Báo cáo lâm nghiệp: "Estimation of genetic parameters European black poplar (Populus nigra Consequence on the breeding strategy" pdf

Báo cáo lâm nghiệp: "Estimation of genetic parameters European black poplar (Populus nigra Consequence on the breeding strategy" pdf

Báo cáo lâm nghiệp: "Estimation of genetic parameters European black poplar (Populus nigra Consequence on the breeding strategy" pdf

... 5) with a core of clones between 37 and 44 degrees Estimation of genetic parameters in the European black poplar (Populus nigra L.). Consequence on the breeding strategy Ch. ... discussion, need to be based on the genetic and economic properties of the species. The present study aims to estimate the genetic parameters in...
Ngày tải lên : 09/08/2014, 02:21
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Báo cáo khoa học: "Estimation of genetic parameters in eastern cottonwood (Populus deltoïdes Consequence for the breeding strategy" potx

Báo cáo khoa học: "Estimation of genetic parameters in eastern cottonwood (Populus deltoïdes Consequence for the breeding strategy" potx

... correlation either among themselves or with other traits. The high variability and the strong genetic control of these traits permit selection either among clones or among parents ... (1988) Estimation of genetic parameters in the European black poplar (Populus nigra L.). Consequence on the breeding strategy. Ann. Sci. For. 45, 2...
Ngày tải lên : 09/08/2014, 02:21
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Báo cáo lâm nghiệp: "Estimation of the biomass stock of trees in Sweden: comparison of biomass equations and age-dependent biomass expansion factors" ppsx

Báo cáo lâm nghiệp: "Estimation of the biomass stock of trees in Sweden: comparison of biomass equations and age-dependent biomass expansion factors" ppsx

... involved in the cal- culations of forest carbon sinks is needed in the negotiations of the Climate Convention. Furthermore, analysis of the sources of error and identification of the key sources ... INTRODUCTION Estimation of the biomass and carbon stock of trees has gained importance as a result of the Climate Convention and the Kyoto Protocol. Extraction and...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp: "Estimation of carbon stocks in a beech forest (Fougères Forest – W. France): extrapolation from the plots to the whole forest" pps

Báo cáo lâm nghiệp: "Estimation of carbon stocks in a beech forest (Fougères Forest – W. France): extrapolation from the plots to the whole forest" pps

... choose the density of the wood depending on the stage of decomposition. A Monte Carlo’s simulation was used to try to quantify the accuracy of these results. An analysis of the inaccuracies in the levels ... classes (2 for the soil and 3 for the humus). There was some uncertainty in the estimation of the stocks of carbon in the soil which were much higher i...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp:"Estimation of crown radii and crown projection area from stem size and tree position" pps

Báo cáo lâm nghiệp:"Estimation of crown radii and crown projection area from stem size and tree position" pps

... approach is based on two assumptions. The first is that the potential horizontal crown extension is a function of stem diameter, and the second is that the distance between the tree and its competitors ... direction is limited by the position of competitors within a certain angle on both sides of the radius (Figs. 1A and 1B) and by their crown width at the height whe...
Ngày tải lên : 08/08/2014, 01:21
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Báo cáo sinh học: " Estimation of genetic parameters of preweaning performance in the French Limousin cattle breed" ppt

Báo cáo sinh học: " Estimation of genetic parameters of preweaning performance in the French Limousin cattle breed" ppt

... the need for inversion of the large coefficient matrix of the mixed model equations (Henderson, 1973) or the inverse of the complete covariance matrix of the vector of ... the sign and magnitude of this correlation is often a topic of some debate. For the estimation of (co)variance components REML (Patterson and Thompson, 1971) i...
Ngày tải lên : 14/08/2014, 19:22
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Báo cáo sinh học: "Estimation of genetic parameters of egg production traits of laying hens by restricted maximum likelihood applied to a multiple-trait reduced animal model" pps

Báo cáo sinh học: "Estimation of genetic parameters of egg production traits of laying hens by restricted maximum likelihood applied to a multiple-trait reduced animal model" pps

... the low residual sum of squares of the genetic model used to describe the data, the linearity of half-sib on individual regression, the coefficient of symmetry and the ... showed a rather small genetic antagonism between the group of egg production traits and egg density on one hand and that of egg weights on the other h...
Ngày tải lên : 14/08/2014, 20:20
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Báo cáo sinh học: " Estimation of genetic parameters for body weight traits in squab pigeons" pdf

Báo cáo sinh học: " Estimation of genetic parameters for body weight traits in squab pigeons" pdf

... fixed effect of the jth foster parent; Bk is the fixed effect of the kth clutch; Sl is the fixed effect of the lth season in which the squab was hatched; E!!kvm is the random error. ... as the age of the squab increases, the preovipositional maternal effect on body weight may become insignificant compared to the effect of...
Ngày tải lên : 14/08/2014, 20:20
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Báo cáo lâm nghiệp: " Comparison of three methods to determine optimal road spacing for forwarder-type logging operations" pdf

Báo cáo lâm nghiệp: " Comparison of three methods to determine optimal road spacing for forwarder-type logging operations" pdf

... V × C travel Therefore the correction factor consists of a constant of 4 and the network correction factor as C net . e network correction factor is computed by dividing the effective mean ... function of distance. Although the cycle time equations are appropri- ate for this study, the ORS values derived from the case study cannot be applied to other areas unless the...
Ngày tải lên : 07/08/2014, 04:20
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Báo cáo lâm nghiệp: "Transformation of solar radiation in Norway spruce stands into produced biomass – the effect of stand density" doc

Báo cáo lâm nghiệp: "Transformation of solar radiation in Norway spruce stands into produced biomass – the effect of stand density" doc

... found in the accuracy of PARa estimation on a seasonal basis. e use of the horizontally placed integration sen- sors does not fully correspond to the real situation of PAR absorption by the crown ... from the fundament of the relationship between biomass formation and absorbed solar radi- ation, especially for the PAR. is relation is formally described on the...
Ngày tải lên : 07/08/2014, 10:21
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