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Fig. 3 | Chemical and Biological Technologies in Agriculture

Fig. 3

From: Physiological, molecular, and genetic mechanism of action of the biostimulant Quantis™ for increased thermotolerance of potato (Solanum tuberosum L.)

Fig. 3

Chlorophyll fluorescence of Quantis™-treated and untreated (water-control) detached fully expanded terminal potato (cv. Maris Piper) leaves. a, b Quantum yield (QY), (c,d) non-photochemical quenching (NPQ) measured at 7 days post-application using a closed 800C FluorCam imaging fluorometer (PSI, Czech Republic). Data represent mean ± SEM of seven biological replicates per treatment with two experimental replicates. Asterisk indicates significant difference according to Student’s t test, p < 0.05

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