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Register a new userEvaluation of the performance of some wheat varieties under drought stress in tillering stage
تقييم أداء أصناف من القمح القاسي المعرضة للإجهاد المائي في مرحلة الإشطاء
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Added by
Damascus University ورقة بحثية
Publication date
2015
fields
Agricultural Engineering
and research's language is
العربية
Created by
zeina alrostum
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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
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(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
certified varieties of durum wheat in
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between the strains in most of the studied traits, and the strains derived from
ACSAD were featured in the performance under the experiment condition.
And those strains were characterized by the early heading, and maturity
comparing with the wildly cultivated varieties in Syria and some of them were
super or in grain production as Acsad 1311, Acsad 1327, Acsad 357(3648.36,
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The study was conducted on six varieties of cucumber: Napleon, Ampres,
Sendian, Prence, Samara and Baladi. To study the responses of these varieties
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Polyethylen glycol
concentrations (0 control, 10 mM, 20 mM and 40 mM PEG).
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stress. The varieties Ampres, Prence and samara showed more resistance to
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A laboratory experiment was conducted during 2002-003. The purpose was
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for the response of some local barley varieties to polyethylene glycol- induced
osmotic stres
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of pre-exposure of barley seedlings to sub-lethal (induction) levels of osmotic
stress. This might enhance the capacity of seedlings to tolerate the lethal levels
of stress.
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