Saline Water, Pit Coating and Calcium Fertilization on Chlorophyll, Fluorescence, Gas Exchange and Production in Passion Fruit

Bezerra, Marlene Alexandrina Ferreira; Cavalcante, Lourival Ferreira; Bezerra, Francisco Marcus Lima; Silva, Aldeir R.; Oliveira, Flaviano Fernandes de; Medeiros, Sherly. A. S.

doi:10.5539/jas.v11n2p319

Cited by 8 publications

(10 citation statements)

References 17 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the experiments summarized here, the Chl (a 1 b) and Chl a content increased and then decreased with [Ca 21 ], whereas that of Chl b decreased. Similar results were observed for passion fruit, except for the Chl a/b ratio (Bizarre et al, 2019), which has been associated with plant species and growth environment (Liang et al, 2009). For American ginseng, when [Ca 21 ] was 320.34 mgÁL À1 , the Chl a/b ratio was 2.04, at which point P n , Y(II), and E k reached maximum values.…”

Section: Discussionsupporting

confidence: 77%

“…Under a given environmental condition, successful regulation of such partitioning is aimed at maximal values of Y(II), with a maximal ratio of Y(NPQ)/Y(NO). High values of Y(NPQ) are indicative of a high photoprotective capacity, whereas high values of Y(NO), mainly caused by closed PS II reaction centers, reflect the inability of a plant to protect itself against damage by excess illumination (Bizarre et al, 2019;Klughammer and Schreiber, 2008). Y(NPQ) is linked to the xanthophyll cycle, which involves nonphotochemical quenching of excess light energy in PS II (Jahns and Holzwarth, 2012).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Calcium Affects Growth and Physiological Indices of Panax quinquefolium L.

Zhang

Sun

Lei

et al. 2022

horts

View full text Add to dashboard Cite

Calcium (Ca) is necessary for plant growth and stress resistance, which are essential for the successful cultivation of Panax quinquefolium L. (American ginseng). However, information about the physiology of Ca nutrition in this species is limited. Therefore, the objective of this study was to determine the effect of Ca on the growth and physiological performance of American ginseng. Two-year-old American ginseng plants were supplemented with the following Ca concentrations [Ca2+] in a hydroponic system: 0, 160.17, 320.34, 640.68, and 961.02 mg⋅L−1. Measurements included growth biomass accumulation, chlorophyll (Chl) content and fluorescence, photosynthetic parameters, antioxidant enzyme activity, root activity, and malondialdehyde content. Biomass, stem height, leaf area, maximum photochemical efficiency, and superoxide dismutase activity peaked at [Ca2+] of 640.68 mg⋅L−1. Actual photochemical efficiency, minimum saturating irradiance, photosynthetic rate, catalase and peroxidase activities, and root activity reached their maximum at [Ca2+] of 320.34 mg⋅L−1. Stem diameter and regulated thermal energy dissipation increased with [Ca2+]. The sum of nonregulated heat dissipation and fluorescence emission and malondialdehyde content decreased to a minimum at [Ca2+] of 320.34 mg⋅L−1. The Chl content reached a maximum at [Ca2+] of 160.17 mg⋅L−1, but the Chl a/b ratio increased with [Ca2+]; the actual photochemical efficiency and photosynthetic rate reached their maximum level at Chl a/b ratios of 2.04 and [Ca2+] of 320.34 mg⋅L−1. Therefore, the optimal [Ca2+] for American ginseng growth was 320.34 mg⋅L−1. Furthermore, an appropriate increase [Ca2+] in the growth medium may improve biomass accumulation, light energy utilization efficiency, and stress resistance in American ginseng.

show abstract

Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Calcium Affects Growth and Physiological Indices of Panax quinquefolium L.

