Research activity information

• Mar. 2024 園芸学会奨励賞, ブドウの発育への温暖化の影響評価と発育予測モデルの開発に関する研究

  上森真広


• Oct. 2017 日本造園学会関西支部, 平成29年度日本造園学会関西支部賞, 近畿地方における企業の森づくり制度の現状と課題

  小池貴之, 小林徹哉, 上森真広, 大野朋子

• Impact Evaluation of Climate Change on Spring Phenology in Grapevines and Development of Phenology Models Based on Long-term Records

  Masahiro Kamimori

  Japanese Society for Horticultural Science, Jan. 2026, The Horticulture Journal, 95(1) (1), 1 - 9, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Predicting budbreak dates for ‘Delaware’ grape considering chilling and heat requirements using PhenoFlex

  Masahiro Kamimori, Akihiro Hosomi

  Elsevier BV, Feb. 2025, Ecological Modelling, 501, 110985, English

  [Refereed]

  Scientific journal


• Evaluation of Chilling and Heat Requirements for the Budbreak of Delaware Grape in Osaka, Japan

  Masahiro Kamimori, Akihiro Hosomi

  American Society for Enology and Viticulture, May 2024, American Journal of Enology and Viticulture, 75(1) (1), 0750011, English

  [Refereed]

  Scientific journal


• 長期観測データに基づいたブドウ‘デラウェア’の発育への温暖化の影響評価と発育予測モデルの開発に関する研究

  上森 真広

  Jan. 2023, 京都大学大学院農学研究科学位論文, Japanese

  Doctoral thesis


• Prediction of Developmental Changes due to Climate Change in ‘Delaware’ Grapes in Osaka, Japan, based on Simulated Data

  Masahiro KAMIMORI, Kazuya HIRAMATSU

  Japan International Research Center for Agricultural Sciences, Oct. 2022, Japan Agricultural Research Quarterly: JARQ, 56(4) (4), 389 - 398, English

  [Refereed]

  Scientific journal


• Evaluation of Ceratocystis Canker Resistance, Vegetative Growth, and Fruit Production of ‘Masui Dauphine’ Fig (Ficus carica) Grafted on ‘Reikodai 1 go’ BC1 of an Interspecific Hybridization of F. carica and F. erecta

  Masahiro Kamimori, Takeshi Isobe, Hiroshi Yakushiji

  Japanese Society for Horticultural Science, Jul. 2022, The Horticulture Journal, 91(3) (3), 337 - 344, English

  [Refereed]

  Scientific journal


• Effect of high-dose 290 nm UV-B on resveratrol content in grape skins.

  Tomohiro Tsurumoto, Yasuo Fujikawa, Yushi Onoda, Masahiro Kamimori, Kazuya Hiramatsu, Hideo Tanimoto, Daisaku Ohta, Atsushi Okazawa

  UV-C irradiation increases resveratrol content in grape skins, but it reaches a maximum at a certain UV-C dose. In contrast, UV-B has a weak resveratrol-enhancing effect at low doses, but it has not been investigated at high doses. In this study, we investigated the effect of high-dose UV-B on resveratrol contents in grape skins. Irradiation of Muscat Bailey A with 290 nm UV-B LED at 22 500 and 225 000 µmol m-2 increased the resveratrol contents in the grape skins by 2.1- and 9.0-fold, respectively, without significant increases in other phenolic compounds. The effect was also confirmed for 2 other cultivars: Shine Muscat and Delaware. Transcriptome analysis of the grape skins of Muscat Bailey A immediately after irradiation with UV-B at 225 000 µmol m-2 showed that genes related to biotic and abiotic stresses were upregulated. Hence, it was suggested that high-dose UV-B irradiation induces a stress response and specifically activates resveratrol biosynthesis.

  Mar. 2022, Bioscience, biotechnology, and biochemistry, 86(4) (4), 502 - 508, English, International magazine

  [Refereed]

  Scientific journal


• Estimation of Leaf Emergence in 'Delaware' Grape from Daily Mean Temperature to Predict the Optimal Timing for Gibberellic Acid Application to Achieve Seedlessness

