|
Title |
Professor |
|
External Link |
|
|
|
KOSHIO Kaihei Professor |
From Graduate School 【 display / non-display 】
-
Tokyo University of Agriculture Graduate School, Division of Agriculture Doctoral program (second term) Completed
1992.04 - 1995.03
Country：Japan
Studying abroad experiences 【 display / non-display 】
-
2008.09 - 2009.08 Wageningen University visiting researcher
Degree 【 display / non-display 】
-
博士（農学） ( 1995.03 東京農業大学 )
-
国際農業開発学 ( 1992.03 東京農業大学 )
Employment Record in Research 【 display / non-display 】
-
東京農業大学 農学部国際農業開発学科 副手
1997.04 - 1999.03
-
Tokyo University of Agriculture Faculty of International Agriculture and Food Studies Department of International Agricultural Development Research Assistant
1999.04 - 2000.09
-
Tokyo University of Agriculture Faculty of International Agriculture and Food Studies Department of International Agricultural Development Lecturer
2000.10 - 2005.09
-
Tokyo University of Agriculture Faculty of International Agriculture and Food Studies Department of International Agricultural Development
2005.10 - 2007.03
-
Tokyo University of Agriculture Faculty of International Agriculture and Food Studies Department of International Agricultural Development Associate Professor
2007.04 - 2015.03
Papers 【 display / non-display 】
-
Viera William, Shinohara Takashi, Iyooka Chino, Terada Naoki, Sanada Atsushi, Koshio Kaihei
The Horticulture Journal 94 ( 2 ) 190 - 199 2025
Language：English Publisher：The Japanese Society for Horticultural Science
<p>Fruit consumption is highly recommended due to its health benefits. <i>Passiflora</i> species are a good source of vitamins and antioxidant compounds such as carotenoids that are associated with a reduction in cellular oxidative processes, as well as against cardiovascular diseases and cancer development. As a result, purple passion fruit (<i>P. edulis</i>) and yellow passion fruit (<i>P. edulis</i> f. <i>flavicarpa</i>) are economically important crops that are cultivated based on the demand for their flavor and nutraceutical properties. The objective of this study was to determine the components of carotenoids and sugars in the pulp juice of passion fruit. Two Ecuadorian yellow passion fruit strains (‘INIAP 2009’ and ‘POR1’), one Ecuadorian purple passion fruit variety (‘Gulupa’) and two Asian hybrid cultivars (<i>P. edulis</i> × <i>P. edulis</i> f. <i>flavicarpa</i>; ‘Summer Queen’ and ‘Ruby Star’) were used for this research. The results showed that ‘POR1’ had high acidity and contained all carotenoids, but had the lowest amount of vitamin C, whereas ‘INIAP 2009’ had high contents of organic acids, vitamin C and β-cryptoxanthin. ‘Gulupa’ had the lowest acidity, α-carotene and citric acid content, but the highest amount of glucose, fructose, malic acid and vitamin C; this variety also showed high values of β-carotene and β-cryptoxanthin. On the other hand, ‘Summer Queen’ had high sucrose, malic acid, α and β-carotene and good amount of vitamin C, while ‘Ruby Star’ had high amounts of α-carotene, β-cryptoxanthin and citric acid, but low vitamin C content. These results can be used for further breeding programs focused on improving passion fruit quality.</p>
DOI： 10.2503/hortj.qh-150
-
Influence of High pH Stress on Morphological, Physiological and Quality Characteristics of Tomato (<i>Solanum lycopersicum</i> L.)
