Abscisic acid drenches can reduce water use and extend shelf life of Salvia splendens

Jongyun Kim, Marc W. van Iersel

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Inadequate watering of potted ornamental plants during retail can cause a decline in quality as well as plant death. Abscisic acid (ABA) is the main phytohormone controlling plant responses to drought stress, including regulation of stomatal opening and closure. ABA may become available for the greenhouse industry in 2010. The objective of this study was to determine whether exogenous ABA applications can be used to induce stomatal closure and reduce water loss from the substrate. We drenched salvia (Salvia splendens F. Sellow. ex Roem & Shult.) 'Bonfire Red' with 50mL of ABA solutions at concentrations of 0, 250, 500, 1000, and 2000mgL-1, after which plants were no longer irrigated. ABA drenches slowed down substrate water loss by reducing transpiration in a dose-dependent manner. Stomata closed within 3h after ABA treatment, decreasing transpirational water loss. However, ABA drenches also caused abscission of lower leaves, resulting in approximately 60% leaf loss with 2000mgL-1 ABA. ABA drenches with 250mgL-1 and 500mgL-1 increased the shelf life of salvia 'Bonfire Red' by 3 days, without excessive leaf abscission. ABA can be used to increase the shelf life of salvia, but the lowest effective concentration should be used to minimize leaf abscission.

Original languageEnglish
Pages (from-to)420-423
Number of pages4
JournalScientia Horticulturae
Volume127
Issue number3
DOIs
Publication statusPublished - 2011 Jan 10
Externally publishedYes

Fingerprint

Salvia splendens
abscisic acid
shelf life
water
Salvia
leaf abscission
container-grown plants
abscission
acid treatment
ornamental plants
stomata
plant hormones
plant response
leaves
transpiration
water stress

Keywords

  • ABA
  • Growth regulators
  • Leaf abscission
  • Stomatal conductance
  • Substrate water content

ASJC Scopus subject areas

  • Horticulture

Cite this

Abscisic acid drenches can reduce water use and extend shelf life of Salvia splendens. / Kim, Jongyun; van Iersel, Marc W.

In: Scientia Horticulturae, Vol. 127, No. 3, 10.01.2011, p. 420-423.

Research output: Contribution to journalArticle

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