خيارات البحث
النتائج 1 - 8 من 8
Wheat yield and antioxidant enzymes relationship under different soil water content
2010
Abdel-Kader, M.A. | Nour El-Din, N.A. | Fawzy, M.H. | Bechini, L.
The objectives of this study were to examine the relationship between wheat yield cultivars (Sakha 93 and Giza 168) and antioxidant enzymes such as catalase (CAT), superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX) and phenylalanine ammonia-lyase (PAL) activities under different soil water content i.e. low, moderate and high content by Irrination at 806/6 ETo (1280m'/fed.), by, 100% ETo (1600m'/fed.) and120% ETo (1920m'/fed.), respectively. Two lysimeter experiments were carried out in two successive seasons i.e. 2006/2007 and 2007/2008 to estimate wheat yield and one experiment in plastic bags carried out of the greenhouse to determine the antioxidant enzymes of 28 days wheat plant under three different soil water content i.e. providIng wheat seedlings with aforementioned treatment. Exposing wheat cuitivars i.e. Giza 186 or Sakha 93 to water stress by Irrigation at 80% ETo (1280 m3/fad.) exerted an increase in CAT, SOD, POD, APX and PAL over those irrigated at 100% ETo (1600 m'/fad.) or at 120% ETo (1920 m'/fad.), but the previous enzyme activities in the tissue of Saka.93 surpassed of that of Giza 168 cuitivar. spike weight and weight of 100 grain/plant of Sakha 93 cuitivar overcome that of Giza 168 at low soil moisture content (80% ETo), whereas opposite results were obtained at high and moderate water content (120% and 100% ETo) in the first growing season (2006/2007) and spike weight/plant in second growing season (2007/2008). There was a proportional relationship between increasing soil moisture content and grain yield/plant but the difference between moderate water content 100% ETo (1600 m'/fed.) and high water content 120% ETo (1920 m3/fed.) was not significant. Providing 28 days wheat plant with low water content, decreased wheat yield/plant and its attributes comparing with moderate water content for the two studied cuitivars. The current study indicates that Sakha 93 cultivar was the most tolerant cuitivar compared with Giza 168.
اظهر المزيد [+] اقل [-]hree proposed parameters compared to six statistical ones for determining yield stability of some wheat varieties
2001
Sharaan, A.N. | Ghallab, K.H. (Cairo Univ., Fayoum (Egypt). Faculty of Agriculture)
nheritance of grain fill parameters in wheat under heat-stressful and non-stressful environments
2000
Saadalla, M.M. (Alexandria Univ., Damanhour (Egypt). Faculty of Agriculture)Ghandorah, M.O.
Effect of farming operations on the duration of laser technology precision land leveling for successive seasons
2002
El-Sahrigi, A.F. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture) | El-Khatib, S.I. | El-Behery, A.A.
Effect of Amcotone and Atonik with some additives on nitrogen accumulation and productivity of wheat, Triticum aestivum L. plants
2002
Farahat, M.M. (National Research Center, Cairo (Egypt). Botany Dept.)
Effect of foliar application with indol acetic acid and gibberellic acid and the interaction between them on growth and some physiological constituents of wheat plant grown under salinity conditions
Gherroucha, H. | Baka, M.Constantine Univ., Mentouri (Algeria). Faculty of Science | Moharid, S.A.
Effect of seeding rates and nitrogen fertilization on yield and its attributs of some newly released wheat cultivars
2001
Abo-Shataia, A.M. | Abdel-Gawad, A.A. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture) | Abdel-Haleem, A.K. | Habbasha, S.F.
Nature of gene action in bread wheat crosses under normal and salinity stress conditions
2001
Khattab, S.A.M. | Gomaa, M.A.M. (National Research Center, Cairo (Egypt). Genetics and Cytology Dept.) | Afiah, S.A.N.