Response of 10 aster species to saline water irrigation

Shasha Wu, Youping Sun, Genhua Niu, James Altland, Raul Cabrera

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Asteraceae is one of the largest plant families with many important garden ornamental species. Salt tolerance of 10 aster perennials was evaluated in a greenhouse experiment, including the following: damianita (Chrysactinia mexicana), gregg’s mistflower (Eupatorium greggii), shasta daisy (Leucanthemum ´superbum ‘Becky’), blackfoot daisy (Melampodiumleucanthum), lavender cotton (Santolina chamaecyparissus), aromatic aster (Symphyotrichum oblongifolium), copper canyon daisy (Tagetes lemmonii), fournerve daisy (Tetraneuris scaposa), skeleton-leaf goldeneye (Viguiera stenoloba), and zexmenia (Wedelia texana). Plants were irrigated with nutrient solution at electrical conductivity (EC) of 1.2 dS·m-1 (control) or saline solutions at EC of 5.0 or 10.0 dS·m-1 (EC 5 or EC 10) for 5 weeks. Upon termination, growth parameters, foliar salt damage, relative chlorophyll content [Soil-Plant Analysis Development (SPAD) readings], and mineral concentration were measured. Gregg’s mistflower, skeleton-leaf goldeneye, and lavender cotton were themost salt-tolerant species with less reductions in shoot dry weight (DW) in both EC 5 and EC 10. Considering the relatively severe foliar salt damage (visual quality score of 3.1 and 2.7 at EC 5; 2.4 and 1.6 at EC 10) and mortality rate (10% and 40%) in EC 10, aromatic aster and zexmenia should be avoided where poor quality water may be used for irrigation. Gregg’s mistflower and skeleton-leaf goldeneye had relatively lower leaf sodium (Na) concentrations suggesting that both species can selectively exclude Na. Damianita and the four daisies, i.e., blackfoot daisy, copper canyon daisy, four-nerve daisy, and shasta daisy, were salt sensitive as evidenced by their greater growth reduction, foliar salt damage, and high Na and chlorine (Cl) accumulation in leaves, and should be avoided in landscapes where poor quality water may be used for irrigation.

Original languageEnglish (US)
Pages (from-to)197-201
Number of pages5
JournalHortScience
Volume51
Issue number2
StatePublished - Feb 1 2016

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Aster (Asteraceae)
saline water
electrical conductivity
irrigation
Leucanthemum superbum
Santolina chamaecyparissus
salts
skeleton
canyons
leaves
Symphyotrichum oblongifolium
Tetraneuris
aromatic compounds
water quality
Wedelia
copper
Tagetes
Eupatorium
chlorine
salt tolerance

All Science Journal Classification (ASJC) codes

  • Horticulture

Keywords

  • Asteraceae
  • Physiological response
  • Salt tolerance

Cite this

Wu, S., Sun, Y., Niu, G., Altland, J., & Cabrera, R. (2016). Response of 10 aster species to saline water irrigation. HortScience, 51(2), 197-201.
Wu, Shasha ; Sun, Youping ; Niu, Genhua ; Altland, James ; Cabrera, Raul. / Response of 10 aster species to saline water irrigation. In: HortScience. 2016 ; Vol. 51, No. 2. pp. 197-201.
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Wu, S, Sun, Y, Niu, G, Altland, J & Cabrera, R 2016, 'Response of 10 aster species to saline water irrigation', HortScience, vol. 51, no. 2, pp. 197-201.

Response of 10 aster species to saline water irrigation. / Wu, Shasha; Sun, Youping; Niu, Genhua; Altland, James; Cabrera, Raul.

In: HortScience, Vol. 51, No. 2, 01.02.2016, p. 197-201.

Research output: Contribution to journalArticle

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Wu S, Sun Y, Niu G, Altland J, Cabrera R. Response of 10 aster species to saline water irrigation. HortScience. 2016 Feb 1;51(2):197-201.