Báo cáo lâm nghiệp: "DNA-based control of oak wood geographic origin in the context of the cooperage industry" ppsx

... conforming to a French origin. Each wood lot corresponded to all wood samples originating from one particular cooperage industry. Wood samples of known foreign origin were therefore included in some ... Sci. 61 (2004) 97–104 © INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2003089 Original article DNA-based control of oak wood geographic origin in the context...

Ngày tải lên: 08/08/2014, 01:22

... toxicity induced stunting in seedlings raised at the 150 mg N regime (Fig. 3A and Tab. I). The consistent pattern in Figure 2 with trends in the conceptual model (Fig. 1) confirm suitability of the ... the 100 mg N plant –1 Figure 2. Responses of seedling shoot dry mass, nutrient content and concentration in relation to increasing N supply for one growing season (18 wk)...

Ngày tải lên: 08/08/2014, 00:22

... Dougherty and Hinckley (1981), the maintenance of the high photosynthetic potential for most of an oak leaf’s life is important. Conse- quently, the ability of oak species ... D, Aussenac G (1992) Oak tress under drought con- straints ecophysiological aspects. In: Recent Advances in Studies of Oak Decline. Proceedings of the Internat...

Ngày tải lên: 08/08/2014, 18:21

... to mature wood is completed, leading to a stable wood density in growth rings. Reducing the volume of juvenile wood would increase the overall wood density and the quality of certain wood products ... reduction of juvenile wood and in- creasing the stiffness of juvenile wood [27, 38]. It is well un- derstood that the stiffness of juvenile wood in radiat...

Ngày tải lên: 07/08/2014, 16:20

... Links between wood machining phenom- ena and wood mechanical properties : The case of 0 ◦ /90 ◦ orthog- onal cutting of green wood, Proceedings of the 2nd International Symposium on Wood Machining, ... Marchal R., An Experimental device for the study of wood cutting mechanisms: the Microlathe, Poster Session Proceedings of the 12th International Wood Machining S...

Ngày tải lên: 07/08/2014, 16:21

... inbred indi- viduals often exhibit reduced vigour [46]. Inbreeding in the F 2 probably accounted for the lower rooting performance in this family, but other factors including the difference in ... in the significance of the replicate effect in the multi-setting analysis of rooting percentage. The significance of the multi-setting replicate effect was likely to...

Ngày tải lên: 08/08/2014, 00:22

... number of nodes (from 1 to 4). The type of development of the axillary buds depended upon their position on the shoot (Table II). The buds located at the base of the ramification ... of the bud specific to its physio- logical age and/or linked to the relation of the bud to the other growth centers of the plant. An anatomi...

Ngày tải lên: 09/08/2014, 04:20

... although the start of floral initiation is rather accu- rately known in fruit species, sound information about floral induction and evocation is still lacking. As a preliminary ... pre- diction problem, we began experimenting on apple ’bourse’ shoots. The bourse is the swollen basal part of an inflorescence axis at the onset of fruit deve...

Ngày tải lên: 09/08/2014, 04:20

... role of leaf water status in explaining the after- noon depression of A in a range of spe- cies of the temperate zone. In fact, the diurnal changes in A in the J. ... related to the position of the whorls on the main orthotropic stem in J. copaia and to the position of the leaves on the plagiotropic branches in E. f...

Ngày tải lên: 09/08/2014, 04:20

... types on the northern slope of the Natural Reserve Zone of Changbai Mountain. The elevation influence on soil C and N mineralization was also discussed. The results indicated that for the given ... significant. The complex mechanism of their impact on the soil C and Nmineralization of Changbai Mountain remains to be studied further based on data of field measurement...

Ngày tải lên: 07/08/2014, 10:21