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dc.contributor.authorDaymond, A.-
dc.contributor.authorTricker, P.-
dc.contributor.authorHadley, P.-
dc.identifier.citationBiologia Plantarum: journal for experimental botany, 2011; 55(1):99-104-
dc.description.abstractVariation in photosynthetic parameters was observed between eight contrasting cacao (Theobroma cacao) genotypes. Net photosynthetic rate (PN) ranged from 3.4 to 5.7 μmol(CO2) m−2 s−1 for the genotypes IMC 47 and SCA 6, respectively. Furthermore, genotypic differences were detected in quantum efficiency ranging from 0.020 to 0.043 μmol(CO2) μmol−1(photon) for UF 676 and AMAZ 15/15, respectively. Differences in PN were correlated with both stomatal conductance (gs) and leaf nitrogen per unit area. Some variation in water use efficiency was observed between genotypes, both intrinsic (PN/gs) and instantaneous (PN/transpiration rate). Both measures of water use efficiency were a negative function of specific leaf area. Evidence was found for a trade-off mechanism between cacao genotypes in photosynthesis and leaf structure. High photosynthetic rate, expressed on a mass basis was associated with smaller leaves. Furthermore, thinner leaves were compensated for by a higher nitrogen content per unit mass.-
dc.description.statementofresponsibilityA. J. Daymond, P. J. Tricker, P. Hadley-
dc.publisherInstitute of Experimental Botany of the Academy of Sciences of the Czech Republic-
dc.rights© Springer, Part of Springer Science+Business Media-
dc.subjectLight response curves, quantum efficiency, specific leaf area-
dc.titleGenotypic variation in photosynthesis in cacao is correlated with stomatal conductance and leaf nitrogen-
dc.typeJournal article-
dc.identifier.orcidTricker, P. [0000-0002-1626-3556]-
Appears in Collections:Agriculture, Food and Wine publications
Aurora harvest 7

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