Association of photosynthetic traits with water use efficiency and SPAD chlorophyll meter reading of Jerusalem artichoke under drought conditions

Puangbut, D.; Jogloy, Sanun; Vorasoot, Nimitr

doi:10.1016/j.agwat.2017.04.001

Cited by 43 publications

(34 citation statements)

References 33 publications

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“…In this condition, the leaf thickness can decrease, which is also associated with the RWC and cell volume reductions, and this results in more Chl per unit of area (Arunyanark et al 2008). An increase in the Chl density under WD was already described by Puangbut et al (2017) in artichoke genotypes (Cynara scolymus L.).…”

Section: Discussionmentioning

confidence: 86%

Differential response of photosystem II and I photochemistry in leaves of two Crambe abyssinica Hochst lineages submitted to water deficit

Braga¹,

Martins²,

Bonomo³

et al. 2020

Photosynt.

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Water stress is one of the most important abiotic factors affecting plants worldwide. This study compared the photochemical responses of two lineages of Crambe abyssinica (FMS CR 1307 and 1326) under water deficit (WD) conditions. The relative water content (RWC), stomatal conductance, chlorophyll (Chl) index, and Chl a fluorescence were evaluated. FMS CR 1326 showed greater reductions in RWC under WD. The FMS CR 1307 showed greater reductions in the connectivity of energy (L-band) and electron transfer from the oxygen-evolving complex (K-band), followed by a lower ability to maintain the reduction of plastoquinone. However, the increased size of the pool of the final electron acceptors in PSI for this lineage was observed. The FMS CR 1326 plant lineage showed an advantage over the FMS CR 1307 in terms of stability and efficiency of PSII under low water availability conditions.

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Section: Discussionmentioning

confidence: 86%

Differential response of photosystem II and I photochemistry in leaves of two Crambe abyssinica Hochst lineages submitted to water deficit

Braga¹,

Martins²,

Bonomo³

et al. 2020

Photosynt.

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“…Most of the studies showed average gas exchange values under different water conditions. As mentioned above, the WUE i , or photosynthetic water use efficiency, is obtained from the quotient between net photosynthesis and stomatal conductance, (A N /g s ) and is largely used to qualify drought resistance or water scarcity responses in plants [27,28]. However, there is a strong mathematical influence of g s upon WUE i , because the soil water depletion is followed by a progressive reduction in g s thus WUE is largely dependent on the soil water availability for the plant [26,29,30].…”

Section: Introductionmentioning

confidence: 99%

Variability in Water Use Efficiency of Grapevine Tempranillo Clones and Stability over Years at Field Conditions

et al. 2019

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One way to face the consequences of climate change and the expected increase in water availability in agriculture is to find genotypes that can sustain production at a lower water cost. This theoretically can be achieved by using genetic material with an increased water use efficiency. We compared the leaf Water Use Efficiency (WUEi) under realistic field conditions in 14 vine genotypes of the Tempranillo cultivar (clones), in two sites of Northern Spain for three and five years each to evaluate (1) if a clonal diversity exists for this traits among those selected clones and (2) the stability of those differences over several years. The ranking of the different clones showed significant differences in WUEi that were maintained over years in most of the cases. Different statistical analyses gave coincident information and allowed the identification of some clones systematically that had a higher WUEi or a lower WUEi. These methods also allowed the identification of the underlying physiological process that caused those differences and showed that clones with a higher WUEi are likely to have an increased photosynthetic capacity (rather than a different stomatal control). Those differences could be useful to orientate the decision for vines selection programs in the near future.

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“…SPAD chlorophyll meter readings allow for rapid assessment of chlorophyll density in plants (Puangbut et al, 2017). The chlorophyll content is a good indicator of the "stay-green" trait of photosynthetic tissue (Fotovat et al, 2007).…”

Section: Spad Chlorophyll Readingsmentioning

confidence: 99%

Root-based characterization of intergeneric hybrids with Triticum and Aegilops species in early vegetative and stem elongation growth stages

Akman

2021

Anatolian Journal of Botany

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Cultivated and wild species of wheat are valuable breeding resources used for the development of new cultivars with superior root traits suited to drought and non-stressed conditions. The present study aimed to determine genotypes with superior root traits and phenotypic variability among intergeneric hybrids with Triticum and Aegilops species in the early vegetative (Z11) and stem elongation (Z31) growth stages. Results indicated that phenotypic variability in rooting depth was 3.2- and 3.4-fold among the genotypes in Z11 and Z31, and it was as great as 20- and 23.8-fold for root biomass, respectively. Hierarchical clustering among 35 genotypes for root traits in both growth stages identified four major clusters, grouping the six deep-rooted genotypes in cluster 2 and three genotypes with high root biomass in cluster 1. In both growth stages, significant associations were found among the root traits. Also, the relationship was stronger between the root and shoot biomass in Z11 (r2=0.83) than in Z31 (r2=0.44). As an overall assessment, the suggested genotypes with superior root characteristics such as deep roots and/or high root biomass sustained in both growth stages might be used for the development of new cultivars.

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Association of photosynthetic traits with water use efficiency and SPAD chlorophyll meter reading of Jerusalem artichoke under drought conditions

Cited by 43 publications

References 33 publications

Differential response of photosystem II and I photochemistry in leaves of two Crambe abyssinica Hochst lineages submitted to water deficit

Differential response of photosystem II and I photochemistry in leaves of two Crambe abyssinica Hochst lineages submitted to water deficit

Variability in Water Use Efficiency of Grapevine Tempranillo Clones and Stability over Years at Field Conditions

Root-based characterization of intergeneric hybrids with Triticum and Aegilops species in early vegetative and stem elongation growth stages

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