The Impact of Different Water Regime on Chlorophyll Fluorescence of Pyrus pyraster L. and Sorbus domestica L.

Šajbidorová, Viera; Lichtnerová, Helena; Paganová, Viera

doi:10.11118/actaun201563051575

Cited by 5 publications

(2 citation statements)

References 18 publications

(13 reference statements)

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“…ΦPSII represents the fraction of the light energy used in photochemistry (Genty et al, 1989;Schreiber, 2004). The decrease of photosynthetic assimilation can be well detected by a decrease of ΦPSII, as it was documented also in woody plants (Peguero-Pina et al, 2008, Gallé et al, 2007, Šajbidorová et al 2015.…”

Section: Introductionmentioning

confidence: 74%

Plants Recovery Performance from Water Stress

Šajbidorová

Hillová

Živčák

et al. 2019

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Recovery of plants after water stress events represents their high suitability for the urban condition areas. Reaction to drought and recovery of woody plants Cornus mas L., Lonicera caerulea L. and perennials Alchemilla mollis (Buser) Rothm., Geranium maculatum L., Geranium x magnificum Hyl. ‘Rosemoor’ and Geranium ‘Philippe Vapelle’ were evaluate. Within a pot experiment the non‑destructive methods of monitoring: measurement of chlorophyll content using chlorophyll meter CL‑01, leaf stomatal conductance using Delta T Leaf porometer AP4 and modulated chlorophyll fluorescence using Hansatech FMS 1 were chosen. Based upon our results we may demonstrate different protective mechanisms of plants in water stress conditions. An increase in the chlorophyll concentration in stress‑exposed tissues and recovery of stomatal conductance in Cornus mas L. and in Alchemilla mollis (Buser) Rothm. were observed. In Cornus mas L. and Lonicera caerulea L. the early recovery of parameter ɸPSII (after 2 days of re‑watering) and the delayed recovery (after 6 days of re‑watering) in Geranium plants and Alchemilla mollis (Buser) Rothm.) were shown.

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Section: Introductionmentioning

confidence: 74%

Plants Recovery Performance from Water Stress

Šajbidorová

Hillová

Živčák

et al. 2019

Acta Univ. Agric. Silvic. Mendelianae Brun.

Self Cite

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“…One of the prominent techniques for attaining comprehensive estimates of photosynthetic activities is chlorophyll fluorescence. Chlorophyll fluorescence is an important and fast technique for the examination of photosyntheic activities (Sajbidorova et al, 2015). Plant biochemistry and function of PSII are affected by different abiotic stresses (Yang, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of Drought Stress on Chlorophyll Fluorescence, and Biomass Portioning of Aegilops Tauschii L.

Abbas¹,

CUI²,

Yu³

et al. 2019

Appl. Ecol. Env. Res.

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Aegilops tauschii Coss. is one of the problematic weeds, which competes for resources in wheat crop. Drought stress affects productivity, growth, and development of the crops. A greenhouse experiment was conducted to evaluate the effect of different field capacity levels on biomass partitioning and chlorophyll fluorescence on Aegilops tauschii population of China. Dry biomass, plant height, leaf area (LA), leaf area ratio (LAR), specific leaf area (SLA), and the root-shoot ratio (RSR) fluctuated under different field capacity levels and decreased with increasing drought stress level. Maximum dry biomasses, plant height (1.71 g and 15.6 cm) were observed in 70-80% field capacity while the minimum (0.70 g and 12.7 cm) were observed under 10-20% field capacity (FC) level. In root-shoot ratio maximum (0.72 g) was observed in 50-60% field capacity level while minimum (0.60 g) was observed under 10-20% field capacity level. Similarly, in LAR and SLA the maximum values (111.67 cm, 175.45 cm and 433.59 g) were observed in 70-80% field capacity level while the minimum values (68.78 g, 42.02 g and 86.32 g) were recorded under 10-20% field capacity level. Similarly, drought stress also influences the m maximum fluorescence (Fm) in the light-adapted state and has an effect on the maximum quantum yield of PSII. Similarly, the trend was observed in qP (photochemical quenching) and qN (non-photochemical quenching) like minimal and maximal fluorescence.

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Study of Some Mechanisms of Tolerance and Avoidance of Water Deficit in Barley (Hordeum vulgare L.)

Zerrouki¹,

Regagba²,

Adda³

2019

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Some mechanisms of drought tolerance and avoidance have been studied in eight barley genotypes. These include three local cultivars (Ttichedrett, Beldi, Saida) and five introduced (Malouh, Seg09, Mari29, Awblack, Beecher) which were grown under three different water supply (100% FC, 60% FC, 30% FC). The increase in intensity of the water deficit reduces differently the relative water content among tested genotypes. Thus, in the treatment of 60% FC, this reduction varies between 1% (Beldi) and 6% (Tichedrett, Beecher), while in the lot of 30% FC it reaches the limits of 3% (Beldi) and 18% (Seg09). The results show that plants grown under water deficit (60% CC, 30% FC) accumulate significantly soluble sugars (r = 0.54**) and K+ (r = 0.26**) compared to control plants (100% CC). Thus, under 30% FC, the accumulation of soluble sugars reached values of 195% and 208% observed at Mari29 and Awblack. The accentuation of the water deficit causes a significant reduction of the RWL particularly after 120 mn (r = -0.27**) which is accompanied by an increase of the stomatic resistance (r = 0.53**). To limit dehydration under the water deficit, tested genotypes were distinguished into three groups by adopting avoidance, tolerance or by combining the two strategies.

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The Impact of Different Water Regime on Chlorophyll Fluorescence of Pyrus pyraster L. and Sorbus domestica L.

Cited by 5 publications

References 18 publications

Plants Recovery Performance from Water Stress

Plants Recovery Performance from Water Stress

Effect of Drought Stress on Chlorophyll Fluorescence, and Biomass Portioning of Aegilops Tauschii L.

Study of Some Mechanisms of Tolerance and Avoidance of Water Deficit in Barley (Hordeum vulgare L.)

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