planted at a spacing of 2.74 × 2.74 m. The pattern of ring width with cambial aging was broadly similar at all stem heights: wide to the 4th growth ring, decreasing gradually up to the 10 th ring and then very narrow towards the bark. In all the families, the first complete growth ring was the widest, ranging from 20 to 50 mm across the families. This trend was different from other similar studies carried out in Zimbabwe and South Africa where the growth ring width increased from the 1 st to the 3rd ring with the highest ring width of 19 mm. Specific gravity varied with height above the ground for all the trees. The average specific gravity was 0.56. Weak to medium correlations between latewood percentage and specific gravi y were observed. The study shows that selection for density in Pinus patula could be made at least by the age of 10 years.

Original languageEnglish
Pages (from-to)61-70
Number of pages10
JournalIAWA Journal
Volume34
Issue number1
DOIs
Publication statusPublished - Dec 1 2013

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Pinus patula
Malawi
wood density
growth rings
specific gravity
latewood
stems
stem
gravity
Zimbabwe
bark
South Africa
spatial distribution
spacing
Africa
family

All Science Journal Classification (ASJC) codes

  • Forestry
  • Plant Science

Cite this

Wood density and growth ring structure of pinus patula planted in malawi, africa. / Sakagami, Hiroki; Matsumura, Junji; Oda, Kazuyuki; Kamala, Felix Dalitso.

In: IAWA Journal, Vol. 34, No. 1, 01.12.2013, p. 61-70.

Research output: Contribution to journalArticle

Sakagami, Hiroki ; Matsumura, Junji ; Oda, Kazuyuki ; Kamala, Felix Dalitso. / Wood density and growth ring structure of pinus patula planted in malawi, africa. In: IAWA Journal. 2013 ; Vol. 34, No. 1. pp. 61-70.
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