Dept. Bioproduction Science	Dept. Environmental Science & Landscape Architecture
Applied Entomology & Zoology Biochemistry Biotechnology of Agroresources Crop Science Environmental Control Engineering Floriculture & Ornamental Horticulture Food & Nutrition Fruit Science Genetics & Plant Breeding Microbial Engineering Molecular Cell Biology Pesticide Toxicology Plant Cell Technology Plant Morphology Plant Nutrition Plant Pathology Plant Production Engineering Soil Science Vegetable Science	Environmental Hydrology Environmental Information Environmental Plant Science Forest Ecology Garden Design Green Space Meteorology Humanistic Studies on the Environment Landscape Management Landscape Planning Planting Design Town & Country Planning
	Dept. Horticultural Economics
	Agricultural Economics Agricultural Marketing Farm Business Management Global Information Systems Horticultural Information Science
	Other
	Special Division for Practical Horticulture

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Laboratory of Fruit Science          果樹園芸学
 
 
 
 

Name*	Research interests
OHARA Hitoshi	Control of fruit development and maturation by growth regulators
OHKAWA Katsuya	Control of fruit set by plant growth regulators

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Laboratory of Vegetable Science          蔬菜園芸学
 

• Staff members
• Research students
  

   

Name*	Research interests
SHINOHARA Yutaka	Protected cultivation and techniques of vegetable cultures without soil Growing conditions and quality of vegetables
MARUO Toru	Protected cultivation and techniques of vegetable cultures without soil Transplant production and factory processing of vegetables
SATO Suguru	1. The effects of moderately elevated temperature stress on the reproductive development of tomato (Lycopersicon esculentum Mill.) 2. Physiological mechanism of blossom end rot in tomato fruit 3. Nutritional physiology of medicinal plants Glycyrrhiza glabra for commercial production

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Laboratory of Floriculture & Ornamental Horticulture          花卉園芸学
 
 
 
 

Name*	Research interests
ANDO Toshio	Studies on the genus Petunia, Solanaceae
KOKUBUN Hisashi	Analysis of Petunia axillaris (Solanaceae) occurring in Uruguay, South America

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Laboratory of Crop Science          作物学
 
 
 
 

Name*	Research interests
TASHIRO Toru
ISODA Akihiro	Crop productivity Improvement of crop production in arid areas Monitoring of crop physiology using remote sensing methods
NOJIMA Hiroshi	Effects of plant hormones on regrowth of grasses Relationship between pod growth and plant hormones Effects of abscicic acid during water stress

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Laboratory of Soil Science          土壌学

Soil is a natural and unique resource at only the earth's surface.
It is capable of surpporting plant growth and sustaining all lives on this planet.
We are dealing with wide range of Soil Science, particularly Soil Biochemistry and Soil Microbiology, to understand, maintain and strengthen the roles of soil in bioproduction as well as local and global environments.
 
 

Name*	Research interests
INUBUSHI Kazuyuki	Cycling of bio-elements in soil ecosystems Organic matter decomposition, greenhouse gases, microbial biomass in soil and compost Remediation and control of regional and global environments by soil micro-organisms
SAKAMOTO Kazunori	Ecology, physiology and biochemistry of plant symbiotic micro-organisms Microbial biomass in upland soil and rhizosphere Arbuscular mycorrhizal (AM) fungi Microbes in acid soil

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Laboratory of Plant Nutrition          植物栄養学

Plant nutrition is the field where, identification, uptake and distribution of plant nutrients and their physiological functions are primarily researched. 

The laboratory objectives are to regulate the plant growth by improvement of the nutritional environment, and to clarify the characteristics of nutrient uptake for the enhancement of the production efficiency and the quality of products.  In addition, the influences of some stresses on leaf protoplast differentiation are investigated nutritionally and physiologically for successful application of protoplast techniques to crop improvement.

