نفذ البحث في محطة البحوث العلمية الزراعية في إزرع التابعة للهيئة العامة للبحوث العلمية
الزراعية بهدف تقييم أداء ستة أصناف من القمح القاسي لتحمل الإجهاد المائي في مرحلة الإشطاء في
2011 من خلال دراسة بعض الصفات الشكلية و عناصر الغلة الحبية، صممت – الموسم الزراعي 2010
التجربة وفق تصميم القطاعات العشوائية الكاملة، أظهرت نتائج التحليل الإحصائي وجود تباين وراثي
مابين الأصناف في تحمل الإجهاد المائي، سبب الإجهاد المائي تراجعاً في جميع الصفات المدروسة، فقد
تراجع متوسط الغلة الحبية بنسبة 31.7 % و كان عدد السنابل/ م 2 من أكثر مكونات الغلة الحبية تأثراً
بالإجهاد المائي حيث تراجع متوسط عدد السنابل/ م 2 بنسبة 29.1 فيما تراجع متوسط الوزن البيولوجي
( 191 ) فيما أظهر الصنفان بحوث 7 بنسبة 24.2 %، أظهر الصنف حوراني أعلى قيمة بعدد السنابل/م 2
، شام 5 أعلى قيمة لعدد الحبوب بالسنبلة ( 34.1 )، و الصنف حوراني أعلى وزن للألف حبة ( 27.1)
و أعطى الصنف شام 5 أعلى غلة حبية في المتر المربع ( 239.4 غ)، فيما سجل الصنف بحوث 7 أدنى
قيمة للغلة الحبية ( 182.8 غ) تحت ظروف الإجهاد المائي.
This research was conducted at Izraa research station of The General
Commission for Scientific Agricultural Research during the growing season
2010/2011 to study the performance of six durum wheat varieties at early
growth stage under water deficit stress. The experiment was designed using
randomized complete block design with three replication. The statistical
analysis results of the experiment clearly showed genetic variations among
cultivars under water stress. Drought stress caused a depression in all studied
traits. Mean yield decreased in average 31.7 %. The number of spiks/ m2 was
the most trait affected by drought stress, It decreased in average 29.1% while
biological yield decreased in average 24.26%. It was observed that the number
of spikes per m2 was the highest in the variety Hourani (191) and the highest
number of grain per spike (34.1) whereas the variety Bohouth7 and the variety
hourani recorded the highest thousand grain weight (40.5 g). The statistical
analysis results showed that the variety Cha5 a achieved the highest grain yield
per m2 (239.4 g), whereas, the variety Bohouth7 recorded the lowest grain yield
per m2 (182.8 g), under water deficit stress conditions.
References used
Amjad Ali, M, K. Jabran, SI. Awan, A. Abas, Z. Ehsanullah and M. Tuba. 2011. Moro-phsiologicaldiversity and its implications for improving drought tolerance in grain sorghum at different growth stages, Aust J Crop Sci 5(3):308 – 317
Blum, A. 2005. Mitigation of drought stress by crop management. Httpi // www. Plant stress. Com /articles / drought-m7 drought – m. htm
Bressan, R. A., D. E. Nelson, N. M. Iraki, P. C. Larson, N. K. Singh, P. M. Hasegawa and N. C. Carpita, 1990. Reduced cell expansion in cell walls of plant cells adapted NaCl, environmental injury to plantes CF. Katter maned. J, Academic Press, San Diego, P. 137
Datta, J. K., T. Mondal, A. Banerjee and N. K. Mondal. 2011. Assessment of drought tolerance of selected wheat cultivars under laboratory condition. J Agri. Technol, 7: 383-393
This study was carried out at the Faculty of Agriculture, Damascus
University, and ACSAD during the year 2001 – 2002 in order to assess the
genetic variability of twenty wheat genotypes for osmotic stress tolerance by
using PEG-6000 as a water str
This research was conducted at the farm of Abu-Jarash, Faculty of
Agriculture, Damascus University. The aim of this research was to
evaluate the performance and productivity of 9 bread wheat (T.
.aestivum )and 3 durum wheat T. durum.
The experiment was laid out in a Random Complete Block design
(RCPD) with three replication.
This research was conducted in Abo Jarash farm (College of Agriculture,
Damascus University) in 2009/2010. Fifteen strains of durum wheat contrived
by ACSAD and ICARDA were studied, the productivity and its main
components were compared with four
The study was conducted on six varieties of cucumber: Napleon, Ampres,
Sendian, Prence, Samara and Baladi. To study the responses of these varieties
to drought stress, on the seed germination and seedling growth under different
Polyethylen glycol
A laboratory experiment was conducted during 2002-003. The purpose was
to develop an effective and rapid screening tool to assess the genetic variability
for the response of some local barley varieties to polyethylene glycol- induced
osmotic stres