Home > Zinc Nutrition and Microbial Allelopathy for Improving the Productivity, Grain Biofortification and Tolerance Against Abiotic Stresses in Chickpea
Zinc Nutrition and Microbial Allelopathy for Improving the Productivity, Grain Biofortification and Tolerance Against Abiotic Stresses in Chickpea
Zinc (Zn) deficiency in sandy soils is one of the major reasons of low chickpea yield in Pakistan. Soil Zn deficiency is often associated with human Zn deficiency due to low Zn concentration in the edible plant parts. For this, a series of experiments were conducted to: (i) optimize the Zn application through seed treatment in desi and kabuli chickpea, (ii) charectrize desi and kabuli chickpea genotypes for genetic diversity and grain Zn bioavailability, (iii) evluate the role of plant growth promoting bacteria (PGPB, Enterobacter sp. MN17) in combination with Zn application in improving the productivity and grain biofortification of desi and kabuli chickpea, (iv) study the mechansim of Zn induced tolerance against heat and drought stresses in desi and kabuli chickpea. For optimization, Zn was applied through seed priming and seed coating. Among seed treatments, seed priming with 0.001 M Zn and seed coating with 5 mg Zn kg-1 seed significantly improved stand establishment and early seedling growth of both chickpea types. Zinc application, through either method, improved the stand establishment, grain yield, and grain biofortification. The use of PGPB together with Zn application was more effective in improving the stand establishment, grain yield and grain Zn biofortification. The response of chickpea types differed in Zn and Zn+ PGPB application. In kabuli chickpea, Zn application is more effective through seed coating + Enterobacter sp. MN17, while in desi, Zn application through soil application + Enterobacter sp. MN17 was the best in improving the productivity, profitability, bioavailable Zn and grain quality. The results of genetic diversity revealed low to moderate genetic diversity (0.1488 for desi and 0.1041 for kabuli) among the tested chickpea genotypes (n = 16) of Pakistani origin. However, there was significant variation for yield and grain quality. The highest grain yield, grain Zn concentration and bioavailable Zn was recorded in desi genotype NIAB-CH-2016 and in kabuli genotype Noor-2013. Abiotic stresses suppressed the growth of chickpea, and under Zn deficiency the suppressive impacts were more severe. However, adequate supply of Zn (1 µM) improved the tolerance against the drought stress (35% water holding capacity) and heat (35/30°Cday/night) stresses in chickpea owing to the improvement in the activities of enzymatic antioxidants, photosynthesis, and accumulation of free leaf proline. In conclusion, Zn fertilization and Zn + PGPB improved the stand establishment, productivity and grain biofortification of chickpea. The chickpea genotypes of Pakistani origin had low to moderate genetic diversity for grain yield and bioavailable Zn. Adequate supply of Zn improves the chickpea growth and performance under abiotic stresses.
’’ہائے ہائے‘‘ تے ’’اوئی اوئی‘‘ دیاں کوکاں سن کے، متھے تے چٹی پٹی بنھی ویکھ کے، سجا ہویا منہ سامنے والے دو دند ٹتے ہوئے تے لت اتے پلتر بنھیا ہویا ویکھ کے تسیں میرے کولوں ایہہ ضرور پچھو گے جے مینوں ہویا کیہ اے۔ کل تک تے چنگا بھلا ساں۔
میرے بھراؤ! ہویا کجھ وی نئیں تہاڈیاں ساریاں گلاں دا جواب ایہہ وے پئی ہویا صرف اینا جے پچھلے کچھ دناں توں ساڈے اتے ایہہ گل ظاہر ہوئی۔ پئی ساڈے وچ اک اچا تے سچا لیڈر بنن دیاں ساریاں خوبیاں موجود نیں ایہناں وچوں ساریاں توں چنگی خوبی ساڈے اپنے خیال وچ ایہہ سی بھئی ساڈے وچ حق دی گل کہن دی صلاحیت اﷲ میاں نے لوڑ توں ودھ بھردتی اے۔ اسیں اپنی ایس خوبی نوں بڑا ای گھٹ ورتیا سی۔ اسیں ایہہ فیصلہ کیتا جے اگوں توں جدوں ویلا لبھیا اپنی ایس خوبی نوں جی داراں وانگوں ورتاں گے۔
ساریاں توں پہلاں تے سانوں اپنی ایہہ خو بی جگ نوں وکھاون د اموقعہ اک سینما وچ ملیا۔ فلم نویں سی تے بھیڑ بہتی سی۔ اسیں ٹکٹ لے کے اک پاسے کھلو گئے کیوں جے ہالی پہلا...