  Masahiro Kamimori, Yuka Miwa, Takeshi Isobe, Akihiro Hosomi

  The number of leaves in 'Delaware' grape is an excellent indicator to determine the optimal timing for gibberellic acid (GA₃) application to fruit clusters to induce seedless berries. To predict the optimal timing for GA₃ application to 'Delaware' grape, we aimed to develop a method to estimate the accumulated leaf number (LN) on the second shoot (which grows from the second dormant bud from the end of the fruiting mother shoot) from the air temperature. This was undertaken using leafing data from a vineyard in Osaka, Japan from 1987 to 2019. Base temperature (Tb, °C), ranging from −2.5 to 12.5°C with step increases of 2.5°C, was estimated using the coefficient of regression determination (R²) between LN and effective accumulative temperature (EAT, °C·day) and two types of root mean square error (RMSE) (RMSE of LN and RMSE of the day when LN reached 10.0 leaves). The LN showed a good fit in linear regression with EAT at every Tb (−2.5 to 12.5°C); in particular, a Tb of 7.5°C yielded the highest R² and the lowest RMSE. From these results, we determined that the Tb for leaf emergence of 'Delaware' grape was 7.5°C. We then compared the estimation accuracy in predicting leaf emergence using EAT (Tb of 7.5°C) (proposed method) and constant leaf emergence rate per day of 0.36 leaves·day⁻¹ (conventional method). As the RMSE when using the proposed method was lower than the RMSE when using the conventional method, the proposed method was more suitable to predict of optimal timing for GA₃ application than the conventional method. The findings of this study could be used to predict the optimal timing for GA₃ application with high accuracy using LN on the measurement date and forecast values for temperature. Furthermore, the coefficient of the developed equation suggests that the 'Delaware' grape develops 4.0 leaves per EAT of 100°C·day with a Tb of 7.5°C.

  The Japanese Society for Horticultural Science, Apr. 2021, The Horticulture Journal, 90(2) (2), 181 - 189, English

  [Refereed]

  Scientific journal


• Models for Predicting Dates of Budding and Full Bloom of 'Delaware' Grape Based on the Daily Average Temperature

  Kamimori Masahiro, Miwa Yuka, Isobe Takeshi, Hosomi Akihiro

  In this study, we aimed to develop a model for predicting dates of budding and full bloom of 'Delaware' grape under open field conditions based on the daily average temperature. To predict budding and full bloom dates of 'Delaware' grape, we analyzed field data from 1963 to 2019, with two methods adopted for the growth simulation model: accumulated temperature method and developmental rate (DVR) method. Strong negative correlations between the number of days for germination and temperature and the number of days for flowering and temperature were detected. The DVR method (starting date of February 21) showed the lowest Root Mean Square Error (RMSE) = 2.4 days for the prediction of budding dates. The RMSE of the DVR method = 2.1 days was the lowest for the prediction of full bloom dates. The findings of this study suggest that the developmental stages of grape can be predicted with practical accuracy by adopting an appropriate growth simulation model of targeted developmental stages.

  THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE, 2020, Horticultural Research (Japan), 19(2) (2), 175 - 181, Japanese

  [Refereed]

  Scientific journal


• An Experimental Study of a Simple Sampling Method for Determining the Optimal Timing for Gibberellin Application to Field-Grown 'Delaware' Grape from the Number of Leaves

  Kamimori Masahiro, Miwa Yuka, Isobe Takeshi, Hosomi Akihiro

  To develop a simple method to determine the optimal timing for the application of gibberellin （GA3） to fruit clusters of 'Delaware' grape in the field from the number of leaves using the shoot in the different positions （numbered from the tip of the bearing mother shoot）. Using 'Delaware' grape leafing data from 1987 to 2018, we analyzed the relationship between the shoot position on the bearing mother shoot and the average number of leaves per shoot on the day when the average number of leaves per shoot in all shoots reached 9.5, which is used as an indicator for the timing of GA3 application in Osaka Prefecture, Japan. The average number of leaves on the day based on the average number of total shoot leaves was the largest on the first shoot as counted from the tip of the bearing mother shoot and decreased gradually toward its base. In view of practical considerations, we analyzed the relationship between the numbers of samples of the first shoot and second shoot（ second shoot from the tip of the bearing mother shoot） and the error of estimation of the number of leaves. The results suggested that under the weather conditions in Osaka Prefecture, the optimal timing for GA3 application could be determined from sampling 8 first shoots as the day on which the average number of leaves exceeded 10.5, or from 8 second shoots as the day on which it exceeded 10.0.

