This study was conducted in Syria Street, which connects between Yemen Square
and Republic Square in Latakia City. This paper cares to analyze arboreal rows in SYRIA
Street and to study their relation with the service and structural engineering com
ponents Of
that street . Moreover, the ideal state of these street trees was evaluated .Results of this
paper revealed, that the arboreal rows contain two botanic species (Ficus nitida L,
Jacaranda mimosaefolia Don.), which served to furnish the street with monotonic beauty
and humility in botanic diversity,and prominent breaks in these rows. Findings showed an
ideal decrease in the value of the two used botanic species where (Ficus nitidia) attained a
mark of 6.8/10 and (Jacaranda mimosaefolia) 6.34/10 . Corresponding to the relation of
trees to some street engineering elements, results indicated inobservance of standard
dimensions between planted trees and service elements. which negatively influenced the
aesthetic and position value of buildings’ and stores’ facets and guiding signs and
billboards on the one hand, and risk increase on pedestrians and vehicles due to blocking
vision of traffic signs and overlap of tree crowns with electricity and lighting posts on the
other hand.
This study aimed to obtain seedlings balanced and superior in growth, by searching
the effect of seed size on the growth and development of seedlings of carob tree
( Ceratonia siliqua L.) developing in containers Minirhizotron in the growth room in
Research Center in Bouka-Lattakia. Seeds were divided into three categories (large-size
LS, control CS, small-sized SS) and studied several quantities indicators of growth and
development of the total shoot and root of the seedlings for a period of three months.
For a radical system, results indicated a high significant superiority in the large
seeds values for the main root of the overall growth rate such as length (cm) and the speed
of growth (cm/3days) and secondary roots (total number, total length/cm) height to control
and small seeds. And the significant superiority of the seeds of the control on the small
seeds.
It has also given large seeds higher values regarding all indicators related to the shoot
system such as average diameter and average height and average number of phalanges
stem and leaves, and ending with the dry weight of shoots.
Results for the study of periodic growth curves for the main root and main stem of
the three treatments indicated the presence of a great similarity in the overall appearance of
these curves, which refers that the appearance is not affected by this change in the amount
of seed size. On the other hand, the phenomenon was observed in contrast growth
Antagonism clearly between the totals shoot and root with any end to the growth of main
root accompanied by a junior at the end of the main stem growth and vice versa.
This research was carried out during 2014 - 2015 in Scientific Centre for Agricultural
Researches. This research aims to determine the effect of some biological and genetic
indicators on the success of Carob seedlings in nurseries by studying three
kinds of
grafting: Auto-grafting, Homo-grafting and Hetero-grafting. Rootstock aged one year and
resulted by two chosen genetic types, namely, SnobarJablah and Alhafa were used. Scions,
they were taken either from seedlings with age of one year resulted by these two types or
from branches aged one year from the selected two types as well. Grafting was conducted
by using Whip Graft way in spring.
Auto-grafting has indicated the importance and the role of biological and genetic
factors for grafts and their impact on rates of grafting success. Concerning rates of success,
the results have shown that Auto-grafting surpassed Hetero-grafting with a significant
reference for both of two genetic types, regardless if the used scion was young or old.
In addition, Auto-grafting has shown surpass on other kinds of grafting, in terms of
subsequent growth of scions. On the other hand, a variety in biological indicators values
has been noticed between the two genetic studied types. In favour of SnobarJablahtype
againstAlhafaʼs type. However, the differences of values were not significant for the most
of conducted measures.
As for the age of scions, the results have pointed out that values of Hetero-grafting
with young scions surpassed values of Hetero-grafting with old scions in terms of the rate
of grafting success and values of biological studied indicators.
The aesthetic and environmental values of a street are greatly influenced by the
selection of an appropriate arboreal species and the relation between its planted trees with
the different engineering elements of a street . Street trees play a signi
ficant role in forming
the architectural and aesthetic texture of the city. They, forther more, enhance material,
environmental and cultural aspects of the city. This paper aimes to analyze arboreal rows
in HALAB Street and to study their relation with the service and structural engineering
components Of that street . Moreover, the optimal situation of these street trees was
evaluated using (Li et al, 2011) equation.Results of this paper revealed prominent breaks in
the arboreal rows, and that these rows contain four tree species (Jacaranda mimosaefolia
Don., Ficus nitida L., Eucalyptus rostrata S., Melia azedrach L.), which served to furnish
the street with monotonic beauty and humility in botanic diversity. Findings showed
decrease in the optimal value of the two used botanic species where (Jacaranda) attained a
mark of 6.22/10 and (Ficus nitidia) 7/10 and (Eucalyptus) 7.28/10 and (Melia) 7.53/10.
Corresponding to the relation of trees to some street engineering elements, results indicated
inobservance of standard dimensions between planted trees and service elements. which
negatively influenced the aesthetic and position value of buildings’ and stores’ facets and
guiding signs and billboards on the one hand, and risk increase on pedestrians and vehicles
due to blocking vision of traffic signs and overlap of tree crowns with electricity and
lighting posts on the other hand.
