Evaluating Ethylene Sensitivity and Exogenous Ethylene Impact on Early Growth of Grafted and Nongrafted Tomato Seedlings

Tricia Jenkins, Chieri Kubota, Cary L. Rivard, Eleni D. Pliakoni

Research output: Contribution to journalArticlepeer-review

Abstract

Ethylene sensitivity of grafted and nongrafted tomato (Solanum lycopersicum) seedlings with three to four true leaves was examined. The concentration of exogenous ethylene that produced symptoms was between 1 and 10 μL⸳L–1 regardless of grafting. Symptoms of ethylene exposure included leaf epinasty, decreased maximal photochemical quantum yield of photosystem II (Fv/Fm), and increased plant height (nongrafted only). Grafted plants maintained higher Fv/Fm than nongrafted plants in response to higher ethylene concentrations. Ethylene-damaged plants showed comparable growth to the control plants 3 weeks after transplanting, but transplant quality was diminished as a result of ethylene exposure at high concentrations.

Original languageEnglish (US)
Pages (from-to)129-133
Number of pages5
JournalHortTechnology
Volume32
Issue number2
DOIs
StatePublished - Apr 2022
Externally publishedYes

Keywords

  • Epinasty
  • Propagation
  • Solanum lycopersicum
  • Transportation

ASJC Scopus subject areas

  • Horticulture

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