  Western Region Agricultural Research Center, National Agricultural and Food Research Organization, 2020, New Kinki Chugoku Shikoku Agricultural Research, 3(0) (0), 36 - 45, Japanese

  [Refereed]

  Scientific journal


• Relationships between Changes in Air Temperature and Development of 'Delaware' Grape for the Past 48 Years in Habikino, Osaka, Japan

  Kamimori Masahiro, Miwa Yuka, Isobe Takeshi, Hosomi Akihiro

  To understand the influence of yearly changes in air temperature on the development of grapes, we analyzed the records of air temperature and phenological events (budding, blooming) of 'Delaware' grape under open field conditions from 1963 to 2010 in Habikino, Osaka Prefecture, Japan using a generalized linear model (GLM) and model selection with Akaike Information Criterion (AIC). In this study area, the average temperature tended to rise over the 48 years. The dates of budding and full bloom became earlier. The average temperatures in February, March, and April were important factors influencing the dates of budding based on the GLM using AIC. This suggested that the dates of budding became earlier because of yearly temperature increases in February and March. The average temperatures in April and May were important factors influencing the dates of full bloom based on the GLM using AIC. This suggested that the dates of full bloom became earlier because of the earlier dates of budding and yearly temperature increase in May. In conclusion, the budding and blooming of 'Delaware' grape in Habikino, Osaka Prefecture have accelerated over the past 48 years: budding has been influenced by the yearly temperature increases February and March, and blooming has been influenced by the earlier of budding and yearly temperature increase in May.

  THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE, 2019, Horticultural Research (Japan), 18(2) (2), 133 - 138, Japanese

  [Refereed]

  Scientific journal


• Tree seedling establishment after clear-cutting of bamboo in bamboo forests and mixed forests of bamboo and broad-leaved trees

  上森 真広, 幸田 良介, 奥田 史郎

  関西自然保護機構, 2019, 地域自然史と保全 = Bulletin of Kansai Organization for Nature Conservation, 41(1) (1), 23 - 36, Japanese

  [Refereed]

  Scientific journal


• 空中写真判読による竹林の分布解析手法の開発

  上森 真広, 山本 優一, 土井 裕介

  Mar. 2018, 公立林業試験研究機関 研究成果選集, 15, 21 - 22, Japanese

  [Refereed]

  Research institution


• The Fallen Tree Damages in Urban Area by Typhoon No. 21 (2018):In the Case of Research Institute of Environment, Agriculture andFisheries, Osaka Prefecture

  Kamimori Masahiro, Yamamoto Yuichi

  Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, 2018, Bulletin of Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, 5(0) (0), 1 - 3, Japanese

  [Refereed]

  Research institution


• Changes of the damage at the first place damaged by Japanese Oak Wilt in Osaka prefecture : Result for 6 years from the next year the damage occurred

  小林 徹哉, 上森 真広, 土井 裕介, 幸田 良介, 辻野 智之, 馬場 玲子

  応用森林学会, Aug. 2016, 森林応用研究 = Applied forest science, 25(2) (2), 13 - 16, Japanese

  [Refereed]

  Scientific journal


• Initial growth characteristics of native invasive tree Litsea citriodora range-expanding in the Sennan district, Osaka Prefecture, Japan

  上森 真広, 奥田 史郎, 幸田 良介

  関西自然保護機構, Jun. 2016, 地域自然史と保全 = Bulletin of Kansai Organization for Nature Conservation, 38(1) (1), 67 - 76, Japanese

  [Refereed]

  Scientific journal


• The mammal fauna detected by camera traps in Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture

  Koda Ryosuke, Tsujino Tomoyuki, Miwa Yuka, Kamimori Masahiro

  Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, 2016, Bulletin of Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, 3(0) (0), 9 - 11, Japanese

  [Refereed]

  Research institution


• Changes in light condition and undergrowth after thinning in a conifer plantation forest (Cryptomeria japonica and Chamaecyparis obtuse) in Osaka prefecture

  Kamimori Masahiro, Kobayashi Tetsuya, Tsujino Tomoyuki, Koda Ryosuke

  Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, 2015, Bulletin of Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, 2(0) (0), 16 - 18, Japanese

  [Refereed]

