نتایج جستجو برای: pinus

تعداد نتایج: 13226  

2017
Irina Kovda Eric C. Brevik Thomas E. Fenton Maria Gerasimova MARIA GERASIMOVA

2013
Eun-Hwa Lee Ahn-Heum Eom

This study aimed to investigate differences in ectomycorrhizal (ECM) fungal communities between disturbed sites and undisturbed old forest sites. ECM root tips of Pinus densiflora were collected from 4 sites disturbed by human activities and 3 undisturbed old forest sites adjacent to the disturbed sites. Results in this study showed that the number of ECM root tips, species diversity, and numbe...

2009
J. A. Lutz J. W. van Wagtendonk

Studies of forest change in western North America often focus on increased densities of small-diameter trees rather than on changes in the large tree component. Large trees generally have lower rates of mortality than small trees and are more resilient to climate change, but these assumptions have rarely been examined in long-term studies. We combined data from 655 historical (1932–1936) and 21...

Journal: :نامه انجمن حشره شناسی ایران 0
مینو حیدری لتیباری گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه فردوسی مشهد. غلامحسین مروج گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه فردوسی مشهد. حسین صادقی نامقی گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه فردوسی مشهد.

during a survey in 2015, three dark-winged fungus gnat species, bradysia odoriphaga yang & zhang, 1985, bradysia trivittata staeger, 1840and scatopsciara atomariazetterstedt, 1851 were identified and recorded here from iran for the first time. the genus scatopsciara edwards, 1927 is newly recorded from iran as well. the identification of specimens were confirmed by dr kai heller (germany). the ...

2009
K. Schubert A. Greslebin J.Z. Groenewald P.W. Crous

Two new species of Cladosporium found on necrotic needles of Pinus ponderosa trees in Patagonia, Argentina, are described as C. chubutense and C. pini-ponderosae. An additional isolate from dead leaves of Cortaderia collected in Colombia, which is a sister taxon to the species occurring on Pinus, is described as Cladosporium colombiae. These species are phylogenetically closely related, but dif...

2010
İbrahim Tümen Markku Reunanen

Oleoresin samples collected from Pinus sylvestris L. trees from Acıpayam, Çal and Çamlıbel, three different locations in Denizli-Turkey. The constituents of the turpentine oil, obtained by hydrodistillation of oleoresin of Pinus sylvestris L., were identified by GC-MS. Fifty four constituents were detected from the turpentine oil, which constituted about between 96.2% and 98.2% of the total amo...

2011
Jian Xin Deng Narayan Chandra Paul Mei Jia Li Eun Young Seo Gi Ho Sung Seung Hun Yu

Species of Phoma and its allies were isolated during a survey on the diversity of endophytic fungi associated with pine trees in Korea. Based on the phylogenetic analyses of internal transcribed spacer and β-tubulin gene sequences, two Phoma-like species from the needles of Pinus koraiensis were identified as Peyronellaea calorpreferens and P. glomerata. They were also morphologically identifie...

2007
J. A. N. VAN AARDT

Three southern USA forestry species, loblolly pine (Pinus taeda), Virginia pine (Pinus virginiana), and shortleaf pine (Pinus echinata), were previously shown to be spectrally separable (83% accuracy) using data from a full-range spectroradiometer (400–2500 nm) acquired above tree canopies. This study focused on whether these same species are also separable using hyperspectral data acquired usi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید