Physiological responses of seed germination, seedling growth, mineral composition and antioxidant enzyme activity of seed pretreatment in tomato under salinity stress
Other Title(s)
استجابة الفسيولوجية لإنبات بذور البندورة، نمو الشتلات، المحتوى المعدني و نشاط مضادات الأكسدة للمعالجة الأولية تحت ظروف الإجهاد الملحي
Dissertant
Thesis advisor
al-Absi, Khalid Musa
al-Mahadin, Atif Yasin
Comitee Members
al-Makhadimah, Ibrahim Mahmud
Uways, Said Juzif
Mhawish, Usamah Isa
University
Mutah University
Faculty
Faculty of Agriculture
Department
Plant Production Department
University Country
Jordan
Degree
Master
Degree Date
2017
English Abstract
The present study was carried out to determine the effects of different seed priming treatments and irrigation water salinity on germination, vegetative growth, leaf biochemical contents and mineral composition of on ''Dafnis'' tomato seeds.
Two experiments were conducted.
In the first experiment, seeds of ''Dafnis'' tomato were exposed to six seed priming treatments (100mM NaCl, 300mM NaCl, 10% PEG, 20% PEG, 10ppm GA3, and 30ppm GA3) and unprimed (dry seeds) for 12 hours.
The results showed that seed priming with 30ppm GA3 significantly improved germination index, coefficient of velocity, plumule and radical length, seedling vigor index and seedling fresh weight.
The second pot experiment was conducted in a partially controlled greenhouse.
The seeds were primed with the previous reagents used in the first experiment.
Then, they were irrigated with 0, 150, 300 or 450mMNaCl.
The results revealed that salinity significantly reduced most vegetative growth parameters.
Chlorophyll content was significantly decreased with increasing irrigation water salinity.
Leaf proline content significantly increased when seeds where primed with 100mM NaCl and irrigated with 300mM NaCl water.
Increasing irrigation water salinity significantly increased shoot chloride concentration.
Moreover, potassium, ascorbate peroxidase activity and sodium significantly increased when the seeds were primed with PEG under low, medium and high osmotic stresses, respectively
Main Subjects
Topics
No. of Pages
84
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Theoretical background.
Chapter Two : Literature review.
Chapter Three : Design and methodology chapter.
Chapter Four : Result and discussion.
References.
American Psychological Association (APA)
al-Maayitah, Samihah Salamah. (2017). Physiological responses of seed germination, seedling growth, mineral composition and antioxidant enzyme activity of seed pretreatment in tomato under salinity stress. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-749695
Modern Language Association (MLA)
al-Maayitah, Samihah Salamah. Physiological responses of seed germination, seedling growth, mineral composition and antioxidant enzyme activity of seed pretreatment in tomato under salinity stress. (Master's theses Theses and Dissertations Master). Mutah University. (2017).
https://search.emarefa.net/detail/BIM-749695
American Medical Association (AMA)
al-Maayitah, Samihah Salamah. (2017). Physiological responses of seed germination, seedling growth, mineral composition and antioxidant enzyme activity of seed pretreatment in tomato under salinity stress. (Master's theses Theses and Dissertations Master). Mutah University, Jordan
https://search.emarefa.net/detail/BIM-749695
Language
English
Data Type
Arab Theses
Record ID
BIM-749695
