Details of the Researcher

PHOTO

Manabu Nishiyama
Section
Graduate School of Agricultural Science
Job title
Assistant Professor
Degree
  • Doctor of Agriculture (Tohoku University)

Research History 3

  • 2007/04 - Present
    Graduate School of Agricultural Science, Tohoku University Assistant Professor

  • 1999/03 - 2007/03
    Graduate School of Agricultural Science, Tohoku University Research Associate

  • 1999/01 - 1999/03
    Faculty of Agriculture, Tohoku University Research Associate

Education 3

  • Tohoku University Graduate School, Division of Agriculture 農学

    - 1998/12/31

  • Tohoku University Graduate School, Division of Agriculture 農学

    - 1997/03

  • Tohoku University Faculty of Agriculture 農学科

    - 1995/03

Committee Memberships 13

  • 園芸学会東北支部 評議員

    2025/04 - Present

  • 日本農業気象学会 JAM研究論文審査委員

    2024/05 - Present

  • 北日本イチゴ集会 幹事

    2014/06 - Present

  • 園芸学会 The Horticulture Journal 研究論文審査委員

    2010/02 - Present

  • 園芸学会 園芸学研究論文審査委員

    2008/04 - Present

  • 園芸学会東北支部 会計幹事

    2023/04 - 2025/03

  • 園芸学会東北支部令和3年度研究発表会,公開シンポジウム 実行委員会 実行委員

    2019/08 - 2021/08

  • The 16th Japan Solanaceae Consortium senior staff writer

    2018/09 - 2019/09

  • 園芸学会東北支部 評議委員

    2013/04 - 2017/03

  • 園芸学会・「Horticulture in Japan 2006」出版編集委員会 委員

    2005/10 - 2006/08

  • 平成17年度園芸学会秋季大会実行委員会 会計幹事

    2004/09 - 2005/10

  • 園芸学会東北支部 会計幹事

    2001/04 - 2003/03

  • 園芸学会東北支部平成11年度研究発表会,公開シンポジウム 実行委員会 委員

    2001/01 - 2001/08

Show all ︎Show first 5

Professional Memberships 8

  • 北日本イチゴ研究会

  • 日本イチゴフォーラム

  • 日本農業気象学会

  • 園芸学会東北支部

  • Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists

  • International Society for Horticultural Science

  • American Society for Horticultural Science

  • Japanese society for horticultural science

︎Show all ︎Show first 5

Research Interests 9

  • fruit quality

  • floral initiation

  • high-temperature injury

  • synchrotron radiation analysis

  • plant hormone

  • everbearing strawberry

  • 植物成長調整物質

  • 形態学的解析

  • 園芸作物の器官分化の遺伝的・環境的要因

Research Areas 1

  • Environmental science/Agricultural science / Horticulture /

Papers 66

  1. Effects of high temperature on the fruit development and sugar concentration in everbearing strawberry cultivars

    Manabu Nishiyama, Yoshinori Kanayama

    Advances in Horticultural Science 39 (4) 261-268 2025/12/31

    Publisher: Firenze University Press

    DOI: 10.36253/ahsc-18310  

    ISSN: 0394-6169

    eISSN: 1592-1573

    More details Close

    In everbearing strawberry cultivars, understanding the effects of high temperature is crucial. Long-day everbearing cultivars are promoted for summer and autumn production whereas this is off-season for June-bearing varieties. This study investigated the effects of high temperature on the development and fruit quality of the everbearing cultivars Natsuakari and Dekoruju in a phytotron-simulating summer condition. Both cultivars showed a smaller number of flowering inflorescences at 30°C/25°C (day/night) compared to 20°C/15°C, indicating that flower bud development is sensitive to high temperatures. Fruit set rates were also negatively affected by the higher temperature. Fruit sugar composition of ‘Natsuakari’ fruits showed an increased sucrose concentration during the developmental stage from 75% colored fruit to 100% colored fruit. In the ripe fruit of ‘Natsuakari,’ the sugar content was measured higher due to greater amount of sucrose accumulation, whereas a remarkable decrease in the sucrose concentration was observed at 30°C/25°C temperature compared to 20°C/15°C. These results suggested that summer high temperatures negatively impacted flowering, fruit set, and sucrose content in everbearing cultivars, ultimately leading to reduced fruit production and quality. Additionally, the temperature effects varied between the two cultivars strawberry.

  2. QTL Analysis for Adventitious Rooting and Assessing the Phloem-to-xylem Ratio: Comprehensive Characterization of Adventitious Rooting in Apple Rootstocks Peer-reviewed

    Ryota Moritani, Shigeki Moriya, Takumi Yamada, Chihiro Akiyama, Hiroshi Iwanami, Manabu Nishiyama, Kazuhisa Kato, Yoshinori Kanayama

    The Horticulture Journal 94 (2) 211-221 2025/05

    DOI: 10.2503/hortj.szd-039  

    ISSN: 2189-0102

    eISSN: 2189-0110

  3. Effect of light quality of long-day treatments on flowering in Delphinium

    Nono SUGAWARA, Mei NUMAZAWA, Ryo ABE, Manabu NISHIYAMA, Kazuhisa KATO, Yoshinori KANAYAMA

    Journal of Agricultural Meteorology 79 (3) 85-94 2023

    Publisher: Society of Agricultural Meteorology of Japan

    DOI: 10.2480/agrmet.d-22-00037  

    ISSN: 0021-8588

    eISSN: 1881-0136

  4. Effects of light quality on plant development and fruit metabolism and their regulation by plant growth regulators in tomato

    Lingran Xiao, Tomoki Shibuya, Kazuhisa Kato, Manabu Nishiyama, Yoshinori Kanayama

    Scientia Horticulturae 300 111076-111076 2022/06

    Publisher: Elsevier BV

    DOI: 10.1016/j.scienta.2022.111076  

    ISSN: 0304-4238

  5. Effect of short-term temperature stress on fruit set and the expression of an auxin reporter gene and auxin synthesis genes in tomato

    Hikaru Ito, Yoshinori Kanayama, Tomoki Shibuya, Seedahmed A. Mohammed, Manabu Nishiyama, Kazuhisa Kato

    Scientia Horticulturae 300 111039-111039 2022/06

    Publisher: Elsevier BV

    DOI: 10.1016/j.scienta.2022.111039  

    ISSN: 0304-4238

  6. Characterization of the FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 Homolog SlFKF1 in Tomato as a Model for Plants with Fleshy Fruit

    Tomoki Shibuya, Manabu Nishiyama, Kazuhisa Kato, Yoshinori Kanayama

    INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 22 (4) 2021/02

    DOI: 10.3390/ijms22041735  

    eISSN: 1422-0067

  7. Characterization and Expression Analysis of the Ca2+/Cation Antiporter Gene Family in Tomatoes Peer-reviewed

    Kayoko Amagaya, Tomoki Shibuya, Manabu Nishiyama, Kazuhisa Kato, Yoshinori Kanayama

    PLANTS-BASEL 9 (1) 2020/01

    DOI: 10.3390/plants9010025  

    eISSN: 2223-7747

  8. Effect of Light Quality on Flowering in Everbearing Strawberry Cultivars Peer-reviewed

    Manabu Nishiyama1*, Hiromichi Yamazaki, Yoshinori Kanayama

    Horticultural Research (Japan) 19 (1) 49-54 2020/01

    Publisher: THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE

    DOI: 10.2503/hrj.19.49  

    ISSN: 1347-2658

    eISSN: 1880-3571

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    The effect of light quality on flowering in everbearing strawberry (Fragaria × ananassa Duch.), a long-day plant, was investigated under night illumination conditions. Two everbearing strawberry cultivars, ‘Natsuakari’ and ‘Suzuakane,’ were tested. Flowering was promoted under far-red light, but it was almost inhibited under red light at 30/25°C (day/night temperature) in a natural light type phytotron. In another treatment, plants were grown under night illumination in a glass house from September. In this case, flowering was reduced under red light conditions compared with under an incandescent lamp. In everbearing strawberry cultivation, flowering is markedly promoted and plants may die due to self-topping under high temperature and long-day conditions. However, the mortality rate due to self-topping was lower under red light in this study. These results reveal the flowering response of everbearing strawberry cultivars to red and far-red light under relatively high temperatures, and the possibility of using red light to maintain vegetative growth by regulating flowering.

