Potential Implications of Elevated CO<sub>2</sub> on Physiochemical Parameters in Peanut (<i>Arachis hypogaea</i> L.) Genotypes
2023
Nicola Novello | Joel B. Johnson | Kerry B. Walsh | Haydee Laza | Mani Naiker
Three peanut genotypes were cultivated under ambient and elevated CO<sub>2</sub> conditions. Elevated CO<sub>2</sub> treatment was associated with higher total phenolic content (TPC) values in the shoots and roots of all genotypes. Seeds showed lower levels of TPC compared to the other plant tissue, showing a decline in all three genotypes, and no differences between the CO<sub>2</sub> treatments were observed. The Crude Protein (CP) content in seeds varied significantly among the genotypes, and elevated CO<sub>2</sub> treatment was associated with mild increases (not significant) in CP of 4 and 6% in Holt and Alloway cultivars, respectively. It is worth mentioning that Kairi contained the highest CP content under elevated CO<sub>2</sub> (29%).
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