Biological activity of Citrus paradisi peel

Citrus paradisi (Grapefruit) peel oil has medicinal properties which shows beneficial effects against plant pathogenic fungi Objective: The aim of this research was to investigate the antifungal potential of Citrus paradisi peel oil against different plant pathogenic fungal strainsMethods: The essential oil of Grapefruit peel was provided in different concentrations 0.25 to 0.75ml per 100 ml of media to 3 different plant pathogenic fungal strains i.e, Fusarium oxysporum, Fusarium solani and Dreschlera tetramera and its effect on the growth of fungi was recorded Results: The studies provided the results compared with the controlled media, which showed the fungal growth was almost completely inhibited at 0.75ml concentration of oil, even the lower concentration was sufficient to retard the growth Conclusions: The study provided the blue print for fungicidal spray to cure serious diseases in plants, such as, rice blast, papaya fruit rot, seedling collar rot and wilt diseases.

Exploring Teachers and Students’ Experiences About the Use of Information and Communication Technologies Icts in Teaching and Learning Science

In today's developing world, use of Information Communication and Technology (ICT) resources is believed to be useful for promoting conceptual learning in science in general and abstract concepts in particular. In this sense, it is important to understand the use of ICT resources in teaching and learning science from teachers' and students' perspectives. Therefore, this study was carried out in order to explore science teachers' and their students' experiences about the use of ICTs in their teaching and learning of science. The research was conducted in a secondary private boys' school in the District Chitral of Khyber Phaktunkhwa, Pakistan. A qualitative case study method was used to investigate the problem. For the data collection, semi- structured interviews with two science teachers and focus group discussions with the students of Grade 9 were carried out. Classroom observation and document analysis were also used as data collection tools for the study. The key findings of the study indicate that teachers are using ICTs with various purposes in mind. These include: to facilitate in-depth learning of abstract concepts in science, to enhance teachers' content knowledge and pedagogical knowledge, and to use social media in teaching and learning of science and for administrative planning of academic work. In addition, the study points out students' experiences of using ICT in learning of science. It includes: ICTs as tools for enhancing knowledge, developing interest in science and helping students in becoming independent learners. However, teachers and students experience some challenges in using ICTs, which include lack of ICT skills and knowledge, misuse of internet (i.e. surfing offended websites and using only for chatting purposes) and accessibilities to ICT resources. But despite such challenges, teachers are committed and motivated to use ICTs in their teaching and learning of science. The study has diverse implications. The study helps the science teachers and students of the participating school to reflect on their roles and current practices regarding the application of technology in science teaching. Additionally, it gives me the understanding of the usabilities and effectiveness of ICTs in teaching and learning process which would, indeed be helpful in my professional life. This may challenge the educators and the school leadership to work harder to keep themselves abreast of the use of ICTs, ideally, triggering action at the management and government level to do more to integrate ICTs with teaching and learning processes and practices.