start-ver=1.4 cd-journal=joma no-vol=113 cd-vols= no-issue= article-no= start-page=7 end-page=10 dt-received= dt-revised= dt-accepted= dt-pub-year=2024 dt-pub=20240201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Effect of seed cold PEG-priming and subsequent long storage on germination, growth and flowering of Eustoma grandiflorum（Raf.）Shinn ʻExe Lavenderʼ en-subtitle= kn-subtitle= en-abstract= kn-abstract=Cold wet treatment is frequently applied to Eustoma seeds to enhance the bolting rate of plants grown under high temperatures. Our previous study indicated that cold PEG‒primed Eustoma seeds could maintain their germination rate and bolting rate even after being re‒dried for 30days and grown under high temperatures. The present study aimed to investigate whether prolonged storage after cold PEG‒priming affect the germination, growth, and flowering of Eustoma ‘Exe Lavender’ seedling. Seeds were initially cold‒primed with water or PEG‒6000 at ‒1.5 MPa for 5 weeks at 10°C in the dark and were then subjected to re‒drying and storage for 30, 60, 90 and 360days at 10°C. After 360days of storage, cold PEG‒primed seeds germinated earlier and more effectively than cold hydro‒primed seeds. Compared to the results after 30days of storage, plants grown from 360days exhibited similar bolting rate, days to bolting, bolting node and flowering rate, cut flower length and number of flower node. These results suggest that ‘Exe Lavender’ seeds can germinate and develop well even after 360days of storage and under high temperature conditions when subjected to cold PEG‒6000 treatment. en-copyright= kn-copyright= en-aut-name=PhanThao Thu en-aut-sei=Phan en-aut-mei=Thao Thu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=FukushimaKeigo en-aut-sei=Fukushima en-aut-mei=Keigo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=TanakaYoshiyuki en-aut-sei=Tanaka en-aut-mei=Yoshiyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=YasubaKen-ichiro en-aut-sei=Yasuba en-aut-mei=Ken-ichiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=YoshidaYuichi en-aut-sei=Yoshida en-aut-mei=Yuichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=GotoTanjuro en-aut-sei=Goto en-aut-mei=Tanjuro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= affil-num=1 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=2 en-affil=Hiroshima Prefectural Technology Research Institute, Agricultural Technology Research Center kn-affil= affil-num=3 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=4 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=5 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=6 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= en-keyword=bolting kn-keyword=bolting en-keyword=chilling kn-keyword=chilling en-keyword=dehydrate kn-keyword=dehydrate en-keyword=long storage kn-keyword=long storage en-keyword=PEG-6000 kn-keyword=PEG-6000 END start-ver=1.4 cd-journal=joma no-vol=89 cd-vols= no-issue=1 article-no= start-page=22 end-page=29 dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=2020 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Effect of Defoliation on Blossom-end Rot Incidence and Calcium Transport into Fruit of Tomato Cultivars Under Moderate Water Stress en-subtitle= kn-subtitle= en-abstract= kn-abstract=The translocation of calcium (Ca) within the tomato plant and the causes of Ca deficiency, a factor associated with blossom-end rot (BER) in fruit, are still a matter of conjecture. The objective