The Effects of Different Salinity Levels and Leaching Fractions on Yield and Water Consumption of Gerbera Plants

Akat, Özlem; Tüzel, I.H.; Özzambak, Mustafa Ercan

doi:10.17660/actahortic.2009.807.30

Cited by 6 publications

(8 citation statements)

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“…where K c is the crop coefficient; t is the greenhouse cover transmission to solar radiation; a is the evaporation coefficient and represents the part of the energy of incoming solar radiation that is transformed to latent heat through transpiration; and l is the latent heat of vaporization of water in kJÁkg -1 . The drainage rate was maintained near 40% to maintain optimal conditions of water supply to the plants (Akat et al, 2009;Maloupa et al, 1993). The greenhouse cover transmission to solar radiation, t, was calculated as the mean ratio of incoming to outside solar radiation.…”

Section: Methodsmentioning

confidence: 99%

Effect of Irrigation Scheduling on Gerbera Flower Yield and Quality

Tsirogiannis¹,

Katsoulas²,

Kittas³

2010

horts

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Better understanding of the effects of irrigation frequency and dose on flower production of gerbera plants (Gerbera jamesonii) can lead to optimal water management and crop yield. Measurements of greenhouse microclimate and production and quality characteristics of a gerbera crop were carried out under two irrigation frequency regimens in soilless cultivation in a greenhouse located in Arta, Greece. Irrigation scheduling was based on solar radiation and performed whenever accumulated solar radiation energy outside the greenhouse reached 1650 kJ·m−2 [high irrigation frequency (HIF)] or 3300 kJ·m−2 [low irrigation frequency (LIF)]. The amount of water applied was 0.125 mm and 0.250 mm for HIF and LIF, respectively. Stem fresh weight, length and thickness, and number of harvested gerbera flowers were measured along with crop evapotranspiration, crop leaf area, and greenhouse microclimate variables. Measurements started 8 months after transplanting and lasted 90 days (May to July). Leaf area, fresh weight, harvested cut flowers, and the main quality characteristics of gerbera flowers (stem length and flower diameter) were unaffected by the irrigation frequency. In the framework of the experiment, simple formulas for calculation of leaf area index were developed. Finally, a first approach study of an alternative remote sensing irrigation control method using a reflectance index was made and the results are presented.

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Section: Methodsmentioning

confidence: 99%

Effect of Irrigation Scheduling on Gerbera Flower Yield and Quality

Tsirogiannis¹,

Katsoulas²,

Kittas³

2010

horts

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“…Furthermore, salt stress reduced crop growth and productivity in sensitive varieties due to the negative effects on biomass, mineral components, hydraulic balance and carbon assimilation (Lauchli and Grattan, 2007). Many projects have been carried out on the effect of salt stress on gerbera (Paradiso, 2003;Akat et al, 2009;Ganege Don et al, 2010;Carmassi et al, 2013), and it has been demonstrated that the heist threshold of salinity without any reduction in yield of substrate-grown gerbera is 1.5 to 2.8 dS • m -1 (Gómez Bellot et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Silicon dioxide-nanoparticle nutrition mitigates salinity in gerbera by modulating ion accumulation and antioxidants