The topic of this research is “Preferences of Qazi Sana Ullah Pani patti in Tafseer of Surah al Fatiha, and these preferences are taken from his famous book of tafseer, named: “Tafseer al Mazhari. Qazi Sana Ullah Pani Patti is one of the most eminent scholars of Tafseer in sub-continent. He belongs to the progeny of Usman R.A. He was born in PaniPat and got his early education there. Then he travelled to Dehli for higher education of that time. His teachers include: Abdul Raheem al Umari al Dehlvi, Muhammad Abid al Sinami, Sheikh janjan al Dehlvi. Among his famous books are followings: Al Tafseer al Mazhari, Mabsoot, Al saif al Maslool, Irshad ul Talibeen, Tazkira tul Mota, Haqeeqa tul Islam, and many other books. In this research I will discuss preferences of Qazi Sana Ullah with reference to two major types of Tafeer i.e Tafseer bil riwayyah (narration) and Tafseer bil dirayyah (sound reasoning).
The topic of the study was “Developing a Model for Student Support Services at Allama Iqbal Open University”. The objectives of the study were to evaluate the existing facilities available in student support services at AIOU, review various models used in developing and developed countries and to develop student support services model for AIOU. The population of the study was the students, tutors, RDs, DRDs, ARDs, academicians, and policy makers of AIOU, UKOU and OUSL. The sample comprised of 200 students of AIOU, 200 of UKOU and 200 OUSL semester Spring 2003 of B.Ed programme. 50 tutors of AIOU, UKOU and OUSL, 20 RDs, DRDs, ARDs of AIOU, 20 OUSL and 20 RDs of UKOU, 10 policy makes of AIOU, UKOU and 10 OUSL, 50 academicians of AIOU, UKOU and OUSL. viiTo achieve the objectives of the study, five questionnaires were constructed for students, tutors, RDs/DRDs/ARDs, policy makers and academicians of AIOU and UKOU, consisting of four parts: (i) general services (ii) tutorial services (iii) counselling services and (iv) library services. All questions were designed at five point rating scale; however, one last question was open ended. The score on each item was analyzed by applying chi square, percentage and mean score formula to determine the objectives of the study. The major findings were, (i) Regional campuses of UKOU worked independently as mini university while AIOU regional centre/ campus worked under the main campus, (ii) UKOU students enjoyed the facility of Open University Student Association while AIOU did not form such an association, (iii) UKOU Regional Campuses provided number of better quality student support services than AIOU. On the basis of data analysis, it was found that in general AIOU, UKOU and OUSL cumulatively, resembled in their student support and they had attained great popularity by dint of their broadcast TV and radio programmes. Also, most of the students were highly satisfied with the media support services. However, AIOU exceeded in half of the categories of facilities in establishment and administration as regards enrollment in comparison to UKOU and OUSL. There was no significant difference in the performance of tutors, quality of face to face meetings, standard of resource centers and techniques of media support, but AIOU could not show high standards of counseling as compared to UKOU. Three universities could not achieve some of their claimed targets and needed improvement in order to maintain the viiiquality of their education through effective training of their personnel and evaluating the provisions presently made. The findings of the study have led the researcher to recommend that (i) regional campuses should be made independent like UKOU (ii) counselling and guidance cell should be established in every regional campus (iii) modern communication faculties like toll free phones or auto answer should be provided at AIOU regional campus (iv) Allama Iqbal Open University Student Association should be founded on the lines of Open University Student Association of UKOU. After analyzing and interpretation of data and document, the main conclusions were; UKOU, OUSL and AIOU provide a number of student support services through their regional campuses but UKOU regional campuses work independently like mini university. However, OUSL and AIOU regional campuses work under the main campus. For the contact facilities, OUSL and AIOU students rely only upon mail and telephone, while UKOU students enjoy a number of different facilities, for example, toll free phones and voice e-mail etc. The major recommendations of the study are that the AIOU regional centres should appoint tutors on merit and should intimate tutors in time. There may be arrangements for comprehensive training of tutors for the betterment of tutorial support system. It was also recommended that AIOU may be affiliated with all the public and institutional libraries in big districts for the facilitation of the students. The tutors may be trained effectively for solving the problems clientele as counselors more considerately and sympathetically. Assignments may be given specific and ixencouraging remarks to ensure the improvement on part of the students. Computer assisted learning programmes may be introduced on higher level courses and media support may be made interactive for getting opinions from students.