of this study was to determine the effect of defoliation on BER incidence and Ca transport into different size tomato fruit cultivars. Four experiments were conducted. The start and end dates for each experiment were; 14 March–2 May, 22 July–23 August, 30 August–7 October 2017, and 20 May–25 June 2018, for experiments 1, 2, 3, and 4, respectively. Five tomato cultivars including one large (‘Momotaro fight (MF)’, ≥ 200 g), three medium (‘Lui 60 (L60)’, ‘Tio cook (TC)’, and ‘Cindy sweet (CS)’, 30–80 g), and one small (‘Pepe (PP)’, ≤ 20 g) fruit cultivars, respectively, were grown under moderate water stress controlled by a combination of root zone restriction and solar mediated fertigation. Leaf area of plants was reduced by 20–30% by removing alternate leaflets on all leaves. Defoliation significantly reduced BER in all experiments. In experiment 4, no BER was observed in defoliated plants of L60 and PP, and in MF and TC, BER incidence decreased to a quarter of the control. Defoliation increased the fruit growth rate (FGR) in experiment 1, in which the temperature was the lowest, by a ratio of 1.42 and by 1.39 in experiment 4, in which the radiation was strongest and day length longest. Defoliation increased the rate of daily Ca transport into fruit (CTR) in MF, L60, TC, CS, and PP by average ratios of 1.64, 1.55, 1.35, 1.30, and 1.13, respectively. The increase in CTR in defoliated plants was highest in experiment 4 with a ratio of 1.68 followed by 1.37, 1.33, and 1.28 in experiments 1, 3, and 2, respectively. Defoliation increased both FGR and CTR and there were significant linear relationships between them. However, the degree of increase was larger in CTR than that in FGR, especially in the BER-sensitive large fruit cultivar MF, and defoliation increased the total Ca concentration in fruit accordingly. We conclude that under moderate water stress by root zone restriction and certain other BER inductive conditions, defoliation could be a promising approach to reduce BER incidence by improving Ca nutrition in susceptible large fruit cultivars. en-copyright= kn-copyright= en-aut-name=IndecheAnnah Khatenje en-aut-sei=Indeche en-aut-mei=Annah Khatenje kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=YoshidaYuichi en-aut-sei=Yoshida en-aut-mei=Yuichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=GotoTanjuro en-aut-sei=Goto en-aut-mei=Tanjuro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=YasubaKen-ichiro en-aut-sei=Yasuba en-aut-mei=Ken-ichiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=TanakaYoshiyuki en-aut-sei=Tanaka en-aut-mei=Yoshiyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= affil-num=1 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=2 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=3 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=4 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=5 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil= END start-ver=1.4 cd-journal=joma no-vol=108 cd-vols= no-issue= article-no= start-page=5 end-page=13 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=20190201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Effect of boron deficiency on tip burn and malformed fruit incidence in strawberries kn-title=B（ホウ素）欠乏処理がイチゴのチップバーンおよび受精不良果発生に及ぼす影響 en-subtitle= kn-subtitle= en-abstract=　B（ホウ素）は植物にとって必須な微量要素であり，イチゴの受精不良果発生要因の1 つである．そこで2015年度と2016年度の2 回にわたりB 欠乏がイチゴの受精不良果発生に及ぼす影響について調査した．また，2016年度はB 欠乏処理後にB 回復処理を行い，その後のイチゴの果実形態の変化についても調査した．