Báo cáo lâm nghiệp: "Online control of wood peeling process: Acoustical and vibratory measurements of lathe checks frequency" ppt

... that the fine root ratio is stable at least in the first growing period of new plantation and the best growing plants have about the same fine root ratio as the poorly growing ones. Even the regression ... explaining 92% of the relationship. An adequate proportion of fine roots (thinner than 2 mm) in the root system is another important parameter of p...

Ngày tải lên: 07/08/2014, 03:22

... distribution of the Japanese pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in China Rui-Yan M a, b , Shu-Guang H a ,Wei-NaK b , Jiang-Hua S a ,LeK a * a State Key Laboratory of Integrated ... saltuarirs in northeastern China, M. galloprovinialis in the whole of Europe except for Scandinavia and Siberia, and M. scutellatus...

Ngày tải lên: 07/08/2014, 16:20

... 801 c  INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2006063 Original article Fungi associated with Tomicus piniperda in Poland and assessment of their virulence using Scots pine seedlings Robert ... col- onizer of pine tree stems. Tomicus piniperda, together with its cogener T. minor (Hrtg.), ranks among the main insect pests of Scots pine in P...

Ngày tải lên: 07/08/2014, 16:20

... for increased stiffness of juvenile wood or an early transition age from juvenile to mature wood. The objective of this study was to investigate the age of transition from juvenile to mature wood and ... ascertain the genetic control in time of transition from juvenile to mature wood in radiata pine, there may be an opportunity...

Ngày tải lên: 07/08/2014, 16:20

... TSR in the oak, mixed and beech stands. The annual heterotrophic respiration of the forest floor ac- counted respectively for 68, 74 and 51% of the annual FFR in the oak, mixed and beech stands ... 10.1051/forest:2006098 Original article Soil carbon dioxide efflux in pure and mixed stands of oak and beech Mathieu J * , Frộdộric A , Franỗois J,Nicol...

Ngày tải lên: 07/08/2014, 16:20

... Martino Negri and Dr. Sandak Jakub for the development of the device used during this mission. Online control of wood peeling process: Acoustical and vibratory measurements of lathe checks frequency ... www.afs-journal.org DOI: 10.1051/forest:2007034 Original article Online control of wood peeling process: Acoustical and vibratory measurements o...

Ngày tải lên: 07/08/2014, 16:21

... 10.1051/forest:2007071 Original article Nursery fertilisation affects the frost-tolerance and plant quality of Eucalyptus globulus Labill. cuttings Manuel Fern ´ andez a * , Celia M arcos a ,RaúlTapias a , ... how nursery fertilisation affects the field performance of plants. This led us to study the effect of three mineral nutrients (N, P and K) on both plant...

Ngày tải lên: 07/08/2014, 16:21

... (2005) 403412 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005036 Original article Genetic control of adventitious rooting on stem cuttings in two Pinus elliottii ì P. caribaea hybrid families Mervyn ... shown to be effective in maintaining juvenile rooting responses in operational hedges of P. elliottii ì P. caribaea hybrids till at least age 3...

Ngày tải lên: 08/08/2014, 00:22

... separating peripheral wood (PW), red heartwood (RH) and non red heartwood (NRH) points (mean for 342 boards). Colour variations of European beech wood 631 Figure 6 illustrates these variations of colour for L* only ... 10.1051/forest:2005063 Original article Studies on European beech (Fagus sylvatica L.). Part 1: Variations of wood colour paramet...

Ngày tải lên: 08/08/2014, 00:22

... article Fertilization at planting impairs root system development and drought avoidance of Douglas-fir (Pseudotsuga menziesii) seedlings Douglass F. JACOBS a,b *, Robin ROSE a , Diane L. HAASE a , Patricio ... the poor root development of seedlings fer- tilized at a relatively high rate in this study. We expected increased root proliferation at or above...

Ngày tải lên: 08/08/2014, 01:22

... efficiency and CO 2 compensation point associated with midday stomatal closure and mid- day depression of net CO 2 exchange of leaves of Quercus suber. Planta 1 62, 193 -20 3 Tenhunen ... patterns in forest stands of lobolly pine (Pinus taeda L). In: Abstract collection of the international workshop on Ecophysiology and Genetics of...

Ngày tải lên: 08/08/2014, 18:21

... respond to a treatment promoting flowering. These observations suggest that the control of flowering is at least partially located within the bud. This control could be related ... Vegetative vigor control over location and fate of flower buds in fruit trees. Acta Hortic. 149, 55-63 Jackson D.J. & Sweet G.B. (1972) Flower initia- tion i...

Ngày tải lên: 09/08/2014, 04:20

... Correlative control of early stages of flower bud initiation in ’bourse’ shoots of apple (Malus x domestica Borkh. cv. Golden Delicious) J. Escobedo J. ... experimenting on apple ’bourse’ shoots. The bourse is the swollen basal part of an inflorescence axis at the onset of fruit development; it bears leaves whose axillary...

Ngày tải lên: 09/08/2014, 04:20

... C. (1987) Molecular and cellular events of self-incompatibility. Int. Rev. Cytol. 107,333-366 Hawkes R. (1982) Identification of concanavalin A-binding proteins after sodium dodecyl ... presence of P nigra and P alba pol- len tubes inside stigmatic tissues. How- ever, increasing protein bands were detectable, 0-20 h after pollination, only in c...

Ngày tải lên: 09/08/2014, 04:20

... & Cowan I.R., eds.), Stanford University Press, Stanford, pp. 323 -351 Environmental control of CO 2 assimilation rate and leaf conductance in two species of the tropical rain ... of the tropical rain forest of French Guiana (Jacaranda copaia D. Don and Eperua falcata Aubl.) R. Huc 1 J.M. Guehl 2 1 Station de...

Ngày tải lên: 09/08/2014, 04:20