Báo cáo lâm nghiệp: "Paternity analysis of Populus nigra L offspring in a Belgian plantation of native and exotic poplars" doc

... between males of P. × canadensis and P. ni gra in fertilizing P. nigra females in the artificial species-mixed Belgian poplar stand. A paternity analysis also revealed non-random intra-specific mating ... total planta- tion) were analysed using 14 SSR loci (Tab. II). Furthermore, P. nigra cv. Italica, located outside the poplar plantation was also included as a candidate f...

Ngày tải lên: 07/08/2014, 16:20

... disturbances and malformations without pathological affec- tions have appeared in pines and particularly in 3 yr old pines (twisting of branches and leaders, abundant fascicle shoots, ... replications comprising a treatment) of the leaves were analyzed chemi- cally. Results and Discussion Analytical results showed the main char- acteristics of...

Ngày tải lên: 09/08/2014, 04:20

... Three lines are shown in B; the solid black thick line illustrates average daily glasshouse VPD whereas the solid thin black line illustrates average daily field VPD. The broken line illustrates radiation. ... pe- riod (late July, 2004), all seedlings were destructively sampled. Each seedling was carefully excavated, roots were washed, and leaf area of all trees was measured with an LI-3...

Ngày tải lên: 07/08/2014, 16:20

... generally enable us to go back very far in the past. Soil analyses would require repeated sampling at exactly the same place at a pace of several decades and exactly the ... agricul- tural land, but also to the Nancy area and the Moselle Valley with its steel industry and road traffic, in addition to pollutants coming from longer dist...

Ngày tải lên: 08/08/2014, 18:21

... Avanzo Valle del Cinca Spain 16 30.2 43 69.8 62.8 SL2 Populus x euramericana cv. Luisa Avanzo Valle del Cinca Spain 16 29.7 38 77.1 74.9 SL3 Populus x euramericana cv. Luisa Avanzo Valle del ... 58.8 SM2 Populus x euramericana cv. MC Valle del Cinca Spain 16 30.2 40 74.7 39.0 SM3 Populus x euramericana cv. MC Valle del Cinca Spain 16 29.4 39 74.8 41.7 SL1 Populus x euramericana...

Ngày tải lên: 08/08/2014, 01:21

... Hetauda natural population and Hetauda plantation; B: Shivapur natural population and Surai plantation; C: Hattisar natural population and Thakurdwara plantation; D: Godawari natural population and Attaria ... and Attaria plantation; E: Pipariya natural population and Shuklaphanta plantation. 606 M. Pandey et al. investigated populations is insufficient to investigate the s...

Ngày tải lên: 08/08/2014, 01:22

... (Table 5) into smaller areas and to evaluate the length of forest roads and other parameters at a smaller scale. e small area gives the better evaluation but it is not useful to separate ... geometrical skidding distance 150 m; in mountains with suitable values of morphological parameters 19 m/ha by obtainable efficiency 80% and average geometrical skidding distance 170 m...

Ngày tải lên: 07/08/2014, 10:21

... these ecological gradients and especially in edges and (3) to collect high-quality ecological indices. 2. MATERIALS AND METHODS 2.1. Sampling strategy and study area In order to accurately analyse ... respect an orthogonal sampling plan, i.e., a complete, balanced two- factor plan for soil water and mineral richness which would allow a proper estimation of the main effects...

Ngày tải lên: 08/08/2014, 00:22

... T., Pascual L. , Trasobares A. , Examining alter- native landscape metrics in ecological forest landscape planning: a case for capercaillie in Catalonia, Investigaciones Agrarias, Sist. Recur. For. ... require individual tree information and specific ecological data. Third, an additional capability for linking financial and economic data, i.e. unit costs and prices, to cultura...

Ngày tải lên: 08/08/2014, 00:22

... modelling of wood treated at high temperature by proposing a theoretical approach at the micro-particle scale that allows a macroscopic modelling of the “thermal, chemical and physical” coupled ... De façon générale, le traitement thermique conduit à une augmen- tation sensible du taux de cristallinité global de la cellulose, la raison la plus probable étant un changement de l état...

Ngày tải lên: 08/08/2014, 00:22