その結果，B欠乏処理を行うと蒸散機能の低い新葉や花芽においてチップバーンが発生し，種浮き果や部分不受精を主とした受精不良果が多発した．しかし，B 回復処理を行うことでこれらの症状が改善することが明らかになった．B は受精不良果発生に関係しており，欠乏条件下で根から吸収させると急速に若い成長中の組織に転流することが示されたことから，B 栄養をコントロールすることでB 不足によるイチゴの受精不良果発生を軽減できる可能性があると考えられる． kn-abstract=Boron (B) is an essential micro element for plants and plays important roles in the synthesis and functions of cell wall. B deficiency has been reported as one of the causes of fruit malformation in strawberries. We investigated the effect of B deficiency on flower and fruit development of forced strawberries for two cropping seasons (2015-2017). In the second season, B was resupplied for B-deficient plants and we investigated changes in fruit development. When B-free nutrient solutions were supplied, tip burn began to occur in newly emerging leaves and calyx 2 to 3 months later, and fruit malformation including seedy or only partly developed fruits with undeveloped achenes occurred frequently. However, these deficient symptoms were quickly disappeared by supplying B containing nutrient solutions. In conclusion, B nutrition is closely related to the occurrence of fruit malformation through fertility of pollen and pistils, and also development of receptacle tissue in strawberries. It should be possible to reduce fruit malformation in strawberries by proper control of B nutrition. en-copyright= kn-copyright= en-aut-name=SesumiMiho en-aut-sei=Sesumi en-aut-mei=Miho kn-aut-name=瀬角美穂 kn-aut-sei=瀬角 kn-aut-mei=美穂 aut-affil-num=1 ORCID= en-aut-name=YoshidaYuichi en-aut-sei=Yoshida en-aut-mei=Yuichi kn-aut-name=吉田裕一 kn-aut-sei=吉田 kn-aut-mei=裕一 aut-affil-num=2 ORCID= en-aut-name=KinjoAkari en-aut-sei=Kinjo en-aut-mei=Akari kn-aut-name=金城朱理 kn-aut-sei=金城 kn-aut-mei=朱理 aut-affil-num=3 ORCID= en-aut-name=HidakaKei en-aut-sei=Hidaka en-aut-mei=Kei kn-aut-name=日高啓 kn-aut-sei=日高 kn-aut-mei=啓 aut-affil-num=4 ORCID= en-aut-name=GotoTanjuro en-aut-sei=Goto en-aut-mei=Tanjuro kn-aut-name=後藤丹十郎 kn-aut-sei=後藤 kn-aut-mei=丹十郎 aut-affil-num=5 ORCID= en-aut-name=YasubaKen-ichiro en-aut-sei=Yasuba en-aut-mei=Ken-ichiro kn-aut-name=安場健一郎 kn-aut-sei=安場 kn-aut-mei=健一郎 aut-affil-num=6 ORCID= en-aut-name=TanakaYoshiyuki en-aut-sei=Tanaka en-aut-mei=Yoshiyuki kn-aut-name=田中義行 kn-aut-sei=田中 kn-aut-mei=義行 aut-affil-num=7 ORCID= affil-num=1 en-affil=Graduate school of Environmental and Life Science kn-affil=岡山大学大学院　環境生命科学研究科 affil-num=2 en-affil=Graduate school of Environmental and Life Science kn-affil=岡山大学大学院　環境生命科学研究科 affil-num=3 en-affil=Graduate school of Environmental and Life Science kn-affil=岡山大学大学院　環境生命科学研究科 affil-num=4 en-affil=Asahi Kagaku Kogyo Co., Ltd.) kn-affil=旭化学工業 affil-num=5 en-affil=Graduate school of Environmental and Life Science kn-affil=岡山大学大学院　環境生命科学研究科 affil-num=6 en-affil=Graduate school of Environmental and Life Science kn-affil=岡山大学大学院　環境生命科学研究科 affil-num=7 en-affil=Graduate school of Environmental and Life Science kn-affil=岡山大学大学院　環境生命科学研究科 en-keyword=floral organs kn-keyword=floral organs en-keyword=Fragaria × ananassa Duch. kn-keyword=Fragaria × ananassa Duch. en-keyword=pistil fertility kn-keyword=pistil fertility en-keyword=receptacle growth kn-keyword=receptacle growth en-keyword=seedy fruit kn-keyword=seedy fruit END start-ver=1.4 cd-journal=joma no-vol=106 cd-vols= no-issue= article-no= start-page=27 end-page=32 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=20170201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=トウガラシ（Capsicum baccatum）における カプサイシノイド含量の変異とその非辛味系統 kn-title=Variations in capsaicinoid contents in the chili pepper (Capsicum baccatum) and its non-pungent accessions en-subtitle= kn-subtitle= en-abstract=　トウガラシ（Capsicum 属）は世界的に重要な香辛料および野菜である．C. baccatum は南米原産のマイナーな栽培種であるが，果色，果形や辛味など果実形質に多様性が認められることから，トウガラシ遺伝資源として注目されている．トウガラシの辛味性についてはC. annuum 種において多くの研究が行われているが，C. baccatum 種においては十分研究されていない．
