Search or add a thesis

Advanced Search (Beta)
Home > Induction of Salt Tolerance in Wheat Triticum Aestivum L. . Through Exogenous Appliction of Polyhydroxy Fullerence Nanoparticles

Induction of Salt Tolerance in Wheat Triticum Aestivum L. . Through Exogenous Appliction of Polyhydroxy Fullerence Nanoparticles

Thesis Info

Access Option

External Link

Author

Shafiq, Fahad

Program

PhD

Institute

Government College University

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Botany

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/14694/1/Fahad%20Shafiq%20-%20PhD%20Botany%202019%20%20GCUF%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726450651

Asian Research Index Whatsapp Chanel
Asian Research Index Whatsapp Chanel

Join our Whatsapp Channel to get regular updates.

Similar


The effect of exogenous polyhydroxy fullerene (PHF) nanoparticles on wheat salinity tolerance was studied. The PHF stock solution was prepared in MiliQ water and characterized via TEM, UV-Vis spectrum, EC, pH and TOC analyses. After this, different exogenous PHF concentrations (non-primed seed, 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 1000, 10,000 nM)were usedto study early growth response of wheat seedlings under 0 and 150 mM NaCl stress.The PHF doses, 0, 10, 40, 80 and 120 nM PHFwere selected to study their effects on wheat seedlings under salinity when supplied through three different exogenous modes viz. root zone, seed priming and foliar spray. Various morpho-biochemical attributes studied and the results revealed thattwo modes of PHF exogenous application (Seed priming and foliar spray) selected to check its role at later growth stages.During experimentation, six priming treatments (non-primed, 0, 10, 40, 80 and 120 nM) while three foliar spray treatments (0, 40 and 80 nM PHF) were used to study their influence on the growth, biochemical, physiological, ionic and yield attributes. In an overall note, salinity decreased growth, photosynthetic pigments, leaf water relations and gas exchange attributes. Under salt stress, increased hydrogen peroxide contents and lipid peroxidation was recorded. In addition, increase in antioxidant activitieswas recorded in response to salt stress. Changes in nonenzymatic antioxidants were also evident that included reduction in ascorbic acid (AsA) and increase in flavonoids, phenolics, sugars and proline contents. Marked increase in Na+ions in wheat plant parts recorded under stress consistent with decrease in shoot K+, Ca2+ and P ions. On the other hand, exogenous PHF treatments improved growth attributes of wheat consistent with improvement in photosynthetic pigments, enzymatic antioxidant activities and enhanced sugar and proline accumulation. Furthermore, the plants treated with PHF exhibited significant increasein the photosynthetic activity and leaf water relations. In short, PHF exogenousapplication caused 6-10 % increase in the 100-grain weight under salinity in comparison with control plantsOverall, seed priming with 40 and 80 nMPHF were the most effective treatment that reduced oxidative stress, and increased antioxidant capacity and contributed to improvements in wheat grain yield in wheat under salt stress.
Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

16. Al-Nahl/The Honey Bee

16. Al-Nahl/The Honey Bee

I/We begin by the Blessed Name of Allah

The Immensely Merciful to all, The Infinitely Compassionate to everyone.

16:01
Allah’s Judgment is coming.
So do not seek to hurry it – O the disbelievers.
All Glory be to HIM!
And HE is Exalted - far above what they ascribe to HIM in Divinity and Worship.

16:02
Tell them, O The Prophet, that everyone does not deserve to get the angels descend on to him.
HE sends down the angels with the Spirit by HIS Command upon whoever HE
Pleases of HIS servants, saying:
‘Warn people that there is no entity of worship except ME alone.
So keep away from MY disobedience’ in reverence, awe, and piety!

16:03
HE created the celestial realm and the terrestrial world in truth with a definite purpose.
HE is Exalted - far above what they ascribe to HIM.

16:04
HE created the human being from a drop of semen,
yet the same human being openly becomes a fierce adversary.

16:05
And the livestock - HE created them for you.
There is warmth in them - in clothing from their hides/wool - and other benefits,
and of them, you obtain meat to eat as well.

16:06
And there is beauty in them for you too -
when you bring them home in the evening, and
when you take them out to pastures in the morning.

16:07
And they carry your loads to distant far-off lands,
which you could not otherwise reach without hardship to yourselves.
In fact, your Rabb - The Lord is All-Gracious and All-Compassionate.

16:08
And HE...

