Silvae Genetica Journal Impact Factor & Information

Publisher: Bundesforschungsanstalt für Forst- und Holzwirtschaft (Germany), JD Sauerlaender's Verlag

Journal description

Current impact factor: 0.24

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 0.24
2012 Impact Factor 0.44
2011 Impact Factor 0.778
2010 Impact Factor 0.689
2009 Impact Factor 0.543
2008 Impact Factor 0.667
2007 Impact Factor 0.545
2006 Impact Factor 0.311
2005 Impact Factor 0.34
2004 Impact Factor 0.356
2003 Impact Factor 0.261
2002 Impact Factor 0.244
2001 Impact Factor 0.354
2000 Impact Factor 0.312
1999 Impact Factor 0.513
1998 Impact Factor 0.483
1997 Impact Factor 0.463
1996 Impact Factor 0.491
1995 Impact Factor 0.372
1994 Impact Factor 0.473
1993 Impact Factor 0.275
1992 Impact Factor 0.46

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.66
Cited half-life 0.00
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.18
Website Silvae Genetica website
Other titles Silvae genetica
ISSN 0037-5349
OCLC 11054817
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

JD Sauerlaender's Verlag

  • Pre-print
    • Author cannot archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Conditions
    • Publisher's version/PDF must be used
    • Upon publication in publisher archive
  • Classification
    ​ blue

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: This study was performed to estimate the abilities of eucalyptus clones to exercise as well as to tolerate competition and to compare their behaviors under auto- or allocompetition. Six commercial clones, belonging to PLANTAR S/A enterprise were evaluated for breast height circumference (BHC), total height (TH) and volume (VOL). At three locations of Minas Gerais, Brazil (two in Curvelo and one in Felixlândia) the clones were planted in two spaces. At 36 months of age each clone was evaluated for exercising and toleration competition amongst each other. The design for each experiment was similar to that of the nine-hole system; the center clone being under competition and the eight surrounding the center clone exercising competition. Each clone under competition was repeated eight times; therefore, for each spacing and location, six contiguous experiments were conducted. From the mean values; the parameters of ability to exercise competition (ci), ability to tolerate competition (tj), the specific competitive ability (sij) and the performance per se of the clones (aj) were estimated using a model similar to that of diallel crosses. The clones differed as to their ci, tj and aj. No one clone exhibited high and positive ci and tj. Regardless of location, spacing, or clone, the performance of autocompetition is similar to that of allocompetition. This indicates that a mixture of clones, if advantageous from the management or industrial point of view, may be performed without harm to the volume of wood produced.
    Silvae Genetica 01/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: This paper describes a method to obtain haploid and doubled-haploid (DH) embryos using anther cultures of holm oak (Quercus ilex L.). The production of haploids and DH through gametic embryogenesis provides an attractive biotechnological tool for developing homozygous lines from heterozygous parents, which is important in breeding programs, as well as in genetic studies. As a consequence, protocols to produce homozygous plants have a significant impact on forest tree improvement. Anthers were subjected to different temperature treatments for embryo induction: a cold pre-treatment (4°C) from 3 to 7 days was carried out at the beginning, followed by a heat shock (33°C) from 2 to 5 days. Most anthers responding to these stress treatments contained vacuolated microspores, indicating that this developmental stage is responsive to embryogenesis induction in holm-oak microspores. In all cases, embryos grew from the interior of the anthers, breaking through the degenerating anther walls. Under these conditions, embryo formation occurred in 31 anthers between 46 and 95 days after culture initiation. Embryo analysis performed with flow-cytometry and DNA-microsatellite markers showed haploid profiles and/or spontaneous doubling of the chromosomes during early regeneration stages. This is, to our knowledge, the first published report on gametic embryogenesis in holm oak.
    Silvae Genetica 11/2013; 62(4-5):210-217.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Individuals of the genus Populus are mostly dioecious, although deviations from strict dioecism occasionally occur. The aim of this study was to determine whether six, rare monoecious Populus nigra var. nigra trees, identified in trial plots, were fertile and capable of sexually reproducing. Controlled pollinations were carried out and compared with the results of open pollination. Viable seeds were obtained from all combinations of pollination possibilities, suggesting these monoecious trees could be used as either male or female parent and were self-fertile. However, no individuals produced by selfpollination were found among the offspring from openpollinated, monoecious trees. The parentage of some of the crosses was verified using microsatellite markers. The germination energ'y (GE) and germination capacity (GC) were in most cases higher for seeds produced from controlled pollinations than from open pollination. Furthermore, GE and GC were both higher when pollen from the monoecious trees was used. An association between GE and GC rates on the one hand, and the pollination method and year it took place on the other, was found in most crosses made. This study extends knowledge of the reproductive biology of P. nigra that could be utilized in conservation genetic of this endangered allogamous species.
    Silvae Genetica 01/2013; 62(3):117-124.
  • Silvae Genetica 01/2013; 62:18-26.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Dipterocarp trees are ecologically and commercially important in Southeast Asian tropical rainforests. For sustainable management of forest ecosystems and conservation of biodiversity, it is essential to establish plantation methods ensuring that genetic variation of the planted trees is equivalent to that in natural forests. The genetic diversity and differentiation of Shorea leprosula and Shorea parvifolia on plantations managed by a private-sector forestry company in Indonesia and those in natural populations were compared using microsatellite markers. Genetic diversity in the planted populations was as high as that in the natural populations. No clear genetic differences between each planted population and the natural forest populations were found. The genetic variation present in planted S. leprosula and S. parvifolia populations did not appear to deteriorate in the planting system implemented in Indonesia, known as Tebang Pilih Tanam Jalur (TPTJ). These results indicate that the current plantation method practiced in the region is suitable for maintaining the original genetic composition and achieving sustainable use of tropical rainforests.
    Silvae Genetica 01/2013; 62(6):292-299.
  • Silvae Genetica 06/2012; 61(6):287-291.