79458 - Elements Of Chemistry And Biochemistry Of Agrochemicals

Academic Year 2016/2017

  • Docente: Youry Pii
  • Credits: 3
  • SSD: AGR/13
  • Language: English
  • Teaching Mode: Traditional lectures
  • Campus: Bologna
  • Corso: Second cycle degree programme (LM) in International Horticultural Science (cod. 8883)

Learning outcomes

The course aims at providing students with the knowledge and expertise on the agrochemicals modes of action and the fate of these chemicals in the agro-ecosystem. This knowledge will allow the sustainable management of this agricultural practice for the protection of cultures.

Course contents

Classification of agrochemicals.

Agrochemicals and their metabolism within cells: mode of action of fungicides (interference with respiration, biosynthesis of sterols, chitin, tubulin and nucleic acids); mode of action of insecticides (neurotoxic and decoupling insecticides); mode of action of herbicides (interference with photosynthesis, biosynthesis of amino acids and biosynthesis of lipids).

Agrochemicals metabolism in plants: reactions of oxidations, reduction, hydrolysis and conjugation.

Agrochemicals fate in soil: movement (leaching, run-off, volatilization), adsorption (adsorption isotherms and adsorption coefficients) and degradation (photodecomposition, chemical and microbiological degradations).

European and Italian legislation of agrochemicals, labeling and their storage.

Practical exercise: determination of agrochemical adsorption and agrochemical degradation in soils.

Readings/Bibliography

Müller F. “Agrochemicals : composition, production, toxicology, applications” ISBN 3-527-29852-5

Roberts T.R. “Metabolic pathways of agrochemicals” ISBN 0-85404-494-9;ISBN 0-85404-499-X

Teaching methods

The course consists of lectures (18 hours frontal lessons) during which the teacher will present all the topics foreseen in the course content. Practical lessons (12 hours) to be held in the laboratory by the teacher are also foreseen.

Assessment methods

Assessment (at the end of the course) is carried out by oral examination, which will include i) questions to assess the knowledge and understanding of the course topics and ii) questions designed to assess the ability of transferring the acquired skills to case studies. Also the knowledge acquired during the practical lessons will be assessed.

A single final mark will be awarded on the following criteria: i) clarity of the answers, ii) ability to summarize, evaluate and establish relationships between topics, iii) independence of the judgment and iv) the ability of reworking.

Teaching tools

Course topics will be presented using Power Point presentation and at the end of each lesson a paper copy will be distributed directly to the students.

Office hours

See the website of Youry Pii