scholarly journals Alternative tree species on farms

2003 ◽  
Vol 10 ◽  
pp. 91-101
Author(s):  
J.D. Hocking
Keyword(s):  
New Zealand ◽  
Tree Species ◽  
Radiata Pine ◽  
Douglas Fir ◽  
Sequoia Sempervirens ◽  
Acacia Melanoxylon ◽  
Sequoiadendron Giganteum ◽  
Populus Spp ◽  
End Uses

The more commonly and successfully grown species of timber trees, grown in New Zealand as alternatives to radiata pine, are briefly reviewed, with emphasis on site requirements and timber end uses. Their silviculture and marketing is considered. The groups covered are Douglas Fir (Pseudotsuga menzesii), the cypresses (Cupressus species and hybrids), eucalypts (Eucalyptus spp.), acacias (Acacia melanoxylon and some others) and more briefly redwood (Sequoia sempervirens and Sequoiadendron giganteum) and poplars (Populus spp.).

scholarly journals Phytophthora pluvialis Studies on Douglas-fir Require Swiss Needle Cast Suppression

Plant Disease ◽  
2017 ◽  
Vol 101 (7) ◽  
pp. 1259-1262 ◽  
Author(s):  
Mireia Gómez-Gallego ◽  
Martin Karl-Friedrich Bader ◽  
Peter Matthew Scott ◽  
Sebastian Leuzinger ◽  
Nari Michelle Williams
Keyword(s):  
New Zealand ◽  
Pacific Northwest ◽  
Radiata Pine ◽  
Douglas Fir ◽  
Needle Cast ◽  
The Pacific ◽  
Swiss Needle Cast ◽  
Phytophthora Pluvialis ◽  
Red Needle Cast ◽  
Ubiquitous Presence

Phytophthora pluvialis is associated with early defoliation and shoot dieback in Douglas-fir in Oregon and New Zealand. In 2013, P. pluvialis was described from mixed tanoak-Douglas-fir forests in the Pacific Northwest and concurrently recognized as the main causal agent of red needle cast (RNC) in New Zealand radiata pine plantations. Little is known about its infection cycle and impact on host physiology. P. pluvialis studies in Douglas-fir are challenging due to the ubiquitous presence of the endophyte Phaeocryptopus gaeumannii, which produces similar symptoms and premature defoliation with persistent needle wetness, known as Swiss needle cast (SNC). Nonetheless, our study showed P. pluvialis infection in the presence of SNC. Exclusive expression of P. pluvialis is difficult to achieve as both diseases are promoted by high humidity. Here we established a ‘dry leaf’ strategy to suppress SNC when inoculating Douglas-fir needles for RNC studies. Sheltering plants along with drip irrigation to avoid needle wetness during the P. gaeumannii sporulation period suppressed its development in the new season flush. The diminished endophyte inoculum enabled bias-reduced studies of P. pluvialis impacts on Douglas-fir without the confounding effects of stomatal blockage and premature defoliation caused by P. gaeumannii.

scholarly journals Modelling variation in wood density within and among trees in stands of New Zealand-grown radiata pine

2015 ◽  
Vol 45 (1) ◽  
Author(s):  
Mark O. Kimberley ◽  
Dave J. Cown ◽  
Russell B. McKinley ◽  
John R. Moore ◽  
Leslie J. Dowling
Keyword(s):  
New Zealand ◽  
Wood Density ◽  
Radiata Pine

Tree Species for Recovering Nitrogen from Dairy-Farm Effluent in New Zealand

2001 ◽  
Vol 30 (3) ◽  
pp. 1064-1070 ◽  
Author(s):  
Jon K.F. Roygard ◽  
Brent E. Clothier ◽  
Steve R. Green ◽  
Nanthi S. Bolan
Keyword(s):  
New Zealand ◽  
Tree Species ◽  
Dairy Farm

Melampsora medusae. [Distribution map].

1982 ◽  
Author(s):  
Keyword(s):  
British Columbia ◽  
New Zealand ◽  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Distribution Map ◽  
Melampsora Medusae ◽  
New Distribution ◽  
Populus Spp

Abstract A new distribution map is provided for Melampsora medusae Thum. Hosts: Populus spp. and conifers. Information is given on the geographical distribution in ASIA, Japan, AUSTRALASIA & OCEANIA, Australia, New Zealand (N. Island), EUROPE, France (S.), Spain, NORTH AMERICA, Canada (British Columbia), USA (widespread in N.E.), SOUTH AMERICA, Chile.

scholarly journals Economic Impact of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) production in the Czech Republic

2014 ◽  
Vol 60 (No. 7) ◽  
pp. 297-306 ◽  
Author(s):  
K. Pulkrab ◽  
M. Sloup ◽  
M. Zeman
Keyword(s):  
Czech Republic ◽  
Economic Impact ◽  
Pseudotsuga Menziesii ◽  
Tree Species ◽  
Economic Effect ◽  
Douglas Fir ◽  
European Countries ◽  
Natural Conditions ◽  
The Czech Republic ◽  
Forest Production

The article addresses the issues of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) production in the Czech Republic (CR). Our analysis shows that the tree species can occupy 149,616&ndash;163,713 ha in the CR (with respect to ecological limits set by the Czech legislation). The potential economic effect expressed by the gross yield of forest production might be higher by 27&ndash;30 million EUR&middot;yr<sup>&ndash;1</sup>.&nbsp; The results of the analysis support the forest owners&rsquo; interest to extend Douglas-fir production in the CR, similarly like it has been extended systematically in all European countries where natural conditions allow. &nbsp;

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