山西农业大学学报（自然科学版）2025，Vol.45Issue(2)：20-28,9.DOI:10.13842/j.cnki.issn1671-8151.202409015
砂仁叶位叶绿素荧光特性及品种光合能力分析
The analysis of chlorophyll fluorescence characteristics and photosynthetic capacity of Amomum villo-sum Lour at different leaf positions
摘要
Abstract
[Objective]The aim of this study was to accurately assess the photosynthetic capacity of Amomum villosum and de-velop efficient cultivation techniques for high-quality A.villosum Varieties.[Methods]Two-year-old plants of A.villosum vari-eties'Zhansha 11','Reke 1',and'Reke 2'were used as experimental materials.Chlorophyll fluorescence characteristics at different leaf positions of the varieties were analyzed using a WALZ MINI-PAM-Ⅱ chlorophyll fluorometer.The light response curves of photosynthetic electron flow at different leaf positions were fitted using a mechanistic model of photosynthesis to re-veal their photosynthetic capacity.[Results]Significant differences in photosynthetic intensity were observed among the upper,middle,and lower leaf positions of the same plant,with the photosynthetic rate of middle and upper leaves being significantly higher than that of lower leaves.Significant differences in photosynthetic electron transport rate and photosensitivity were also found among the varieties.The functional leaves of'Reke2'exhibited the highest photosynthetic electron transport rate,light saturation point,and maximum electron transport rate,reaching 71 μmol/(m2·s),553 μmol/(m2·s),and 39.89 μmol/(m2·s),re-spectively.These values were 12.70%,21.30%,and 49.71%higher than those of'Reke1',and 10.17%,28.88%,and 22.61%higher than those of'Zhansha 11'.Additionally,the average chlorophyll content of all leaves in'Reke 2'was signifi-cantly higher than that of the other two varieties,being 2.46%and 18.77%higher than that of'Zhansha 11'and'Reke 1',re-spectively.In terms of fresh fruit yield,'Reke 1'had the highest yield,followed by'Zhansha 11',while'Reke 2'had the low-est yield.'Reke 1'also exhibited the highest volatile oil content and bornyl acetate content,indicating the best quality.[Conclu-sion]The middle and upper leaves of A.villosum are the main functional leaves of the plant and can be used as representative leaves for evaluating photosynthesis ability.The photosynthetic capacity varies among different varieties,with'Reke 2'having the highest photosynthetic capacity,followed by'Zhansha 11',and'Reke 1'having the lowest.关键词
砂仁/叶位/叶绿素荧光/光合能力Key words
Amomum villosum Lour/Leaf Position/Chlorophyll Fluorescence/Photosynthetic Capacity分类
农业科技引用本文复制引用
谢瑞红,姚艳丽,安东升,卢碧莹,李妍慧,李文秀,贺军军..砂仁叶位叶绿素荧光特性及品种光合能力分析[J].山西农业大学学报（自然科学版）,2025,45(2):20-28,9.基金项目
岭南师范学院校级科研项目2022校级人才专项(ZL22016) （ZL22016）
湛江市非资助科技攻关计划项目2024年度第一批(2024B01113) （2024B01113）
2023年省级乡村振兴战略专项种业振兴行动项目(2023-MBH-00-023) （2023-MBH-00-023）
