{"title":"不饱和光诱导延迟荧光表征植物光合能力的实验研究","authors":"Wenhai Xu, Ying Li","doi":"10.1109/SOPO.2009.5230122","DOIUrl":null,"url":null,"abstract":"Delayed fluorescence (DF) is the phenomenon of longlived photon emission by plant after being illuminated with light and put into darkness. In field study, the intensity of DF is reported to be a measure of photosynthetic capacity (marked as PhC). In this research, a new method was developed, which used unsaturated light-induced DF intensity (in this research, marked as IDF) to represent plant PhC. The proposed method prolonged the sustainable working hours of DF detection system. Hence, it was more appropriate than saturated light condition for field study. In order to examine the new method, four different species were chosen as samples to compare IDF with net photosynthetic rate (Pn) under different intensities of excitation light. The results showed that there is an excellent linear correlation between them (R≥0.947). The experimental results testified that unsaturated light-induced IDF can represent the plant PhC.","PeriodicalId":6416,"journal":{"name":"2009 Symposium on Photonics and Optoelectronics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Experimental Study on Using Unsaturated Light-Induced Delayed Fluorescence to Represent Plant Photosynthetic Capacity\",\"authors\":\"Wenhai Xu, Ying Li\",\"doi\":\"10.1109/SOPO.2009.5230122\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Delayed fluorescence (DF) is the phenomenon of longlived photon emission by plant after being illuminated with light and put into darkness. In field study, the intensity of DF is reported to be a measure of photosynthetic capacity (marked as PhC). In this research, a new method was developed, which used unsaturated light-induced DF intensity (in this research, marked as IDF) to represent plant PhC. The proposed method prolonged the sustainable working hours of DF detection system. Hence, it was more appropriate than saturated light condition for field study. In order to examine the new method, four different species were chosen as samples to compare IDF with net photosynthetic rate (Pn) under different intensities of excitation light. The results showed that there is an excellent linear correlation between them (R≥0.947). The experimental results testified that unsaturated light-induced IDF can represent the plant PhC.\",\"PeriodicalId\":6416,\"journal\":{\"name\":\"2009 Symposium on Photonics and Optoelectronics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 Symposium on Photonics and Optoelectronics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SOPO.2009.5230122\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 Symposium on Photonics and Optoelectronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SOPO.2009.5230122","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Experimental Study on Using Unsaturated Light-Induced Delayed Fluorescence to Represent Plant Photosynthetic Capacity
Delayed fluorescence (DF) is the phenomenon of longlived photon emission by plant after being illuminated with light and put into darkness. In field study, the intensity of DF is reported to be a measure of photosynthetic capacity (marked as PhC). In this research, a new method was developed, which used unsaturated light-induced DF intensity (in this research, marked as IDF) to represent plant PhC. The proposed method prolonged the sustainable working hours of DF detection system. Hence, it was more appropriate than saturated light condition for field study. In order to examine the new method, four different species were chosen as samples to compare IDF with net photosynthetic rate (Pn) under different intensities of excitation light. The results showed that there is an excellent linear correlation between them (R≥0.947). The experimental results testified that unsaturated light-induced IDF can represent the plant PhC.