MARC details
| 000 -LEADER |
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| fixed length control field |
06820namaa22004451i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - أخر تعامل مع التسجيلة |
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| control field |
20251021130436.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
251013s2025 ua a|||frm||| 000 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Original cataloguing agency |
EG-GICUC |
| Language of cataloging |
eng |
| Transcribing agency |
EG-GICUC |
| Modifying agency |
EG-GICUC |
| Description conventions |
rda |
| 041 0# - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| Language code of summary or abstract |
eng |
| -- |
ara |
| 049 ## - Acquisition Source |
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| Acquisition Source |
Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
633.33 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) |
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| Classification number |
633.33 |
| Edition number |
21 |
| 097 ## - Degree |
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| Degree |
Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) |
|---|
| Local Call Number |
Cai01.07.14.Ph.D.2025.Ta.E |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
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| Authority record control number or standard number |
Taha Adly Ahmed Ibrahim, |
| Preparation |
preparation. |
| 245 10 - TITLE STATEMENT |
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| Title |
Evaluation of some cowpea accessions for environmental stress tolerance and studies on the nature and genetics of tolerance / |
| Statement of responsibility, etc. |
by Taha Adly Ahmed Ibrahim ; Supervisors Dr. Ahmed Abdel-Moneim Hassan, Dr. Khaled El-Sayed Ali Abdel-Ati, Dr. Khaled Adly Mohamed Khaled. |
| 246 15 - VARYING FORM OF TITLE |
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| Title proper/short title |
تقييم بعض سلالات اللوبيا لتحمل الإجهاد البيئى ودراسات على طبيعة ووراثة التحمل |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
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| Date of production, publication, distribution, manufacture, or copyright notice |
2025. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
171 pages : |
| Other physical details |
illustrations ; |
| Dimensions |
25 cm. + |
| Accompanying material |
CD. |
| 336 ## - CONTENT TYPE |
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| Content type term |
text |
| Source |
rda content |
| 337 ## - MEDIA TYPE |
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| Media type term |
Unmediated |
| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| Carrier type term |
volume |
| Source |
rdacarrier |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Ph.D)-Cairo University, 2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Bibliography: pages 152-171. |
| 520 #3 - SUMMARY, ETC. |
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| Summary, etc. |
The present study was conducted at the Agricultural Experiment Station of the Faculty of Agriculture, Cairo University, Giza, Egypt, during 2021&2023 under open field conditions. Seventy cowpea accessions were evaluated for drought tolerance based on their characters, especially drought tolerance. In second screening, based on results and percentage change of various characters determined in the first screening, 20 genotypes were selected and evaluated. Six genotypes were selected based on first and second vegetative stage screening and were used to study drought tolerance based on physiological, anatomical and molecular characters. Seventy-five genotypes of cowpea were evaluated for heat tolerance. Ten genotypes were selected based on first vegetative stage screening and were used to study heat tolerance based on physiological and molecular characters. Nine genotypes were evaluated for salt tolerance. Results indicated that accessions TVU-14997, TVU-15304 and TVU-15306 recorded the highest drought tolerance based on their high levels of each of leaf greenness, average leaf area, photosynthesis efficiency, antioxidant capacity, total phenols, abscisic acid and proline contents and catalase and peroxidase activity, resulting in increasing seed yield per plant compared