　本研究では，C. baccatum 36系統について辛味成分カプサイシノイドの含量を調査した．カプサイシノイド含量の幅は0 ～4,258 ㎍ /gDW であった．また果実重と辛味成分含量の間に負の相関が認められた．C. baccatum の辛味は低〜中程度であるが，非辛味系統はほとんど認められず，唯一1 系統（‘Kaleidoscope’）が非辛味であった．この非辛味の安定性を調査するために，辛味程度の異なる系統とともに異なる収穫時期におけるカプサイシノイド含量を調査した．
　他のC. baccatum 系統ではカプサイシノイド含量は収穫時期で変化したが，‘Kaleidoscope’ ではいずれの収穫時期でもカプサイシノイドは検出されなかった．本研究で見出された非辛味系統は将来のC. baccatum の育種において有用であろう． kn-abstract=The chili pepper (Capsicum) is both an important spice and fresh vegetable worldwide. C. baccatum is a lesser known domesticated species that is native to the Andean region. Fruit traits such as color, shape, and pungency markedly vary in this species. C. baccatum has potential as a bioresource for future chili pepper breeding programs. Although extensive studies have been conducted on the pungency of C. annuum, that of C. baccatum has not been examined in as much detail. In the present study, capsaicinoid contents were analyzed in 36 C. baccatum accessions. Capsaicinoid contents ranged between 0 and 4,258 μg/gDW. Furthermore, a negative relationship was observed between capsaicinoid contents and fruit weights. Although the pungency of C. baccatum is regarded as low-mild, very few non-pungent accessions were detected ; only one non-pungent accession (‘Kaleidoscope’) was identified among the C. baccatum accessions examined. In order to validate the stability of non-pungency in the accession, capsaicinoid contents were determined at different harvest dates, along with other accessions with different pungencies. Although capsaicinoid contents in other C. baccatum accessions changed with the picking date, capsaicinoid was not detected in ‘Kaleidoscope’ at any date. The non-pungent accession reported here may be useful for future C. baccatum pepper breeding programs. en-copyright= kn-copyright= en-aut-name=TanakaYoshiyuki en-aut-sei=Tanaka en-aut-mei=Yoshiyuki kn-aut-name=田中義行 kn-aut-sei=田中 kn-aut-mei=義行 aut-affil-num=1 ORCID= en-aut-name=HaraMotohito en-aut-sei=Hara en-aut-mei=Motohito kn-aut-name=原一仁 kn-aut-sei=原 kn-aut-mei=一仁 aut-affil-num=2 ORCID= en-aut-name=GotoTanjuro en-aut-sei=Goto en-aut-mei=Tanjuro kn-aut-name=後藤丹十郎 kn-aut-sei=後藤 kn-aut-mei=丹十郎 aut-affil-num=3 ORCID= en-aut-name=YoshidaYuichi en-aut-sei=Yoshida en-aut-mei=Yuichi kn-aut-name=吉田裕一 kn-aut-sei=吉田 kn-aut-mei=裕一 aut-affil-num=4 ORCID= en-aut-name=YasubaKen-ichiro en-aut-sei=Yasuba en-aut-mei=Ken-ichiro kn-aut-name=安場健一郎 kn-aut-sei=安場 kn-aut-mei=健一郎 aut-affil-num=5 ORCID= affil-num=1 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=2 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=3 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=4 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=5 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 en-keyword=Bio-resource kn-keyword=Bio-resource en-keyword=Fruit shape kn-keyword=Fruit shape END start-ver=1.4 cd-journal=joma no-vol=106 cd-vols= no-issue= article-no= start-page=21 end-page=25 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=20170201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Effect of Beginning Date of Intermittent Low Temperature Treatments