  9. Effects of overnight radiation with monochromatic far-red and blue light on flower budding and expression of flowering-related and light quality-responsive genes in Eustoma grandiflorum Peer-reviewed

    Tomoki Shibuya, Takuma Takahashi, Shun Hashimoto, Manabu Nishiyama, Yoshinori Kanayama

    JOURNAL OF AGRICULTURAL METEOROLOGY 75 (3) 160-165 2019/07

    DOI: 10.2480/agrmet.D-18-00041  

    ISSN: 0021-8588

    eISSN: 1881-0136

  10. Promotion of Flowering by Bulb-type Three-color Mixed LEDs in Gypsophila paniculata L. Peer-reviewed

    Shibuya Tomoki, Nishiyama Manabu, Takahashi Takuma, Ohmura Satomi, Kanahama Koki, Kato Kazuhisa, Kanayama Yoshinori

    Horticultural Research (Japan) 18 (1) 53-58 2019

    Publisher: THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE

    DOI: 10.2503/hrj.18.53  

    ISSN: 1347-2658

    eISSN: 1880-3571

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    <p>Incandescent light bulbs are widely used in light culture to promote flowering in long-day cut flowers. However, alternative energy-efficient light sources need to be developed. This study evaluated the flowering-promoting effect of two bulb-type three-color LEDs on two Gypsophila paniculata cultivars. The LEDs are equipped with far red, red, and blue colors and can be attached to the socket of an incandescent light bulb. Regarding the number of days to flower budding, LEDs exerted a flowering-promoting effect equivalent to that of incandescent light bulbs. However, incandescent light bulbs were more effective compared with LEDs in terms of the number of days to flowering in one of the two cultivars and number of leaves at flowering in both cultivars. The LED use resulted in an equal or superior fresh weight, stem length, and number of inflorescence units as the cut flower quality than those achieved with incandescent light bulbs. Although there may be an influence of light quality other than the three colors on flowering, the potential of bulb-type three-color mixed LEDs with a marked energy-saving effect was shown for the promotion of flowering.</p>

  11. Physiological Mechanisms Accounting for the Lower Incidence of Blossom-end Rot in Tomato Introgression Line IL8-3 Fruit Peer-reviewed

    Hiroki Ikeda, Tomoki Shibuya, Manabu Nishiyama, Yoshihiro Nakata, Yoshinori Kanayama

    HORTICULTURE JOURNAL 86 (3) 327-333 2017/07

    DOI: 10.2503/hortj.OKD-015  

    ISSN: 2189-0102

    eISSN: 2189-0110

  12. Characterization of Flowering-related Genes and Flowering Response in Relation to Blue Light in Gypsophila paniculata Peer-reviewed

    Shibuya Tomoki, Murakawa Yuki, Nishidate Koji, Nishiyama Manabu, Kanayama Yoshinori

    The Horticulture Journal 86 (1) 94-104 2017

    DOI: 10.2503/hortj.MI-126  

    ISSN: 2189-0102

    eISSN: 2189-0110

  13. Dynamic Metabolic Regulation by a Chromosome Segment from a Wild Relative During Fruit Development in a Tomato Introgression Line, IL8-3 Peer-reviewed

    Hiroki Ikeda, Tomoki Shibuya, Shunsuke Imanishi, Hisashi Aso, Manabu Nishiyama, Yoshinori Kanayama

    PLANT AND CELL PHYSIOLOGY 57 (6) 1257-1270 2016/06

    DOI: 10.1093/pcp/pcw075  

    ISSN: 0032-0781

    eISSN: 1471-9053

  14. A novel strategy to produce sweeter tomato fruits with high sugar contents by fruit-specific expression of a single bZIP transcription factor gene Peer-reviewed

    G. H. M. Sagor, Thomas Berberich, Shun Tanaka, Manabu Nishiyama, Yoshinori Kanayama, Seiji Kojima, Koji Muramoto, Tomonobu Kusano

    PLANT BIOTECHNOLOGY JOURNAL 14 (4) 1116-1126 2016/04

    DOI: 10.1111/pbi.12480  

    ISSN: 1467-7644

    eISSN: 1467-7652

  15. Characterization of an uncharacterized aldo-keto reductase gene from peach and its role in abiotic stress tolerance Peer-reviewed

    Yoshinori Kanayama, Ryosuke Mizutani, Shino Yaguchi, Ayano Hojo, Hiroki Ikeda, Manabu Nishiyama, Koki Kanahama

    PHYTOCHEMISTRY 104 30-36 2014/08

    DOI: 10.1016/j.phytochem.2014.04.008  

    ISSN: 0031-9422

  16. Seasonal changes in abiotic stress tolerance and concentrations of tocopherol, sugar, and ascorbic acid in sea buckthorn leaves and stems Peer-reviewed

    Yoshinori Kanayama, Kazuyoshi Sato, Hiroki Ikeda, Tomoko Tamura, Manabu Nishiyama, Koki Kanahama

    SCIENTIA HORTICULTURAE 164 232-237 2013/12

    DOI: 10.1016/j.scienta.2013.09.039  

    ISSN: 0304-4238

    eISSN: 1879-1018

  17. Analysis of a tomato introgression line, IL8-3, with increased Brix content Peer-reviewed

    Hiroki Ikeda, Masahiro Hiraga, Kenta Shirasawa, Manabu Nishiyama, Koki Kanahama, Yoshinori Kanayama

    SCIENTIA HORTICULTURAE 153 103-108 2013/04

    DOI: 10.1016/j.scienta.2013.02.006  

    ISSN: 0304-4238

    eISSN: 1879-1018

  18. Analyses of early rough bark phenotype found in seedlings of a cross between the European pear 'Bartlett' and the Chinese pear 'Yali' Peer-reviewed

    Akiko Ogata, Akihiro Itai, Manabu Nishiyama, Hiroki Ikeda, Koki Kanahama, Yoshinori Kanayama

    SCIENTIA HORTICULTURAE 148 1-8 2012/12

    DOI: 10.1016/j.scienta.2012.09.010  

    ISSN: 0304-4238

    eISSN: 1879-1018

  19. Tolerance to salt stress and blossom-end rot in an introgression line, IL8-3, of tomato Peer-reviewed

    Ai Uozumi, Hiroki Ikeda, Masahiro Hiraga, Hitoshi Kanno, Masami Nanzyo, Manabu Nishiyama, Koki Kanahama, Yoshinori Kanayama

