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Home > Evaluation of Genetic Diversity of Wheat for Stripe Rust Caused by Puccinia Striiformis F. Sp. Tritici Resistance

Evaluation of Genetic Diversity of Wheat for Stripe Rust Caused by Puccinia Striiformis F. Sp. Tritici Resistance

Thesis Info

Author

Sumaira Rizwan

Department

Deptt. of Plant Sciences, QAU.

Program

PhD

Institute

Quaid-i-Azam University

Institute Type

Public

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2009

Thesis Completion Status

Completed

Page

ix,112

Subject

Plant Sciences

Language

English

Other

Call No: DISS/Ph.D BIO/2164

Added

2021-02-17 19:49:13

Modified

2023-01-06 19:20:37

ARI ID

1676718931199

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’’نیل کے سنگ‘‘ایک اظہاریہ

نیل کے سنگ :ایک اظہاریہ

                                                                                                                ڈاکٹر نذر عابد

                                                                                (صدرِ شعبہ اردو، ہزارہ یونیورسٹی ،مانسہرہ)

’’نیل کے سنگ‘‘ ڈاکٹر الطاف یوسف زئی کی سفر نامہ نگاری کی مسافت کا دوسرا پڑائو ہے۔ اس سے قبل وہ ’’تھائی لینڈ کے رنگ‘‘ کے نام سے اپنا تھائی لینڈ کا سفر نامہ قارئین کی نظر کر چکے ہیں۔ ان کے اولین سفر نامے کو علمی و ادبی حلقوں میں خاصی پذیرائی حاصل ہوئی ۔مقامِ اطمینان ہے کہ سفر نامہ نگاری کی تخلیقی مسافرت کے اس دوسرے پڑائو پر بھی سفر نامہ نگار سفر کرنے اور سفر لکھنے ہر دو حوالوں سے کسی قسم کی جسمانی ،ذہنی اور روحانی تھکن کا شکار نہیں ہوا۔ ’’نیل کے سنگ‘‘ ان کے دیارِ مصر کے سفر کے احوال و تاثرات کی روداد ہے جس میں وہ ہر دم ایک تازہ دم مسافر کے روپ میں نت نئی منزلوں کی جستجو میں سرگرداں نظر آتے ہیں۔

مصر دنیا کی قدیم تہذیبوں میں سے ایک ہے جسے تاریخی اعتبار سے انسانیت کے لیے دریائے نیل کا تحفہ قرار دیا جاتا ہے۔ ڈاکٹر الطاف یوسف زئی کو دنیا کی قدیم تہذیبوں سے جانکاری کے حوالے سے ایک خاص شغف ہے۔ مصر میں گزارے گئے وقت کے دوران میں انھوں نے اپنی طبعی مناسبت سے خوب کام لیتے ہوئے مصری تہذیب کی جڑوں تک رسائی حاصل کرنے کی کامیاب کوشش کی ہے۔ اس کا واضح اظہار اس سفر نامے میں مصر کے مختلف تاریخی و تہذیبی مقامات کے احوال پڑھتے ہوئے ہوتا ہے۔ ڈاکٹر صاحب نے ایسے مقامات بیان کرتے ہوئے تاریخ سے بھرپور استفادے کے ساتھ ساتھ مقامی باشندوں میں گُھل مل کر وہاں کے ماضی و حال کے متعلق ایک تہذیبی و تمدنی منظر نامہ مرتب کیا ہے۔ تاہم...

قیام امن میں مراکز تعلیم کا کردار تعلیمات نبویﷺ کی روشنی میں

One of the most important and fundamental elements of a civilized society is the presence of peace. In the absence of peace nothing can prosper and advance. In this age of science and technology, terrorist activities can become a cause of isolation from the rest of the world. That is why, every country gives extra attention to its peace and security. Many countries allocate huge sums of budget for this purpose. However, it is not only the responsibility of a government to establish peace, but, also of other institutions, especially, the educational institutions to play their role in this regard. In this article, the role of educational institutions for the promotion of peace has been discussed. Every person of society spends some time in these institutions. These institutions can teach and train their students to develop a peaceful conduct and tolerate the different behaviors and views. But there are some problems and difficulties for educational institutions to play their required role for peace. In the perspective of our country, we can say that if we solve these problems, our country can become more peaceful, will make progress by leaps and bounds and can become one of advanced countries of the world.

