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پروفیسرحامد حسن قادری

پروفیسر حامد حسن قادری
افسوس ہے کہ ادھر چند مہینوں کے اندر دنیائے علم و ادب کی کئی نامور ہستیوں، پروفیسر حامد حسن صاحب قادری، سید ہاشمی صاحب فرید آبادی اور مولانا صلاح الدین احمد نے انتقال کیا، پروفیسر حامد حسن صاحب قادری ہماری پرانی علمی بزم کی یادگار تھے، اردو اور فارسی زبان و ادب اور اس کی تاریخ پر ان کی نظر بڑی گہری اور وسیع تھی، تاریخ داستان اردو ان کی وسعت نظر کی شاہد ہے، وہ عرصہ تک سینٹ جانس کالج آگرہ میں اردو اور فارسی کے استاد رہے، ریٹائر ہونے کے بعد کراچی چلے گئے تھے، اور وہیں وفات پائی، ان کی وفات سے ایک پرانی علمی و تہذیبی یادگار مٹ گئی۔
(شاہ معین الدین ندوی، اگست ۱۹۶۴ء)

Analysis of Student's Academic Achievement in Music of Visayas State University System

Parental factors impact students’ self-concept and academic performance during the pandemic. Thus, this study determined the students’ self-concept and academic performance and the parental factors related to it. The research design was descriptive-correlational, and 500 nonrandom college students in West Philippines participated in the study. Researcher-made instruments were used, which were subjected to reliability and validity evaluation. Data were collected online from June 2021 to July 2022 and were analyzed using descriptive (frequency counts and percentage) and inferential statistics (Spearman correlation). Results revealed a positive self-concept and satisfactory academic performance among the students. Besides, parental factors such as educational attainment and school/classroom involvement are significantly related to self-concept and academic performance. Further, self-concept is significantly associated with academic performance. This shows that some parental factors are vital in developing the student’s self-beliefs and supporting their studies and academic endeavors amid the COVID-19 pandemic. Future studies may consider more factors related to academic achievement and self-concept. Other researchers may find the mediation or moderation effect of self-concept between parental factors and students’ scholastic achievement. KEYWORDS: academic performance, COVID-19 pandemic, distance learning, higher education, parental factors, self-concept

Biodiversity of Diazotrophs in Rhizosphere of Potato Solanum Tuberosum L.

Potato is the third most important food crop which requires high fertilizer that leads to environmental pollution. The use of biofertilizer is environment friendly and cost effective hence is suitable for sustainable agriculture. In this study, 44 bacterial isolates including mostly Azospirillum, Bacillus, Brevundimonas, Enterobacter, Pseudomonas and Rhizobium spp. were isolated from potato rhizosphere of which 32 were able to fix atmospheric N2 and 29 showed indole acetic acid (IAA) production. Strains showed high metabolic and genetic diversity based on BioLog, ERIC and BOX-PCR analysis. Out of potential plant growth promoting rhizobacteria (PGPR) tested for inoculation response in potato, it was observed that the N2 fixation (%Ndfa) decreases with the increase in applied N for Rhizobium sp. TN04 and Azospirillum sp. TN09 whereas no effect was observed for Azospirillum sp. TN03. Azospirillum sp. TN09 showed the highest %Ndfa among three tested isolates. Under field conditions, Azospirillum spp. TN03, TN09 and Rhizobium sp. TN04, Rhizobium sp. TN04 increased plant height (18%), dry weight (18.5%) tuber dry weight (14%) and tuber yield (19%). Azospirillum, Brevundimonas and Rhizobium spp. also maintain substantial population with potato roots. Metagenomics were employed to study total bacterial diversity in the rhizosphere of potato from major potato growing areas of Punjab, Pakistan showed that structural community (based on 16S rRNA) is almost similar across all the regions whereas functional diversity (based on nifH) of diazotrophs is mostly variable. Abundance of diazotrophs (108-1010 copies of nifH g-1 of soil) changed among regions. Pyrosequencing of nifH validated maximum diversity in Sheikhupura (446 species) whereas minimum in Gujranwala area (291 species). Overall in the potato rhizosphere, most abundant class was α-proteobacteria followed by β-proteobacteria. The study concludes that abundance of different genera varies across different regions due to many biotic and abiotic factors. Azospirillum spp. TN03, TN09 and Rhizobium sp. TN04 omnipresent and have potential to improve potato yield up to 15-19% subsequently saving 50% nitrogenous fertilizer, are recommended as potential candidates for biofertilizer production for potato crop. The study also shows that potato xvi harbor a diverse range of novel diazotrophs (not known earlier) which opens new horizons for future prospects.
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