    SCIENTIA HORTICULTURAE 138 1-6 2012/05

    DOI: 10.1016/j.scienta.2012.01.036  

    ISSN: 0304-4238

    eISSN: 1879-1018

  20. Far-red Light Supplemented with Weak Red Light Promotes Flowering of Gypsophila paniculata Peer-reviewed

    Nishidate Koji, Kanayama Yoshinori, Nishiyama Manabu, Yamamoto Takeshi, Hamaguchi Yuki, Kanahama Koki

    Journal of the Japanese Society for Horticultural Science 81 (2) 198-203 2012

    DOI: 10.2503/jjshs1.81.198  

    ISSN: 1882-3351

    eISSN: 1880-358X

  21. Suppression of telomere-binding protein gene expression represses seed and fruit development in tomato Peer-reviewed

    Ryo Moriguchi, Kensuke Ohata, Koki Kanahama, Hideki Takahashi, Manabu Nishiyama, Yoshinori Kanayama

    JOURNAL OF PLANT PHYSIOLOGY 168 (16) 1927-1933 2011/11

    DOI: 10.1016/j.jplph.2011.05.009  

    ISSN: 0176-1617

  22. Flowering and expression of flowering-related genes under long-day conditions with light-emitting diodes Peer-reviewed

    Yoshimi Hori, Koji Nishidate, Manabu Nishiyama, Koki Kanahama, Yoshinori Kanayama

    PLANTA 234 (2) 321-330 2011/08

    DOI: 10.1007/s00425-011-1397-9  

    ISSN: 0032-0935

    eISSN: 1432-2048

  23. Relationship between MdMADS11 Gene Expression and Juvenility in Apple Peer-reviewed

    Hatsuda Yoshihito, Nishio Sogo, Komori Sadao, Nishiyama Manabu, Kanahama Koki, Kanayama Yoshinori

    Journal of the Japanese Society for Horticultural Science 80 (4) 396-403 2011

    DOI: 10.2503/jjshs1.80.396  

    ISSN: 1882-3351

    eISSN: 1880-358X

  24. Metabolic process of the C-14-sugars on the translocation pathways of cucumber plants Peer-reviewed

    Wataru Ohkawa, Yoshinori Kanayama, Naoko Daibo, Takahiro Sato, Manabu Nishiyama, Koki Kanahama

    SCIENTIA HORTICULTURAE 124 (1) 46-50 2010/02

    DOI: 10.1016/j.scienta.2009.12.009  

    ISSN: 0304-4238

    eISSN: 1879-1018

  25. Recent topics of research in the laboratory of horticultural science Peer-reviewed

    Koki Kanahama, Yoshinori Kanayama, Manabu Nishiyama

    The Tohoku Journal of Agricultural Research 60 (1-2) 27-31 2009/12/15

    Publisher: Graduate School of Agricultural Science, Tohoku University

    ISSN: 0040-8719

  26. Differences in Critical Photoperiod for Flower Bud Initiation among Everbearing Strawberry Cultivars Peer-reviewed

    NISHIYAMA Manabu, EBIHARA Yasuhito, KANAHAMA Koki

    Horticultural Research (Japan) 8 (1) 35-39 2009/01/15

    Publisher: THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE

    DOI: 10.2503/hrj.8.35  

    ISSN: 1347-2658

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    Four everbearing strawberry (Fragaria &times; ananassa Duch.) cultivars, &lsquo;Kaho&rsquo;, &lsquo;Ohishi-shikinari&rsquo;, &lsquo;Miyoshi&rsquo; and &lsquo;Yamato-shikinari&rsquo;, which were overwintered, were grown at day (6:00&ndash;18:00)/night (18:00&ndash;6:00) temperatures of 30/25&deg;C under 12-, 13-, 14- and 15-h photoperiods for 16 weeks. &lsquo;Yamato-shikinari&rsquo; was also grown under a 16-h photoperiod. Under such a high temperature condition, these cultivars were found to be qualitative long-day plants. Flower bud initiation was inhibited under 14-h or shorter photoperiod in &lsquo;Kaho&rsquo;, under 13-h or shorter in &lsquo;Ohishi-shikinari&rsquo;, under 12-h in &lsquo;Miyoshi&rsquo; and 15-h or shorter in &lsquo;Yamato-Shikinari&rsquo;. Non-chilled &lsquo;Kaho&rsquo; and &lsquo;Ohishi-shikinari&rsquo; plants were also tested. The photoperiods under which their flower bud initiation was inhibited were the same as those of overwintered plants. The critical photoperiod for flower bud initiation in everbearing strawberry plants grown under high temperature varied among cultivars.<br>

  27. Effect of Light Quality on Growth of Everbearing Strawberry Plants Peer-reviewed

    M. Nishiyama, K. Kanahama

    VI INTERNATIONAL STRAWBERRY SYMPOSIUM 842 151-154 2009

    ISSN: 0567-7572

  28. Effects of red and far-red fluorescent light on the growth of Gypsophila paniculata plants Peer-reviewed

    Keiko KATSUTA, Takayoshi MORIYAMA, Manabu NISHIYAMA, Yoshinori KANAYAMA, Koki KANAHMA

    Tohoku Journal of Agricultural Research 59 (1-2) 1-15 2008/11

    Publisher: Faculty of Agriculture, Tohoku University

    ISSN: 0040-8719

  29. Critical photoperiod for flower bud initiation in five everbearing strawberry cultivars Peer-reviewed

    M. Nishiyama, W. Ohkawa, K. Kanahama

    Tohoku Journal of Agricultural Research 59 (1-2) 17-27 2008/11

    Publisher: Faculty of Agriculture, Tohoku University

    ISSN: 0040-8719

  30. Effect of Light Quality on Growth of Everbearing Strawberry Plants

    Nishiyama, M, Kanahama, K

    Book of Abstracts VI International Strawberry Symposium ISHS 284 2008/03/03

  31. Sugar metabolic process of the 14C-photoassimilates on the translocation pathways of tomato plants. Peer-reviewed

    Wataru Ohkawa, Tian-Lai Li, Takamasa Seino, Manabu Nishiyama, Yoshinori Kanayama, Koki Kanahama

    Tohoku Journal of Agricultural Research 58 (1-2) 13-29 2007/11/15

  32. Critical photoperiod of flower bud initiation in everbearing strawberries 'Deco-Rouge' and 'Morioka No. 26'

    NISHIYAMA M., KANAHAMA K.

