Báo cáo lâm nghiệp: "Across-site heterogeneity of genetic and environmental variances in the genetic evaluation of Eucalyptus globulus trials for height growth" pps

Ngày tải lên: 07/08/2014, 16:20

... by the square root of the respective sampling variances, obtained from the inverse of the aver- age information matrix. Using the estimated components of variance, approximations of additive genetic, ... from the sampling (co )variances of the components in the denominator of equation (3). The standard errors of were calculated according to the general e...

Ngày tải lên: 08/08/2014, 00:21

... Changbai Mountain. The elevation influence on soil C and N mineralization was also discussed. The results indicated that for the given vegetation type of Changbai Mountain the C and Nmineralization ... on the soil C and Nmineralization of Changbai Mountain remains to be studied further based on data of field measurements in the future. Keywords: soil moisture;...

Ngày tải lên: 07/08/2014, 10:21

... biomass investment in branches in low light. However, in our study, there was an increase in the fractional investment in needles with increasing Q int in the fertile site, and no effect of Q int in the ... Differences in branching angle, branch length, and frequency of branching modify the aggregation of the foliage on the branches [19, 20, 40, 78], a...

Ngày tải lên: 08/08/2014, 01:21

... macrophages, and the activation of microglia and astrocytes at the peak stage [11, 12]. Brain cells, including astrocytes, react to the inflammatory cells infiltrating in the CNS and encase the damaged ... Intermediate Filaments, Nestin and Vimentin, Expression in the Spinal Cords of Rats with Experimental Autoimmune Encephalomyelitis 11 Fig. 1. Immunohistochemical...

Ngày tải lên: 07/08/2014, 17:22

... computed as 4V f /Vp. They mostly fit into these ranges but for total height, they rather stand in the upper range while for stem form, they stand in the lower range of ... crooked and 5: straight stem; Branching density was estimated as the ratio of the number of branches on the 1988- stem increment to the length of that increment and expressed as the numb...

Ngày tải lên: 08/08/2014, 01:22

... fast-growing species, poplar enhances the possibility to cover increasing wood de- mands. Since 1948, research performed at the former Institute for Poplar Cultivation (currently the Institute for ... ‘Hoogvorst’ and ‘Beaupré’. This in- dicates a positive genetic in uence of the mother clone in ‘Beaupré’ and ‘Hoogvorst’ in lowering the heartwood propor- tion. Alth...

Ngày tải lên: 07/08/2014, 16:21

... consequences for the modelling work [24]. An example of the phenomenon is shown in Figure 3 for an old tree crown. In Figure 3, dead and living branches were plotted together. The evolution of the within-whorl ... was defined as the dominant height (SI: average height of the 100 largest trees per hectare, in m) at age 100 years. It was com- puted using the...

Ngày tải lên: 08/08/2014, 01:22

... with the fra- gility of the argan nut contained within the slightly cracked stone and weighing less 5 g in average [15] but rich in lipids and carbohydrates [15]. Therefore, in the absence of cold, ... for the purpose of establishing a simple germination procedure adaptable to various nursery situations. The beginning of germination of argan seeds which, were...

Ngày tải lên: 08/08/2014, 01:22

... seed cones of P cembra, and then to measure the respective impact of insects and other mortality factors on the potential of natural regeneration of stone pine forests. Insect damage ... 1991). The nutcracker harvests and hides pine seeds by the end of summer, and stored seeds not used during the following winter may thus germinate...

Ngày tải lên: 08/08/2014, 18:21