with other accessions. Genotypes TVU-14997 and TVU-15306 showed unique responses, highlighting genetic diversity in drought tolerance. Under drought condition, accession TVU-15306 had the highest value for thickness of the midvein, spongy tissue, dimension of vascular bundle and mean vessels diameter. Partial dominance was detected for each of low leaf greenness, low root fresh weight, high shoot fresh and dry weight, and root dry weight. Accessions TVU-17054, TVU-17064 and TVU-17137 recorded the highest heat stress tolerance based on their high levels of each of leaf greenness which increased photosynthesis efficiency, number of main branches, shoot dry weight, root dry weight, antioxidant capacity, total phenols, abscisic acid and proline contents and catalase and peroxidase activity. They were also characterized by low stomata conductance and transpiration rate that maintained water content in leaves resulting in increasing seed yield per plant compared with other accessions. For heat tolerance A 300 bp fragment (Primer 1) was unique to the most heat-tolerant genotype (TVU-17137), while a 395 bp fragment (Primer 2) was exclusive to TVU-17096, which also exhibited relatively early flowering. Partial dominance was detected for each of high leaf greenness and high root dry weight in cross TVU-17137 × TVU-15303, low shoot fresh and dry weight and root fresh and dry weight in cross TVU-17064 × TVU-15303. Accessions TVU-15306, TVU-17064 and TVU-17137<br/>recorded high salt stress tolerance based on their high values of each of average leaf area, leaf greenness which increased photosynthesis efficiency, and high levels of antioxidant capacity, total phenols, abscisic acid and proline contents and catalase and peroxidase activity. They were also characterized by low stomata conductance and transpiration rate. |
| 520 #3 - SUMMARY, ETC. |
|---|
| Summary, etc. |
استهدفت الدراسة تقييم 70 سلالة وصنفا من اللوبيا لتحمل الجفاف. في التقييم الثاني بناءً على نتائج الصفات المختلفة التي تم قياسها في التقييم الأول والنسبة المئوية لمعدل الاختلاف، تم انتخاب 20 سلالة من اللوبيا وتقيمها، وتم أنتخاب 6 سلالات بناءً على التقييم فى مرحلة النموالخضرى الأول والثاني، وتم تقيمها لدراسة تحمل الجفاف على أساس فسيولوجي وتشريحي وجزيئي. تم تقييم 75 سلالة من اللوبيا لتحمل الحرارة. تم أنتخاب 10 سلالات بناءً على التقييم الأول فى مرحلة النمو الخضرى. تم تقييم 10 سلالات لتحمل الحرارة العالية على أساس فسيولوجي وجزيئي. تم تقييم 9 سلالات لتحمل الملوحة. أظهر السلالتان TVU-14997، و TVU-15306 أستجابة تشير إلى الاختلاف الوراثي فى تحمل الجفاف. سجلت السلالات TVU-17054 و TVU-17064 و TVU-17137 أعلى درجة تحمل للإجهاد الحراري بناءً على المستويات العالية لكل من أخضرارالأوراق مما ادى الى زيادة كفاءة التمثيل الضوئي، وعدد الفروع الرئيسية، والوزن الجاف للساق، والوزن الجاف للجذر، ومضادات الأكسدة، والمحتوى الفينولى، ومحتويات حمض الأبسيسك والبرولين ونشاط الكتاليز والبيروكسديز. |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE |
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| Issues CD |
Issues also as CD. |
| 546 ## - LANGUAGE NOTE |
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| Text Language |
Text in English and abstract in Arabic & English. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Cowpea |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
اللوبيا |
| 653 #1 - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
Cowpea |
| -- |
drought tolerance |
| -- |
heat tolerance, |
| -- |
salt tolerance |
| -- |
dominance |
| -- |
number of genes |
| -- |
heritability |
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Ahmed Abdel-Moneim Hassan |
| Relator term |
thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Khaled El-Sayed Ali Abdel-Ati |
| Relator term |
thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Khaled Adly Mohamed Khaled |
| Relator term |
thesis advisor. |
| 900 ## - Thesis Information |
|---|
| Grant date |
01-01-2025 |
| Supervisory body |
Ahmed Abdel-Moneim Hassan |
| -- |
Khaled El-Sayed Ali Abdel-Ati |
| -- |
Khaled Adly Mohamed Khaled |
| Universities |
Cairo University |
| Faculties |
Faculty of Agriculture |
| Department |
Department of Vegetable Crops |
| 905 ## - Cataloger and Reviser Names |
|---|
| Cataloger Name |
Shimaa |
| Reviser Names |
Eman Ghareb |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Thesis |
| Edition |
21 |
| Suppress in OPAC |
No |