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Tropical Pinus spp
from PNGAF MAGAZINE ISSUE # 9D4B1 of 31 May 2022. Why Certain Planation Species in PNG?
by rbmccarthy
Tropical Pinus spp. can thrive where available nitrogen is scarce if mycorrhiza is present and they are resistant to grass fires, but the wood they produce is used for utility purposes and must be produced at low cost to compete as pulp and building timber with imports from natural coniferous forests in temperate and subtropical regions. more cheaply than any hardwood if soil nutrients are deficient. Source FAO.
Pinus plantation Bulolo.
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Photo credit Dick McCarthy 2004.
Part of Pinus merkusii hybrid seed production area Bulolo.
Photo credit Neville Howcroft.
P. merkusii var at.jeh Age 9 years. Source DOF Notes on Wau Bulolo Activities. Bulletin # 3 of 1971.
15Silviculture of Pinus in PNG Bulletin # 5 by John Smith 1970 describes silvicultural techniques to grow Pinus species in PNG.
15 Smith JEN 1970 Silviculture of Pinus in PNG Silviculture Bulletin No 5.
Eastern Highlands plantations extension between Lapegu Goroka plantations and Lufa Henganofi towards Kainantu. Species include P. patula and some P. strobus var chaiapensis. Photo credit Neville Howcroft.
Species trial. Portion of a block Lapegu Goroka.
Photo credit Neville Howcroft.
Species trial. P. caribaea var hondurensis Rd 35 Bulolo. Photo credit Neville Howcroft.
Pinus caribaea clonal orchard Bulolo Clones Australian and some local clones as well National Seed production area. Photo credit Neville Howcroft.
Progeny & provenance pilot plantings Pinus merkusii and Pinus latterii Rd35 research plantation Bulolo. Photo credit Neville Howcroft.
Pinus merkusii from Queensland in clonal seed orchard Heads Hump Bulolo. Good form and vigour. Photo credit Neville Howcroft.
Philippines Pinus merkusii centre of photo and on right F1 hybrid Pinus merkusii x latterii.
Photo credit Neville Howcroft.
Pinus merkusii hybrids Rd 31. Bulolo.
Photo credit N Howcroft.
Display BFC /FORCOL
tree breeding research Pinus hybrid work, grafting, seed product. The display illustrates tree breeding stem form improvement with Pinus merkusii hybridizing.
