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

Autor: Tricia Jenkins, Chieri Kubota, Cary L. Rivard, Eleni D. Pliakoni
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: HortTechnology, Vol 32, Iss 2, Pp 129-133 (2022)
Druh dokumentu: article
ISSN: 1943-7714
DOI: 10.21273/HORTTECH04947-21
Popis: 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.
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