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Register a new userA Preliminary Study of Some Morphological Characteristics of Cordia Myxa Forsk. Species Scattered in Some Zones in Lattakia Governorate
دراسة تمهيدية لبعض الصفـــات الشكلية لنوع الدبق Cordia myxa Forsk. المُبَعثر في بعض مناطق محافظة اللاذقية
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أجريت هذه الدراسة في عشر مواقع متفاوتة الارتفاع عن سطح البحر تمثل بعض المواقع الذي يوجد فيها نوع الدبق بشكل مبعثر Cordia myxa Forsk. كنوع مدخل إلى المنطقة الساحلية في محافظة اللاذقية خلال عامي 2010–2011 م، هذا البحث أظهر تأثير الارتفاع عن سطح البحر على الأشجار المدروسة في المواقع المختلفة و ظهرت فروق معنوية في الصفات المتعلقة بمتوسط كل من: ارتفاع الأشجار ، طول عنق الورقة ، طول العنقود الزهري ، التغطية الشجرية ، الوزن الرطب و الجاف للأوراق ، وزن الثمار، بينما لم يظهر أي تأثير للارتفاع عن سطح البحر و لم يلاحظ وجود فروق معنوية في الصفات المتعلقة بمتوسط كل من : أقطار الأشجار،عدد الأغصان الرئيسية ، طول الجذع الرئيسي ، عدد الزهيرات في النورة ، طول الورقة و عرضها، مساحة سطح الورقة، الرطوبة النسبية للأوراق و أخيراً بداية الإزهار و مدة الإزهار. و من هنا يمكن الاستنتاج بأنه توجد تغيرات طفيفة في الصفات الشكلية في الأشجار المدروسة في المواقع المختلفة تبدو و كأنها مؤشر أولي لتأثير الارتفاع عن سطح البحر على تغيرات بعض الصفات الشكلية لنوع الدبق.
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 effect 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.
References used
AUGUSTA, C. ; MANUE, M. ; and ÂNGELO ,C. O. Soil, slope and drainage in a cork oak woodland in Southern Portugal , Instituto Superior de Agronomia, (Universidade Técnica de Lisboa), Tapada da Ajuda 1349-017 Lisboa, Portugal , Forest Ecology and Management , Volume 255, Issues 5-6, 2008, 1525-1535
CRONQUIST , A . , An integrated system of classification of flowering plants, Columbia University Press , N . Y. 1981
CHALABI M. N. , Analyse phytosociologique , phytoecologique , dendrometrique et dendroclimatologique des fortes de Quercus cerris subsp. Pseudocerris et contribution a l etude taxonomique du genere Quercus L. en Syrie , These de Doctrat es – sciences , Universite d Aix-Marseille III , 1980 342 p. + annexes de 171p
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This study was carried out during 2014-2015 in two different nurseries located in
University nursery (Lattakia governorate) and Salhab nursery (countryside of Hama
governorate). Seeds were taken from two sites of Lattakia governorate (Mashqita– Bsn
ada)
where Cordia myxa exists as exotic species in some coastal regions and three treatments in
addition to control were examined .The results showed that there is an effect of
scarification of seeds on investigated treatments and were significant differences in
germination percentage in both sites which recorded 55% in university nursery and 35% in
Al-Ghab nursery. While there were not contrast between the soaking in boiling and tap
water treatments on the seed germination energy in Al-Ghab nursery. Scarification
treatment gave higher value of germination energy 25% in Al-Ghab nursery and 21.66% in
university nursery , while the same treatment decreased germination velocity compared to
other treatments in university nursery which seed needed in average ( 8,01 day) whereas
the same treatment increased germination velocity in Al-Ghab nursery which needed (1,54
day). Finally, regarding to cutting ,There is not observe to any positive influence to
cuttings which treated in ABA hormone (1g/l) for (10,20,30 m). It could be deduced that
there were changes in germination percentage, germination energy and germination
velocity in two sites which appeared to be a Preliminary indication of impact of the some
dormancy breaking treatments on investigated indications of Cordia myxa Forsk. species .
At this study, two species of genus Equisetum L. have been recorded, that they were: Equisetum telmateia L. and Equisetum ramosissimum Desf.
E. ramosissimum Desf. was recorded for the first time in Lattakia.
The morphological features were used to
separate two species: ( number of the scaly leaves in the node area, shape of the sheath, and number of its teeth, number of the grooves at the stem, length of the strobilus and its color, length of the lateral branches).
This study showed that: the spores had three coats, the exosporium rounded by the
spore like bars with a wide terminal that called: elaters.
Also showed obvious difference in measurements the strobilus and the shapes
of sterile and fertile stem.
At this study, two species of genus Equisetum L. have been recorded, that they were:
Equisetum telmateia L. and Equisetum ramosissimum Desf.
E. ramosissimum Desf. was recorded for the first time in Lattakia.
The morphological features were used to
separate two species: ( number of the scaly
leaves in the node area, shape of the sheath, and number of its teeth, number of the grooves
at the stem, length of the strobilus and its color, length of the lateral branches).
This study showed that: the spores had three coats, the exosporium rounded by the
spore like bars with a wide terminal that called: elaters.
Also showed obvious difference in measurements the strobilus and the shapes
of sterile and fertile stem.
The aimsof this research were to morphologically characterize 27 local genotypes of
tulip,to evaluate the genetic variability between them using 32 morphological traits, and to
determine their chromosomal number.
The results allowed the distinctio
n between the studied genotypes based on the
morphological characterization of all vegetative,floral andbulb traits. Results confirmed
that the main limiting factor for distribution over the screened regionwas the high above
sea level.All genotypes were divided into two main groups, the firstone included genotypes
located at 400 - 850 m of altitude, and the second one located between 950 -1450 m.
The microscopic analysis results showed that all the studied genotypes were diploid
(2n=2x=24 chromosomes).
Depending on the results of the morphological characterization and the chromosomal
number of local genotypes studied, it can be considered the closest to the specie
Tulipaagenensis D.C.
Family Vespidae considered as Widespread globally and belong to the order
Hymenoptera called wasps, It contains about 5000 species belong to six subfamilies.
Members of this family differ in terms of style of living and life cycle and the type of
diet. Colors overlap between the black and yellow or red, yellow or three together.
This study examined six species belong to the four genera (Vespa, Vespula, Poistes,
Delta) and three sub-families are: Sub.Fam. Vespinae, Sub.Fam. Polistinae, Sub.Fam.
Eumeninae, gathered from many different areas of the province of Latakia
environment (15 area) from altitudes ranging from sea level to a height of 1000
meters, over a period of time it extends from April through October of 2015.
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