since 1922


Faculty of Agriculture

Department of Bioproductive Science

Division of Plant Science

Comparative Agriculture

Examples of our activities: insufficient chilling temperatures delayed flowering for high chill apple varieties (top left) in Turkey, photosynthetic measurement in a phytotron with double the atomospheric levels of carbon dioxide (lower left), floral bud abortion of Japanese pear related to the incomplete dormancy in southern Brazil (lower middle), and colonies of Ralstonia solanacearum (a bacterial pathogen of solanaceous plants, lower right). It causes a wilt disease in several important agricultural crops such as potatoes, tomatoes, peppers and eggplant.

Our research focuses on the sustainability of crop production as affected by agricultural and other human activities in the face of global environmental deterioration. Specific studies include plant ecophysiology of global warming in temperate fruit crop production, and soil microbiology to establish sutainable farm management systems that suppress soil-borne diseases through community evolution of soil microorganisms.

Our research also promotes collaboration with the various national research institutes and laboratories located in Japan and worldwide.