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Register a new userThe effect of saline tress on some of the physiological and morphological characteristics of Seedlings of some olive varieties
تأثير الإجهاد الملحي في بعض الصفات الفيزيولوجية و المورفولوجية لغراس بعض أصناف الزيتون
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أجري البحث على بعض أصناف الزيتون و هي الصوراني– الدان- المحزم أبو سطل– الجلط– النيبالي، من أجل مقارنة تحملها للملوحة من خلال بعض صفاتها الفيزيولوجية و المورفولوجية تحت ظروف الإجهاد الملحي (كلور الصوديوم) حيث تم استخدام الملح بتراكيز مختلفة في ماء الري، بالإضافة للشاهد (ماء عذب).
The research was conducted on some olive varieties known as Alsourani- Aldan- Mahazm Abu Satel- Alglet- Alnepali, in the aim of comparing their tolerance against the stress of salinity (sodium chloride) through some morphological and physiological traits. Different concentrations of salt as well as to the control (fresh water) were used in this experiment.
References used
Ahmed C.B., Rouina B.B ., Boukhris M . (2008). Changes in Water Relations, Photosynthetic Activity and Proline Accumulation in one- Year – Old Olive Trees ( Olea Europaea L .Cv.Chemlali ) in Response to NaCl Salinity. Acta Physiologiae
Al-Absi M., Qrunfleh K., and Abu-Sharar T.( 2002). Mechanism of Salt Tolerance of two Olive Olea Europaea L. Cultivars as Related to Electrolyte Concentration and Toxicity. Acta Horticulturae. 618: 343-346
Alaei Sh and Tafazoli E.(2012) Effects of Salinity and Plant in Olive (Olea Growth Regulators on Ions Accumulation ( Na ,K ) Europaea Cv.Roughani). Scientific Information Database (SID).page(S)123 to 131, volume 26 , number 2
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Despite being one of the reasons of production decline, salinity is still a tool
to improve production quality in some hybrids. this research was conducted at
the Faculty of Agriculture, University of Damascus during 2012 season. A salt
stress was
applied on two tomato hybrids, Bonaparte and Marmara by
increasing the value of the electrical conductivity of irrigating water from 4 to
13 ds / m, at the stage of the third true leaf to the end of growth of the two
tomato plants.
Results indicated that salt stress led to a reduction in the fruit weight of
both hybrids but it helped in improving some chemical and physical
characteristics relating to fruit quality, such as increasing the fruit content of
soluble solids in both hybrids. Salt stress did not affect the lycopene content of
fruits in Bonapart, but it was increased by 2 folds inMarmara. Some fruit color
indices (a* and b*) were greater in Bonaparte while L* indice was higher in
Marmara. However, the color indices of fruits were not affected by salinity in
both hybrids studied.
This study was conducted at Abo Jarash farm, Faculty of Agriculture,
Damascus University In order to determine the response of three local varieties
of potato (Sponta, Draja, Diamont) to salinity stress with different
concentration of NaCl solutio
n (0,50, 100, 150, 200 mM). The results indicated
that the existence of a inverse correlation between increased concentrations of
salts in the solution and the rate of plant height, leaf area, and the percentage of
leaf dry weight, and the proportion K+/ Na+., and the productivity was declined
with a proportional rate 22< 32, and 48% for the varieties of Sponta, Draja,
Diamont, respectively. Results indicated the existence of reverse relationship
between increasing salt concentration in the medium and plant height, Leaf
area, dry weight of the leaves and K+/Na+ ration in addition to the decline in the
productivity of studied varieties. The results also showed variations in the
extent of tolerance between studied varieties to salinity stress where Sponta
was the most tolerant, followed by Draja and Diamont was the less tolerant and
this was reflected in terms of higher germination and increasing the mean of
plant height, Leaf area and dry weight of plant.
The self-incompatibility problem appeared in the Khodeiry variety widely grown In
Lattakia. When this phenomenon was studied on the Khodeiry variety in two areas (Jabla
and Boqa), the results showed that this variety is self-sterile, i.e. it is not
able to pollinate
itself or the flowers of other trees of the same variety, and its fruit is very small and do not
contain seeds. The results also showed that the flower abortion percentage in the Khodeiry
variety is due to the genetic factor which varies depending on the variety. The study
investigated the self-compatibility in some olive varieties in order to use them as
pollinizers for the Khodeiry variety with the result that the Gellet, Soufrawy and Sourany
varieties are particularly compatible and have a high compatibility with the Khodeiry
variety. Based on these results, it is recommended that pollinated varieties are grown
between olive orchards to improve fruit and to increase its production.
استخدم التسميد الورقي بمستخلص الأعشاب البحرية والخميرة والحديد المخلب بالأحماض الأمينية لتحسين بعض الصفات الفيزيولوجية والإنتاجية لشجرة الدراق صنف red heaven والتخفيف من ظاهرتي إزدواجية ثمار الدراق وإصفرار نقص الحديد.
Phenols were studied in the leaves of Syrian olive varieties collected from (Harasta
and Ghouta, Damascus Countryside and Qalamun). Phenolic compounds were extracted
from the olive leaf varieties after disposal of plant pigments and fatty compounds, and
total phenols separated with solvent (methanol - water).
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