    園芸学研究 6 (2) 166-166 2007/09/29

    ISSN: 1881-8307

  33. イチゴの二季成り性品種‘Profusion’の生態特性

    西山 学, 金浜耕基

    園芸学会東北支部平成19年度大会研究発表要旨 11-12 2007/08/23

  34. Varietal differences in critical photoperiod for inflorescence production among day-neutral strawberry cultivars

    M. Nishiyama, K. Kanahama, Y. Ebihara

    Acta Horticulturae 761 207-213 2007

    Publisher: International Society for Horticultural Science

    DOI: 10.17660/ActaHortic.2007.761.26  

    ISSN: 0567-7572

  35. Varietal differences in critical photoperiod for inflorescence production among day-neutral strawberry cultivars Peer-reviewed

    M. Nishiyama, K. Kanahama, Y. Ebihara

    PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON ADVANCES IN ENVIRONMENTAL CONTROL, AUTOMATION AND CULTIVATION SYSTEMS FOR SUSTAINABLE, HIGH-QUALITY CROP PRODUCTION UNDER PROTECTED CULTIVATION 761 (761) 207-213 2007

    ISSN: 0567-7572

  36. Critical photoperiod for flower bud initiation in everbearing strawberry ‘Summerberry’ plants grown at high temperature Peer-reviewed

    M. Nishiyama, W. Ohkawa, Y. Kanayama, K. Kanahama

    Tohoku Journal of Agricultural Research 56 (3-4) 1-8 2006/03

    ISSN: 0040-8719

  37. Effects of temperature and photoperiod on inflorescence production in everbearing strawberry 'Natsuakari'

    NISHIYAMA M., YAMASAKI A., YANO T., KANAHAMA K.

    園芸学会雑誌別冊 74 (2) 434-434 2005/10/01

    ISSN: 0919-1917

  38. 多機能性新規ベリー・オビルピーハの特性と空中窒素固定能

    加藤一機, 西山 学, 金山喜則, 金浜耕基

    園芸学会東北支部平成16年度大会研究発表要旨 77-78 2004/08

  39. Acceleration of Flowering by Far-red Fluorescent Lamps in Gypsophila paniculata

    KATSUTA K., MORIYAMA T., NISHIYAMA M., KANAYAMA Y., KANAHAMA K.

    園芸学会雑誌別冊 72 (2) 453-453 2003/09/20

    ISSN: 0919-1917

  40. Effects of Far-red Light Intensity on the Growth of Gypsophila paniculata

    KATSUTA K., WATANABE N., NISHIYAMA M., KANAHAMA K.

    園芸学会雑誌別冊 72 (1) 280-280 2003/04/04

    ISSN: 0919-1917

  41. Effect of photoperiod on the development of inflorescences in everbearing strawberry 'Summerberry' plants grown at high temperature Peer-reviewed

    Nishiyama, M, Ohkawa W, Kanahama, K

    Tohoku Journal of Agricultural Research 53 (3-4) 43-52 2003/03

  42. イチゴのday-neutral型品種と四季成り性品種の生育に及ぼす高温下での日長の影響

    西山 学, 海老原康仁, 金浜耕基

    園芸学会東北支部平成14年度大会研究発表要旨 47-48 2002/08

  43. Effects of Red or Far-red Light and Red/far-red Ratio on the Shoot Growth and Flowering of Matthiola incana Peer-reviewed

    YOSHIMURA Tadahisa, NISHIYAMA Manabu, KANAHAMA Koki

    Journal of the Japanese Society for Horticultural Science 71 (4) 575-582 2002/07/15

    Publisher: THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE

    DOI: 10.2503/jjshs.71.575  

    ISSN: 0013-7626

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    The effects of red light and far-red light on the main shoot elongation and flowering of long-day plant stock [Matthiola incana (L.) R. Br.] were compared. During the day, plants were covered with the films which convert light quality of sunlight into different red/far-red photon flux ratio, whereas at night the plants were irradiated with compact self-ballasted fluorescent lamps of red or far-red light. Plants exposed to high red/far-red photon flux ratio during the day and red light at night, flowered late and developed short internodes, whereas the opposite occurred on plants grown under low red/far-red photon flux film during the day and irradiated with far-red light at night, i.e., flowering was advanced and internodes were elongated. The same findings were obtained regardless of planting date. However, the contrast between the two lighting conditions was especially apparent between autumn-sown, winter-cultivated plants, and summer-sown, autumn-cultivated plants because temperatures are colder during the winter flowering period. In this experiment, spring-sown, summer-grown plants had shorter internodes and more leaves ; anthesis was advanced compared with plants sown at other times of the year. This finding will contribute to the efficient production of long-day flowering plant because advancing flowering by far-red light improves the utilization of the horticultural facilities by hastening crop turnover and reducing heating costs in winter.

  44. Effects of red or far-red light and red/far-red ratio on the shoot growth and flowering of Matthiola incana Peer-reviewed

    T Yoshimura, M Nishiyama, K Kanahama

    JOURNAL OF THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE 71 (4) 575-582 2002/07

    ISSN: 1882-3351

    eISSN: 1880-358X

  45. Effects of R/FR Fluorescent Lamps on the Growth of Gypsophila paniculata

    KATSUTA K., NISHIYAMA M., KANAHAMA K.

    園芸学会雑誌別冊 71 (1) 168-168 2002/04/03

    ISSN: 0919-1917

  46. Effects of temperature and photoperiod on flower bud initiation of day-neutral and everbearing strawberries Peer-reviewed

    M Nishiyama, K Kanahama

    PROCEEDINGS OF THE FOURTH INTERNATIONAL STRAWBERRY SYMPOSIUM, VOLS 1 AND 2 567 (567) 253-255 2002

    ISSN: 0567-7572

  47. Effect of Supplemental Light Quality on Vegetative and Reproductive Growth of Everbearing Strawberry Plants Grown under High Temperature

    NISHIYAMA M., KANAHAMA K.

    Supplement to Journal of the Japanese society for horticultural science 70 (1) 130-130 2001/04/04

    ISSN: 0919-1917

  48. Day-neutral型イチゴ‘Hecker’の花芽形成が停止した株に及ぼす温度と日長の影響

    西山 学, 金浜耕基

    園芸学会東北支部平成12年度大会研究発表要旨 67-68 2000/08

  49. Differences of Critical Photoperiod on Flower Bud Initiation between Everbearing Strawberry Cultivars

    EBIHARA Y., NISHIYAMA M., KANAHAMA K.

    Supplement to Journal of the Japanese society for horticulture science 69 (1) 245-245 2000/03/26

    ISSN: 0919-1917

  50. Effect of temperature and photoperiod on the development of inflorescences in everbearing strawberry (Fragaria x ananassa Duch.) plants Peer-reviewed

    M Nishiyama, K Kanahama

    PROCEEDINGS OF THE XXV INTERNATIONAL HORTICULTURAL CONGRESS, PT 4 514 (514) 261-267 2000

    ISSN: 0567-7572

  51. 四季成り性イチゴ‘サマーベリー’の花芽形成が停止した株に及ぼす温度と日長の影響

    西山 学, 海老原康仁, 金浜耕基

    園芸学会東北支部平成11年度大会研究発表要旨 87-88 1999/08

  52. Effect of photoperiod on vegetative and reproductive growth of everbearing strawberry 'Summerberry' plants in dormant condition

    西山 学, 海老原康仁, 金浜耕基

    Supplement to the journal of the Japanese society for horticultural Science 68 (1) 248-248 1999/04/03

    ISSN: 0919-1917

  53. Interaction Between Temperature and Photoperiod on Inflorescence Development on Everbearing Strawberry 'Summerbery' Plant Peer-reviewed

    NISHIYAMA Manabu, OHKAWA Wataru, KANAHAMA Koki

    Journal of the Japanese Society for Horticultural Science 68 (1) 192-194 1999/01/15

    DOI: 10.2503/jjshs.68.192  

    ISSN: 0013-7626

    eISSN: 1880-358X

  54. Interaction between temperature and photoperiod on inflorescence development on everbearing strawberry 'Summerberry' plant Peer-reviewed

    M Nishiyama, W Ohkawa, K Kanahama

    JOURNAL OF THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE 68 (1) 192-194 1999/01

    ISSN: 1882-3351

    eISSN: 1880-358X

  55. Effects of temperature and photoperiod on the development of inflorescences in everbearing strawberry (Fragaria x ananassa Duch. )plants.

