{"title":"氮磷添加量对绿萝幼苗光合和叶绿素荧光参数的影响","authors":"X L Yue, X F Liu, S Z Fang","doi":"10.32615/ps.2023.023","DOIUrl":null,"url":null,"abstract":"<p><p><i>Cyclocarya paliurus</i> has been traditionally used as a functional food in China. A hydroponic experiment was conducted to determine the effects of N and P additions on photosynthesis and chlorophyll fluorescence (ChlF) of <i>C. paliurus</i> seedlings. N and P additions significantly altered photosynthesis and ChlF in the seedlings, but responses of these parameters to the N and P concentrations varied at different developmental stages. The greatest net photosynthetic rate (<i>P</i> <sub>N</sub>) and actual photochemical efficiency of PSII (Ф<sub>PSII</sub>) occurred in the treatment of 150.0 mg(N) L<sup>-1</sup> and 25.0 mg(P) L<sup>-1</sup> addition, whereas the highest maximum quantum yield of PSII (F<sub>v</sub>/F<sub>m</sub>) and water-use efficiency (WUE) were recorded with 150.0 mg(N) L<sup>-1</sup> and 15.0 mg(P) L<sup>-1</sup> on the 60<sup>th</sup> day after treatment. Significantly positive correlations of <i>P</i> <sub>N</sub> with leaf relative chlorophyll content, transpiration rate, WUE, F<sub>v</sub>/F<sub>m</sub>, and Φ<sub>PSII</sub>, as well as the Ф<sub>PSII</sub> with the F<sub>v</sub>/F<sub>m</sub>, were found<i>.</i> Our results indicated that an optimal addition of N and P nutrients depends on their coupling effects on the photosynthetic capacity and PSII photochemistry.</p>","PeriodicalId":20157,"journal":{"name":"Photosynthetica","volume":"31 1","pages":"318-327"},"PeriodicalIF":2.1000,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558584/pdf/","citationCount":"0","resultStr":"{\"title\":\"Influence of nitrogen and phosphorus additions on parameters of photosynthesis and chlorophyll fluorescence in <i>Cyclocarya paliurus</i> seedlings.\",\"authors\":\"X L Yue, X F Liu, S Z Fang\",\"doi\":\"10.32615/ps.2023.023\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p><i>Cyclocarya paliurus</i> has been traditionally used as a functional food in China. A hydroponic experiment was conducted to determine the effects of N and P additions on photosynthesis and chlorophyll fluorescence (ChlF) of <i>C. paliurus</i> seedlings. N and P additions significantly altered photosynthesis and ChlF in the seedlings, but responses of these parameters to the N and P concentrations varied at different developmental stages. The greatest net photosynthetic rate (<i>P</i> <sub>N</sub>) and actual photochemical efficiency of PSII (Ф<sub>PSII</sub>) occurred in the treatment of 150.0 mg(N) L<sup>-1</sup> and 25.0 mg(P) L<sup>-1</sup> addition, whereas the highest maximum quantum yield of PSII (F<sub>v</sub>/F<sub>m</sub>) and water-use efficiency (WUE) were recorded with 150.0 mg(N) L<sup>-1</sup> and 15.0 mg(P) L<sup>-1</sup> on the 60<sup>th</sup> day after treatment. Significantly positive correlations of <i>P</i> <sub>N</sub> with leaf relative chlorophyll content, transpiration rate, WUE, F<sub>v</sub>/F<sub>m</sub>, and Φ<sub>PSII</sub>, as well as the Ф<sub>PSII</sub> with the F<sub>v</sub>/F<sub>m</sub>, were found<i>.</i> Our results indicated that an optimal addition of N and P nutrients depends on their coupling effects on the photosynthetic capacity and PSII photochemistry.</p>\",\"PeriodicalId\":20157,\"journal\":{\"name\":\"Photosynthetica\",\"volume\":\"31 1\",\"pages\":\"318-327\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2023-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11558584/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Photosynthetica\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.32615/ps.2023.023\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2023/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photosynthetica","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.32615/ps.2023.023","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
Influence of nitrogen and phosphorus additions on parameters of photosynthesis and chlorophyll fluorescence in Cyclocarya paliurus seedlings.
Cyclocarya paliurus has been traditionally used as a functional food in China. A hydroponic experiment was conducted to determine the effects of N and P additions on photosynthesis and chlorophyll fluorescence (ChlF) of C. paliurus seedlings. N and P additions significantly altered photosynthesis and ChlF in the seedlings, but responses of these parameters to the N and P concentrations varied at different developmental stages. The greatest net photosynthetic rate (PN) and actual photochemical efficiency of PSII (ФPSII) occurred in the treatment of 150.0 mg(N) L-1 and 25.0 mg(P) L-1 addition, whereas the highest maximum quantum yield of PSII (Fv/Fm) and water-use efficiency (WUE) were recorded with 150.0 mg(N) L-1 and 15.0 mg(P) L-1 on the 60th day after treatment. Significantly positive correlations of PN with leaf relative chlorophyll content, transpiration rate, WUE, Fv/Fm, and ΦPSII, as well as the ФPSII with the Fv/Fm, were found. Our results indicated that an optimal addition of N and P nutrients depends on their coupling effects on the photosynthetic capacity and PSII photochemistry.
期刊介绍：
Photosynthetica publishes original scientific papers and brief communications, reviews on specialized topics, book reviews and announcements and reports covering wide range of photosynthesis research or research including photosynthetic parameters of both experimental and theoretical nature and dealing with physiology, biophysics, biochemistry, molecular biology on one side and leaf optics, stress physiology and ecology of photosynthesis on the other side.
The language of journal is English (British or American). Papers should not be published or under consideration for publication elsewhere.
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