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040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.07.12.M.Sc.2019.No.E
100 0 _aNoha Khaled Esmaeil Elshahawy
245 1 0 _aEffect of gamma irradiation, Gibberellic acid and boiling water on seed germination and seedlings growth of Koelreuteria Paniculata anddelonix regia /
_cNoha Khaled Esmaeil Elshahawy ; Supervised Hamdy Mohamed Ali Elbagory , Mohamed Mousa Hussein , Magdy Mohamed Abdelbaky
246 1 5 _aتأثير التشعيع باشعه جاما وحمض الجبريليك والماء المغلى على {uئإ٨٧}نبات بذور ونمو شتلات الكلوروتاريا والبوانسيانا
260 _aCairo :
_bNoha Khaled Esmaeil Elshahawy ,
_c2019
300 _a165 P. :
_bcharts ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University -Faculty of Agriculture - Department of Ornamental Horticulture
520 _aKoelreuteria paniculata and Delonix regia is propagated by seeds. However, natural germination is delayed because of morphological dormancy and physiological dormancy in seed coat and seed embryo. In this paper, the different methods for breaking seed dormancy were investigated. The treatments included different doses of gamma irradiation (0.0, 100, 150 and 200 Gy), gibberellic acid (0.0, 50, 100, 200 and 400 ppm) and boiling water. Data were recorded on germination including; germination percentage, germination velocity, germination capacity, germination period and germination rate index. Furthermore, data on seedling growth after germination were recorded including plant height, number of main branches, shoot fresh and dry weights and root length. The chemical components (total carbohydrates, Chlorophyll-a, -b, total carotenoids, total soluble indoles and total soluble phenols) also were determined. The obtained results revealed that, there is a significant difference among the various methods used in breaking dormancy in seeds of Koelreuteria paniculata Laxmtree. Gamma irradiation and gibberellic acid stimulate germination and seedlings growth parameter and chemical components of Koelreuteria paniculata. Gamma irrradiation at 150 Gy was the optimum dose for improving the seedling growth, germination and chemical components. Moreover, gibberellic acid at 100 ppm was considered as suitable for improving germination parameter, seedling growth parameter and chemical component compared to control
530 _aIssued also as CD
653 4 _aDelonix regia
653 4 _aGermination
653 4 _aKoelreuteria paniculata
700 0 _aHamdy Mohamed Ali Elbagory ,
_eSupervisor
700 0 _aMagdy Mohamed Abdelbaky ,
_eSupervisor
700 0 _aMohamed Mousa Hussein ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c73392
_d73392