000			02623cab a2200313Ia 45 0
001			u210930
003			SIRSI
008			151115s2013 ua ss b eng d
040			_aEAL
041			_aeng _bara
090			_aART ARJSU V13 No1 14
100	1		_aKotb, M. A.
240	1	0	_aAgricultural research journal, Suez Canal University, 2013 v.13(1) _h[electronic resource].
245	1	0	_aFoliar application of ascorbic acid improved drought tolerance and productivity of wheat (Triticum aestivum L.) _h[electronic resource].
246	1	5	_aتحسين مقاومة القمح وانتاجيته عن طريق الرش بحمض الاسكوربيك.
300			_ap.1-16
504			_aIncludes references.
520			_aLittle is known about ascorbic acid (AsA) role in counteracting the adverse effects of water stress on wheat growth and productivity under field conditions. Two field experiments were conducted in a sandy soil in the Experimental Farm, Faculty of Agriculture, Ismailia, Egypt during 2011/12 and 2012/13 seasons. The work aimed to study the effect of three levels of AsA (0.0, 100 and 200 ppm) on the response of wheat (Triticum asetivum, L. cv. Sakha 94) to three surface irrigation rates (1.00. 0.80 and 0.60 of the estimated crop evapotranspiration, which represented 4260, 3408 and 25 56 m3 /ha, respectively. Results indicated that, drought caused a reduction in each of leaf area index, total chlorophyll, relative water content, grain and straw yields. However, water deficit increased lipid peroxidation (as malondialdehyde, MDA) and protein oxidation as well as induced the activities of some antioxidative enzymes, superoxide dismutase (SOD), ascorbate peroxidase (APX) and catalase (CAT). The activity of SOD, APX and CAT was increased by about 74-108%,44-57% and 107-156%, respectively in flag leaf compared to the well watered wheats. Application of 100 -200 ppm of AsA significantly alleviated the oxidative stress damage of drought, reflected by improving above parameters as well as decreasing MDA and protein oxidation, but decreased activity of antioxidative enzymes by about 10-20 %.
546			_aSummary in Arabic.
650		0	_aWheat _xDrought tolerance.
650		0	_aWheat _xProduction.
650		0	_aAgricultural chemicals _xFoliar application.
650		0	_aVitamin C _xPhysiological effect.
650		3	_aTriticum aestivum
700	1		_aElhamahmy, M. A. M.
773	0		_tAgricultural Research Journal, Suez Canal University. _g2013 v.13(1) _x1687-1049 _7nnas _wu158531
856	4	0	_uhttp://nile.enal.sci.eg/EALE/2013/ARJSU/1313/1/4/1.pdf _zFull Text Article
596			_a1
942			_cAR _2lcc
999			_c60102 _d60102