Báo cáo lâm nghiệp: "Diversity of endomycorrhizal fungi and their synergistic effect on the growth of Acacia catechu Willd " pot

... colo- nization and plant growth due to the interchange of carbon, phosphate and nitrogen between the host fungi and bacteria. According to B-E-D and M (1998), the dual inoculation of AM and ... attack in the rhizosphere of A. catechu. On the basis of the results it can be concluded that the co- inoculation of Rhizobium sp. and Trichode...

Ngày tải lên: 07/08/2014, 04:20

... a standard. e results indicated that the mycelial cell walls contained 19.40 mg of ionically bound protein per gram of the cell wall preparation (fresh weight) and 77.6 mg per gram of the ... water (pH 5.2) and autoclaved for 5 min. e concentration of the WF used in the experiment was 30 mg of mycelium powder per 100 ml of liq- uid medium. Extraction and ana...

Ngày tải lên: 07/08/2014, 10:21

... formation and the first expression of sexuality. The second phase is related to the expansion of the mature crown by the occurrence of numerous reiterated complexes (ASD 5, [20]), whereas the tree ... observed on A maxa and LMA but not on A maxm . These results demonstrated a weak ability of photosynthetic plasticity in response to light conditions, and that v...

Ngày tải lên: 08/08/2014, 00:22

... which correspond on the one hand to very acid and nitrogen poor conditions, e.g. sites of the Cladonio-Pinetum Juraszek 1927 and Leucobryo-Pinetum Matuszk. 1962 [19, 37] and on the other hand to very ... clusters 2–4. The comparably high means of the R and N values of these clusters are the conse- quence of atmospheric depositions on naturally acid sites. Mos...

Ngày tải lên: 08/08/2014, 00:22

... gas-tight growth chamber with the same other growing conditions. CO! concentration was controlled and monitored with an IRGA and the hourly C0 2 uptake or evolution was computed ... expanded leaves presented the same anatomical characteristics as the control (Figs. 2 and 3). Effect of carbon nutrition A 40% increase in the photosynthe...

Ngày tải lên: 09/08/2014, 04:20

... involved scoring the proportion of cortex colonized by the endomycorhizal symbiont as follows: 0: no fungal infection, 1: trace of fungal infection, 2: less than 10% of fungal infection, 3: fungal infection ... presence of AM fungi belonging to the Glomineae order, which is represented by two groups of spores belonging to the Glomaceae and Acaulosporaceae fami- lies. The...

Ngày tải lên: 08/08/2014, 00:22

... collinitus and S. mediterraneensis. The survival and adaptation of P. halepensis trees on calcareous marly soil may be due to their symbiotic associations with these symbionts. Future investigations on ... and intensity of the disturbance, and the environmen- tal conditions [6, 18, 28]. For instance, the diversity of P. halepensis ectomycorrhizal basidiomycetes an...

Ngày tải lên: 08/08/2014, 01:22

... number of effective size of fathers per mother, but high effective sizes of mothers, fathers and parents at the level of the seed orchard. Finally, the calculation of effective size of mothers, fathers ... estimates of the effective size made respectively with the data of the production of flow- ers, with the production of flowers and the co-flowering time, a...

Ngày tải lên: 07/08/2014, 16:21

... in the industrial processing of poplar wood remains the occurrence of tension wood fibres and their distribution within the stem volume. The formation of tension wood is induced by a gravitational ... 15] for other clones, allowing to conclude that the wood of these inter-American clones is more stable. A more profound classification of wood of these clones should be m...

Ngày tải lên: 07/08/2014, 16:21

... (Washington and Oregon, west of the Cascade range). The test was planted using rooted cuttings from the best seedlings of the best provenances (selection based on survival and growth) . The best 20% of ... strong correlations with the width of the EW and LW zones and weaker but significant correlations with zone proportions (i.e. increasing ring width increase...

Ngày tải lên: 08/08/2014, 00:21