on Flowering of Tray-grown Strawberry 'Nyoho' kn-title=処理開始時期がトレイ育苗したイチゴ‘女峰’に対する 間欠冷蔵処理の効果発現に及ぼす影響 en-subtitle= kn-subtitle= en-abstract= kn-abstract=　Intermittent low temperature storage is expected to be a new artificial flower-inducing treatment and becoming to be a practical procedure as it does not require expensive equipment or much energy cost. Tray-grown ‘Nyoho’ plants were placed in a refrigerator (15°C, in the dark) for 3 days and then transferred to a further outdoor shelter for 3 days. Plants were transferred at noon and this cycle was repeated twice (3D/3D). Such 3D/3D treatments were begun on August 22, 25, 28, 31, and September 3and the effectiveness on flowering was determined for 2 years. Both in 2012 and 2013, treatments begun before August 28 were less effective compared to the treatments begun on August 28 or later. Continuous 6 days of 15°C storage (6D) was effective to some extent, but 6D from August 25 was apparently less effective compared to those begun later. Both in intermittent and continuous treatments for ‘Nyoho’, it was confirmed that any flower-inducing effect became relatively small and unstable when the treatments were begun before 28 August in Okayama. en-copyright= kn-copyright= en-aut-name=KinjoaAkari en-aut-sei=Kinjoa en-aut-mei=Akari kn-aut-name=金城朱理 kn-aut-sei=金城 kn-aut-mei=朱理 aut-affil-num=1 ORCID= en-aut-name=HanadaAtsushi en-aut-sei=Hanada en-aut-mei=Atsushi kn-aut-name=花田惇史 kn-aut-sei=花田 kn-aut-mei=惇史 aut-affil-num=2 ORCID= en-aut-name=YoshidaYuichi en-aut-sei=Yoshida en-aut-mei=Yuichi kn-aut-name=吉田裕一 kn-aut-sei=吉田 kn-aut-mei=裕一 aut-affil-num=3 ORCID= en-aut-name=GotoTanjuro en-aut-sei=Goto en-aut-mei=Tanjuro kn-aut-name=後藤丹十郎 kn-aut-sei=後藤 kn-aut-mei=丹十郎 aut-affil-num=4 ORCID= en-aut-name=YasubaKen-ichiro en-aut-sei=Yasuba en-aut-mei=Ken-ichiro kn-aut-name=安場健一郎 kn-aut-sei=安場 kn-aut-mei=健一郎 aut-affil-num=5 ORCID= en-aut-name=TanakaYoshiyuki en-aut-sei=Tanaka en-aut-mei=Yoshiyuki kn-aut-name=田中義行 kn-aut-sei=田中 kn-aut-mei=義行 aut-affil-num=6 ORCID= en-aut-name=YoshidaAtsuko en-aut-sei=Yoshida en-aut-mei=Atsuko kn-aut-name=吉田敦子 kn-aut-sei=吉田 kn-aut-mei=敦子 aut-affil-num=7 ORCID= affil-num=1 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=2 en-affil=Graduate School of Environmental and Life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=3 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=4 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=5 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=6 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=7 en-affil=Nozomi Farm Co. kn-affil=(有)のぞみふぁーむ en-keyword=artificial flower induction kn-keyword=artificial flower induction en-keyword=Fragaria x ananassa Duch. kn-keyword=Fragaria x ananassa Duch. en-keyword=low temperature storage kn-keyword=low temperature storage en-keyword=runner cutting kn-keyword=runner cutting END start-ver=1.4 cd-journal=joma no-vol=37 cd-vols= no-issue= article-no= start-page=17 end-page=20 dt-received= dt-revised= dt-accepted= dt-pub-year=2015 dt-pub=20150401 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=間欠冷蔵処理回数がイチゴ‘女峰’の開花に及ぼす影響 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=吉田裕一 kn-aut-sei=吉田 kn-aut-mei=裕一 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=後藤丹十郎 kn-aut-sei=後藤 kn-aut-mei=丹十郎 aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=安場健一郎 kn-aut-sei=安場 kn-aut-mei=健一郎 aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=田中義行 kn-aut-sei=田中 kn-aut-mei=義行 