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Photosynthetic activity and OJIP fluorescence with the application of a nutritional solution
The effects of macronutrients (Mg and P), and micronutrients (Mn, Cu, and Fe) application on the physiological performance of the photosynthetic apparatus were examined using the A /Ci curve and transient OJIP fluorescence methods. It was also evaluated the impact on the production, and dry matter o...
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Published in: | Acta physiologiae plantarum 2022-07, Vol.44 (7), Article 67 |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The effects of macronutrients (Mg and P), and micronutrients (Mn, Cu, and Fe) application on the physiological performance of the photosynthetic apparatus were examined using the
A
/Ci curve and transient OJIP fluorescence methods. It was also evaluated the impact on the production, and dry matter of roots. The nutrients studied are responsible for several physiological mechanisms, such as the activation of enzymes, the constitution of chlorophyll, formation of ATP, DNA, and RNA, among others. Transient fluorescence parameters provide quick information on a wide range of photosynthetic component processes and can assist in understanding photosynthetic performance. For this purpose, a study was carried out with four concentrations of a nutrient solution (Mg, P, Mn, Cu, and Fe), and two application times, vegetation/reproduction and only reproduction stage. The nutrient solution application influenced positively the photosynthetic performance indexes, production, and root biomass. The increase in most photosynthetic indicators or reaction centers of different fluxes was positively impacted by different concentrations and at different times of application. The performance index on an absorption basis, PIABS, and quantum efficiency (φEo) were the most sensitive parameters to applications. Thus, the OJIP methods parameters that incorporate electron transport in addition to the PSII, can indicate useful parameters for determining the physiological performance of a nutritional solution. |
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ISSN: | 0137-5881 1861-1664 |
DOI: | 10.1007/s11738-022-03402-w |