Results 181 to 190 of about 1,179,846 (229)

Tolerance of Poplar (Populus sp.) to Environmental Stresses II. Photosynthetic Characteristics of Poplar Clones Grown at Low and High Light Intensities [PDF]

Journal of Plant Physiology, 1988
Summary Four poplar clones ( Populus sp., Beaupre, Raspalje, Fritzi Pauley and Robusta) were grown at low and high photon flux densities (PFD) and the photosynthetic characteristics of the leaves were examined and compared using photoacoustic and fluorometric techniques. The growth of all the clones (shoot length and leaf area) was markedly reduced
Havaux, Michel C., Ernez, Mohamed, Lannoye, Robert   +2 more
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Molecular and Genetic Approaches to Rust Resistance (Melampsora sp.) in Poplar (Populus sp.)

1996
Various Melampsora rust races are causing defoliations on susceptible cultivars in commercial poplar plantations. Genetic and molecular analyses of parents and families of a factorial mating design have been investigated to determine components of resistance to rust. One genomic area was revealed which was involved in qualitative resistance.
Goué-Mourier, M.C., Faivre-Rampant, Patricia, Le Guerroué, Bénédicte, Lefèvre, Francois, Villar, Marc   +4 more
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Wood anatomy and cytokinin-related responses in poplar (Populus sp.) under environmental stress

2022
Die Holzgewächse, wie die Pappel, sind als Energiepflanzen zweiter Generation von großer Bedeutung. Die Holzbildung ist jedoch dynamisch und durch exogene Faktoren wie Trockenheit und Saisonalität stark beeinträchtigt als auch von endogenen Faktoren.
Paul, Shanty, Polle, Andrea, Georg-August-Universität Göttingen, Feußner, Ivo, Gatz, Christiane, Teichmann, Thomas Pd, Ammer, Christian, Krutovsky, Konstantin   +7 more
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A Model of Poplar (Populus sp.) Physiology and Morphology Based on Relational Growth Grammars

2007
Functional-structural plant models (FSPMs), combining the physiological function of a plant with its architecture, require precise and transparent specifications. This can be seen as a new challenge to the design of programming languages. Here we introduce, exemplarily for a model of young poplar trees, our new formalism of relational growth grammars ...
Buck-Sorlin, G.H., Kniemeyer, O., Kurth, W.   +2 more
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Effects of Pretreatment Conditions on Downstream Bioconversion of Poplar Wood (Populus sp.) into Biofuels

2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010, 2010
One of the biggest challenges for using lignocellulosic biomass to generate biofuels is the pretreatment process, which involves the breakdown of the plant cell wall structure to release cellulose and hemicellulose from lignin. The structural mechanisms of lignocellulose breakdown during pretreatment are not yet understood.
null Jyotsna L Pandey, null Megan N Marshall, null Tom L Richard   +2 more
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Identification of Genetic Polymorphism of Poplar (Populus sp.) by Dna Marker Technology

1998
In order to identify new Populus lines, STS (Sequence Tagged Site) and RAPD (Random Amplified Polymorphic DNA) marker analysis were performed on eight Populus deltoides x Populus deltoides hybrids and Populus deltoiudes (77/51) which was used as control. For RAPD analysis STS primers were used in single forms.
N. KÖrÜkmez, A. Zehİr, N. GÖZÜkirmizi   +2 more
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Identification of differentially expressed proteins in poplar leaves induced by Marssonina brunnea f. sp. Multigermtubi

Journal of Genetics and Genomics, 2008
Black spot disease in poplar is a disease of the leaf caused by fungus. The major pathogen is Marssonina brunnea f. sp. multigermtubi. To date, little is known about the molecular mechanism of poplar (M. brunnea) interaction. In order to identify the proteins related to disease resistance and understand its molecular basis, the clone "NL895" (P ...
Kun, Yuan, Bo, Zhang, Yanmei, Zhang, Qiang, Cheng, Mingxiu, Wang, Minren, Huang   +5 more
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Ozone-induced necrosis and increased peroxidase activity in hybrid poplar (Populus sp.) leaves

Environmental and Experimental Botany, 1986
Abstract Peroxidase activity was assayed in leaves from two positions (nodes 5 and 15) along the stems of four clones of hybrid poplar ( Populus sp.) that had been fumigated with ozone at 0.15 μl/l for up to 6 weeks. Two clones were designated ozone-sensitive, and two were designated ozone-resistant according to the amount of ozone-induced injury ...
Roy L. Patton, Michael O. Garraway
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Biomass production of hybrid poplar (Populus sp.) grown on deep-trenched municipal biosolids

Ecological Engineering, 2008
Abstract Environmentally sustainable options for recycling municipal biosolids generated from wastewater treatment plants are needed. We measured the wood biomass production of a 50 ha hybrid poplar ( Populus spp.) tree farm where biosolids were applied at a rate of 380 metric tonnes per hectare in deep trench rows (46 cm deep, 107 cm wide, and 20 ...
Erika Felix, David R. Tilley, Gary Felton, Eric Flamino   +3 more
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Diplodia populicola sp. nov. causing branch canker of poplar in Beijing, China

Phytotaxa
Poplar is a vital timber species, but branch canker caused by Botryosphaeriaceae species are widespread and severe in China, leading to substantial economic losses. In this study, two fungal isolates morphologically classified under Botryosphaeriaceae were obtained from cankered poplar branches collected in the Wenyu River region of Beijing ...
Zhang, Zhe, Jiao, Ning, Guo, Lin-Na, Wang, Jia-Wen, Zhang, Ying   +4 more
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