Báo cáo lâm nghiệp:"Genetic correlations between wood density components in Pinus pinaster Ait " pptx
Báo cáo lâm nghiệp:"Genetic correlations between wood density components in Pinus pinaster Ait." pptx
... with Average Ring Density, Minimum Density, Earlywood Density and Latewood Percentage. tree breeding / genetic correlations / wood quality / wood density components / Pinus pinaster Résumé – Corrélations ... the genetic control of the Pinus pinaster wood properties. In a previous work by Louzada and Fonseca [48] about the heritability of wood density components...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Genetic variation of wood density components in a radiata pine progeny test located in the south of Chile" pps
... Traits studied were earlywood (ED) and latewood (LD) density, earlywood (EA) and latewood (LA) area, and latewood proportion (LP). Between rings 2 to 5 (juvenile wood) and 11 to 14 (mature wood) , ... continuous line representing F = 1.56, and P < 0.05. (A) ED and LD; (B) EA, LA and LP. Genetic variation within ring wood density 113 latewood), an increment in LD is related to a...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo khao học: "The heritability of wood density components in Pinus pinaster Ait. and the implications for tree breeding" ppt
... advantage. tree breeding / heritability / wood quality / wood density components / Pinus pinaster Résumé – Héritabilité des composantes de la densité du bois chez Pinus pinaster Ait. et implications ... Earlywood Density (EWD), Latewood Density (LWD), Ring Width (RW) and Latewood Percentage (LWP) were determined, taking the fixed value of 0.550 g cm –3 density as the li...
Ngày tải lên: 08/08/2014, 14:20
Báo cáo lâm nghiệp: "Radial variation of wood density components and ring width in cork oak trees" pptx
... displacement of extractives from heartwood to the outer sapwood, thereby reducing wood density in the innermost rings and increasing it in the outward rings. Until the beginning of cork extraction the accumulation of ... average ring density; MND, minimum density; MXD, maximum density; EWD, earlywood density, LWD, latewood density; RW, ring width; LWP, latewood percentage; HI, he...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Radial-growth and wood anatomical changes in Abies alba infected by Melampsorella caryophyllacearum: a dendroecological assessment of fungal damage" ppt
... 18 75 ± 9 78 ± 8 Figure 2. Intensive sampling scheme showing the location of the nine sample points along the two intersecting transects in a plot. Effects of fungal infection on fir growth 297 than ... occurred in codominant and dominant trees (Tab. IV). No brooms were observed in subdo- minant trees. All brooms in codominant trees were observed on the trunk, and 79% of the brooms i...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp:"Predicting the probability of seed germination in Pinus sylvestris L. and four competitor shrub species after fire" doc
... control situation. Control 50ºC 75ºC 100ºC 125ºC 1 min 5 min 10 min 15 min 1 min 5 min 10 min 15 min 1 min 5 min 10 min 15 min 1 min 5 min 10 min 15 min Halimium alyssoides 4 0 2 1 4 2 6 1 2 4 28 44 ... 2 Control 70 ºC 90 ºC 110 ºC 130 ºC 150 ºC 170 ºC 190 ºC 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min Pinus sylvestris 94 94 95 93 90 92 8 78 0 27 0 0...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: " Genetic control of the time of transition from juvenile to mature wood in Pinus radiata D. Don" pdf
... economically measured. The radial development of wood density components (ring width-RW, ring density- RD, minimum density- MINDEN, maximum density- MAXDEN earlywood density- EWD, and latewood percentage-LWP showed considerable ... data obtained and processed, consist of average values for each growth ring; ring width-RW, ring density- RD, minimum density- MINDEN, maximum density...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Genetic variation and genotype by environment interactions of juvenile wood chemical properties in Pinus taeda " pps
... studied in several juvenile wood traits of 11 year-old loblolly pine trees (Pinus taeda L.). Wafer thin (200 µm) samples from juvenile (ring 3) and transition (ring 8) wood of 12 mm increment ... from ring 3 and ring 8 from the pith to study chemical properties of juvenile wood (ring 3) and transition wood (ring 8), respectively. Thin wafers (200 µm) from earlywood and latewood of...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp:"The relationship between vegetation management and the wood and pulping properties of a Eucalyptus hybrid clone" pdf
... latter three combined) on growth and wood density on Eucalyptus grandis, an increase in wood density with increased growth rate was recorded [46]. A study was carried out on wood density and fibre ... with an increase in growth rate normally leading to a lowering in basic density. In a study to assess the influence of various silvicul- tural treatments (weedy control, fer...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Roles of European and Japanese larch in the genetic control of growth, architecture and wood quality traits in interspecific hybrids (Larix × eurolepis Henry)" pot
... traits including phenology, growth, stem form and wood quality parameters. But, in contrast to these optimistic results, two major facts must be underlined regarding interspecific breeding in ... from intraring density obtained by direct-scanning X-ray densitometry sys- tem on radial increment cores: only the last 6 rings have been included in this estimation. The lengths of heartwo...
Ngày tải lên: 08/08/2014, 01:22