    M. Nishiyama, K. Kanahama

    Abstracts of XXV international horticultural congress 238 1998/08

  56. Induction of Reproductive Growth of Everbearing Strawberry Plants in Dormant Condition by Controlled Temperature and Photoperiod Peer-reviewed

    NISHIYAMA Manabu, OHKAWA Wataru, KANAHAMA Koki

    Journal of the Japanese Society for Horticultural Science 67 (2) 228-235 1998/03/15

    DOI: 10.2503/jjshs.67.228  

    ISSN: 0013-7626

    eISSN: 1880-358X

  57. Induction of reproductive growth of everbearing strawberry plants in dormant condition by controlled temperature and photoperiod Peer-reviewed

    M Nishiyama, W Ohkawa, K Kanahama

    JOURNAL OF THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE 67 (2) 228-235 1998/03

    ISSN: 1882-3351

    eISSN: 1880-358X

  58. Effect of photoperiod on the inflorescence development of everbearing strawberry plants grown under high temperature

    Nishiyama, M, K. Kanahama

    Supplement to Journal of the Japanese society for horticulture science 67 (Suppl1) 215-215 1998/03

  59. Critical photoperiod for flower development of everbearing strawberry 'Summerberry' plants grown under high-temperature

    NISHIYAMA M., KANAYAMA Y., KANAHAMA K.

    Supplement to the journal of the Japanese society for horticultural science 66 (2) 448-449 1997/08/29

    ISSN: 0919-1917

  60. Effect of plant age on the growth of everbearing strawberry'Summerberry'plants grown under controlled temperature and photoperiod

    Nishiyama, Ohkawa, Kanahama

    園芸学会東北支部平成9年度大会研究発表要旨 53-54 1997/08

  61. Comparison of young and mature plants of everbearing strawberry grown under controlled temperature and daylength

    NISHIYAMA M., OHKAWA W., KANAHAMA K.

    園芸学会東北支部平成8年度大会研究発表要旨 66 (1) 611-611 1997/03/29

    ISSN: 0919-1917

  62. Effect of daylength on vegetative and reproductive growth of everbearing strawberry plant grown under high-temperature

    NISHIYAMA M., OHKAWA W., KANAHAMA K.

    Supplement to the journal of the Japanese society for horticultural science 66 (1) 280-281 1997/03/29

    ISSN: 0919-1917

  63. 成苗期における四季成り性イチゴの栄養成長と生殖成長を誘導する温度と日長

    西山 学, 大川 亘, 金浜耕基

    園芸学会東北支部平成8年度大会研究発表要旨 45-46 1996/08

  64. Effects of temperature and photoperiod on the petiole elongation of everbearing strawberry

    NISHIYAMA M., OHKAWA W., KANAHAMA K.

    園芸学会東北支部平成7年度大会研究発表要旨 65 (1) 588-588 1996/03/29

    ISSN: 0919-1917

  65. Effects of temperature and photoperiod on the growth of everbearing strawberry

    NISHIYAMA M., OHKAWA W., KANAHAMA K.

    園芸学会東北支部平成7年度大会研究発表要旨 65 (1) 589-589 1996/03/29

    ISSN: 0919-1917

  66. Effects of high-tempreture and daylength on flower initiation in everbearing strawberry

    NISHIYAMA M., OHKAWA W., KANAHAMA K.

    園芸学会雑誌別冊 65 (1) 326-327 1996/03/29

    ISSN: 0919-1917

Show all ︎Show first 5

Misc. 43

  1. Research on the gene involving in flesh coloration mechanism and fruit quality in peach ’Akatsuki-hime’ with marble color flesh

    東条拓海, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  2. Fine mapping of adventitious rooting ability locus and analysis of candidate genes in apple rootstocks

    森谷亮太, 森谷茂樹, 森谷茂樹, 西山学, 加藤一幾, 金山喜則

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  3. Relationship between photoreceptor genes and flowering regulation by light quality in Delphinium

    橋本真弥, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  4. Study on mechanism of the promotion of flowering by long-day treatment with red light in Delphinium

    橋本真弥, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  5. Effect of L-ascorbic acid on the development of tomato blossom-end rot

    白川和希, 山田恵太朗, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  6. Role of blue light receptor S1FKF1 in the expression of tomato fruit ripening and coloring related genes

    GI K., 渋谷知暉, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  7. Effects of ozonated water at low concentration on lettuce growth under high temperature

    岡本堅喬, 反田絢也, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  8. Research on flesh coloration mechanism and fruit quality in peach cultivar ‘Akatsuki-hime’

    東条拓海, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  9. Involvement of ascorbic acid in the mechanism of tomato blossom rot development and transcriptome analysis

    白川和希, 山田恵太郎, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  10. Effects of low concentration ozonated water treatment on the antioxidant activity in broccoli sprouts

    反田絢也, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  11. The study on the promotion of adventitious root formation in tomato cuttings by low-concentration ozonated water treatment

    反田絢也, 高橋菜央子, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  12. The effect of ozonated water at low concentrations on lettuce growth and antioxidant ability under high temperature

    岡本堅喬, 反田絢也, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (1) 2025

    ISSN: 1881-8307

  13. Effects of low-concentration ozonated water foliar spraying on the early growth of grafted tomato seedlings

    反田絢也, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (2) 2025

    ISSN: 1881-8307

  14. Effect of postharvest near-infrared light exposure on changes in fruit firmness and sugar content in peaches

    東条拓海, 西山学, 秦亜矢子, 垣渕和正, 半谷智弘, 東谷勝, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (2) 2025

    ISSN: 1881-8307

  15. Study on carotenoid metabolism-related genes involved in marble colored flesh of ‘Akatsuki-hime’

    東条拓海, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 24 (2) 2025

    ISSN: 1881-8307

  16. RNA-seq analysis of Malus domestica ’M.9’ and M. prunifolia apple rootstocks with different adventitious rooting abilities

    森谷亮太, 森谷茂樹, 森谷茂樹, 西山学, 加藤一幾, 金山喜則

    園芸学研究 別冊 24 (2) 2025

    ISSN: 1881-8307

  17. Effects of plasma-irradiated solution to growth and antioxidant activity in komatsuna (II)

    XIAO L., 高島圭介, 金子俊郎, 千葉一美, 西山学, 高橋英樹, 金山喜則, 加藤一幾

    園芸学研究 別冊 23 (1) 2024

    ISSN: 1881-8307

  18. The attempt to utilize ozonated water at low concentration in a lettuce plant factory

    岡本堅喬, 反田絢也, 西山学, 金山喜則, 加藤一幾

    園芸学研究 別冊 23 (1) 2024

    ISSN: 1881-8307

  19. リンゴにおけるFZC様mRNAの解析

    加賀谷秀直, 渋谷知暉, 西山学, 金山喜則

    園芸学研究 別冊 17 (1) 479 2018/03/24

    ISSN: 1881-8307

  20. Morphological Changes during the Differentiation and Growth of Aerial Tubers in Chinese Yams (Dioscorea oppositifolia)

