We investigated the effects of the intentional alternate bearing method on fruit weight, shoot structure, leaf photosynthetic ability, and carbohydrate content of the leaf in loquat (Eriobotrya japonica (Thunb.) Lindl.) cultivar ‘Mogi’ from 2019 to 2022. The treated (intentional alternate bearing) trees were divided into fruit-producing (fruiting shoot) and non-fruit-producing (non-fruiting shoot) areas, and compared with non-treated (conventional bearing) trees. Fruit weight was heavier on the treated trees than non-treated trees in all years, and this influenced the fruiting quantity per tree in 2019. In contrast, the numbers of fruit clusters and total shoots per tree were higher than on non-treated trees in 2021. This suggests that the intentional alternate bearing method for loquat can increase the fruit weight compared with the conventional bearing method. The shoot diameter and number of leaves were influenced by the interaction between treatments and years, with different effects between the groups. Although the total yield for three years was almost the same between treated and non-treated trees, the yearly yield increased progressively in treated trees. It is considered that the increase in the number of shoots from adventitious buds, resulting in an increased number of fruit clusters in treated trees. Photosynthetic rates, stomatal conductance, and transpiration rates of fruiting shoot leaves in treated trees were higher than those of non-fruiting shoots and non-treated trees. The Sum of the starch and sugar contents was the highest in non-fruiting shoot leaves of non-treated trees and the lowest in fruiting shoot leaves of treated trees. These findings suggest that the photosynthetic ability of the fruit-producing area was related to the increase in fruit weight, and carbohydrate accumulation in non-fruit-producing areas was related to fruiting and fruit quality.
"},{"@language":"ja","@value":"隔年結果性が強いビワにおいて，大果生産を目指した栽培方法を検討するため，3年間の隔年交互結実栽培が‘茂木’の果実重，結果枝の形状，個葉の光合成能および炭水化物蓄積に与える影響を調査した．結実管理には，樹内を結実させる枝（生産枝）区画と結実させない枝（遊休枝）区画に区別した隔年区と慣行管理した対照区を設けた．1果当たりの果実重は，どの年度も隔年区が対照区より大きかった．これは2019年度では着果負担による影響が考えられたが，2021年度では1樹当たりの供試果房数および総枝数が対照区より多く樹の着果負担が大きかったにも関わらず果実重が大きくなったことから，ビワを複数年継続的に隔年交互結実管理すると，果実重は慣行栽培より大きくなることが示唆された．結果枝の直径では処理区および年度で有意差が認められたが，結果枝の葉数では両項目で有意差は認められなかった．一方どちらも処理区および年度の交互作用を受け，隔年交互結実栽培による影響の受け方は両者で違いがみられた．3年間の累計収量は両区で同等の値を示したが，各年度の収量は，隔年区で年々増加する傾向を示した．これは不定芽由来の結果枝が増加し着房数が増えたためと考えられた．個葉の光合成能は，隔年区の生産枝葉で光合成速度，気孔伝導度および蒸散速度が対照区の両枝葉および隔年区の遊休枝葉より高かった．葉内のデンプン含量と全糖含量の合計値は，対照区の遊休枝葉で最も多く，隔年区の生産枝葉で最も少なかった．これは生産区画の光合成能は果実重増加に関係し，遊休区画では枝中に着房および果実肥大に関わる光合成産物が貯蔵されているためと推察された．
"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410022222476236160","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"西澤 優"},{"@language":"en","@value":"Nishizawa Yu"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Toso Orchard, Experimental Farm, Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部附属農場唐湊果樹園"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236166","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"香西 直子"},{"@language":"en","@value":"Kozai Naoko"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236162","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"宇都 量子"},{"@language":"en","@value":"Uto Ryoko"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Graduate School of Agriculture, Forestry and Fisheries, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学大学院農林水産学研究科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236167","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"福留 弘康"},{"@language":"en","@value":"Fukudome Hiroyasu"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Toso Orchard, Experimental Farm, Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部附属農場唐湊果樹園"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236032","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"廣瀬 潤"},{"@language":"en","@value":"Hirose Jun"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Toso Orchard, Experimental Farm, Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部附属農場唐湊果樹園"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236164","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"兒玉 真紀"},{"@language":"en","@value":"Kodama Maki"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Toso Orchard, Experimental Farm, Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部附属農場唐湊果樹園"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236163","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"山本 雅史"},{"@language":"en","@value":"Yamamoto Masashi"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236165","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"朴 炳宰"},{"@language":"en","@value":"Park Byoung-Jae"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部"}]},{"@id":"https://cir.nii.ac.jp/crid/1410022222476236161","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"遠城 道雄"},{"@language":"en","@value":"Onjo Michio"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Faculty of Agriculture, Kagoshima University"},{"@language":"ja","@value":"鹿児島大学農学部"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"13472658"},{"@type":"EISSN","@value":"18803571"},{"@type":"NDL_BIB_ID","@value":"000000410820"},{"@type":"ISSN","@value":"13472658"},{"@type":"LISSN","@value":"13472658"},{"@type":"NCID","@value":"AA11608561"}],"prism:publicationName":[{"@language":"en","@value":"Horticultural Research (Japan)"},{"@language":"ja","@value":"園芸学研究"},{"@language":"ja","@value":"園学研．"