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_beng
_cEG-GICUC
_dEG-GICUC
_erda
041 0 _aeng
_beng
_bara
049 _aDeposit
082 0 4 _a633.32
092 _a633.32
_221
097 _aM.Sc
099 _aCai01.07.01.M.Sc.2025.Ay.E
100 0 _aAya Lotfy Amin Desoky,
_epreparation.
245 1 0 _aEffect of some mutagenesis on performance and variation of berseem genotypes /
_cby Aya Lotfy Amin Desoky ; Supervisors Dr. Ahmed Monged Soliman, Dr. Adel Abdel-monem Hoballah.
246 1 5 _aتأثير بعض المطفرات على أداء وتباين أصناف من البرسيم المصري
264 0 _c2025.
300 _a117 pages :
_billustrations ;
_c25 cm. +
_eCD.
336 _atext
_2rda content
337 _aUnmediated
_2rdamedia
338 _avolume
_2rdacarrier
502 _aThesis (M.Sc)-Cairo University, 2025.
504 _aBibliography: pages 109-117.
520 3 _aThe results of this study can be summarized as follows: First experiment: the interaction between gamma radiation doses and the cultivars showed, in the first generation (M1) significant differences in the traits of plant height, number of leaves per plant, protein percentage and fiber percentage. The highest value of plant height (87.6 cm) was for the Helaly cultivar at 15 Kr, followed by the Khadrawy cultivar (87.1 cm) at 45 Kr in the 4th cut, and the highest value of the number of leaves (13.6) was for the Helaly cultivar in the control treatment, followed by the Hatour cultivar (12.9) at the dose of 30 Kr in the 3 rd cut. the interaction between gamma radiation doses and cultivars, in the second generation (M 2), showed significant differences in plant height, number of leaves per plant, fresh yield, protein percentage, and fiber percentage. The highest values for plant height (85.1 cm) were recorded for the Khadrawy cultivar at the dose of 30 Kr, followed by the Hatour cultivar (82.4 cm) at 15 Kr in the 1st cut. The highest values for the number of leaves per plant were for the Helaly cultivar (18.0) in the control treatment, which was significantly higher than all doses and cultivars in the 1st cut as well. The highest values for fresh yield (t. h-1) were recorded in the 4th cut for the Hatour cultivar (13.5) in the control treatment, followed by the same cultivar (13.1) at the dose of 15 Kr, then the Khadrawy cultivar (12.4) at 45 Kr. second experiment :the study showed, in general, that the significant effects of the interaction between sodium azide concentrations and varieties on the studied traits differs from the first generation to the second generation and from one cut to another for the same generation and the same trait. the interaction between sodium azide concentrations and cultivars, in the first generation (M1), indicated that significant differences for most of the studied traits were in the fourth cut, for plant height, number of branches, number of leaves per plant, ratio of leaves to stems (fresh and dry), and protein percent. The highest values in the fourth cut for plant height were for the Khadrawy cultivar (97.2, 96.6 cm) at concentrations of 2000 and 1000 ppm, followed by Hatour (97.5 cm) at 3000 ppm. The highest values for the number of branches (71.3) were for the Helaly cultivar at 4000 ppm. The highest values for the number of leaves per plant (28.4) were recorded for the Hatour cultivar at 4000 ppm, followed by the Khadrawy cultivar (27.8, 28.2) at 3000 and 1000 ppm. While the interaction between sodium azide concentrations and cultivars showed, in the second generation (M2), significant differences in the traits of number of branches in the 2nd and 3rd cuts, number of leaves per plant in the 1st and 3rd cuts, protein percent in all cuts, and fiber percent in the 1st , 2nd , and 4th cuts. The highest values for the number of branches (53.3) were recorded for the Helaly cultivar at 1000 ppm in the 2nd cut, and for the Khadrawy cultivar (48.7) at 2000 ppm in the 3rd cut. It is worth noting that the previous results of the interaction effect between the studied varieties and gamma ray doses, or the interaction effect between the varieties and sodium azide concentrations show that the highest significant values recorded in the first and second generations were for the Helaly and Hatour varieties, especially in the fourth (last) cut, after which the seeds are taken for the next generation, which can be focused on in future studies as determinants for selecting the available breeding materials from the two experiments in the third generation.
520 3 _aأجريت تجربتان حقليتان بمحطة التجارب والبحوث بكلية الزراعة جامعة القاهرة بالجيزة لاستكشاف تأثير ثلاث جرعات من أشعة جاما وهى 15 ،30 45 كيلو راد (التجربة الأولى) وخمسة تركيزات من أزيد الصوديوم؛( 0-1000-2000-3000-4000 جزء في المليون (التجربة الثانية) بشكل منفصل على إنتاجية وتباين بعض أصناف البرسيم المصري خلال موسمي 2020/2021 (M1) و2021/2022 (M2). أظهرت النتائج أن المعاملة بالإشعاع بجرعة 45 كيلو راد ، في الجيل M1، أدى إلى زيادة محصول العلف الاخضر فى كل من الحشة الأولى والثالثة والرابعة ولكن بشكل غير معنوى مقارنة بمعاملة المقارنة (بدون اشعاع) أو الجرعات الأخرى في نفس الحشات. في الجيل الثاني (M2)، كان هناك انخفاض كبير في المحصول عند المعاملة بالجرعات الأعلى مقارنة بمعاملة الكنترول للمحصول الاخضر عند الحشة الأولى والرابعة، في حين أن الانخفاض فى محصول الحشة الثانية والمحصول الاخضر الكلى كان غير معنوى. أظهرت نتائج الدراسة عدم وجود فروق معنوية فى إنتاج العلف الجاف لنباتات البرسيم المعاملة بجرعات من أشعة جاما في الأجيال M1 و M2.
530 _aIssues also as CD.
546 _aText in English and abstract in Arabic & English.
650 0 _aBerseem
650 0 _aالبرسيم
653 1 _aEgyption clover
_aMutation
_aGamma rays
_aSoduim azide
_ahertability
700 0 _aAhmed Monged Soliman
_ethesis advisor.
700 0 _aAdel Abdel-monem Hoballah
_ethesis advisor.
900 _b01-01-2025
_cAhmed Monged Soliman
_cAdel Abdel-monem Hoballah
_UCairo University
_FFaculty of Agriculture
_DDepartment of Agronomy
905 _aShimaa
_eEman Ghareb
942 _2ddc
_cTH
_e21
_n0
999 _c176065