  Research institution

• 広がる竹林をどうしよう？ 研究所の取組み課題のご紹介

  上森真広

  Mar. 2018, 平成29年度林業広報誌「山」

• 農業技術大系・果樹編（追録第37号）

  上森真広

  Contributor, 第1、第2新梢展葉数によるデラウェアの1回目ジベレリン処理適期の把握, 農山漁村文化協会, Jun. 2022


• 広がる竹林をどうしよう?という時に : 放置竹林の把握と効率的な駆除技術

  鳥居, 厚志, 上村, 巧

  森林研究・整備機構森林総合研究所関西支所, Feb. 2018, Japanese, ISBN: 9784905304814

• 3D Gaussian Splatting による棚栽培ブドウの広域ビュー生成と長梢剪定作業の記録

  西山総一郎, 山田愛華, 上森真広, 山根久代, 田尾龍太郎

  園芸学会令和8年度春季大会, Mar. 2026, Japanese

  Oral presentation


• ブドウの発育への温暖化の影響評価と発育予測モデルの開発

  上森真広

  第3回農業×気象講演会, Sep. 2025, Japanese

  [Invited]

  Public discourse


• ブドウ果実の成熟後期における着色特性と内生ABA含量に関する研究

  王逸萌, 片山礼子, 高居恵愛, 上森真広, 及川彰, 石橋美咲, 田尾龍太郎

  園芸学会令和7年度春季大会, Mar. 2025, Japanese

  Oral presentation


• イチジク株枯病真性抵抗性台木‘励広台1号’に接いだ‘桝井ドーフィン’の幼木時の樹体生育と果実品質

  上森真広, 磯部武志, 薬師寺博

  園芸学会令和6年度秋季大会, Nov. 2024, Japanese

  Poster presentation


• 長期観測データを活用したブドウ‘デラウェア’の発育予測モデルの開発

  上森真広

  令和6年度近畿中国四国農業試験研究推進会議果樹推進部会果樹研究会, Jul. 2024

  [Invited]

  Invited oral presentation


• ブドウの発育への温暖化の影響評価と発育予測モデルの開発に関する研究

  上森真広

  園芸学会令和6年度春季大会, Mar. 2024, Japanese

  [Invited]

  Invited oral presentation


• 株枯病抵抗性台木励広台1号の栽培試験について

  上森真広

  いちじく産地改革フォーラム, Dec. 2023

  [Invited]

  Public discourse


• 植物のUV-B応答に対するUV-LEDの有用性

  鶴本智大, 藤川康夫, 斧田優志, 上森真広, 平松和也, 谷本秀夫, 太田大策, 岡澤敦司

  第39回日本植物バイオテクノロジー学会, Sep. 2022


• 「桝井ドーフィン」を接ぎ木した際の栽培特性の把握

  上森真広

  野生種イヌビワとの種間交雑体を利用したイチジク株枯病抵抗性台木新品種「励広台1号」の開発, Nov. 2021


• 気温予報を活用したぶどう「デラウェア」のジベレリン処理適期予測

  上森真広

  第39回近畿地区気候情報連絡会, Nov. 2021

  [Invited]

  Invited oral presentation


• イチジクとイヌビワの種間交雑体BC1のイチジク株枯病に対する抵抗性の評価：複数菌株を用いた幼苗新梢基部への株枯病菌有傷接種試験

  森田剛成, 軸丸祥大, 薬師寺博, 磯部武志, 上森真広, 野方仁, 池上秀利

  令和2年度日本植物病理学会関西部会, Nov. 2020


• 温暖化がぶどうの発育に及ぼす影響と気候予測データを用いた予測

  上森真広

  気象情報を味方につける！最新の気象予測技術とぶどう栽培への応用, Jan. 2020


• 気象予測データを利用したブドウの発育予測

  上森真広

  第37回近畿地区気候情報連絡会, Oct. 2019

  [Invited]


• 温暖化がぶどう栽培に及ぼす影響と対策技術

  上森真広

  第36回近畿地区気候情報連絡会, Oct. 2018

  [Invited]


