Báo cáo lâm nghiệp: "Genetic inventory of European oak populations: consequences for breeding and gene conservation" pps

... 173-185 Original article Genetic inventory of European oak populations: consequences for breeding and gene conservation S Herzog Abteilung für Forstgenetik und Forstpflanzenzüchtung, ... differentiation measures. Consequences for forest tree breeding and conservation of genetic resources Genetic variation is an important prerequisite for the...

Ngày tải lên: 08/08/2014, 18:21

... vector of individual tree observations; b is the vector of block fixed effects; a is the vector of random general combining ability (GCA) effects of individual trees; s is the vector of random specific ... due to specific combinations of males and females; m is the vector of random plot effects; e is the vector of random residual deviations of individual trees; X, Z 1 , Z 2 and...

Ngày tải lên: 07/08/2014, 16:20

... the summer and fall due to the rapid increase and spread of the fungus during wet periods by means of repeated generations of conidia. Wild cherry is one of the most valued European forest tree ... mm at Areas and 14.6 ◦ C and 158 mm at Sergude, respectively. One hundred and fifty-five plus trees, selected for growth and form within natural stands from North Spain, were...

Ngày tải lên: 07/08/2014, 16:20

... the Nei and Li’s similarity coefficient [38]: S xy = 2m xy /(m x + m y ), where m xy is the number of bands shared by samples x and y,andm x and m y are the number of bands in samples x and y, respectively. ... of polymorphic bands P r %[P r % = (polymorphic bands/total bands) × 100)] and Shannon’s H  index [H  = (−Σπ i log 2 π i )/L, π i is the frequency of the i th RAPD ba...

Ngày tải lên: 07/08/2014, 16:21

... final 1. INTRODUCTION Genetic improvement of radiata pine has been conducted in Chile since the late 70’s, mainly by breeding of parents selected for their outstanding growth rate and form, although ... [42]. Wood heterogeneity is described as an important defect and uniformity of juvenile wood is usually lower than that of mature wood [40, 41]. Therefore, possible consequen...

Ngày tải lên: 08/08/2014, 00:21

... rationale, Proc. of the Queensland Forest Service Clonal Forestry Workshop, Gym- pie, Queensland, 1993, pp. 2.1–2.9. [19] Haines R.J., Clonal forestry in Queensland and implications for hybrid breeding ... Forestry report of research activities, Division of Technical Services, Queensland Department of Forestry, (1977) 52. [3] Bradshaw H.D.J., Stettler R.F., Molecular genetics o...

Ngày tải lên: 08/08/2014, 00:22

... context of the reduction of pesticide use in European forests, the possibility of breeding for genetic resistance appears as a promising tool for weevil management [2]. Besides, an integrative breeding ... variance of the sum trait x + y. Data were standardized (mean = 0, standard deviation = 1) for each trait to remove scale effects prior to calculating genetic cor- relat...

Ngày tải lên: 08/08/2014, 00:22

... beginning of May and ended in mid-June with the peak at the end of May and beginning of June in 2005 (Fig. 2). In 2006, the flight activity started later in mid of May and lasted to the beginning of ... well as in mixed forests, in lowland forests and even on forest-steppe habitats. Larvae occur mainly on Picea sp., Pinus sp. and Abies sp.; adults occur on the same tr...

Ngày tải lên: 07/08/2014, 03:22

... management. It is interest- ing for forest practice if and under what conditions it is possible to take into account natural regenera- tion of oak. Natural regeneration of oak is of considerable importance. ... stabil- ity and quality of a subsequent stand. CONCLUSIONS AND RECOMMENDATIONS FOR FOREST PRACTICE Research initiated by forest practice of the Křtiny Train...

Ngày tải lên: 07/08/2014, 10:21

... the field should be reconsidered as a technique for the restoration of holm oak forests, forestation of agricultural lands, or the diversification of forest spaces on a large scale at low cost. Acknowledgements: ... field should be reconsidered as a viable technique for restoring holm oak forests, for forestation on agricultural lands, or the diversification of forest species on...

Ngày tải lên: 07/08/2014, 16:20