Primary topics of research:

1. Utilization of urea as a fertilizer source in the hydroponic culture.
2. Relation between the quality of leafy vegetables and nutritional environment.
3. Characterization of glycosides in Brassica plants.
4. Biochemical, molecular biological and physiological studies on glutamate dehydrogenase (GDH) isozymes from Brassica napus leaf protoplasts.
5. Stress responses of leaf protoplasts leading to cell differentiation or cell death.

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Laboratory of Plant Pathology          植物病学

How are plants protecting themselves from attacks of pathogenic microorganisms? In return, what mechanisms of those microorganisms
circumvent such plant barriers and successfully infect plants, therefore causing diseases? The major goal in our laboratory is (1) to understand the regulatory and sensory processes involving mechanisms between plants and phytopathogenic microorganisms, and (2) to develop efficient techniques to control plant diseases. 

Our recent studies center around two different soil-borne fungal diseases: Verticillium wilt and Fusarium wilt. For Verticillum wilt, we are interested in the molecular mechanisms of pathogenic lines of Verticillium dahliae that causes vascular wilt diseases in various plants. Recently, we have identified differences in genomic DNA fragments between pathogenic and nonpathogenic V. dahliae groups to tomato. We are currently elucidating the genes related to pathogenicity and their molecular evolution in V. dahliae as well as F. oxysporum.

Another group in our laboratory studies the biological control of vascular wilt diseases caused by Fusarium oxysporum and V. dahliae. We have recently isolated nonpathogenic F. oxysporum as a biocontrol agent. This effective strain, named Fo304 can internally colonize plant roots and potentially induces the systemic resistance of plants. Using Fo304 and its benomyl resistant mutant, FoB2, we are trying to identify the factors involving the induction of systemic resistance. 

Our laboratory regularly opens weekly seminars, and occasionally visits other research institutes to discuss a variety of subjects relevant to plant diseases. We welcome those who are interested in plant-microorganism relationship via phenomena of plant diseases. 

Alumni association
 

Name*	Research interests
AMEMIYA Yoshimiki	Molecular mechanisms of fungal pathogenicity to plants Biological control of plant diseases
SHISHIDO Masahiro	Studies in relation to rhizosphere microbial community and plant pathosystem Studies of efficient host-parasite management systems in soil-borne diseases
USAMI Toshiyuki	The genomic analysis of phytopathogenic fungi Molecular mechanisms of fungal pathogenicity to plants

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Laboratory of Applied Entomology & Zoology          応用動物昆虫学

The Laboratory of Applied Entomology and Zoology (LAEZ) was established in 1951 at the Matsudo Campus of Chiba University. Since then a large number of national and foreign students were not only awarded academic degrees from this laboratory but also provided high skills and professional trainings needed in the area of Applied Entomology and Zoology. 

Most of the research emphasis is given to the beneficial as well as mite and insect pest species that inhabit horticultural crops. Studies on mammal and bird species of horticultural importance were also carried out in the past. However, most of the present studies are concentrated on insect and mite species.
 

Name*	Research interests
AMANO Hiroshi	Pest and predatory mites of horticultural importance Population dynamics of pest and their natural enemies Ecology of predacious and other mites
NOMURA Masashi	Molecular phylogenetics and intraspecific variation in insects (moths etc.) Life-cycle of Lepidoptera and other groups of insects
SANCHEZ-BAYO Francisco	Ecological and sublethal effects of pesticides/pollutants on ecosystems Ecological risk assessment and management of contaminants Fate, transport and phyto-remediation of pesticide residues; use of wetlands for detoxification of pollutants

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Laboratory of Pesticide Toxicology          生態制御化学

Pesticide toxicology is a discipline of plant protection dealing with chemical control of pests and various problems associated with it. Recent research has focused on the following areas:

Insecticide resistance
Factors involved in the mechanism of pyrethroid resistance in insect pests. Toxico-kinetic approach to resistance mechanisms, to evaluate quantitatively the contribution to resistance of various factors, separately and combined. Mechanisms of resistance to malathion in grain insect pests. Following the finding of unusual gender difference in GST activity in an OP resistant housefly strain, the expression of GST gene is presently being studied at molecular level. 