    Y. Yoshida, H. Takahashi, K. Hosogoe, H. Kanda, M. Nishiyama, K. Kanahama

    XXVIII INTERNATIONAL HORTICULTURAL CONGRESS ON SCIENCE AND HORTICULTURE FOR PEOPLE (IHC2010): INTERNATIONAL SYMPOSIUM ON QUALITY-CHAIN MANAGEMENT OF FRESH VEGETABLES: FROM FORK TO FARM 936 355-360 2012

    ISSN: 0567-7572

  21. Effects of Gibberellin on the Development of Aerial Tubers in Node Culture of Chinese Yam (Dioscorea oppositifolia 'Nagaimo')

    Y. Yoshida, K. Hosogoe, H. Takahashi, H. Kanda, M. Nishiyama, K. Kanahama

    XXVIII INTERNATIONAL HORTICULTURAL CONGRESS ON SCIENCE AND HORTICULTURE FOR PEOPLE (IHC2010): INTERNATIONAL SYMPOSIUM ON QUALITY-CHAIN MANAGEMENT OF FRESH VEGETABLES: FROM FORK TO FARM 936 283-288 2012

    ISSN: 0567-7572

  22. 長日性切り花-遠赤色光による開花促進

    Yoshinori Kanayama, Koki Kanahama, Manabu Nishiyama

    最新農業技術 花卉Vol.4 201-204 2012

    Publisher: 農文協

  23. 高糖度を示すトマト野生種からの染色体断片導入系統の解析

    平賀正浩, 池田裕樹, 魚住愛, 白澤健太, 西山学, 金浜耕基, 金山喜則

    園芸学研究 別冊 10 (2) 2011

    ISSN: 1881-8307

  24. Control of Flowering by Light Quality and its Mechanism(<Special Issue>Plant Production Applied by Lighting Technology)

    Kanayama Yoshinori, Suzuki Seiichi, Sato Takeyoshi, Nishiyama Manabu

    JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 95 (4) 205-210 2011

    Publisher: The Illuminating Engineering Institute of Japan

    DOI: 10.2150/jieij.95.205  

    ISSN: 0019-2341

    More details Close

    Flowering control with light quality is now attracting attention as LEDs become more popularized and genetic researches make more advancement. In some model plants used in experiments, a mechanism of flowering in long-day plants promoted by far-red light has been revealed. In addition, a research concerning effects of light quality in the flowering control of cut flowers conducted in Tohoku district reveled that the long-day treatment with far-red light is effective in promoting flowering of Eustoma and stock.

  25. 遠赤色光による長日性切り花類の開花促進

    Yoshinori, Kanayama, Koki Kanahama, Manabu Nishiyama

    農業技術体系・花卉編 226の34-37 2011

    Publisher: 農文協

  26. イチゴの四季成り性品種における生理生態的特性[5]

    Manabu Nishiyama

    Agriculture and Horticulture 84 (12) 1213-1215 2009/12/01

    Publisher: Yokendo, LTD.

    ISSN: 0369-5247

  27. イチゴの四季成り性品種における生理生態的特性[4]

    Manabu Nishiyama

    Agriculture and Horticulture 84 (11) 1137-1140 2009/11/01

    Publisher: Yokendo, LTD.

    ISSN: 0369-5247

  28. イチゴの四季成り性品種における生理生態的特性[3]

    Manabu Nishiyama

    Agriculture and Horticulture 84 (9) 949-954 2009/09/01

    Publisher: Yokendo, LTD.

    ISSN: 0369-5247

  29. イチゴの四季成り性品種における生理生態的特性[2]

    Manabu Nishiyama

    Agriculture and Horticulture 84 (8) 856-863 2009/08/01

    Publisher: Yokendo, LTD.

    ISSN: 0369-5247

  30. イチゴの四季成り性品種における生理生態的特性[1]

    Manabu Nishiyama

    Agriculture and Horticulture 84 (7) 763-768 2009/07/01

    Publisher: Yokendo, LTD.

    ISSN: 0369-5247

  31. ヨハニスタールクラインガルテンの歴史[3]

    大川 亘, 西山 学, 金山喜則, 金浜耕基

    農業および園芸 83 (11) 1235-1243 2008/11

    Publisher: 養賢堂

    ISSN: 0369-5247

  32. ヨハニスタールクラインガルテンの歴史[2]

    大川 亘, 西山 学, 金山喜則, 金浜耕基

    農業および園芸 83 (10) 1133-1140 2008/10

    Publisher: 養賢堂

    ISSN: 0369-5247

  33. ヨハニスタールクラインガルテンの歴史[1]

    大川 亘, 西山 学, 金山喜則, 金浜耕基

    農業および園芸 83 (9) 1029-1035 2008/09

    Publisher: 養賢堂

    ISSN: 0369-5247

  34. クラインガルテンの19世紀から20世紀までの歴史[6]

    金山喜則, 大川 亘, 西山 学, 金浜耕基

    農業および園芸 83 (8) 929-935 2008/08

    Publisher: 養賢堂

    ISSN: 0369-5247

  35. クラインガルテンの19世紀から20世紀までの歴史[5]

    金山喜則, 大川 亘, 西山 学, 金浜耕基

    農業および園芸 83 (7) 829-834 2008/07

    Publisher: 養賢堂

    ISSN: 0369-5247

  36. クラインガルテンの19世紀から20世紀までの歴史[4]

    金山喜則, 大川 亘, 西山 学, 金浜耕基

    農業および園芸 83 (6) 718-725 2008/06

    Publisher: 養賢堂

    ISSN: 0369-5247

  37. クラインガルテンの19世紀から20世紀までの歴史[3]

    金山喜則, 大川 亘, 西山 学, 金浜耕基

    農業および園芸 83 (5) 623-630 2008/05

    Publisher: 養賢堂

    ISSN: 0369-5247

  38. クラインガルテンの19世紀から20世紀までの歴史[2]

    金山喜則, 大川 亘, 西山 学, 金浜耕基

    農業および園芸 83 (4) 527-533 2008/04

    Publisher: 養賢堂

    ISSN: 0369-5247

  39. クラインガルテンの19世紀から20世紀までの歴史[1]

    金山喜則, 大川 亘, 西山 学, 金浜耕基

    農業および園芸 83 (3) 425-432 2008/03

    Publisher: 養賢堂

    ISSN: 0369-5247

  40. 四季成り性イチゴの花房発生の限界日長について

    西山 学

    農耕と園芸 59 (11) 52-55 2004/11/01

    Publisher: 誠文堂新光社

    ISSN: 1345-8833

  41. Vegetative and reproductive growth of dormant everbearing strawberry plants induced by contrelled temperature and plnetoperiod.

    Nishiyama Manabu, Ohkawa Wataru, Kanahama Koki

    Journal of the Japanese Society for Horticultwcal Science. 67 (2) 1998

    DOI: 10.2503/jjshs.67.228  

  42. Vegetative and reproductive growth of mature everbearing strawberry plants induced by temperature and daylength

    NISHIYAMA M., OHKAWA W., KANAHAMA K.

