Impact of drought stress on photosynthetic response, leaf water potential, and stem sap flow in two cultivars of bi-leader apple trees (Malus × domestica Borkh.)

Bhusal, Narayan; Han, Seungbaek; Yoon, Tae-Myung

doi:10.1016/j.scienta.2018.11.021

Cited by 149 publications

(113 citation statements)

References 38 publications

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“…SPAD value represents a parameter to evaluate the chlorophyll content. Change in the chlorophyll content is demonstrated as an indicator of plant status under stress conditions and many studies have reported that drought stress decreases the chlorophyll content in leaves (Hamann et al, 2018;Bhusal et al, 2019). In our study, loss in chlorophyll was less in Red Chief on MM106 for both moderate and severe drought stresses compared to the control.…”

Section: Discussionsupporting

confidence: 53%

“…Leaf relative water content is another indicator of drought stress reflecting plant cellular osmotic adjustment under cellular dehydration (Hamann et al, 2018). Decrease in leaf water status prevents chlorophyll functioning (Guerfel et al, 2009;Bhusal et al, 2019). Thus, greater reduction in chlorophyll in M9 may be due to the severe reduction in LRWC under severe drought stress condition.…”

Section: Journal Of Agricultural Studiesmentioning

confidence: 99%

“…Apple cultivation under drought conditions causes several deleterious effects which includes increases in reactive oxygen species (ROS), reduction in nutrient uptake, and damages in cell membranes (Šircelj et al, 2007;Bhusal et al, 2019). ROS cause oxidative stress that damages chlorophyll membranes (Fita et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Responses of Apple Plants to Drought Stress

Aras¹,

Keleş²

2019

JAS

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In order to screen apple rootstocks for drought tolerance, two different drought levels moderate and severe stress, and a control were applied to apple cultivar Red Chief grafted onto M9 and MM106 rootstocks. Apple plants were subjected to drought stress by withholding water for 15 and 19 days in the greenhouse conditions, while the control treatment was continued watering. Data were recorded 15 (moderate drought stress) and 19 days (severe drought stress) after application of drought stress. At the end of the experiment, both rootstocks were significantly affected under drought conditions. Severe drought stress caused decrease in SPAD value in Red Chief grafted onto M9 and MM106 by 15.7 % and 11.1 %, respectively. Severe drought stress declined anthocyanin content in M9 and MM106 by 7.8 % and 28.4 %, respectively. Stomatal conductance was remarkably affected by drought stress. Effects of drought stress on plants depended on rootstocks, severity and duration of drought stress. As a result, the more invigorating rootstock MM106 was found more drought-tolerant when compared to M9 that is needed to be evaluated with more parameters.

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Section: Discussionsupporting

confidence: 53%

Section: Journal Of Agricultural Studiesmentioning

confidence: 99%

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Responses of Apple Plants to Drought Stress

Aras¹,

Keleş²

2019

JAS

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“…For example, anatomical structures of leaves such as palisade parenchyma and stomatal density, and leaf morphology such as leaf thickness and specific leaf weight, regulate the physiological functions (i.e., photosynthesis and transpiration), which vary in different cultivars or clones [35]. Moreover, during drought conditions, gs is directly affected, and the consequent stomatal closure is a way of reducing the water loss due to leaf transpiration and the susceptibility of xylem vessels to cavitation (i.e., embolism or dysfunction) that results in a reduction in hydraulic conductance [36,37]. Therefore, since drought-resistance is a multiple control mechanism, it is the conjunction of several factors, not just one factor, that represents the true degree of each taxon's water consumption and drought-resistance [38,39].…”

Section: Introductionmentioning

confidence: 99%

Variability and Plasticity in Cuticular Transpiration and Leaf Permeability Allow Differentiation of Eucalyptus Clones at an Early Age

