تأثير مضاد النتح و الإجهاد المائي في بعض المؤشرات الفيزيولوجية للذرة الصفراء المزروعة

الملخص EN

The experiment carried out during the seasons 2010-2011 in the fields of Maskana in Aleppo/Syria, 80 kilometers east of the city of Aleppo to study the effect of anti-transpiration in the physiological parameters of the two cultivars of maize under water stress conditions.

Ghouta 82 and Basel1are used, and anti-transpiration under the trade name (Biobest) with three treatments of water stress are: (55-70-85%) of the field capacity.

The results analyze statistically by using spilt-split polt with R(B1) design with three replications to estimate some physiological traits: Relative water content, proline content, chlorophyll content, stomata conductance and productivity, the stress Led to a significant decline in the values of each of relative water content: (31.7, 16.5%), stomata conductance (21.7, 7.7μmol.m-2 .S-1), chlorophyll content (18.9, 22.1 mg / g), while the proline content: (3.2, 1.5 mg / g), and the efficiency of transpiration: (2.1, 3.22 μ mol CO2/ μ mol H2O) for two types Ghouta 82 and Basil 1 Respectively, spray of anti transpiration softened the impact of water stress for all transactions field capacity studied and improved the values, that's what show to compare the results Category Ghouta 82 in water stress conditions (treatment 55% of field capacity) between the treatment of the control and the treatment of anti-transpiration, has reached the relative water content: (64,58.3%), stomata conductance (85,60.4μmol.m-2 .S-1), chlorophyll content (4.7,4.6mg / g), while the all of proline content: (16.45,14.3mg / g), and the efficiency of transpiration: (9.56,6.9μ mol CO2/ μ mol H2O) for two types Ghouta 82 and Basil 1 Respectively, Also took a class Basil 1 results largely the same behavior, but that product Ghota 82 outweigh Basil 1 in all the indicators studied.