Trials and growth of Pinus caribaea in Northern Nigeria
Trials and growth of Pinus caribaea in Northern Nigeria
J.O. Adegbehin, S. Nokoe, J. A. Okojie and G. O. Otegbeye
ABSTRACT
From the trial plantings of exotic tree species which
commenced in the Northern areas of Nigeria over 20 years
ago, apart from some species of eucalypts which have
been earmarked as promising and mow feature prominently
in afforestation programmes in these areas, Pinus
caribaea variety hondurensis (out of all the varieties
of the species tried) has been identified as the next
most promising and widely planted species within the low
and medium altitude areas (600 - 1200m) of that part of
the country. Growth data from permanent sample plots
from the Northern parts of the country showed that, on
average site, P. caribaea var. hondurensis attained a
top height of 23.4m at a reference age of 20 year and
that a maximum mean annual increment (M. A. I) of
24.2m3/ha/yr could be obtained at age 30 with an
overbark total volume production of about 726m3/ha.
Among the other things discussed are the factors
influencing the growth rate of the species and the
application of the resulting growth figures to its
management.
To share on other social networks, click on any share button. What are these?
March 1988
Vol. 38, Iss. 1