Carignato

Vázquez‐Piqué

Tapias

et al. 2019

Forests

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Background and Objectives. Water stress is a major constraining factor of Eucalyptus plantations’ growth. Within a genetic improvement program, the selection of genotypes that improve drought resistance would help to improve productivity and to expand plantations. Leaf characteristics, among others, are important factors to consider when evaluating drought resistance evaluation, as well as the clone’s ability to modify leaf properties (e.g., stomatal density (d) and size, relative water content at the time of stomatal closure (RWCc), cuticular transpiration (Ec), specific leaf area (SLA)) according to growing conditions. Therefore, this study aimed at analyzing these properties in nursery plants of nine high-productivity Eucalyptus clones. Material and Methods: Five Eucalyptus globulus Labill. clones and four hybrids clones (Eucalyptus urophylla S.T. Blake × Eucalyptus grandis W. Hill ex Maiden, 12€; Eucalyptus urograndis × E. globulus, HE; Eucalyptus dunnii Maiden–E. grandis × E. globulus, HG; Eucalyptus saligna Sm. × Eucalyptus maidenii F. Muell., HI) were studied. Several parameters relating to the aforementioned leaf traits were evaluated for 2.5 years. Results: Significant differences in stomatal d and size, RWCc, Ec, and SLA among clones (p < 0.001) and according to the dates (p < 0.001) were obtained. Each clone varied seasonally the characteristics of its new developing leaves to acclimatize to the growth conditions. The pore opening surface potential (i.e., the stomatal d × size) did not affect transpiration rates with full open stomata, so the water transpired under these conditions might depend on other leaf factors. The clones HE, HG, and 12€ were the ones that differed the most from the drought resistant E. globulus control clone (C14). Those three clones showed lower leaf epidermis impermeability (HE, HG, 12€), higher SLA (12€, HG), and lower stomatal control under moderate water stress (HE, HG) not being, therefore, good candidates to be selected for drought resistance, at least for these measured traits. Conclusions: These parameters can be incorporated into genetic selection and breeding programs, especially Ec, SLA, RWCc, and stomatal control under moderate water stress.

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“…Global water shortages are aggravated by changes due to increasing CO 2 concentrations and the warming climate [5,6]. The increase in CO 2 can cause global climate change and directly affect the metabolism and growth of plants [7,8].Drought affects plant growth and development severely [9,10], as well as limits photosynthesis through carbon metabolism by restricting CO 2 diffusion [11,12]. However, plants display adaptability and resistance to water deficits [13,14].…”

Section: Introductionmentioning

confidence: 99%

Experimental and simulated CO₂ responses of photosynthesis in leaves of Hippophae rhamnoides L. under different soil water conditions

Wu¹,

C²,

Chen³

2019

Preprint

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CO 2 concentrations and soil moisture conditions seriously affect tree growth and physiological mechanisms. CO 2 responses of photosynthesis are an important part of plant physiology and ecology research. This study investigated the photosynthetic CO 2 responses in the leaves of two-year-old Hippophae rhamnoides L. under eight soil water conditions in a semi-arid loess hilly region, and discussed the quantitative relationship between CO 2 responses and soil moisture. CO 2 response curves and parameters were fitted using a rectangular hyperbola model, non-rectangular hyperbola model, exponential equation, and modified rectangular hyperbola model. Results revealed that the relative soil water content (RWC) required to maintain a high photosynthetic rate (P n ) and carboxylation efficiency (CE) ranged from 42.8% to 83.2%. When RWC fell outside these ranges, the photosynthetic capacity (P nmax ), CE, and CO 2 saturation point (CSP) decreased. CO 2 response curves and three parameters, CE, CO 2 compensation point (Γ), and photorespiration rate (R p ), were well fitted by the four models when RWC was appropriate. When RWC exceeded the optimal range, only the modified rectangular hyperbola model fitted the CO 2 response curves and photosynthetic parameters better.

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Impact of drought stress on photosynthetic response, leaf water potential, and stem sap flow in two cultivars of bi-leader apple trees (Malus × domestica Borkh.)

Cited by 149 publications

References 38 publications

Responses of Apple Plants to Drought Stress

Responses of Apple Plants to Drought Stress

Variability and Plasticity in Cuticular Transpiration and Leaf Permeability Allow Differentiation of Eucalyptus Clones at an Early Age

Experimental and simulated CO₂ responses of photosynthesis in leaves of Hippophae rhamnoides L. under different soil water conditions

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Impact of drought stress on photosynthetic response, leaf water potential, and stem sap flow in two cultivars of bi-leader apple trees (Malus × domestica Borkh.)

Cited by 149 publications

References 38 publications

Responses of Apple Plants to Drought Stress

Responses of Apple Plants to Drought Stress

Variability and Plasticity in Cuticular Transpiration and Leaf Permeability Allow Differentiation of Eucalyptus Clones at an Early Age

Experimental and simulated CO2 responses of photosynthesis in leaves of Hippophae rhamnoides L. under different soil water conditions

Contact Info

Product

Resources

About

Experimental and simulated CO₂ responses of photosynthesis in leaves of Hippophae rhamnoides L. under different soil water conditions