This study was carried out in nine sites of various altitudes. The sites represent
scattered zones of Cordia myxa Forsk. as an introduced species in the coastal region,
Lattakia governorate during 2010-2011. The research showed that there is an eff
ect of
altitude on the investigated trees in the different sites, and that there were significant
differences in relation to the characteristics of the average of the following: tree height,
length of leaf stalk, catkin length, canopy, fresh and dry leaf weight, and fruit weight.
However, there were no effects of altitude on the species. There were also no observed
significant differences in relation to the characteristics of the average of the following: the
tree diameter, trunk length, flower number in one catkin, leaf length, leaf width, leaf area,
leaf humidity percentage, flowering start, and flowering period. It can be said that there
were changes in the morphological characteristics of the studied trees in the different sites,
which appeared to be a preliminary indication of the impact of altitude on the variations of
some morphological characteristics of Cordia myxa Forsk.
The accuracy of the taxon T. cinnabarinus (Boisduval 1867) as a distinct species, or
as a synonym of Tetranychus urticae Koch 1836, is still standing as a controversial issue of
taxonomy and as a point of discussion. T. cinnabarinus and T. urticae
have been regarded
in the first stage of this study as one species, and it was characterized depending on the
distinctive characteristics of both genders. In the second stage, the two species were
distinguished according to many morphological characters that have been recommended by
authors cited T.cinnabarinus as a valid species. The efficiency of some measures adopted
to distinguish both T. cinnabarinus and T. urticae were also tested. Measurements didn't
match local samples that showed obvious differences, T. cinnabarinus & T. urticae are not
likely to be considered as two different species according to recent researches. Both T.
cinnabarinus and T. urticae were detected on various wild and cultivated host plants. One
hundred samples of plants presented symptoms of tetranychid attacks were collected from
different localities in Lattakia province. Both T. urticae and T. cinnabarinus were found on
29, 9 samples, respectively.
In this research, nine inbreed lines of squash (Cucurbita pepo, L) have been
studied during 2007-2008 seasons. The study contains plant phonological
phases, and the most important morphological and productivity characteristics
related to fruit yie
ld to evaluate the characteristics of every line and identify the
economical lines to use it in the breeding programs. The study showed genetic
variation between the groups for some important economic characteristics as
(the number of fruits per plant, percentage of female flowers, yield per plant,
stem long and number of nodes till the first female flower). The study also
showed that the inbreed lines of squash is a rich source of variation and can be
use in a breeding program to product squash hybrid. The results appeared also
the positive correlation between the productivity and some important economic
characteristics, such as percentage of female flowers (r=0.871**), the number of
fruits per plant (r=0.976**). Whereas negative correlation with the nodes till he
first female flower (r=- 0.494) and internodes long (r=- 0.447). Using cluster
analysis, the inbreed lines were classified into 2 distinct classes A and B, Class
A contained seven inbreed wreathe class B contained Tow inbreed lines.
Five species of the genus Poa L. from (Poaceae) were collected and studied in
Lattakia, they are : P. annua ، P.infirma ، P. pratensis ، P. bulbosa ،P. nemoralis.
This study put data base of the morphological features which included : habit, leaves
,
ligule, the structure of the inflorescence , spikelet, floret, micro-morphological
characteristics which contained the epidermal structure of abaxial leaf surface, and the
difference between costal and inter-costal zones of the 5 species, studying of pollen grain
clarified the similarity in shape but there was a simple difference in measurements . Then ,
data from micro and macro morphological study were used to made a Dendrogram by
using Statistica . The dendrogram showed the linkage of two annual species P. annua ،
P.infirma in a cluster , every one of three another species had his specific cluster , P.
nemoralis was closer to the annual species .
In this work Rosmarinus officinalis L. grown in Syria was studied. The
general characteristics of the whole plant, as well as the leaves and the flowers
were determined. It was shown that there are two varieties of Rosmarinus one
having violet flo
wers and the other having white flowers. The two varieties
were compared morphologically and they were in accord with what was
mentioned in the literature.
The two varieties were also compared chemically and it was possible to
explain the differences mentioned in the literature by differences in the
composition of the volatile oil.
The chemical study of the drug shows the quantity as well as the percentage
of its constituents. At last the main substitute of the drug used in Syria was
shown and compared with the main drug. It was shown that the composition of
the volatile oil of the substitute is different from the composition of the volatile
oil of Rosmarinus, thus it can not be used for the same purpose.
The research was carried out in the agricultural season 2016-2017 the village of
DweirRaslan Tartous governorate with three planting dates (20 November - 10 December -
1 January) and three densities (12 - 14 - 16 plants / m2) Where the planting tim
e was the
main pieces and the plant density occupied the dissecting pieces once to study the effect of
planting date and plant density on some morphological characteristics of white thermos
plant.
The results showed that dates of the early dates (November 20) were higher in plant height,
with an average of 64 cm and surface area of the paper surface at an average of 24.367
thousand. M 2 / ha and in shape of the length of the century with an average of 7.50 cm.
As for the plant density, the plants of density12 plants / m 2 in the height of plant exceeded
an average of 65.6 cm and length of the century with an average of 8.13 cm, while the
plants of density 16 plants / m 2 in the area of paper area average 24.213 thousand. M2 / ha
There have been numerous studies dealing with the environmental and social aspects of the
type of buildings with internal courtyards, through studying the functions of the internal
courtyard, environmental, utilitarian, social and formative. but th
ese studies did not address
the importance of internal courtyard in achieving the ease of spatial orientation, through its
role in easy access to the space required In buildings in general, and in university buildings
in particular.
The research starts from the following hypothesis: The morphological and Syntactical
characteristics of the internal courtyard of the university buildings affect the ease of
orientation of the users, and aims to identify these characteristics that achieve easy access
to the goal. For this purpose, including theoretical and practical colleges, where a special
description of the morphological characteristics of the internal courtyard in the university
buildings, and determinants that help the designer in the use of the internal courtyard in
designing of spatial configurations of the university buildings to achieve the ease of spatial
orientation.