Zhang

Sun

Lei

et al. 2022

horts

View full text Add to dashboard Cite

show abstract

“…As a consequence, there is a decrease in growth and leaf expansion, which induces stomatal closure and results in inhibition of the photosynthetic rate (Taiz, Zeiger, Moller, & Murphy, 2017). The excessive accumulation of toxic ions such as chlorine (Cl -) and sodium (Na + ) causes nutritional imbalance, due to the lower availability, absorption and transport of nitrogen (N) and potassium (K), two essential macronutrients for the physiological and biochemical processes of plants (M. A. F. Bezerra et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the production of quality seedlings is of great importance for the establishment of culture in the field, especially in salinized areas, because salinity alters the hormonal balance, increases the production of reactive oxygen species, influences growth, and decreases the quality of seedlings (M. A. F. Bezerra et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Morphophysiology of yellow passion fruit seedlings under application of nitrogen and potassium and irrigation with high-salinity water

Figueiredo

Nóbrega

Fátima

et al. 2020

Semina: Ciênc. Agrár.

View full text Add to dashboard Cite

Salinity is one of the most problematic abiotic stresses in agriculture globally, especially in semi-arid regions. Thus, the application of nutrients, such as nitrogen and potassium to improve plant nutritional conditions may be a viable alternative to minimize the negative effects of saline stress. Therefore, the aim of this study was to evaluate the morphophysiological behavior of yellow passion fruit seedlings under varying nitrogen and potassium doses and irrigation with salt water. The experimental design was a randomized complete block with a 5 x 5 incomplete factorial scheme, generated from the Central Composite Design with five electrical conductivities of irrigation water (0.5, 0.98, 2.15, 3.32, and 3. 80 dS m-1) and five increasing doses of nitrogen and potassium (0.0, 29.08, 100.0, 170.92, and 200.0%). Leaf, stem, and root dry phytomass and gas exchange were evaluated 75 days after sowing. The increase in salinity had negative effects on the morphological and physiological characteristics of yellow passion fruit seedlings. The application of nitrogen and potassium positively influenced photosynthetic rate and leaf and root dry phytomasses. The application of nitrogen and potassium increased intercellular CO2 concentration and transpiration in yellow passion fruit seedlings under saline stress.

show abstract

“…The deleterious effects of salinity under the physiological aspects of the crops are reported by several authors, such as Bosco et al (2015) in eggplant plants (Solanum melongena L.), Bezerra et al (2019) in yellow passion fruit (Passiflora edulis Sims.) and Silva et al (2019) in basil (Ocimum basilicum L.).…”

Section: Introductionmentioning

confidence: 89%

Photosynthesis of Physalis peruviana under different densities of photons and saline stress

et al. 2021

View full text Add to dashboard Cite

Physalis peruviana L. is a solanacea that has been gaining prominence due to its fruits presenting good acceptance in the national and international market. However, several abiotic factors, such as salinity, can cause physiological disturbances in plants, and these changes may be of greater or lesser intent according to species. Therefore, the objective of the present work was to evaluate the physiological behavior of P. peruviana submitted to different fluxes of photosynthetically active photons (PPFD) and saline stress. The experimental design was a randomized block design with three saline levels (ECw) (0.5, 2.75 and 5.00 dS m-1) with four replications. Gas exchange measurements were performed with a portable infrared gas analyzer. Liquid CO2 assimilation, stomatal conductance, internal CO2 concentration, water use efficiency and instantaneous carboxylation efficiency were measured. Data were subjected to analysis of variance by F test and in cases of significance applied to regression analysis. The increase in PPFD provided reductions in stomatal conductance up to the density of approximately 400 μmol m-2s-1, being more pronounced in ECw of 2.75 and 5.0 dS m-1. The maximum CO2 assimilation rates in the three salinities are different according to the PPFD. The salinity of irrigation water reduced the quantum efficiency of photosynthesis in P. peruviana plants.

show abstract

Saline Water, Pit Coating and Calcium Fertilization on Chlorophyll, Fluorescence, Gas Exchange and Production in Passion Fruit

Cited by 8 publications

References 17 publications

Calcium Affects Growth and Physiological Indices of Panax quinquefolium L.

Calcium Affects Growth and Physiological Indices of Panax quinquefolium L.

Morphophysiology of yellow passion fruit seedlings under application of nitrogen and potassium and irrigation with high-salinity water

Photosynthesis of Physalis peruviana under different densities of photons and saline stress

Contact Info

Product

Resources

About