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The aim of present study was to investigate the allelopathic impact of sunflower water extract integrated with affinity herbicide on weed management and production of wheat variety TD-1 under field condition. The trial was carried out in a three replicated and the average plot size was kept at 3x5m (15 m2). The obtained data showed that the all the treatments considerably (P<0.05) minimized weed density, weed fresh weight, weed dry weight and weed control up to 90.33, 89.31, 89.61, 90.33% with application of sunflower water extract (1:10) @ 20 L ha-1 (One spray at 25 DAS) + Affinity 50 WP @ 0.75 kg ha-1 (One spray at 25 DAS) than control treatment. The application of sunflower water extract (1:10) @ 20 L ha-1 (One spray at 25 DAS) + Affinity 50 WP @ 0.75 kg ha-1 (One spray at 25 DAS) significantly increased number of tillers (32.34%), plant height (14.59%), spike length (27.89%), grains spike-1 (16.80%), grain weight plant-1 (47%), seed index (19.60%) and grain yield (51%) of wheat as compared with control. Overall results indicated that the sunflower water extract integrated with herbicide can be successfully used to control the narrow and broad leaves in wheat crop.

The present study was aimed to assess the efficacy of individual and combined effects of novel fuller earth, rock phosphate, and biochar (grapefruit peel) at 1% dosage on maize plant growth, soil chemical properties anduptake of toxic metals (TMs), such as Cu, Zn, Fe, and Cd, by maize plant sown in Korangi (district of Karachi, Pakistan) heavily polluted and Korangi less polluted (K-HP and K-LP) soils. The obtained results indicate that the dry biomass of maize crop increased by 14.13% with combined (FE1% + GBC1%) on K-HP soil and 18.24% with combined (FE 1% + GBC 1%) effects on K-LP soil. The maximum immobilization of Cu, Zn, Fe, and Cd was observed by 36% with GBC1%, 11.90% with FE1%, 98.97% with combined RP1% + GBC1%, 51.9% with FE1% + GBC1% for K-HP, 11.90% with FE1%, 28.6% with FE1%, 22.22% with RP1% + GBC1%, and 57.05% with FE 1% + GBC 1% for K-LP soil. After the addition of proposed substances, modification of soil OM, SOC, TOC, and pH level appeared this lead to the changes in the phyto-availability of Cu, Zn, Fe, and Cd in maize plant. It was concluded that the application of individual and combined effects of novel fuller earth, rock phosphate, and biochar (grapefruit peel) have potential to stabilize pollutants from multi-metal polluted soils for safe crop production.

This study aims to investigate the factors affecting on English speech of undergraduate students at the SMIU, Karachi. The study prospects two aspects as outcomes of the study, one to discover what are the major issues and hindrances and another one to find their solutions for developing techniques and skills to gain confidence while speaking English as a second language in ESL classroom and in public. It will further investigate as how to help develop a wonderful speech free from speech anxiety. The study administered Likert Scale as a tool for data collection. Forty participating students were recruited from the department of Computer Science, Sindh Madressatul Islam University, Karachi. Speech anxiety is a common phenomenon amongst the students in the second language classrooms. Second language i.e., English, however, has become the lingua franca of the world. It is no longer the language of only native Britishers and Americans, rather, it is a widely spoken language by most people living in every nook & corner of the world. This study investigates as to how ESL learners turn out as nervous speakers while speaking English. Findings of the study suggest that speech anxiety seems to be an unavoidable phenomenon for ESL learners as the data reveal. In addition, this study is associated with the previous studies that there is a moderate level of Foreign Language Speech Anxiety (FLSA) amongst the Pakistani English speakers. Since English is taught from the primary level and every literate person almost understands and speaks English. Pakistani English language speakers should speak without speech anxiety, though it seems to be a part of human nature being nervous while speaking English as a second language. The students should learn how to manage speech anxiety by welcoming it and try to overcome it not by mindless imitation but by being natural in English speech.

Urdu post positions need to be clearly defined because long as an accurate concept of Post position Phrases is chalked out, the concepts of Noun and Verb Phrase will also remain incomplete. The available literature describes them either semantically (traditional approach), or in Lexico-Functional-Grammar. Neither approach differentiates between their roles as case markers and post positions. Nor is their basic structure described. The researcher has tried to minimize the confusion between their mixed roles of case markers, grammatical functions, and post position.Disagreeing with the existing theory of Urdu PPs, the researcher has defined and classified them in the framework of generative grammar. This paper elaborates the internal structure of Urdu PPs, their maximal and intermediate projections, and their distribution in the clause structure. In addition to that, their overt and covert roles have also been pointed out here.