Plasticity of the Root System Architecture and Leaf Gas Exchange Parameters Are Important for Maintaining Bottle Gourd Responses under Water Deficit

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dc.contributor.authorZacarias Rafael, Dinoclaudio
dc.contributor.authorArriagada, Osvin
dc.contributor.authorToro, Guillermo
dc.contributor.authorMashilo, Jacob
dc.contributor.authorMora-Poblete, Freddy
dc.contributor.authorContreras-Soto, Rodrigo Ivan
dc.date.accessioned2025-01-23T19:46:20Z
dc.date.available2025-01-23T19:46:20Z
dc.date.issued2020
dc.description.abstractThe evaluation of root system architecture (RSA) development and the physiological responses of crop plants grown under water-limited conditions are of great importance. The purpose of this study was to examine the short-term variation of the morphological and physiological plasticity of Lagenaria siceraria genotypes under water deficit, evaluating the changes in the relationship between the root system architecture and leaf physiological responses. Bottle gourd genotypes were grown in rhizoboxes under well-watered and water deficit conditions. Significant genotype-water regime interactions were observed for several RSA traits and physiological parameters. Biplot analyses confirmed that the drought-tolerant genotypes (BG-48 and GC) showed a high net CO2 assimilation rate, stomatal conductance, transpiration rates with a smaller length, and a reduced root length density of second-order lateral roots, whereas the genotypes BG-67 and Osorno were identified as drought-sensitive and showed greater values for average root length and the density of second-order lateral roots. Consequently, a reduced length and density of lateral roots in bottle gourd should constitute a response to water deficit. The root traits studied here can be used to evaluate bottle gourd performance under novel water management strategies and as criteria for breeding selection.
dc.description.funderNational Commission for Scientific and Technological Research (CONICYT, Chile) FONDECYT
dc.fuente.origenWOS
dc.identifier.doi10.3390/plants9121697
dc.identifier.issn2223-7747
dc.identifier.urihttps://doi.org/10.3390/plants9121697
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100293
dc.identifier.wosidWOS:000603091100001
dc.issue.numero12
dc.language.isoen
dc.revistaPlants-basel
dc.rightsacceso restringido
dc.subjectrhizoboxes
dc.subjectgaseous exchange
dc.subjectsub-Saharan Africa
dc.subjectroot length density
dc.subject.ods02 Zero Hunger
dc.subject.ods13 Climate Action
dc.subject.odspa02 Hambre cero
dc.subject.odspa13 Acción por el clima
dc.titlePlasticity of the Root System Architecture and Leaf Gas Exchange Parameters Are Important for Maintaining Bottle Gourd Responses under Water Deficit
dc.typeartículo
dc.volumen9
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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