Numbering Code	U-AGR01 3A228 LJ78	Year/Term	2022 ・ First semester
Number of Credits	2	Course Type	Lecture
Target Year	3rd year students	Target Student
Language	Japanese	Day/Period	Fri.2
Instructor name	KUROKAWA SHUNJI (Graduate School of Agriculture Professor)
Outline and Purpose of the Course	Understanding biological characteristics of weeds is essential for establishing a sustainable weed management system. These include the classification and distribution of weeds, their life history characteristics, the evolution of mimic weeds and herbicide-resistant weeds, and changes in weed flora. This course aims to provide basic knowledge of these biological characteristics of weeds.
Course Goals	To understand biological characteristics of weeds to establish a sustainable weed management system. Based on what we have learned, we will be able to explain how weeds escape from weeding and we manage weeds.
Schedule and Contents	2-3 weeks of lectures will be conducted for each of the following topics, a total of 15 lectures, incorporating the latest developments of weed science in each : 1. Definition of weeds, their origin, and role in agricultural ecosystems 　 Definition and origin of weeds, their ecological role in paddy and upland fields 2. Classification and distribution of weeds, major weeds in Japan and the world 　 Weed classification from the perspective of agricultural production and their distribution. Introduction of major weeds in Jaoan and the world 3. Biological characteristics of weeds, comparative biology of crops and weeds 　 Biological characteristics of weeds regarding the frequency of habitat disturbance and the comparison to crops. In addition, the genetic exchange between crops and weeds will be explained. 4. Weed reproductive characteristics, germination and seed dormancy 　 Characteristics of sexual and asexual reproduction from the perspective of weed control. In addition, the characteristics of seed propagation are explained and the dormancy of weed seeds discussed. 5. Allelopathy of weeds, composition and succession of weed flora 　 Allelopathy of weeds, composition and succession of weed flora related to human activities, problem of invasive alien weed species. 6. Evolution of weeds, mimicry and herbicide-resistance 　 Evolution of mimic weeds and the evolution of herbicide resistance to herbicide. 7. Adaptation of weeds to agricultural practices 　 Discussing the adaptation of weeds to agricultural practices as a course summary. 8. Final examination/Evaluation of learning 9. Feedback 　 We lecturers will be available in the laboratory to answer students' questions. Questions will also be accepted via e-mail.
Evaluation Methods and Policy	[Evaluation method] Students' knowledge of the biological characteristics will be evaluated based on the results of the final examination (100 marks). [Evaluation criteria] The evaluation criteria and achievement level are in accordance with the "Evaluation Criteria and Achievement Level" described in the Student Handbook of the Faculty of Agriculture for the relevant year.
Course Requirements	Nothing in particular
Study outside of Class (preparation and review)	Study the distributed materials and review the contents of each lecture in advance.
Textbooks	Textbooks/References	Will not be used, printouts will be distributed during the lectures as necessary.
References, etc.	根本正之・冨永達編著 『身近な雑草の生物学』 (朝倉書店) ISBN:978-4-254-42041-8 This is a book that provides basic information on the biological characteristics of weeds. Inderjit ed. Weed Biology and Management. Kluwer Academic Publishers. ISBN: 1-4020-1761-8.
Courses delivered by Instructors with Practical Work Experience	分類： A course with practical content delivered by instructors with practical work experience