Toxicology of natural and synthetic products for pest control
Investigations on the synthetic pesticide contaminants found in plant-extract formulations used for organic agriculture. Toxicology of extracts from natural products.  Identification of impurities in pesticide formulations. Mechanism of action of dicofol in mites. Effect of UV light on insect attraction or repulsion.

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Laboratory of Plant Morphology          植物構造学
 
 
 
 

Name*	Research interests
NISHINO Eisho	Developmental morphology of flowers Comparative morphology of floral development in wild types and mutants
UEHARA Koichi	Cell wall development in terrestrial plants Molecular biology of MADS-box genes in flowering plants

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Laboratory of Genetics and Plant Breeding          遺伝・育種学
 
 
 
 

Name*	Research interests
KOBA Takato	Genetics Cytogenetics Plant breeding
SASSA Hidenori

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Laboratory of Environmental Control Engineering          環境調節工学

The Laboratory of Environmental Control Engineering was founded in 1965 and has been under the direction of Professor Toyoki Kozai since 1990. In the first two decades, most of our researches focused on optimizing the growth of plants in greenhouses and saving energy for plant production. Greenhouse technologies were introduced from Europe in the late 1960s, and our basic research in environmental control in greenhouses helped to spread this technology in Japan. With the oil crises during the 1970s, our practical and theoretical approaches for saving energy in greenhouses earned much praise from international societies of agricultural engineering and horticulture. Also during this period, microcomputer technologies were extensively applied to the design and control of greenhouse environments. 

From the early 1980s, the micropropagation industry in which tissue culture techniques are used to produce transplants of horticultural and forestry crops, started on a commercial basis in several countries including Japan. With its high production costs, however, the micropropagation technique was restricted,  but transplants of a few crops with high market value were produced utilizing this technique. Production of high-quality transplants with reasonable prices was the only way to establish this new agricultural business to meet the changing requirements of each country. With these changing needs, the 2nd era of our research was focused in improving the microenvironments in culture vessels. The basic idea was that the culture vessels used in micropropagation were miniature greenhouses. With the knowledge and expertise achieved from our previous research on the environmental control of greenhouses, we were able to develop a new micropropagation system that was quite different from the existing tissue culture systems. The output of our laboratory has been large in the last 10 years. Our contributions have included not only highly respected scientific papers, but also practical techniques that have been broadly adapted in the micropropagation industry throughout the world.

In the last five years, our research areas have broadened to include transplant production in closed systems. This has been the 3rd era of our research. The model crops that we used for these studies included not only vegetatively propagated transplants but also seed-propagated transplants. We developed the new concept of “closed system for transplant production” to minimize the influences of nature, and to produce high-quality transplants with a minimum use of resources. The goals of these studies have not changed from the goals of the micropropagation studies. We consider the factory-like facility as a scaled-up and modified culture vessel or greenhouse, which we had previously studied extensively. Our energetic researchers and students are currently developing new strategies for environmental control and production management to optimize the performance of transplant production systems. We are expecting many spin-offs from our research projects based on these new concepts, which will be beneficial not only in stimulating the agriculture industry but also in solving global problems of environmental conservation, food, resources and energy.

Some of current studies are listed below:

1. Measurement and control of the environment in plant production systems 
2. Utilization of computer technologies in plant production systems 
3. Environmental control in tissue culture 
4. Development of plant production systems 
5. Analysis of photosynthetic and transpirational characteristics 
6. Low-temperature storage of transplants 
7. Development of lighting systems for transplant production 
8. Environmental manipulations to maximize the value of transplants 
9. System engineering to optimize the performance of transplant production systems 

• Research students

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Laboratory of Plant Production Engineering          植物生産工学

The Laboratory of Plant Production Engineering undertakes research activities which are aimed at generating fundamental and applied information, mainly on plant production machinery and structures
 

Name*	Research interests
TAGAWA Akio	Post harvest Food engineering
OGAWA Yukiharu

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Laboratory of Plant Cell Technology          植物細胞工学
 
 
 

Name*	Research interests
MII Masahiro	Plant breeding Plant biotechnology Horticultural science
NAKAMURA Ikuo	Plant breeding Plant molecular genetics Plant molecular phylogenetics

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Laboratory of Biochemistry          生物化学

In the Laboratory of Biochemistry, metabolism of biological substances which consititute the organisms and action mechanisms of physiological active molecules are investigated at molecular level by using biochemical, enzymological, cytological and molecular-biological methods.

