Chagyo Kenkyu Hokoku (Tea Research Journal)

Chagyo Kenkyu Hokoku (Tea Research Journal)

Published by Japanese Society of Tea Science and Technology

1,830 registered articles
(updated on February 17, 2026)

Online ISSN : 1883-941X
Print ISSN : 0366-6190
ISSN-L : 0366-6190

JOURNAL PEER REVIEWED FREE ACCESS

2025 Volume 2025 Issue 139

Development of Plucked New Shoot Yield and Components in Tea Leaves Estimation Technology Using a Portable NDVI Measuring Device (GreenSeeker 2) Kazuya Hasegawa, So Furuya, Toshikazu Suzuki, Hideyuki Katai
Effect of Removal by Pruning and Mortality Factors during the Larval Stage of Tea Harming Mahasena aurea (Butler) (Lepidoptera, Psychidae) Koji Yamashita
Automated Field Photography and Cloud-Based System to Suggest Optimal Insecticide Application Timing for the Oriental Tea Tortrix, Homona magnanima Diakonoff (Lepidoptera: Tortricidae) Ken Kudo, Kazuya Oki, Takaaki Goto, Maki Yoshida, Atsushi Takahashi

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Most viewed articles (January 2026)

1

Contents of Individual Tea Catechins and Caffeine in Japanese Green Tea

Released on J-STAGE: July 31, 2009 | Volume 1996 Issue 83 Pages 21-28

Tetsuhisa GOTO, Hitoshi NAGASHIMA, Yuko YOSHIDA, Masaaki KISO
2

Matcha: Quality and Health Benefits

Released on J-STAGE: January 01, 2021 | Volume 2018 Issue 126 Pages 1-8

Hideki Horie
3

Microbiological Contamination of the Tea Extract Prepared with Cold Water

Released on J-STAGE: January 01, 2019 | Volume 2016 Issue 122 Pages 21-25

Kiyo Okazaki
4

Sensory Evaluation of Matcha

Released on J-STAGE: January 01, 2025 | Volume 2022 Issue 134 Pages 31-38

Hiroaki Murakami
5

A History of Catechin Chemistry with Special Reference to Tea Leaves

Released on J-STAGE: December 09, 2011 | Volume 2009 Issue 107 Pages 107_1-107_18

Saijo Ryoyasu, Miyuki Katoh

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