    66 (1) 610-610 1997/03/29

    ISSN: 0919-1917

  43. 高温と日長による四季成り性イチゴの花芽形成の制御

    西山 学, 金浜耕基

    今月の農業 40 (7) 40-44 1996/07

    Publisher: 化学工業日報社

    ISSN: 0912-1404

Show all ︎Show first 5

Books and Other Publications 11

  1. 園芸学 第2版

    金山喜則, 西山 学, 田淵俊人, 加藤一幾, 執行正義, 元木 悟, 髙田大輔, 古藤田信博, 立澤文見, 鈴木克己, 安場健一郎, 山内直樹, 菅谷純子, 居城幸夫, 小石鉄兵

    文永堂 2023/02/10

    ISBN: 9784830041440

  2. 野菜園芸学第2版

    金山喜則, 西山 学, 他

    文永堂出版 2020/01

  3. 農学実験テキスト2019

    西山 学, 他

    明倫社 2019/04

  4. 農学実験テキスト2016

    西山 学

    2016/04

  5. 農学実験テキスト2015

    西山 学

    2015/04

  6. ornamental horticulture

    Kanahama Koki, Kanayama Yoshinori

    Buneidou 2013/03/01

    ISBN: 9784830041259

  7. 植物工場とその照明技術

    金山喜則, 鈴木誠一, 佐藤武義

    サイエンス&テクノロジー株式会社 2009/12/22

    ISBN: 9784903413778

  8. 園芸学

    金浜耕基, 西山 学, 他

    文永堂出版 2009/04/10

    ISBN: 9784830041150

  9. 野菜園芸学

    金浜耕基, 西山 学, 他

    文永堂出版 2007/09/30

  10. HORTICULTURE IN JAPAN 2006

    Susumu Yazawa, Koki Kanahama

    2006/08

  11. A Manual of Experiments for Agriculture : third edition

    羽柴輝良, 金浜耕基

    ソフトサイエンス社 2002/04/30

Show all Show first 5

Presentations 19

  1. Effects of high temperature on flowering and sugar component in fruit in everbearing strawberry cultivars

    NISHIYAMA Manabu, KANAYAMA Yoshinori

    International Horticultural Congress 2026 2026/08/25

  2. AHC2023報告

    西山 学

    北日本イチゴ研究会 2023/09/08

  3. Effect of Temperature on Fruit Development and Sugar Composition in Everbearing Strawberry Cultivars

    Manabu Nishiyama, Yoshinori Kanayama

    The 4th Asian Horticultural Congress 2023/08/29

  4. イチゴの光関連研究について

    北日本イチゴ研究会 2017/08/18

  5. イチゴの光関連研究について

    日本イチゴフォーラム 2016/09/09

  6. イチゴの四季成り性品種‘‘すずあかね’’の成長と果実生産に及ぼす赤色光の影響

    西山 学, 金山喜則

    園芸学会 2015/09/26

  7. 高温条件下の四季成り性イチゴ‘なつあかり’の成長に及ぼす夜間電照における光質の影響

    西山 学, 金浜耕基

    園芸学会 2013/09/20

  8. 四季成り性イチゴ‘なつあかり’の成長に及ぼす秋冬季の夜間補光における光質の影響

    鳴海智也, 金山喜則, 金浜耕基

    園芸学会 2012/09/22

  9. ナガイモの新芋,茎,葉の糖と糖アルコール含量に及ぼすジベレリンの影響

    吉田康徳, 金山喜則, 金浜耕基

    園芸学会東北支部会 2012/08/21

  10. ヤマイモのむかごの分化・発育に関する組織形態学的研究

    吉田康徳, 高橋春實, 細越馨織, 神田啓臣, 金浜耕基

    園芸学会 2010/09/19

  11. トマトのアルドース-6-リン酸還元酵素遺伝子のストレス耐性における役割

    大畠健介, 谷口史乃, 金浜耕基, 金山喜則

    園芸学会 2010/09/19

  12. ナガイモの新芋,茎,葉の糖含量に及ぼすジベレリンの影響

    吉田康徳, 金山喜則, 金浜耕基

    園芸学会 2010/09/19

  13. Studies on the introgression line of tomato with increased fruit soluble solid. International-presentation

    Ikeda, H, Uozumi, A, Nishiyama, M, Kanahama, K, Kanayama, Y

    The 6th International Symposium on Solanaceae Genome Research 2010 2010/03/13

  14. A physiological role of the tomato V-PPase gene family in fruit development. International-presentation

    Mohammed, S.A, Nishio, S, Shiratake, K, Nishiyama, M, Ikeda, H, Yaguchi, S, Kanahama, K, Kanayama, Y

    The 6th International Symposium on Solanaceae Genome Research 2010 2010/03/13

  15. Promotion of flowerng by far-red light-emitting diodes in Gypsophila paniculata and other cut flowers International-presentation

    Kanayama, Y, Nishiyama, M, Suzuki, S, Sato, T

    6th International Symposium on Light in Horticulture 2009/11/16

  16. Effect of LED light on growth of everbearing strawberry plant International-presentation

    Manabu Nishiyama, Koki Kanahama

    6th International Symposium on Light in Horticulture 2009/11/16

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    本人の発表

  17. 第6回国際イチゴシンポジウム(スペイン)に参加して・世界のイチゴ研究の動向

    山口貴之

    北日本イチゴ研究会 2008/08/21

  18. 第6回国際イチゴシンポジウムの報告

    第6回日本イチゴフォーラム 2008/03/29

  19. 第27回国際園芸学会議および韓国におけるイチゴの最新情報

    吉田康徳, 片岡 園

    北日本イチゴ研究会 2006/08/24

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Research Projects 11

  1. 花卉の成長に及ぼす光質に関する研究 Competitive

    System: The Other Research Programs

    2002/04 - Present

  2. Study on the fruit production of everbearing strawberry Competitive

    1994/04 - Present

  3. Effect of environment on the inflorescence development of everbearing strawberry Competitive

    1994/04 - Present

  4. 可視化技術を活用した野菜における生理障害発生機構の解明

    金山 喜則, 高山 裕貴, 栗原 大輔, 加藤 一幾, 西山 学

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2025/04/01 - 2028/03/31

  5. 青色光によって開花と害虫を同時に制御する新たな栽培体系の開発に関する基盤研究

    西山 学

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(C)

    Category: 基盤研究(C)

    Institution: 東北大学

    2021/04/01 - 2024/03/31

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    慣行の切り花類の栽培では,開花調節は白熱電球によって行われていたが,白熱電球は寿命が短く,電気エネルギーの光エネルギーへの変換効率が低いことから,代替として長寿命で省電力の発光ダイオード(LED)を光源とする栽培が普及しつつある.しかし,白熱電球が幅広い波長の光を放射するのに対して,LEDは単色光を放射することから,代替することにより白熱電球で栽培した場合と異なる開花反応を示すことが予想される.また,白熱電球による開花調節の原理としては,フィトクロムに基づく赤色光と遠赤色光が制御要因であるとされている.一方,青色光も花成制御に関わっており,長日植物のモデル植物であるシロイヌナズナでは開花が促進されることが知られているが,LEDが普及するまでは栽培用に簡易に利用できる青色光の光源がなかったことから,開花調節に利用されてこなかった.そこで本課題ではまず,青色LEDによる開花調節に焦点を当てる. さらに,害虫防除は一般には農薬散布によって行われ,また,光の殺虫効果は波長が短いほど強く、紫外線BやCのように波長が短い紫外線だけにあるとされてきた.しかし最近,従来の常識に反して、可視光である青色光に種々の昆虫に対する致死効果が発見されたため,青色光による害虫防除を着想した.以上により,青色光による開花の制御機構を解明するとともに殺虫効果を検証し,青色LEDによって開花と害虫を同時に制御する全く新しい栽培体系を開発することを目的とする.