},{"@language":"en","@value":"Hort. 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(Japan)"},{"@language":"en","@value":"Engeigaku kenkyuu"}],"dc:publisher":[{"@language":"en","@value":"THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE"},{"@language":"ja","@value":"一般社団法人 園芸学会"}],"prism:publicationDate":"2025","prism:volume":"24","prism:number":"1","prism:startingPage":"45","prism:endingPage":"52"},"reviewed":"false","url":[{"@id":"http://id.ndl.go.jp/bib/033922783"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I033922783"},{"@id":"https://www.jstage.jst.go.jp/article/hrj/24/1/24_45/_pdf"}],"availableAt":"2025","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=%E3%83%87%E3%83%B3%E3%83%97%E3%83%B3%E5%90%AB%E9%87%8F","dc:title":"デンプン含量"},{"@id":"https://cir.nii.ac.jp/all?q=%E6%9E%9C%E5%AE%9F%E7%B3%96%E5%BA%A6","dc:title":"果実糖度"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%85%89%E5%90%88%E6%88%90%E9%80%9F%E5%BA%A6","dc:title":"光合成速度"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%85%A8%E7%B3%96%E5%90%AB%E9%87%8F","dc:title":"全糖含量"},{"@id":"https://cir.nii.ac.jp/all?q=brix","dc:title":"brix"},{"@id":"https://cir.nii.ac.jp/all?q=photosynthesis%20rate","dc:title":"photosynthesis rate"},{"@id":"https://cir.nii.ac.jp/all?q=starch%20content","dc:title":"starch content"},{"@id":"https://cir.nii.ac.jp/all?q=sugar%20content","dc:title":"sugar content"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1361981471153916160","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"NOTES ON SUGAR DETERMINATION"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204493569280","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"ビワの光合成と光および温度との関係とその季節変化"},{"@language":"en","@value":"The light and temperature dependence of photosynthesis and its seasonal variation in the loquat cultivar ‘Mogi’"},{"@language":"ja-Kana","@value":"ビワ ノ コウゴウセイ ト ヒカリ オヨビ オンド ト ノ カンケイ ト ソノ キセツ ヘンカ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206303123584","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Sugar Accumulation and Development of Loquat Fruit"},{"@language":"ja","@value":"ビワ果実の発育と糖の蓄積"},{"@value":"ビワ果実の発育と糖の蓄積〔英文〕"},{"@language":"ja-Kana","@value":"ビワ カジツ ノ ハツイク ト トウ ノ チクセキ エイブン"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206303604736","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Fine Root Volume, Flowering, Sprouting, and Carbohydrate Content in the Leaves and Roots of Bearing and Non-bearing Satsuma Mandarin Trees in a Systemized Alternate-Bearing Orchard."},{"@value":"樹別交互結実させたウンシュウミカン２品種の生産樹・遊休樹の細根量，着花・新梢発生並びに葉・根中炭水化物濃度の比較"},{"@language":"ja-Kana","@value":"ジュ ベツ コウゴ ケツジツ サセタ ウンシュウミカン 2 ヒンシュ ノ セイサンジュ ユウキュウジュ ノ サイコンリョウ チャッカ シン ショウ ハッセイ ナラビニ ヨウ コン チュウ タンスイカブツ ノウド ノ ヒカク"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681277844864","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Fruiting Effects on Leaf Characteristics, Photosynthesis, and Root Growth in Peach Trees."},{"@language":"ja","@value":"着果がモモの葉の形質と光合成,根の生長に及ぼす影響"},{"@value":"着果がモモの葉の形質と光合成,根の生長に及ぼす影響〔英文〕"},{"@language":"ja-Kana","@value":"チャッカ ガ モモ ノ ハ ノ ケイシツ ト コウゴウセイ ネ ノ セイチョウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681279413376","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Effects of Intentional Alternate Bearing Methods on Tree Growth, Yield and Fruit Quality in Young Tree of 'Aoshima unshiu' Satsuma Mandrain (Citrus unshiu Marc.)."},{"@value":"交互結実法が‘青島温州’若齢樹の生育，収量および果実品質に及ぼす影響"},{"@language":"ja-Kana","@value":"コウゴ ケツジツホウ ガ アオシマ ウンシュウ ジャクレイ ジュ ノ セイイク シュウリョウ オヨビ カジツ ヒンシツ ニ オヨボス エイキョウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681279672960","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Changes in Sugar Content and Sorbitol- and Sucrose-Related Enzyme Activities during Development of Loquat(Eriobotrya japonica Lindl. cv. Mogi) Fruit."},{"@language":"ja","@value":"ビワ果実の生長・成熟に伴う糖含量とソルビトールおよびスクロース関連酵素の変動"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2013961194"},{"@type":"NDL_SEARCH","@value":"oai:ndlsearch.ndl.go.jp:R000000004-I033922783"},{"@type":"CROSSREF","@value":"10.2503/hrj.24.45"}]}