Our laboratory promotes actively the collaboration with other universities, research institutes and also private companies. The following four major research projects are under investigation.

1.  Studies of physiological roles of multifunctional enzymes
2.  Studies of pteridine metabolism
3.  Post-transcriptional regulation of gene expression in higher plants
4.  Identification and isolation of physiological active molecules from natural sources
 
 

Name*	Research interests
MASADA Masahiro	Regulation of pteridine metabolism Studies on function of multiple enzymes The functional mechanisms of low-molecular substances against biosis
KODAMA Hiroaki	Post-transcriptional regulation in gene expression Studies on the sulfur metabolism in higher plants

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Laboratory of Food & Nutrition          食品栄養学
 
 
 

Name*	Research interests
SANADA Hiroo	Nutritional science Vitaminology Food science
EGASHIRA Yukari	Nutrition chemistry Food chemistry

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Laboratory of Biotechnology of Agroresources          生物資源利用学
 
 

Name*	Research interests
NAKAGAWA Hiroki	Biochemistry of nitrate reductase Biochemistry of plant proteasomes Protein turnover
SATO Takahide	Plant molecular biology Fruit ripening Ethylene biosynthesis
MATSUMOTO Tomoko	Biochemistry of amine oxidase
SONODA Masatoshi	The role of nitric oxide in higher plants

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Laboratory of Microbial Engineering          微生物工学
 

Name*	Research interests
FUJII Takaaki	Applied microbiology Microbial physiology Environmental microbiology
SHINOYAMA Hirofumi	Applied microbiology Applied enzymology Environmental microbiology
AMACHI Seigo	Applied microbiology Environmental microbiology

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Laboratory of Molecular Cell Biology          分子生体機能学
 

Name*	Research interests
ANDO Akikazu	Applied microbiological and structural biological studies of microbial chitosanases Applied microbiological studies and genetic engineering of Acidithiobacillus ferroxidans
SAITO Akihiro	Chitin-recognition and -degradation system in streptomycetes

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Laboratory of Garden Design          庭園デザイン学
 

Name*	Research interests
ONO Sawako	History of landscape architectureistory of gardens Gardening
MITANI Toru	Studies on  the modern landscape architecture movement and design methods Practice in contemporary landscape design

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Laboratory of Urban Landscape Design          都市環境デザイン学
 

Name*	Research interests
TASHIRO Yoshitaka	Landscape management Green space planning Landscape design
KINOSHITA Takeshi	Landscape planning Landscape design Urban planning

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Laboratory of Town & Country Planning          地域計画学
 

Name*	Research interests
NAKAMURA Osamu	Regional planning Urban policy and community planning Rural landscape and green tourism
SAITOU Yukihiko

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Laboratory of Landscape Planning          風景計画学
 

Name*	Research interests
AKASAKA Makoto	Theory of natural parks Principles of landscape architecture Comparative study of attitudes toward nature
FURUYA Katsunori	Landscape information technology Theory of national parks Landscape planning

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Laboratory of Humanistic Studies on the Environment          環境文化史学
 

Name*	Research interests
YAMAUCHI Shohei	History of German literature Humanistic study of environment
ZHANG Jun-Hua

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Laboratory of Environmental Plant Science          緑地植物学
 

Name*	Research interests
ASANO Yoshito	Turfgrass cell breeding Turf management
KOBAYASHI Tatsuaki	Plant ecophysiology Tree water relations Desertification
TAKAHASHI Terumasa