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=2 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=3 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=4 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター END start-ver=1.4 cd-journal=joma no-vol=37 cd-vols= no-issue= article-no= start-page=9 end-page=16 dt-received= dt-revised= dt-accepted= dt-pub-year=2015 dt-pub=20150401 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=挿し苗時期，苗の大きさとクラウンの深さがイチゴ‘さちのか’ の花芽分化と開花に及ぼす影響 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=吉田裕一 kn-aut-sei=吉田 kn-aut-mei=裕一 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=宮地大介 kn-aut-sei=宮地 kn-aut-mei=大介 aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=後藤丹十郎 kn-aut-sei=後藤 kn-aut-mei=丹十郎 aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=田中義行 kn-aut-sei=田中 kn-aut-mei=義行 aut-affil-num=4 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=安場健一郎 kn-aut-sei=安場 kn-aut-mei=健一郎 aut-affil-num=5 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=本村翔 kn-aut-sei=本村 kn-aut-mei=翔 aut-affil-num=6 ORCID= affil-num=1 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=2 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=3 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=4 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=5 en-affil= kn-affil=岡山大学農学部附属山陽圏フィールド科学センター affil-num=6 en-affil= kn-affil=岡山大学大学院自然科学研究科 END start-ver=1.4 cd-journal=joma no-vol=103 cd-vols= no-issue= article-no= start-page=37 end-page=43 dt-received= dt-revised= dt-accepted= dt-pub-year=2014 dt-pub=20140201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Research on capsiconinoid contents, nonpungent capsaicinoid analogues, in Capsicum cultivars kn-title=トウガラシにおける新規カプサイシン類似物質・カプシコニノイドの含量 en-subtitle= kn-subtitle= en-abstract= kn-abstract=　In the course of analyses of nonpungent capsaicinoid analogs named capsinoids, two unknown compounds were discovered in pepper fruits. These compounds were isolated from the fruit of ‘CCB’(Capsicum baccatum var. praetermissum). Their structures were determined to be coniferyl (E)‒8‒methyl‒6‒nonenoate and coniferyl 8‒methylnonanoate. These novel capsaicin analogs were named capsiconiate and dihydrocapsiconiate, respectively, and the coniferyl ester group was named capsiconinoid. Capsiconinoids have agonist activity for transient receptor potential vanilloid type 1, and their pungency is very low, as similar to that of capsinoids. Cultivars containing high levels of capsiconinoid are considered to be important for vegetable or dietary supplement. HPLC analysis was conducted to determine capsiconinoid content in fruits of 54 Capsicum cultivars : 28 cultivars of C. annuum, 9 of C. baccatum, 12 of C. chinense, 4 of C. frutescens, and 1 of C. pubescens. Twelve cultivars contained capsiconinoids. ‘CCB’ showed the highest capsiconinoid content level (3314 μg・g‒1 DW) and ‘Charapita’ (C. chinense) had the second highest (2694 μg・g‒1 DW). The other 10 cultivars contained much lower capsiconinoid than these two cultivars (<300 μg・g‒1 DW). Time-course analysis during fruit development clarified that capsiconinoid content increased and reached maximum level in green mature fruit. Capsaicinoid contents also increased, correspondingly. As fruits matured, capsiconinoid contents decreased rapidly, while capsaicinoid content either did not change or decreased slightly. en-copyright= kn-copyright= en-aut-name=TanakaYoshiyuki en-aut-sei=Tanaka en-aut-mei=Yoshiyuki