The Response of Ornamental Plants to Saline Irrigation Water

Cassaniti, C.; Romano, Daniela; Flowers, T. J.

doi:10.5772/31787

Cited by 52 publications

(61 citation statements)

References 105 publications

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“…A different response to changes in salinity with respect to the above parameters was also recorded in the two accessions. These results confirm that salinity is one of the major environmental factors limiting the growth and productivity of plants, as already confirmed by available literature [22][23][24][25][26][27].…”

Section: Discussionsupporting

confidence: 90%

Salinity Differentially Affects Growth and Ecophysiology of Two Mastic Tree (Pistacia lentiscus L.) Accessions

Cristiano

Camposeo

Fracchiolla

et al. 2016

Forests

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Pistacia lentiscus (Anacardiaceae; mastic tree) is an evergreen sclerophyll species, largely distributed in dry areas of the Mediterranean basin and well-adapted to severe conditions of drought in very unfertile soils. In the present study, we evaluated the growing responses of two accessions of P. lentiscus to three different levels of salinity under nursery conditions. The two mastic tree accessions (Manfredonia and Specchia) were collected from individual trees in two different sites in the Apulia region (Southern Italy) and subjected to three different levels of salinization by adding 0, 400, and 800 g of salts 100 L´1 of substrate, respectively. The following parameters were recorded: plant height; survival of plants and total root length; total biomass; number of leaves per plant and leaf area; as well as various ecophysiological traits. Salinity reduced the values of all the examined parameters, both morphological and physiological. Results suggested that P. lentiscus can tolerate and accumulate salt at high concentrations in nursery conditions. As a result, it is important to identify germplasm that is highly tolerant to salinity for the production of nursery seedlings that will be planted in saline soils.

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Section: Discussionsupporting

confidence: 90%

Salinity Differentially Affects Growth and Ecophysiology of Two Mastic Tree (Pistacia lentiscus L.) Accessions

Cristiano

Camposeo

Fracchiolla

et al. 2016

Forests

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“…; Cassaniti et al . ), although the exact reaction to salt stress varies widely among species. For example, for the same level of salinity (44 m m NaCl), Bougainvillea glabra and Eugenia myrtiflora did not reduce plant growth, while Cotoneaster lacteus showed a reduction of more than 50% (Cassaniti et al .…”

Section: Discussionmentioning

confidence: 99%

Long‐term effect of salinity on plant quality, water relations, photosynthetic parameters and ion distribution in Callistemon citrinus

Álvarez

Sánchez-Blanco

2013

Plant Biol J

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The effect of saline stress on physiological and morphological parameters in Callistemon citrinus plants was studied to evaluate their adaptability to irrigation with saline water. C. citrinus plants, grown under greenhouse conditions, were subjected to two irrigation treatments lasting 56 weeks: control (0.8 dS·m(-1)) and saline (4 dS·m(-1)). The use of saline water in C. citrinus plants decreased aerial growth, increased the root/shoot ratio and improved the root system (increased root diameter and root density), but flowering and leaf colour were not affected. Salinity caused a decrease in stomatal conductance and evapotranspiration, which may prevent toxic levels being reached in the shoot. Net photosynthesis was reduced in plants subjected to salinity, although this response was evident much later than the decrease in stomatal conductance. Stem water potential was a good indicator of salt stress in C. citrinus. The relative salt tolerance of Callistemon was related to storage of higher levels of Na+ and Cl- in the roots compared with the leaves, especially in the case of Na+, which could have helped to maintain the quality of plants. The results show that saline water (around 4 dS·m(-1)) could be used for growing C. citrinus commercially. However, the cumulative effect of irrigating with saline water for 11 months was a decrease in photosynthesis and intrinsic water use efficiency, meaning that the interaction of the salinity level and the time of exposure to the salt stress should be considered important in this species.

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“…In salt sensitive species, the reduction in plant growth and injury symptoms correlated with increased Cl and/or Na accumulation as well as a reduction in k in leaves. However, some salt-tolerant species accumulate high ion levels in leaves, whereas in other cases the salt tolerance is related to a higher ion concentration in roots in relation to leaves, which is indicative of limited transport to the shoots (Cassaniti et al, 2012). Myrtle plants accumulate Na in roots and limit its transport to the aerial part of the plant, a trait which, along with the retention of Cl in roots, has been proposed as being related to salt tolerance in plants.…”

Section: Tissue Ionmentioning

confidence: 99%

Salts and nutrients present in regenerated waters induce changes in water relations, antioxidative metabolism, ion accumulation and restricted ion uptake in Myrtus communis L. plants

Acosta‐Motos

Álvarez

Barba‐Espín

et al. 2014

Plant Physiology and Biochemistry

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The use of reclaimed water (RW) constitutes a valuable strategy for the efficient management of water and nutrients in landscaping. However, RW may contain levels of toxic ions, affecting plant production or quality, a very important aspect for ornamental plants. The present paper evaluates the effect of different quality RWs on physiological and biochemical parameters and the recovery capacity in Myrtus communis L. plants. M. communis plants were submitted to 3 irrigation treatments with RW from different sources (22 weeks): RW1 (1.7 dS m(-1)), RW2 (4.0 dS m(-1)) and RW3 (8.0 dS m(-1)) and one control (C, 0.8 dS m(-1)). During a recovery period of 11 weeks, all plants were irrigated with the control water. The RW treatments did not negatively affect plant growth, while RW2 even led to an increase in biomass. After recovery,only plants irrigated with RW3 showed some negative effects on growth, which was related to a decrease in the net photosynthesis rate, higher Na accumulation and a reduction in K levels. An increase in salinity was accompanied by decreases in leaf water potential, relative water content and gas exchange parameters, and increases in Na and Cl uptake. Plants accumulated Na in roots and restricted its translocation to the aerial part. The highest salinity levels produced oxidative stress, as seen from the rise in electrolyte leakage and lipid peroxidation. The use of regenerated water together with carefully managed drainage practices, which avoid the accumulation of salt by the substrate, will provide economic and environmental benefits.

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The Response of Ornamental Plants to Saline Irrigation Water

Cited by 52 publications

References 105 publications

Salinity Differentially Affects Growth and Ecophysiology of Two Mastic Tree (Pistacia lentiscus L.) Accessions

Salinity Differentially Affects Growth and Ecophysiology of Two Mastic Tree (Pistacia lentiscus L.) Accessions

Long‐term effect of salinity on plant quality, water relations, photosynthetic parameters and ion distribution in Callistemon citrinus

Salts and nutrients present in regenerated waters induce changes in water relations, antioxidative metabolism, ion accumulation and restricted ion uptake in Myrtus communis L. plants

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