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Laboratory of Planting Design          環境植栽学
 

Name*	Research interests
FUJII Eijiro	Planting design Landscape science
IWASAKI Yutaka
MISHIMA Komei	Planting design Landscape science

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Laboratory of Forest Ecology          緑地生態学
 

Name*	Research interests
OKITSU Susumu	Vegetation geography of East Asia Vegetation-environmental dynamics of boreal regions Forest conservation ecology
MOMOHARA Arata	Quaternary environmental and vegetation history Long-term forest dynamics in East Asia Plant evolution and extinction since the tertiary

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Laboratory of Green Space Meteorology          緑地気象学
 

Name*	Research interests
KON Hisashi	Green space meteorology Plant canopy meteorology Meteorological hazards
MATSUOKA Nobuhiro	Green space meteorology Plant canopy meteorology Meteorological hazards

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Laboratory of Farm Business Management          園芸経営技術学
 

Name*	Research interests
SAITO Osamu	Agricultural marketing Agricultural economics Farm management
YOSHIDA Yoshiaki	Farm management Women in agriculture agricultural/ peasant economics
NISHIYAMA Mima	Agricultural economics Farm management Rural sociology

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Laboratory of Horticultural Information Science          園芸情報処理学

Our Laboratory was launched in 1980 within the Department of Horticultural Economics. 
We aim at teaching theory and methodology of information science applied to problems concerning production, management, distribution, consumption, policy issues and environmental conservation of horticulture and its related industries. We offer courses on information science, rural economics, economics of information and risk, as well as providing exercises for information processing and introductory seminar for horticultural economics.
To manage horticulture and related industries efficiently, it is crucial for every organization such as farm management, farming related firms, cooperatives, governments to utilize objective and accurate information for their decision-making. To this end, necessary information have to be gathered and processed properly. We have been doing research on empirical and quantitative analysis to answer these practical needs. 

Main topics of our research are

1. Diagnosis of farm management by using information processing methods
2. Econometric evaluation of cropping behavior 
3. Quantitative evaluation of farm supporting activity
4. Quantitative analysis of farm evolution and land use
5. Econometric evaluation of land improvement projects
6. Econometric analysis of Chinese and Japanese rice production and their local characteristics
7. Empirical evaluation of sustainability of vegetable producing areas
8. Optimal resource allocation for rural planning
9. Econometric analysis of food demand
10. Econometric modeling of food consumption away from home and food industries
11. Empirical analysis of farm and rural tourism and rural diversification 
12. Input-output analysis and econometric modeling of timber related industries

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Laboratory of Global Information Systems          国際地域情報学
 

Name*	Research interests
MATSUDA Tomoyoshi	Agricultural economics Marketing Electronic commerce

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Laboratory of Agricultural Economics          園芸経営経済学

Our group in the Department offers courses for graduate as well as for undergraduate students such as micro-economics, macro-economics, econometrics, agricultural policy, agricultural development, agricultural trade, etc.  In addition to the subjects which are 'traditional' in the field of agricultural economics, environmental economics has been our new focus of teaching and research.

The major research field of Dr. Masao Kikuchi is agricultural and rural development in Asian developing countries, in particular, technological changes in agriculture, changes in markets and rural indigenous institutions, rural poverty, rural-urban labor migration, irrigation development, and irrigation management have been his major research issues. The countries of his study include the Philippines, Sri Lanka, Indonesia, Thailand, China and Japan. He has been conducting collaborative research projects on rural changes and irrigation development with economists in the International Rice Research Institute in the Philippines and the International Water Management Institute in Sri Lanka. He teaches courses on microeconomics, agricultural development, and agricultural policy.

The major research fields of Dr. Atsushi Maruyama are environmental economics and food safety. He is particularly interested in the economic valuation of agriculture-related-environments and food safety, and therefore developing quantitative methodologies as well as economic models in these fields.
 

