The use of nanomaterials in agriculture is a current need and could be helpful in overcoming food security risks. Brassica napus L. is the third most important crop for edible oil, having double low unsaturated fatty acids. In the present study, we investigated the effects of green synthesized Zn NPs on biochemical effects, antioxidant enzymes, nutritional quality parameters and on the fatty acid profile of rapeseed (B. napus). Plant-mediated synthesis of zinc nanoparticles (Zn NPs) was carried out using Mentha arvensis L. leaf extract followed by characterization through ultraviolet–visible spectroscopy (UV-vis), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-Ray (EDX), and X-Ray diffraction (XRD). NPs exhibited irregular shapes ranging in size from 30–70 nm and EDX analysis confirmed 96.08% of Zn in the sample. The investigated biochemical characterization (protein content, proline content, total soluble sugar (TSS), total flavonoid content (TFC), and total phenolic content (TPC) showed a substantial change on exposure to Zn NPs. A dose-dependent gradual increase was observed in the antioxidant enzymes, superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT). Oil and moisture contents dropped significantly from the control level in the rapeseed (B. napus) varieties. However, different trends in nutritional (Zn, Na+, K+) and fatty acid profiling of B. napus have been noted. This study demonstrates that Zn NPs have the potential to improve the biochemical, nutritional, antioxidant enzymes, and fatty acid profile of B. napus varieties.

The study examines socio-psychological orientations of students of technical education (commerce colleges, technology colleges, Technical training institutes, and vocational training institutes) towards the learning of English language. The study emphasizes the social psychological variables of attitude and motivation. In technical education the syllabus of English is different from the institutes of general education. The students of general education study English language till the last year of their graduation, while the students of commerce education study functional English in the 3rd year and business communication in 4th year. These courses relate to business correspondence. The study finds that students of technical education concentrate on learning of English for its utilitarian purpose. It is due to the reason that the absence of inadequate language policy and linguistic reality of Pakistan impact these essential socio- psychological elements of the student and his view point about English language learning. Further, students also like to learn English language due to 'instrumental' purpose or for the purpose to acculturate themselves with the target language society.