• モウソウチク放置竹林伐採後における再生タケの刈り取り処理と再生量の変化

  奥田史郎, 上森真広

  第129回日本森林学会大会, Mar. 2018, Japanese

  Poster presentation


• UAV空撮とSfMによる木竹混交林の林分構造推定

  上森真広, 山本優一

  第128回日本森林学会大会, Japanese

  Poster presentation


• ブドウ‘デラウェア’園における堆肥および肥料の局所施用が土壌化学性および樹体生育に及ぼす影響

  三輪由佳, 上森真広, 磯部武志, 佐野修司, 谷秀樹, 山口英夫, 池永恭子, 内山知二

  日本土壌肥料学会2016年度佐賀大会, Sep. 2016


• 高分解能衛星画像・マルチコプターによる空撮画像を用いた竹林分布推定手法の検討

  上森真広, 山本優一, 小林徹哉

  第127回日本森林学会大会, Japanese

  Poster presentation


• 大阪府におけるナラ枯れ被害の現状

  小林 徹哉, 上森 真広, 辻野 智之

  第126回日本森林学会大会, Japanese

  Poster presentation


• 大阪府泉南地域で分布拡大している国内外来種アオモジの初期成長特性

  上森真広, 幸田良介, 奥田史郎

  2015年度地域自然史と保全研究発表会, Mar. 2015, Japanese

  Poster presentation


• 放置竹林の樹種転換のための基礎調査

  小林 徹哉, 上森 真広, 奥田 史郎

  第125回日本森林学会大会, Japanese

  Poster presentation

• 園芸学会


• 関西自然保護機構

• 虹の雫（品種名ポンタ）でアブサップ液剤の適用拡大！

  May 2025

  生産者向けに使用方法について分かりやすくまとめた案内


• 着色促進に効果的なぶどう主枝への環状はく皮～作業風景～

  May 2018, Youtube

  ぶどう主枝への環状はく皮作業風景の動画です。環状はく皮はぶどうの樹皮を環状に剥ぐことで、光合成産物の根への転流を阻害し、果房への転流を促す技術です。環状はく皮によって、近年問題視されている大粒系ぶどうの着色不良を改善できることが報告されています。はく皮幅は5mm程度で十分です。環状はく皮の適期は品種により若干異なりますが巨峰、安芸クイーンでは満開後30～35日とされています。 key word:環状剥皮;girdling;grape;Vitis

• ブドウ休眠芽の遺伝子発現に着目にして休眠を考慮した発芽予測モデルの開発

  上森真広

  日本学術振興会, 科学研究費助成事業, 若手研究, 神戸大学, Apr. 2026 - Mar. 2030


• イチジク株枯病抵抗性台木「励広台1号」の普及に向けた「桝井ドーフィン」接ぎ木樹の栽培特性の把握と現地実証

  上森真広

  大阪府信用農業協同組合連合会 研究支援事業, Jul. 2023 - Mar. 2026, Principal investigator


• 野生種イヌビワとの種間交雑体を利用したイチジク株枯病抵抗性台木新品種の開発

  農林水産省, 農林水産業・食品産業科学技術研究推進事業実用技術開発ステージAタイプ, Apr. 2018 - Mar. 2022, Coinvestigator

  Competitive research funding


• 温暖化シナリオによる大阪府特産品ブドウ‘デラウェア’の発育の変動予測と適応策の検討

  上森真広

  大阪府信用農業協同組合連合会, 研究支援事業, Jul. 2020 - Mar. 2021, Principal investigator

  Competitive research funding


• 侵略的拡大竹林の効率的駆除法と植生誘導技術の開発

  農林水産省, 農林水産業・食品産業科学技術研究推進事業現場ニーズ対応型Bタイプ, (国研)森林研究・整備機構森林総合研究所、石川県林業試験場、(地独)大阪府立環境農林水産総合研究所、 島根県中山間地域研究センター、愛媛大学農学部, Apr. 2015 - Mar. 2018, Coinvestigator

  Competitive research funding

• トライ・やるウィーク（加西市立加西中学校2名）『ブドウの果実品質調査をやってみよう』

  兵庫県教育委員会

  Lecturer, 03 Jun. 2026

• 温暖化・猛暑でぶどう産地がピンチ!? ぶどうへの気候変動の影響

  Other than myself, ウェザーニュース, Oct. 2025

  Internet


• ブドウの発育に及ぼす温暖化の影響を解明 独自の発育予測モデルを開発

  Other than myself, 日報ビジネス株式会社, 隔月刊 地球温暖化, May 2025

  Paper


• 種なしデラウェアのジベ処理 1回目適期を高精度予測

  Other than myself, 日本農業新聞, Jul. 2021

  Paper


• ブドウ「デラウェア」の種なし処理 適期を気温から正確に予測

  Other than myself, 農業共済新聞, May 2021

  Paper


• 気候データ使い試験 ブドウ満開日高精度で予測 環状剥皮作業も動画で紹介

  Other than myself, 日本農業新聞, Feb. 2020

  Paper


• 森林への竹の侵入 初期伐採が効果

  Other than myself, 日本農業新聞, Jun. 2016

  Paper