alaa.said

Dr Alaa A. Said

Assistant Professor - Prof. asst.

Faculty of agriculture

Address: Nacer city, sohag

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2020 | Keywords Bread wheat (T. aestivum L.), ,
Grain Yield Stability of New Bread Wheat Genotypes (Triticum aestivum L.) under Normal and Heat Stress Conditions
FORTY-TWO bread wheat genotypes (Triticum aestivum L.) were evaluated in eight environments in Egypt: two locations and two planting dates during the two 2016-2017 and 2017-2018 growing seasons. The objectives of this study were to estimate grain yield, number of spikes plant-1, 1000-kernel weight and plant height of these 42 bread wheat genotypes under different environments and to determine their ... Read more

2020 | Keywords Stability models, Performance,
A comparison of bread wheat genotypes in various environments using different stability models
Twenty five bread wheat genotypes were tested under eight environments (2 growing seasons×4 water stresses) to study stability and adaptability for physiological and agronomic traits. Analysis of variance showed highly significant variations among all tested genotypes for all studied traits; chlorophyll content, canopy temperature, specific leaf area, spike length, no. of spike/plant, 1000- kernel weight and grain yield. The results ... Read more

2020 | Keywords Magnetic water, saline water, ,
The effect of saline water magnetization on physiological and agronomic traits of some bread wheat genotypes
The present work relates to estimate the effect of magnetically-treated saline water on physiological and agronomic traits of 22 bread wheat genotypes and to determine the changes in soil properties. Replicated pot experiments involving potable water, saline water (2500 and 5000 ppm) and magnetically treated (2500 and 5000 ppm saline water) were conducted in greenhouse during 2017/2018 and 2018/2019 winter ... Read more

2018 | Keywords QTL mapping, Sorghum biocolor,
Mapping Quantitative Trait Loci Associated with Yield and its Related Traits in Sorghum bicolor
YIELD and its related traits; heading date, hundred kernel weight and kernels number as well as harvest index and biological yield are complex traits that require the concerted action of many genes and are affected by environmental cues. To genetically dissect those traits, 140 recombinant inbred lines (RILs) genotyped with 120 DArT and SSR markers were grown under field conditions ... Read more

2015 | Keywords Barley QTL Salinity,
Association Mapping For Salinity Tolerance Related Traits in a Structured Barley Population.
ASTRUCTURED barley population of 103 wild barley accessionand 19 spring barley cultivars was used to identify quantitativetrait loci (QTLs) for salt tolerance traits by means of an associationmapping approach using 660 DArT markers. In this investigationbarley accession and spring barley cultivars were employed in a twoyeargreenhouse project having a completely randomized designinvolving four irrigation water treatments having different salinitiesand twice ... Read more

Identification of ISSR  and RAPD  markers linked to yield traits  in bread wheat under normal and drought conditions
Genetic variability and identification of some molecular markers were studied in twenty promising lines of wheat using agronomic traits, ISSR (inter simple sequences repeats) and RAPD (random amplified polymorphic DNA) markers. Significant variation was evidenced in all agronomic traits. The lines proved to be superior to the check cultivar Sahel1 in yield and its component traits. Lines L2, L7 and ... Read more

EFFECT OF SOME COMMERCIAL BIO-AGENTS ON YIELD AND DAMPING-OFF DISEASE OF WHEAT LINES (Triticum aestivum vulgair L.)
The current study was conducted to assess the possibility of using two bioagents (BAs), Trichoderma harzianum T39 (Trichodex) and Bacillus subtilis (MBI 600) tested at 1, 3 and 5% concentration to control damping-off disease and also their ability to promote yield of wheat lines under field conditions. Seed inoculation with two BAs protected wheat seedlings and highly promoted seed germination. ... Read more

2015 | Keywords ISSR markers, Agronomic traits,
ISSR Markers-Trait Associations and Stability Analysis in Bread Wheat Varieties
The genetic variability and yield stability are complex traits with large environmental components that are utilized for breeding of improved plant performance under drought conditions. In order to better understand the relationship among genotype, trait components, and environment, marker-trait associations in 20 wheat varieties using phenotypic and ISSR (Inter-Simple Sequence Repeat) markers under drought conditions were examined. The combined analysis ... Read more

2015 | Keywords wheat Water deficit, Molecular,
SRAP Markers Associated with Water Use Efficiency and Some Agronomic Traits in Wheat under Different Irrigation Regimes
IFTY bread wheat lines were evaluated for drought tolerance and compared to six local cultivars under three water regimes (Well-watered = 0.8 Evapotranspiration (ETp), Mild drought stress = 0.6 ETp and severe drought stress = 0.4 ETp.). Eight agronomic traits were evaluated, i.e. days to heading, number of spikes/plant, 100-kernel weight (g), relative water content (%), chlorophyll concentration (μg cm-2), ... Read more

2015 | Keywords wheat, Heat stress, SRAP,
ASSESSMENT OF HEAT TOLERANCE  IN BREAD WHEAT USING SOME AGRONOMIC TRAITS AND SRAP MARKERS
_FIFTY BREAD WHEAT LINES WERE EVALUATED FOR HEAT TOLERANCE AND COMPARED TO SOME LOCAL CULTIVARS UNDER THREE SOWING DATES (NOVEMBER 25TH, DECEMBER 15TH AND JANUARY 5TH). FOUR AGRONOMIC TRAITS WERE EVALUATED, I.E. NO. OF SPIKES PER PLANT, GRAIN YIELD PER PLANT, 100-KERNEL WEIGHT AND HARVEST INDEX UNDER NORMAL AND STRESS CONDITIONS. ANALYSIS OF VARIANCE SHOWED HIGHLY SIGNIFICANT VARIATIONS AMONG THE ... Read more