Báo cáo lâm nghiệp: "Micropropagation of Eucalyptus dunnii Maid" pot

... of Micropropagation of Eucalyptus dunnii Maid. M.E. Cortezzi Graça S. Mendes Centro Nacional de Pesquisa de FlorestaslEME3RAPA, Curitiba, PR, Brazil Introduction Among the Eucalyptus ... florescimen- to e do potencial de produ!Ao de sementes de Eucalyptus dunnii Maid. no Brasil. Bol. Pesqui. Florestall4, 1-12 11 Hartney V.J. (1982) Tissue culture...

Ngày tải lên: 09/08/2014, 04:20

... of epicotyls and buds during 3 wk of darkness followed by 2 wk of 16 h of light at 28°C; 2) multiplication by transferring nodes from elongated shoots or clusters of ... to explain the influence of agar. These include the pres- ence of inhibitors, rate of diffusion of mole- cules and variability in the availability of water. This la...

Ngày tải lên: 09/08/2014, 04:20

... micro- propagation of E. viminalis was developed in this study. Multiplication rates of 5-6 shoots/ex- plant were obtained by using 0.2 mg ’ I- 1 of BAP and 0.1 mg ’ I- 1 of NAA on ... and 3 UFPR, School of Forestry, C. P. 2959, 80001, CuritibalPR, Brazil Introduction Eucalyptus viminalis has been established in southern Brazil mainly because o...

Ngày tải lên: 09/08/2014, 02:21

... active contribution of K is underlined. With the hypothesis that the cation is homoge- neously distributed in the plant cell, an increase of +30 mM means that the varia- tion of osmotic ... means that the varia- tion of osmotic potential due to K+ is only of about -0.07 MPa. However, the intra- cellular distribution of potassium has to...

Ngày tải lên: 09/08/2014, 04:20

... number of sites should include the range of soil types subject to plantation forestry in the region. Nevertheless, we hypothesize that the existence of high levels of AM ... fellowships; Professor FT Last, Edinburgh University, UK, for reviewing this manuscript. Original article Patterns of arbuscular- and ecto- mycorrhizal colonization of Eucaly...

Ngày tải lên: 08/08/2014, 18:21

... height of discs within each of the height categories was 0%, 5% (breast height, BH), 12% (base- of- sawlog, BSL), 18% (top -of- sawlog, TSL), 40% and 60% of tree height. The percentage height of individual ... pulp production of Eucalyptus globulus under different indus- trial cost structures, Can. J. For. Res. 23 (1993) 648–656. [9] Brooker M.I.H., A new classification of the ge...

Ngày tải lên: 07/08/2014, 16:21

... total number of individuals of Lepidoptera (B) and of major (C) and lesser (D) important pests collected in a Eucalyptus grandis plantation in the Municipality of Nova Era, State of Minas Gerais, ... use of wood for sawtimber is increasing. However, the potential of wood production of euca- lyptus plantations is constantly threatened by insect pests, including many species...

Ngày tải lên: 08/08/2014, 00:21

... stress solution. The concentration of chloride in leaves was higher than that of sodium. The potassium content was significantly lower in roots of plants exposed to a 300 mM saline ... sensitive provenances of E. microtheca showed the largest amount of sodium in leaves or stems; the sodium content of living plants was very close to that o...

Ngày tải lên: 09/08/2014, 04:20

... Assessment of the effects of below-zero temperatures on photosynthesis and chlorophyll a fluorescence in leaf discs of Eucalyptus globulus L.F. Serrano, M.M. ... Portugal Introduction The sensitivity of plants to low tempera- tures has been assessed by a number of methods, including measurements of visible symptoms of injury, vital staining techn...

Ngày tải lên: 09/08/2014, 04:20

... and allocation of dry matter by analysis of shoot/root ratio (mass of top/mass of root) but use of this ratio has frequently led to incorrect interpretations because of failure to ... E grandis. Despite reports of (often dramatic) increases in growth of E. grandis following application of nutrients, we have little understanding of physiolog...

Ngày tải lên: 09/08/2014, 04:20