Antimicrobial, Antioxidant and Protective Efficacy of Flower and Leaf Extracts of Calotropis Procera Against Free Radical Damage

Different soluble fractions viz., hexane, ethyl acetate, butanol and ethanol of Calotropis procera (Ait.) R. Br. were screened for their antimicrobial properties by using agar-well diffusion method against the human pathogens viz., Escherichia coli and Salmonella typhi (Gram negative), methcillin resistant Staphylococcus aureus and Micrococcus luteus (Gram positive), in vitro antioxidant properties were analyzed by means of DPPH free radical scavenging method, reducing ability assay and lipid peroxidation inhibition method. Furthermore, in vivo protective efficacy of C. procera extract against (NSAID) ibuprofen-induced nephrotoxicity in rat model was also determined by evaluating renal function markers, plasma measure of antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT) along with the determination of tissue lipid peroxidation markers, i.e. aldehyde products malonyldialdehyde (MDA) and 4- hydroxy-nonenal (4-HNE). Phytochemical analysis was also carried out for the detection of phenolic constituents, amino acids, protein, carbohydrates, reducing and non-reducing sugars in test plant. In the present findings the hexane fraction of C. procera flower and leaf have been proved very significant with maximum zones of inhibition i.e., flower (22mm) and leaf (23mm) against M. luteus. While, other tested fractions of C. procera flower and leaf showed significant antimicrobial activity against all pathogens. Whereas, in the present finding it was also determined that the flower ethanol extract showed the highest DPPH free radical scavenging activity (88.19% with 8 mg/ml) as compared to BHA which showed 85% scavenging activity as standard. Similarly, C. procera flower and leaf extracts were also analyzed for reducing capacity. The highest absorbance (i.e., 1.827 with 10mg/ml) was recorded in C. procera flower water extract as compared to standard which showed (0.238) absorbance. In vitro lipid peroxidation inhibition, another model was used to check the antioxidant capacity of C. procera. Flower water extract exhibited a concentration dependent increase in lipid peroxidation inhibition, the highest value is (89.58% with 10mg/ml) while the lipid peroxidation value in C. procera leaf water extract (i.e., 75.11% with 10mg/ml) and leaf ethyl acetate extract showed (75.11% with 8mg/ml). While, BHA (85%) and ascorbic acid (75.5%) showed lower values as compared to tested plant. However, body weight loss was successfully restored by the coadministration of Ibuprofen with C. procera hexane extract. While, increased level of renal function markers (urea, creatinine) was normalized by the administration of C. procera hexane with ibuprofen treatment. The imbalance in oxidative status was determined by evaluating decreased level of catalase, superoxide dismutase and glutathione along with increased levels of malonyldialdehyde and 4- hydroxynonenal, which was counteracted by the co-administration of C. procera hexane extract with ibuprofen which maintained cell sustainability and indicated nephro-protective activity of C. procera. Besides the above results C. procera leaf and flower aqueous extract were also used to check enzymatic activities of glucoamylase, α-amylase and urease enzymes. The flower extract is found proved to be a good enhancer of glucoamylase, α-amylase and urease activity as compared to leaf extract. A number of phytoconstituents were also detected. The presence of phytochemicals in C. procera may indicate a good correlation with that of antibacterial, antioxidant potential and protective role for in vivo model which also proved as a good enhancer of enzyme activities. Thus due to aforementioned activities, Calotropis procera may serve as a better and a protective therapeutic agent than any other synthetic drug.