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003 EG-GiCUC
008 181101s2018 ua do f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.07.01.M.Sc.2018.Ma.T
100 0 _aMai Moghazi Abulfetouh Elmoghazi
245 1 0 _aTolerance of some quinoa genotypes to water stress /
_cMai Moghazi Abulfetouh Elmoghazi ; Supervised Ahmed Medhat Mohamed Alnaggar , Rabia Mohamed Abdelsalam , Ayman Ebrhim Elsayed Badran
246 1 5 _aتحمل بعض التراكيب الوراثية من الكينوا للإجهاد المائى
260 _aCairo :
_bMai Moghazi Abulfetouh Elmoghazi ,
_c2018
300 _a182 P. :
_bcharts , photographs ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Agronomy
520 _aQuinoa (chenopodium quinoa Willd.), a pseudocereal crop has recently gained worldwide attention because of its ability to grow in various stress conditions like soil salinity, drought, etc. The objectives were: (1) studying the variability among quinoa genotypes for different traits under different water stress environments, (2) analyzing correlations, heritability and selection gain for studied traits and (3) characterizing quinoa genotypes using ISSR markers. Field experiments were carried out in two seasons at new salhiya (sandy soil), Sharqiya governorate and laboratorial work was carried out at laboratories of desert research center, Cairo. A split plot design with 5 replications was used, where 3 irrigation regimes (achieving 95, 65 and 35% FC) were allotted to main plots and 5 quinoa genotypes to sub plots. Data indicated that irrigation regime and quinoa genotype had significant effects on all studied traits. The quinoa variety CICA-17 proved to be the highest yielder under severe water stress (35% FC) and the most drought tolerant, followed by CO-407 and Chipaya. Water stress caused significant increases in root length and water use efficiency (WUE), and significant reductions in the rest of studied traits. Results on thickness of leaf, upper and lower epidermis, palisade and spongy layers and amino acid results concluded that variety CICA-17 is drought tolerant. The best secondary traits for high seed yield, drought tolerance and high WUE of quinoa were inflorescence traits, root length, seed yield/plant and /fed, since they showed high correlation coefficient (r), high heritability (h2b) and high genetic advance (GA) estimates
530 _aIssued also as CD
653 4 _aDrought tolerance index
653 4 _aQuinoa
653 4 _aWater use efficiency
700 0 _aAhmed Medhat Mohamed Alnaggar ,
_eSupervisor
700 0 _aAyman Ebrhim Elsayed Badran ,
_eSupervisor
700 0 _aRabia Mohamed Abdelsalam ,
_eSupervisor
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c68296
_d68296