Physiological characteristics of a promising black locust (Robinia pseudoacacia L.) clone under marginal site conditions

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dc.contributor.authorÁbri, Tamás
dc.date.accessioned2026-01-14T10:46:15Z
dc.date.available2026-01-14T10:46:15Z
dc.date.issued2025-06-08
dc.description.abstractThis paper studies the physiological characteristics of a promising black locust (Robinia pseudoacacia L.) clone, Farkasszigeti, compared to common black locust (control), under marginal site conditions in Eastern Hungary. A clone trial was established in 2022 near Debrecen to test new black locust clones, with measurements of photosynthesis (net assimilation, efficiency of photosystem II, intercellular CO 2 level) and water-use characteristics (transpiration, stomatal conductance, water use efficiency etc.), using LI-6800 (LI-COR) portable photosynthesis system. However, the measured values were very low, indicating drought and heat stress. The results revealed that Farkasszigeti exhibited better net assimilation (2.13±0.75 µmol CO 2 m -2 s -1 ), transpiration (1.41±0.20 mmol H 2 O m -2 s -1 ) and stomatal conductance (0.017±0.002 mol m -2 s -1 ) than the control, with significant differences (p=0.05). Furthermore, its photosystem II was more efficient, thus it has better heat tolerance. Although the clone Farkasszigeti was proved to be better in terms of water use efficiency values, no significant difference was observed in comparison with the control common black locust. Today, under changing climatic conditions, the study of physiological adaptation of tree species and clones has a crucial role.en
dc.formatapplication/pdf
dc.identifier.citationActa Agraria Debreceniensis, No. 1 (2025) , 27-34
dc.identifier.doihttps://doi.org/10.34101/actaagrar/1/15473
dc.identifier.issn2416-1640
dc.identifier.issue1
dc.identifier.jatitleActa agrar. Debr.
dc.identifier.jtitleActa Agraria Debreceniensis
dc.identifier.urihttps://hdl.handle.net/2437/402023en
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/actaagrar/article/view/15473
dc.rights.accessOpen Access
dc.rights.ownerby the Author(s)
dc.subjectblack locust improvementen
dc.subjectphotosynthesisen
dc.subjectwater-use characteristicsen
dc.titlePhysiological characteristics of a promising black locust (Robinia pseudoacacia L.) clone under marginal site conditionsen
dc.typefolyóiratcikkhu
dc.typearticleen
dc.type.detailedidegen nyelvű folyóiratközlemény hazai lapbanhu
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