  6. Study of fruit quality of everbearing strawberry under high temperature

    Manabu Nishiyama

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2016/04/01 - 2019/03/31

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    In Japan, most strawberry cultivars grown for fruit production are June-bearing, single-cropping type strawberries. Unlike June-bearing strawberry cultivars, everbearing strawberry cultivars are suitable for summer cropping. However, fruits production decreases and fruits quality were poor under high temperature in summer. To improve the fruits production and fruits quality, everbearing strawberry plants were grown under high temperature and detailed factors which lower the production and quality were investigated. There is not a correlation between rate of fruit set and fruit quality. And good tasted fruits have high sucrose content even under high temperature.

  7. Isolation and utilization of everbearing genes in diploid strawberry

    NISHIYAMA Manabu, KANAYAMA Yoshinori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2010 - 2012

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    In plant, it is rare that long-day variety and short-day variety exist in the same species and strawberry (Fragaria ×ananassa Duch.) is one of such a plant. In strawberry cultivars, long-day cultivars can produce fruits through the year so this characteristic is called “everbearing". This characteristic is very important in agricultural production. Because strawberry is an octoploid plant, inheritance in strawberry is complex. Thus, we studied “everbearing" characteristic using F. vesca which is a diploid plant and model plant of Fragaria. Self- and cross-pollinated lines were bred and grown under long-day condition. Some of these lines exhibited everbearing characteristic.

  8. ナガイモの新芋の発育に関わるジベレリンと各種体内要因の消長 Competitive

    System: The Other Research Programs

    2009/04 - 2011/03

  9. Analysis of flowering mechanism of long-day plants for cut-flower with using a LED lamps

    KANAHAMA Koki, KANAYAMA Yoshinori, NISHIYAMA Manabu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2009 - 2011

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    The effects of light quality on the flowering of Gypsophila paniculata were investigated using light-emitting diodes (LEDs). Flowering and flower budding were observed under long-day conditions with far-red (FR), while no flowering was observed under short-day conditions. Promotion of flowering and flower budding was increased under FR supplemented with red R compared to FR alone. Although generally R inhibits flowering in long-day plants, a certain intensity of R may be necessary for effective promotion of flowering. In contrast, blue (B)supplementation of FR was not effective in inducing flowering and flower budding.

  10. 果菜類の花芽分化安定化技術に関する研究 Competitive

    System: Funded Research

    2006/04 - 2008/03

  11. 発光ダイオードを用いた長日性花卉の開花促進システムの開発

    金浜 耕基, 金山 喜則, 西山 学

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 萌芽研究

    Institution: 東北大学

    2007 - 2008

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    長日性花卉に白色光あるいは赤色光で長日処理しても開花が促進されない。この反応は、長日性のモデル植物であるシロイヌナズナにおいて遠赤色光受容体遺伝子PHYAのはたらきであることが示されている。そこで本研究では、人工光で栽培可能なモデル植物ではなく、太陽光の下で育てなければならない長日性花卉(シュッコンカスミソウ)を用いて、発光ダイオード(LED)による長日処理が開花を促進するかどうか調べた。その結果、開花は赤色光で促進されず遠赤色光で促進されたので、遠赤色光LEDはシュッコンカスミソウの長日処理光源として実用性が高いとみられた。遠赤色光による開花促進はPHYAの下流ではたらく花成早化遺伝子CONSTANSによって起こることが示されている。 そこで、平成20年度には、昼/夜の温度としてシュッコンカスミソウの適温域(25/20℃)を設けて、花芽形成と開花を実用的なレベルまで促進する遠赤色光の強さと照射時間を調べた。比較対照として、赤色光と青色光のLEDを用いた。また、遠赤色光による開光促進には、CONSTANSのシグナルがSOC1を介してはたらく経路が機能していると示唆された。さらに、シュッコンカスミソウを人工気象器内で栽培し、白色光を8時間照射した後、遠赤色光を8時間照射して、CONSTANSと、その下流で機能して開花を促進するFLOWERING LOCUS Tの相同遺伝子を単離し、塩基配列を確定した。以上の成果をまとめて研究発表し、論文、著書として著した。

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Teaching Experience 8

  1. 園芸生産システム学特論

  2. 観賞園芸学

  3. 自然科学総合実験

  4. 科学英語Ⅱ

  5. 現代における農と農学

  6. 植物生命科学コース学生実験

  7. 植物生産学実習Ⅱ

  8. 植物生産学実習Ⅰ

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Social Activities 2

  1. Northern Japan Strawberry Research Association

    2014/08 - Present

  2. イチゴ栽培の現状と展望

    2020/11/17 -

Other 4

  1. 夏秋栽培における施肥管理、生育調節等による生産安定化技術の開発

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    2011年の東日本大震災で被害を受けた地域の農業を再生するためのプロジェクトの一環で,宮城県の主要なイチゴの生産地であった亘理町などで,植物工場の導入が試みられている.このプロジェクトで,植物工場における夏採りイチゴの生産性を向上させるための環境条件を検討する.

  2. ジベレリン処理を多面的に活用したヤマノイモの画期的な生産技術の開発

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    これまでの成果として、ジベレリンを処理すると、むかごの着生を抑制することを通して、新芋の肥大を促進できることを初めて明らかにした。しかし、このジベレリン処理を実用的な生産技術とするためには、圃場レベルでジベレリン処理方法を開発する必要がある。そこで、本研究ではジベレリン処理の基礎的な知見を得て、現場への実証が計れる生産技術の開発を目指す。 (1)ジベレリンの処理後における体内消長の解明 これまでジベレリンの処理後における各種体内要因の消長は明らかにしてこなかった。しかし、各種体内要因の消長は、新芋の肥大や発育に及ぼす要因として重要である。そこで、ジベレリン処理後における各種体内要因の消長を解明していく。 (2)ジベレリンの処理後における新芋の肥大に関わる糖の役割(はたらき)の解明 ジベレリン処理すると新芋の肥大は促進されるが、この新芋の肥大に関わる糖の役割ついては明らかにしてこなかった。しかし、糖の役割は、新芋の収量や品質に関連する重要な知見である。そこで、ジベレリン処理後における新芋の肥大に関わる糖の役割を解明していく。

  3. 低コストで質の良い加工・業務用農産物の安定供給技術の開発

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    果菜類の収量を安定的に高めることを目的とし,本研究では,花芽形成の安定化技術を開発する.特に,日長反応に関わる光の質を重点的に取り上げる.光源として,消費電力が少なく,寿命が長い発光ダイオード(LED)を用いる.LEDが発する光は波長域が狭いため,光質の影響を検討しやすい長所もある.本研究では,LEDを用いて光質や照明方法が果菜類の花芽形成や果実生産に及ぼす影響について調査する.材料として長日植物であるイチゴの四季成り性品種を供試する.

  4. 寒冷地におけるイチゴの周年供給システムの確立

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    本課題では,四季成り性品種の生態特性について,花芽分化特性・休眠性・分枝性などの生態的・形態的特性の面から実用的形質についての解明を行う.