Báo cáo lâm nghiệp: "A micropropagation system for Eucalyptus dunnii x Eucalyptus sp" pot

... greenhouse under high humidity. Discussion and Conclusion Micropropagation is a viable system for mass propagation of E. dunnii x Eucalyp- tus sp. High shoot multiplication rates were ... survival) under greenhouse conditions indicates, once more, the potential of this method to pro- pagate E dunnii x Eucalyptus sp. hybrids. References De Fossa...

Ngày tải lên: 09/08/2014, 04:20

... (Eds.), Modelling Forest Systems, CAB International, Wallingford, Oxfordshire, UK, 2003, pp. 75−84. [61] Kozak A., Effects of multicollinearity and autocorrelation on the variable-exponent taper functions, ... Vanclay J.K., Modelling forest growth and yield. Applications to mixed tropical forests, CAB International, Wallingford, UK, 1994. [99] Vanclay J.K., Growth models for tropical forests...

Ngày tải lên: 07/08/2014, 16:21

... function for loblolly pine, Can. J. For. Res. 17 (1987) 87–92. [36] Muhairwe C.K., Taper equations for Eucalyptus pilularis and Eucalyptus grandis for the north coast in New South Wales, Australia, For. ... critical look at procedures for val- idating growth and yield models, in: Amaro A., Reed D., Soares P. (Eds.), Modelling forest systems, CAB International, Wallingford, Oxfor...

Ngày tải lên: 07/08/2014, 16:21

... The first exam- ple examines, for a given ontogenetic stage, if species-level trait breadth differs among species. In this case, the example addresses a species-level scenario for the hypothesis ... exemple, la densité et les caractéristiques du bois de tension) et la physiologie aux niveaux de la plante entière (par exemple, les isotopes du carbone et de l’azote) et de la feuille (par exem...

Ngày tải lên: 07/08/2014, 16:21

... equations for second growth mixed conifers of northern California, For. Sci. 30 (1984) 1103−1117. [4] Bousson E. Gestion forestière intégrée. Approche basée sur l’analyse multicritère, Gembloux, Les ... the canopy % Maximisation Plant “bioquantity” Plant cover under the canopy % Maximisation Stability Stand stability index % Maximisation Wood quality Proportion of mature wood % Maximisatio...

Ngày tải lên: 07/08/2014, 16:21

Ngày tải lên: 07/08/2014, 16:20

... according to the formulae: Dx = Xr − Xl (4a) Dy = Yr − Yl (4b) X = (Xl + Xr)/2(4c) Y = (Yl + Yr)/2 (4d) where, Dx, Dy are the stem diameters in ZX and ZY planes, respec- tively, X and Y are the ... time is required for the laboratory measurements (up to 4 h for one 2-m-long log) in addition to the field work. Furthermore, it is a destructive method and therefore is not suitable for f...

Ngày tải lên: 07/08/2014, 16:21

... 763 wood density was 0.426 for Df, 0.385 for Mp and 0.362 for Sp. The whole-ring values of standard deviation were in magnitude order of 0.201 for Df, 0.138 for Ns and 0.106 for Mp, giving coefficients ... end-product qual- ity [7, 9] imply a potential utility of within-ring parameters for clonal selection for breeding and deployment [17]. Besides pro- viding the additional in...

Ngày tải lên: 08/08/2014, 00:21

... resulting model was: y j f x j , β() ε j += ∂f X, β() ∂β Z β() ∂f x 1 , β() ∂β 1 … ∂f x 1 , β() ∂β k . . . . . . . . . ∂f x n , β() ∂β 1 … ∂f x n , β() ∂β k = ′′ s 2 b() ... growth and yield models, in: Amaro A., Reed D., Soares P. (Eds.), Modelling Forest Systems, CAB International, Wallingford, Oxfordshire, UK, 2003, pp. 271–293. [23] Judge G.G., Car...

Ngày tải lên: 08/08/2014, 00:22

... large enough to exceed the given threshold (Fig. 1B). A formation of a false ring [14] or a light ring [13] may be the most well- known, extreme phenomenon of such cases. If the index value(s) exceeds ... http://www.edpsciences.org/forest or http://dx.doi.org/10.1051/forest:2005093 A method for multiple intra-ring demarcation 13 with increasing intra-ring position (c.f. Fig. 1A). For such...

Ngày tải lên: 08/08/2014, 00:22