SEDIQUI Naveedullah, HABIBI Nasratullah, HARIS Mohammad Mustafa, POYESH Dawlat Shah, GULAB Gulbuddin, TERADA Naoki, SANADA Atsushi, KAMATA Atsushi, KOSHIO Kaihei
Tropical Agriculture and Development 68 ( 2 ) 34 - 44 2024
Language：English Publisher：Japanese Society for Tropical Agriculture
<p>High pH is widely acknowledged as a major soil constraint that naturally occurs in arid and semi-arid regions such as Afghanistan, and it is largely attributed to the excess presence of calcium carbonate. Tomato (<i>Solanum lycopersicum</i> L.) is an important vegetable produced in Kabul Province. However, this crop is mainly grown in soils with alkaline characteristics and low organic matter content. This study was aimed at investigating the effect of pH on plant growth, yield, and fruit quality. The study involved exposing tomato plants to three different pH levels (4.5, 6.5, and 8.5) using a hydroponic system under greenhouse conditions. The highest pH level was set based on a soil analysis conducted in Kabul city, which indicated that most of the province’s soils had a pH around or higher than 8.0. Results showed that high pH decreased tomato plant height, leaf, and root length; while it increased leaf chlorophyll content, leaf electrolyte leakage (EL), root respiration rate, and fruit sucrose content. It was concluded that high pH is a characteristic for most of soils in Kabul province and this parameter influenced the tomato plant growth and fruit quality traits.</p>
DOI： 10.11248/jsta.68.34
-
Viera William, Shinohara Takashi, Sanada Atsushi, Terada Naoki, Koshio Kaihei
The Horticulture Journal 92 ( 4 ) 402 - 411 2023
Language：English Publisher：The Japanese Society for Horticultural Science
<p>Passion fruit (<i>Passiflora edulis</i>) is a tropical fruit that can be consumed fresh or processed. It is a typical respiratory climacteric fruit which is highly perishable because of the loss of water that causes dehydration and thus shrinkage, affecting the fruit appearance; in addition, some quality traits such as fruit weight, firmness and vitamin C content can also be influenced. Therefore, this fruit has a short shelf life. Storage in low temperatures has been assessed to extent the passion fruit shelf life remaining its fruit quality traits; however, information about the application of the hypobaric method in this fruit is null. The objective of this research was to evaluate the physical and chemical characteristics of the yellow and purple passion fruit under hypobaric storage conditions in low temperature. Results showed the hypobaric method had a positive effect in decreasing fruit weight loss, declining the loss of firmness, and reducing the degradation of vitamin C during the storage period. It decreased the evolution of ethylene which is positive to delay fruit senescence, and the production of CO<sub>2</sub>. Finally, it was the only method which avoids the shrinkage completely in the purple passion fruits (‘Gulupa’, ‘Summer Queen’, and ‘Ruby Star’) and showed minor shrinkage in ‘POR1’ (yellow passion fruit). This method is considered as a promising technique to improve fruit storage.</p>
DOI： 10.2503/hortj.qh-081
-
The Effects of Seed Priming on Germination and Physiological Response of Hot Pepper (<i>Capsicum annuum</i>) under Drought Stress Conditions
HARIS Mohammad Mustafa, SANADA Atsushi, TERADA Naoki, GEMMA Hiroshi, KOSHIO Kaihei
Tropical Agriculture and Development 67 ( 2 ) 38 - 46 2023
Language：English Publisher：Japanese Society for Tropical Agriculture
<p>Drought stress is a major production constraint for fruits and vegetable crops not only in arid and semi-arid regions but also all over the arable lands. This study was conducted to investigate the effects of seed priming on the total germination percentage and physiological responses of hot pepper under drought stress. Polyethylene glycol (PEG 6000) was used as a priming agent with 5 concentrations (-0, -0.4, -0.8, -1.2 and -1.6 MPa). The seeds were half soaked in each concentration solution for 48 hours at 25°C, while -0 MPa treatment seeds were soaked in distilled water for the same duration. The seeds were dried to the recommended moisture percentage. The germinated seeds