مدى استخدام الأنظمة الإلكترونية في إدارة العمليات الإدارية والتعليمية بالتعليم المفتوح (بالتطبيق على جامعة السودان المفتوحة)

هدفت الدراسة للكشف عن مدى استخدام الأنظمة الإلكترونية في إدارة العمليات الإدارية والتعليمية بالتعليم المفتوح، من خلال تطبيقها على عمليات جامعة السودان المفتوحة، أُستخدم المنهج الوصفي التحليلي، وتمثل مجتمع الدراسة في العاملين بجامعة السودان المفتوحة، حيث تم اختيار عينة قصدية قوامها 38 من موظفي الخدمة التعليمية بفروع الجامعة بولاية الخرطوم، ورئاسة الجامعة، وكانت أداة الدراسة الإستبانة التي تكونت من ثلاثة محاور بواقع 36 عبارة، تم تحليل البيانات بواسطة التحليل الإحصائي SPSS، وكانت أهم النتائج أنَّ لاستخدام الأنظمة الإلكترونية دور فعال في إدارة العمليات الإدارية والتعليمية والتقويمية، وأوصت الدراسة برفع كفاءة القوة البشرية العاملة في مجال الأنظمة الإلكترونية بالتأهيل والتدريب

Evaluation of Some Commercial and Candidate Cultivars of Spring Wheat Triticum Aestivum L. for Salt Tolerance

A study was planned to assess the salt tolerance potential of 10 wheat cultivars, five newly developed (S-24, Saher-2006, Inqlab-91, Faisalabad-2008 and Lasani) and five candidate (P.B-18, M.P-65, SH-20, AARI-10, G.A-20). Two salinity levels were (0 mM and 150 mM) applied at three growth stages seedling, tillering and boot stages. This study comprised independent two experiments. The first experiment was performed to screen the 10 wheat cultivars on the basis of biomass production and yield under saline stress. Four wheat cultivars (S-24, Saher-2006, Lasani and AARI-10) were selected on the basis of the results of the first experiment and again grown in the following year for detailed study of physio-biochemical responses under saline stress imposed at different growth stages. Saline stress application at different growth phases caused a marked reduction in biomass production, yield, different gas exchange attributes, photosynthetic pigments and water relation parameters. However, comparatively cvs. S-24 and Saher-2006 showed less reduction in these attributes due to saline application at three growth stages. Less cholophyll degradation, comparatively higher photosynthetic and transpiration rate and leaf turgor were observed due to saline stress imposition at the boot stage. However, it was greater due to salinity imposed at the seedling stage. Furthermore, NaCl applied at three different growth stages markedly increased the endogenous Na+ level and caused reduction in Ca2+, K+, K+/ Na+ and Ca2+/ Na+ ratios. Overall, cvs. Saher-2006 and S-24 maintained higher K+/ Na+ and Ca2+/ Na+ ratios as compared to the other wheat cultivars under salt stress. There was a less decrease in K+/ Na+ and Ca2+/ Na+ ratios under the saline environment developed at the boot stage while maximum at the seedling stage. A significant alteration in different biochemical attributes was observed in all wheat cultivars under saline stress imposed at three growth stages. For example, a substantial increase was observed in H2O2, MDA, soluble proteins, proline, glycinebetaine and activities of different aintioxidants (SOD, POD, CAT, phenolics). Different wheat cultivars showed variation in these biochemicals in response to salt stress applied at different growth stages. Maximum antioxidative enzymes activities were observed in cvs. S-24 and Saher-2006 due to saline stress application at three growth stages. However, cvs, S-24 and Sher-2006 had higher accumulation of GB and proline as compared to the other cultivars (Lasani and AARI-10) under saline stress imposed at early growth stages (seedling and tillering) than at the boot stage. Anatomical studies of four wheat cultivars under saline stress applied at different growth stages showed that cvs. S-24 and Saher- 2006 had thick epidermis of stem and root, greater schlerification in stem and leaf, higher vascular bundle and metaxylem area and greater cortical cell area due to saline stress applied at three different growth stages than the other two cultivars (Lasani and AARI- 10). These anatomical characteristics showed their better adaptability under saline environment in terms of checking water loss, good water storage capacity, and better toxic ion compartmentalization due to large size vacuoles of cortical cells and better water and nutrient transport through vessels. So, it can be inferred that wheat is more prone to adverse effects of saline stress when applied at the early growth stage (seedling) than at later growth stages. Overall, of all wheat cultivars cvs. S-24 and Saher-2006 were more tolerant to saline stress.