{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T05:41:13Z","timestamp":1762407673094,"version":"3.38.0"},"reference-count":41,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2008,4,1]],"date-time":"2008-04-01T00:00:00Z","timestamp":1207008000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Appl Spectrosc"],"published-print":{"date-parts":[[2008,4]]},"abstract":"<jats:p> Laser-induced fluorescence spectra were used to characterize the effect of cadmium on the pigment status of the leaves of Cajanus cajan L. Laser-induced fluorescence spectra of untreated as well as cadmium treated (0.01 mM, 0.10 mM, and 1.00 mM) Cajanus cajan L. were recorded using the 355 nm line of a Nd:YAG laser as the excitation source and a monochromator with an intensified charge-coupled device as a detector in the region 400\u2013800 nm. The fluorescence intensity ratios (FIR) of control as well as treated Cajanus cajan L. have been calculated by evaluating curve fitted parameters using a Gaussian spectral function. In addition, some growth parameters, such as photosynthetic pigment content, were also measured. The 355 nm line of the laser-light-excited leaves not only showed a fluorescence emission in the red spectral region (650\u2013800 nm), but also in the blue-green region (400\u2013570 nm). The chlorophyll FIR F690\/F740 strongly correlated with the photosynthetic pigment content (total chlorophyll and carotenoids) and its ratio. Consequently, a correlation was also seen between the ratio of the blue-green fluorescence F470\/F540 and the photosynthetic pigment content. The results indicated that the plants treated with 0.01 mM of cadmium exhibited better growth, while higher concentrations of cadmium were hazardous for Cajanus cajan L. <\/jats:p>","DOI":"10.1366\/000370208784046687","type":"journal-article","created":{"date-parts":[[2008,4,9]],"date-time":"2008-04-09T02:13:17Z","timestamp":1207707197000},"page":"433-438","source":"Crossref","is-referenced-by-count":10,"title":["Laser-Induced Fluorescence Ratios of <i>Cajanus Cajan<\/i> L. under the Stress of Cadmium and its Correlation with Pigment Content and Pigment Ratios"],"prefix":"10.1177","volume":"62","author":[{"given":"Renu","family":"Maurya","sequence":"first","affiliation":[{"name":"Laser and Spectroscopy Lab., Department of Physics, University of Allahabad, Allahabad, 211002, India (R.M., R.G.); and M. N. Saha Centre of Space Studies, I.I.D.S., University of Allahabad, Allahabad, 211002, India (R.M., R.G.)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Gopal","sequence":"additional","affiliation":[{"name":"Laser and Spectroscopy Lab., Department of Physics, University of Allahabad, Allahabad, 211002, India (R.M., R.G.); and M. N. Saha Centre of Space Studies, I.I.D.S., University of Allahabad, Allahabad, 211002, India (R.M., R.G.)"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2008,4,1]]},"reference":[{"key":"bibr1-000370208784046687","volume":"6604","author":"Saito Y.","year":"2007","journal-title":"Proc. SPIE-Int. Soc. Opt. Eng."},{"key":"bibr2-000370208784046687","first-page":"82","volume":"3707","author":"Valcke R. L.","year":"1999","journal-title":"Proc. SPIE-Int. Soc. Opt. 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