were raised in a seed tray and transplanted in small plastic pots at the 3 to 4 leaf stage. The drought stress treatment was started ten days after transplanting with mild (daily watering), moderate (7 day-interval irrigation), and severe (9 day-interval irrigation) treatment. The results showed that the seed priming with higher concentrations of PEG (-1.2 MPa and -1.6 MPa) significantly increased germination percentage and enhanced drought tolerance of the seedlings than lower concentrations. Whereas, the seed priming with lower concentrations of PEG (-0, -0.4 and -0.8 MPa) under moderate and severe stress on the 3<sup>rd</sup> week of experiment significantly reduced the photosynthetic rate, stomatal conductance and ethylene production. The present findings revealed that the seed priming of hot pepper seeds with higher concentrations of PEG might well alleviate drought stress disorders.</p>
DOI： 10.11248/jsta.67.38
-
Investigation of Bunch Cut at Different Times After Pollination and Flower Position in the Spikelet in Date Palm ‘Sukkary’ Variety Reviewed
Abdelazize Eljiati, Naoki Terada, Yassine Elmaati, Hammou Ouchaou, Atsushi Sanada, and Kaihei Koshio
Atlas Journal of Biology 713 - 723 2020.12
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)
Books and Other Publications 【 display / non-display 】
-
熱帯作物学
小塩海平（ Role： Contributor , 3.1 熱帯における野菜栽培の意義と特徴、5.1 熱帯における工芸作物栽培の歴史と展望）
朝倉書店 2022 （ ISBN:978-4-254-41042-6 ）
Total pages：216ページ Language：Japanese Book type：Scholarly book
-
小塩海平（ Role： Sole author）
岩波書店 2021 （ ISBN:9784004318699 ）
Language：Japanese Book type：Scholarly book
-
農学と戦争
足達太郎、小塩海平、藤原辰史（ Role： Joint author）
岩波書店 2019
Language：Japanese Book type：Scholarly book
Misc 【 display / non-display 】
-
花粉症は自然からのやさしい呼びかけ Invited
小塩海平
現代農業2025年4月号 266 - 269 2025.03
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other) Publisher：農文協
-
スサノオの鬚 花粉症が示す血縁
小塩海平
世界思想 48 12 - 16 2021.04
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other)
-
土なし農業のゆくえ
小塩海平
生環境構築史 ( 2 ) 2021.02
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other)
-
花粉症と人類（第6講）花粉光環の先の世界
小塩海平
世界 933 201 - 209 2020.06
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other)
-
花粉症と人類（第5講）スギ花粉症になることができた日本人
小塩海平
世界 932 255 - 263 2020.05
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other)
Past of Commissioned Research 【 display / non-display 】
-
スギなどの風媒花においてアレルゲンとなる花粉の形成を選択的に阻害する薬剤及びその効果的処理方法の開発
2007.04 - 2009
（株）日油 一般受託研究 The General Consignment Study
界面活性剤を用いてアレルゲンとなる花粉飛散防止技術を開発する。
Presentations 【 display / non-display 】
-
Papuans and its exposure to the development Invited International conference
Kaihei Koshio and Akiko Tsuru
The Sixth Biennial Conference of East Asian Environmental History 2021.09
Event date： 2021.09
Language：English Presentation type：Oral presentation (general)
-
パルカットを用いたスギ花粉飛散防止技術について Invited International conference
小塩海平
日本花粉学会第62回大会 2021.09
Event date： 2021.09
Language：Japanese Presentation type：Oral presentation (general)
-
The physiological and morphological differences in normal and puffed dates fruits Invited International conference
Kaihei Koshio, Naoki Terada, Atsushi Sanada and Eljiati Abdelazize
International Congress on Dates 2021.08
Event date： 2021.08
Language：English Presentation type：Oral presentation (general)
-
高温下におけるトマトトーン（４－CPA）の散布がトマト（Lycopersicon esculentum Mill.）の生殖生長および果実品質に及ぼす影響 International conference
小塩海平、九野里寛子、篠原卓、岩堀修一、高橋久光、P.M.Hanson、Yang Ray-yu、J-Tsu Chen
日本熱帯農業学会第103回講演会講演要旨集 （玉川大学農学部） 2008.03
Event date： 2008.03
Language：Japanese Presentation type：Oral presentation (general)
AVRDCで選抜育種した耐暑性トマト6品種を用い、トマトトーンが生殖生長及び果実品質に及ぼす影響について報告した。
-
ラッカセイ（Arachis Hypogaea L.）殻で作成したボカシ肥の物理・化学的特性および施用効果の評価 International conference
篠原卓、本間華世、小塩海平、岩堀修一、高橋久光
日本熱帯農業学会第103回講演会講演要旨集 （玉川大学農学部） 2008.03
Event date： 2008.03
Language：Japanese Presentation type：Oral presentation (general)
熱帯・亜熱帯で入手可能なラッカセイ殻でボカシ肥を作成し、野菜の生育に有効であることを報告した。
Committee Memberships 【 display / non-display 】
-
東南アジア国際農学会（ISSAAS） 編集委員長
2015.09
Committee type：Academic society
Basic stance of industry-university cooperation 【 display / non-display 】
-
格差社会を助長するような産学連携には反対です
Attractiveness of Research 【 display / non-display 】
-
学生も教員も一緒に学べる環境作りに励みたい.