Name*	Research interests
KIKUCHI Masao	Agricultural/rural development in Asian developing countries.  Technological changes in agriculture, markets, management and rural indigenous institutions in South East Asia
MARUYAMA Atsushi	Environmental economics and food safety Economic valuation of agriculture-related-environments and food safety Developing quantitative methodologies as well as economic models in these fields

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Laboratory of Agricultural Marketing          園芸流通経済学

Our Laboratory was established as a result of a major reorganization of the Faculty of Horticulture in 1983.  Since then, our main research topics have focused on the distribution and marketing aspects, as broadly defined, of agricultural products, such as marketing network/institutions, price formation, agricultural finance, and agricultural cooperatives.  As new faculty members joined, more recent research topics focused on the distribution of food products within the industrial organization approach and within the ‘food system’ perspective, as weel as on  international rural economic development. 

Industrial Organization Approach to Food System
    The ‘food system’ is a system encompassing agricultural production, food processing and marketing. Research has been conducted on the major differences observed in the industrial organization characteristics between the fresh food produce market and the processed food market; in the distribution of fresh fruits and vegetables, for example, major reorganizations in the wholesale market and development of marketing channels without going through wholesale market have taken place simultaneously.  In addition, the research focus also includes the analysis of industrial organization and firm behavior in processed food distribution, highlighting the recent changes in marketing strategies and distribution networks.  Above all, the research has revealed the major characteristics of the food processing industry in Japan. 

Marketing Institutions of Agricultural Products 
    The institutions involved in collection and marketing of agricultural produce are closely linked with agricultural production.  Research has been conducted to examine such institutions from organizational and functional points of view.  Empirical study has revealed that marketing of fruits and vegetables through agricultural cooperatives is done by community based marketing cooperatives and, as such, it possesses an aspect of community interest groups. 

Wholesale Markets in Fruits and Vegetables 
    In Japan, fruits and vegetables have been channeled mainly through wholesale markets.  However, recent developments in the retail markets, including the emergence of large-scale retailers, had major impacts on the organizations of wholesale markets.  Research has been conducted on the intermediate traders operating in the Central Wholesale Market.  The study reveals the growing importance of the procurement function performed by these traders, based on their highly specialized skills and knowledge, on behalf of large-scale retailers. 

Rural Development and Agricultural Marketing in Developing Countries
    Some of more recent research by faculty and students goes beyond agricultural marketing issues and reflects increasing international perspectives, including collaboration with international organizations such as the World Bank.  Research has been conducted on rural development, poverty and ‘gender and development’ issues in developing country contexts; it includes an empirical study on socio-economic class mobility in rural Philippines, a survey of intra-household resource allocation issues in developing countries, poverty analysis of female headed households in Panama, impact analysis of education projects targeted to female students in Bangladesh, and a study on rural development and agricultural marketing in China.
 

Name*	Research interests
KEINO Seiji	Agricultural marketing organization Effectiveness of marketing activities
FUWA Nobuhiko	Household class mobility in rural Philippines  Political economy of rural poverty and government policies in the Philippines during the last three decades  Quantitative analysis of the relationships among income growth, land inequality and poverty reduction across provinces in the Philippines  Intrahousehold resource allocation issues in developing countries  Gender and develoment  Impact evaluation of World Bank financed development projects
SAKURAI Seiichi	Direct marketing of agricultural products Food system analysis for fruits and vegetables Sociology of agriculture

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Other Staff
 

Name*	Research interests
TAKAGAKI Michiko	Tropical agronomy Plant stress ecology Physiology of soft wood cuttings
IKEGAMI Fumio
HOHJO Masaaki	Vegetable Science Hydroponics
WATANABE Hitoshi	Ornamental horticulture Phylogenetic systematics
OMI Yoshimitsu	Landscape architecture Landscape planting Landscape management
TSUKAGOSHI Satoru
NODA Katsuji	Elucidate the mutual relationship between above and below ground grafting of Kankitsu Physiology of the alternate bienial fruitification/flowering of Kankitsu Life-cycle assessment of effectiveness in glasshouses (pomology)

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