The effects of salt stress on ornamental plants and integrative cultivation practices

García‐Caparrós, Pedro; Lao, María Teresa

doi:10.1016/j.scienta.2018.06.022

Cited by 70 publications

(67 citation statements)

References 124 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results showed that the greatest increments in Na + contents occurred in D. erecta and C. roseus, and the smallest ones in the species I. coccinea ( Figure 5A). Based on these results it is clear that the best indicators of salt tolerance observed for I. coccinea, i.e., maintenance of leaf gas exchanges, chlorophyll index, and leaf morphological characteristics, can be explained mostly by the capacity to maintain low concentrations of Na + in photosynthesizing tissues, as also found by other authors in different species (Muuns & Tester, 2008;Cassaniti et al, 2009Cassaniti et al, , 2013Liu et al, 2017;García-Caparrós & Lao, 2018). Intrinsic characteristics of this species, including low E (Figures 1E and F) and SLA ( Figure 4B), may contribute to reduce the accumulation of potentially toxic ions in the leaves.…”

Section: Resultssupporting

confidence: 75%

Morphophysiological responses and mechanisms of salt tolerance in four ornamental perennial species under tropical climate

Lacerda

Oliveira

Neves

et al. 2020

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

Salinity affects growth and quality of ornamental plants, but studies on mechanisms of salt tolerance in these plants are scarce, particularly under tropical climate conditions. Thus, the morphophysiological leaf responses of four tropical ornamental species were studied, in order to identify the mechanisms involved in the tolerance to salinity and their potentials to be irrigated with brackish water. The research was conducted in a greenhouse using a completely randomized block design, in a 10 x 4 factorial scheme, with four repetitions. The treatments consisted of ten levels of electrical conductivity of irrigation water (0.5; 1.0; 2.0; 3.0; 4.0; 5.0; 6.0; 8.0; 10.0 and 12.0 dS m-1) and four ornamental tropical species (Catharanthus roseus, Allamanda cathartica, Ixora coccinea, and Duranta erecta). At 30 and 60 days after the beginning of saline treatments (DAST), measurements of leaf gas exchange and chlorophyll index were performed. At 60 DAST, leaf area, specific leaf area, leaf area ratio, leaf succulence, Na+ and proline concentrations were measured. The physiological and morphophysiological responses of the leaves indicate that I. coccinea species has high capacity to grow under irrigation with saline water. Its higher tolerance to salinity is related to the lower concentration of Na+ in the leaves. Conversely, the sensitivity of D. erecta was associated with high Na+ and proline concentrations in leaves. The leaf concentration of proline showed to be an indicator more related to the sensitivity of ornamental plants to salt stress; however this relationship should not be generalized for all ornamental species studied.

show abstract

Section: Resultssupporting

confidence: 75%

Morphophysiological responses and mechanisms of salt tolerance in four ornamental perennial species under tropical climate

Lacerda

Oliveira

Neves

et al. 2020

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

show abstract

“…Saline conditions may cause a change in leaf area in ornamental species [43]. Our results showed that under high EC of the nutrient solution there was a reduction in the leaf area.…”

Section: Discussionmentioning

confidence: 51%

Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

et al. 2020

Self Cite

View full text Add to dashboard Cite

We evaluated two osmotic adjustment substances (glycine betaine (GB) and glycine (G) and a combination of both glycine + glycine betaine (G + GB) using two modes of application; irrigation and foliar sprays with Dracaena sanderiana plants. The plants were grown in containers and subjected to two levels of NaCl concentrations (2.0 and 7.5 dS m−1) over 8 weeks. Growth, pigment concentrations, and physiological parameters were assessed at the end of the trial. The foliar application of GB resulted in most optimal plant growth and biomass production in the presence of NaCl. The chlorophyll and carotenoid concentrations showed different trends depending on the osmotic adjustment substance applied and the mode of application. Stomatal density and dimensions varied considerably with respect to the osmotic adjustment substance supplied. The concentration of soluble sugars in leaves did not show a clear trend under the different treatments assessed. The exogenous application of G resulted in the highest concentration of free proline and proteins in leaves. The antioxidant capacity in leaves increased with both osmotic adjustment substances, and both means of application, under low and high saline conditions. We concluded that the foliar application of GB can be recommended in order to achieve cost-effective growth of D. sanderiana under saline conditions.

show abstract

“…The above results agree with the findings of several authors that have studied the effect of salinity on various ornamental plant species. García-Caparrós and Lao [46] state that salinity could bring forward and shorten the duration of anthesis. Salinity has been reported to decrease the inflorescence number in gerbera [47,48], different cultivars of Rosa x hybrida L. [48,49], Matricaria chamomilla [50], inflorescence length in Eustoma grandiflorum [18] as well as the peduncle length / stem length (measured from the basis of the plant to the first flower) in Dianthus caryophyllus, Gerbera jamesonii L [47], Eustoma grandiflorum [18], Rosa hybrida 'Kardinal' [51], and Matricaria chamomilla [50].…”

Section: Plant Growthmentioning

confidence: 99%

The Effect of Salinity on the Growth of Lavender Species

Paraskevopoulou

Karantzi

Λιακόπουλος

et al. 2020

Water

View full text Add to dashboard Cite

Long term degradation of water quality from natural resources has led to the use of alternative water resources for irrigation that are saline. Saline water irrigation in floriculture for the production of nursery crops requires an understanding of plant response. The pot growth of four lavender species (Lavandula angustifolia, Lavandula dentata var. dentata, Lavandula dentata var. candicans and Lavandula stoechas) irrigated with water containing different concentrations of NaCl (0, 25, 50, 100 and 200 mM) was investigated under greenhouse conditions. Overall results of different plant growth variables were consistent, showing a significant decrease at 100 and 200 mM NaCl. All lavender species showed signs of salinity stress that included chlorosis, followed by leaf and stem necrosis at NaCl concentrations greater than 50 mM. L. dentata var. dentata showed the greatest plant growth followed in descending order by L. dentata var. candicans, L. stoechas and L. angustifolia. Despite greater growth of L. dentata var. dentata, the appearance of L. dentata var. candicans was “healthier”. In areas with saline irrigation water, L. dentata var. dentata and L. dentata var. candicans are proposed for the production of lavender nursery crops.

show abstract

The effects of salt stress on ornamental plants and integrative cultivation practices

Cited by 70 publications

References 124 publications

Morphophysiological responses and mechanisms of salt tolerance in four ornamental perennial species under tropical climate

Morphophysiological responses and mechanisms of salt tolerance in four ornamental perennial species under tropical climate

Effects of Exogenous Application of Osmotic Adjustment Substances on Growth, Pigment Concentration, and Physiological Parameters of Dracaena sanderiana Sander under Different Levels of Salinity

The Effect of Salinity on the Growth of Lavender Species

Contact Info

Product

Resources

About