Hajizadeh

Asadi

Zahedi

et al. 2021

Folia Horticulturae

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This work aimed to investigate the interaction between salt stress and the application of silicon dioxide-nanoparticles. In this study, gerbera plants grown in soilless culture were supplied with nutrient solutions with different NaCl concentrations (0, 5, 10, 20 and 30 mM) in combination with SiO2-NPs spray (0, 25 and 50 mg · L−1). Exposure of gerbera to salinity increased sodium concentration but decreased potassium and calcium concentrations in leaf as well as stem length/diameter, fresh/dry weight, leaf/flower number, flower diameter and leaf area. It also increased the activities of antioxidant enzymes and electrolyte leakage. Results indicated that SiO2-NPs could improve growth, biochemical and physiological traits. It increased stem thickness but slightly affected stem length. Flower diameter was not affected by salinity rates up to 10 mM of NaCl. However, a significant difference was observed between controls and plants treated with 30 mM of NaCl. Salinity increased the electrolyte leakage (32.5%), malondialdehyde (83.8%), hydrogen peroxide (113.5%), and the antioxidant enzyme activities such as ascorbate peroxidase (3.4-fold) and guaiacol peroxidase (6-fold) where SiO2-NPs activated them more, except for superoxide dismutase. Under salinity (30 mM), the increase in SiO2-NPs (especially at 25 mg · L−1) led to the increase in the uptake of Ca2+ (25.3%) as well as K+ (27.1%) and decreased absorption of Na+ (6.3%). SiO2-NPs has potential in improving salinity tolerance in gerbera. It seems that the sensitivity threshold of gerbera to the salinity was 10 mM and the use of SiO2-NPs is also effective in non-saline conditions.

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“…Under salinity conditions, flower appearance and weight losses acceleration led to a reduction in vase life [37]. Akat et al [43] found that irrigation with saline water (3 dS m −1 ) reduced gerbera flower yield by 32% when compared to the control (1 dS m −1 ). In this study, the reduction in SPAD and Pn at 40 mM-NaCl treatment was consistently coupled with a significant decrease in flower yield and vase life in both cultivars and across years, 2018-2019.…”

Section: Flower Yield and Qualitymentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi Inoculation Improves Flower Yield and Postharvest Quality Component of Gerbera Grown under Different Salinity Levels

et al. 2022

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High salinity levels of irrigated water and the accumulation of salt over time in the soil is a major concern worldwide, including in Jordan. The objective of this two-year study was to assess the influence of arbuscular mycorrhizal fungi (AMF) inoculation on the physiology, yield, and flower quality of gerbera (Gerbera jamesonii cvs. Beaudine and Palm Beach) under different salinity levels (0.0, 20.0 and 40.0 mM-NaCl). The study was arranged in a randomized complete block design with five replicates. During the experimental period (2018–2019), chlorophyll content index (SPAD), leaf gas exchange (photosynthesis, Pn; stomatal conductance, gs; transpiration, E), flower yield, flower quality (pedicel length and diameter, number of days to flowering, flower diameter, and vase life), root sporulation, and colonization were measured. Irrigation with saline water (20 and 40 mM-NaCl) significantly increased salt accumulation in soil. The mean soil electrical conductivity (EC) after two growing seasons for the 20 mM-NaCl treatment was 2.9 dS m−1 and 4.4 dS m−1 for the 40 mM. High salinity level (40 mM-NaCl) reduced root AMF sporulation by 53–62% and colonization by 12–25% across cultivars. Interestingly, root colonization was higher than 50% across salinity level and in both cultivars. Saline water at 40 mM-NaCl significantly reduced SPAD, Pn, gs, E, flower yield, and quality component, especially vase life. Interestingly, leaf chlorophyll content index from AMF-inoculated plants was significantly higher than uninoculated ones across cultivars at the second growing season. In addition, inoculation with AMF significantly increased yield in both ‘Beaudine’ (34–40%) and ‘Palm Beach’ (42–44%) cultivars and across the study period, 2018 to 2019. In addition, AMF increased vase life in ‘Beaudine’ by 19% to 28% and in ‘Palm Beach’ by 21% to 22%. Overall, our results revealed that gerbera growers can increase their flower yield and postharvest flower quality component (vase life) under saline conditions (soil EC < 4.4 dS m−1) by inoculating the seedlings with AMF.

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The Effects of Different Salinity Levels and Leaching Fractions on Yield and Water Consumption of Gerbera Plants

Cited by 6 publications

References 0 publications

Effect of Irrigation Scheduling on Gerbera Flower Yield and Quality

Effect of Irrigation Scheduling on Gerbera Flower Yield and Quality

Silicon dioxide-nanoparticle nutrition mitigates salinity in gerbera by modulating ion accumulation and antioxidants

Arbuscular Mycorrhizal Fungi Inoculation Improves Flower Yield and Postharvest Quality Component of Gerbera Grown under Different Salinity Levels

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