...
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...
...
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...
... 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...
... 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...
... 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...
...
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...
...
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...
...
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...
...
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...
... 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...