kn-aut-name=田中義行 kn-aut-sei=田中 kn-aut-mei=義行 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=pepper kn-keyword=pepper en-keyword=capsaicinoid analogs kn-keyword=capsaicinoid analogs en-keyword=capsiconinoid kn-keyword=capsiconinoid END start-ver=1.4 cd-journal=joma no-vol=103 cd-vols= no-issue= article-no= start-page=11 end-page=19 dt-received= dt-revised= dt-accepted= dt-pub-year=2014 dt-pub=20140201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Effects of potassium nutrition on fruit development and yield of substrate grown strawberry kn-title=養液栽培イチゴの生育・収量と果実発育に及ぼすカリウム栄養の影響 en-subtitle= kn-subtitle= en-abstract= kn-abstract=　Effect of K nutrition on sugar and organic acid concentration in fruit and yield of strawberry cultivars (Fragaria ×ananassa Duch.; Nyoho, Toyonoka, Sachinoka, Asukarubi, Akihime, Tochiotome, and Sagahonoka) was investigated. Nutrient solution (NO3 8, NH4 1, P 1, K 4, Ca 2, Mg 1, SO4 1 ; mM) was modified to contain 0 to 4mM of K by replacing K with Ca and supplied from the beginning of flowering. K in the drainage decreased to a trace level 3 weeks after the beginning of treatment except for 4mM‒K solution. Absorption of NO3 apparently decreased in plants supplied 0mM‒K solution, but little difference was observed among the other 3 solutions. K concentration in petiole decreased linearly with decrease in K concentration in solutions, but there was little difference between the concentrations of leaflet of plants supplied with 4 and 2mM‒K solutions. No difference was observed in concentrations of sugars and organic acids in fruit in primary inflorescence. In the second inflorescence, organic acids and K concentration in fruit linearly decreased with decrease in K in supplied solutions while sugar concentration of fruit decreased significantly only in plants supplied 0mM‒K solution. When 0.5 to 4mM‒K solutions were supplied from 2 weeks after planting, marketable fruit yield was smallest in plants supplied 0.5mM‒K solution followed, by that supplied 1mM‒K solution, and largest in that supplied with 2mM‒K solution. Almost all K supplied with 2mM‒K solution was absorbed by strawberry plants and no difference was observed in quality and K concentration of fruit, yield and plant growth between the plants supplied with 2 and 4mM‒K solutions. It may be suitable to reduce the concentration of K in nutrient solution by half for substrate production of strawberry. en-copyright= kn-copyright= en-aut-name=YoshidaYuichi en-aut-sei=Yoshida en-aut-mei=Yuichi kn-aut-name=吉田裕一 kn-aut-sei=吉田 kn-aut-mei=裕一 aut-affil-num=1 ORCID= en-aut-name=OhmoriToshimasa en-aut-sei=Ohmori en-aut-mei=Toshimasa kn-aut-name=大森敏正 kn-aut-sei=大森 kn-aut-mei=敏正 aut-affil-num=2 ORCID= en-aut-name=GotoTanjuro en-aut-sei=Goto en-aut-mei=Tanjuro kn-aut-name=後藤丹十郎 kn-aut-sei=後藤 kn-aut-mei=丹十郎 aut-affil-num=3 ORCID= en-aut-name=TanakaYoshiyuki en-aut-sei=Tanaka en-aut-mei=Yoshiyuki kn-aut-name=田中義行 kn-aut-sei=田中 kn-aut-mei=義行 aut-affil-num=4 ORCID= en-aut-name=MurakamiKenji en-aut-sei=Murakami en-aut-mei=Kenji kn-aut-name=村上賢治 kn-aut-sei=村上 kn-aut-mei=賢治 aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=農林水産省中国四国農政局 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 affil-num=5 en-affil= kn-affil=石川県立大学生物資源環境学部 en-keyword=Fragaria ×ananassa Duch. kn-keyword=Fragaria ×ananassa Duch. en-keyword=K/Ca ratio kn-keyword=K/Ca ratio en-keyword=organic acids kn-keyword=organic acids en-keyword=sugars kn-keyword=sugars END