Abscisic Acid Effects on Photosynthesis and Transpiration in Geranium Cuttings

Autor:	Richard N. Arteca, De-Sheng Tsai, Carl Schlagnhaufer
Rok vydání:	1985
Předmět:	Horticulture
Zdroj:	HortScience. 20:370-372
ISSN:	2327-9834 0018-5345
DOI:	10.21273/hortsci.20.3.370
Popis:	The effect of root applications of abscisic acid (ABA) on photosynthesis and transpiration in geranium (Pelargonium ×hortorum ‘Glacier Crimson’ Syn. Bruni) cuttings was evaluated using an open infrared CO2 gas exchange system. At concentrations above 3.8 μM ABA there was a reduction in relative growth rate (RGR), transpiration, and photosynthesis 2 days following treatment. Three hours following treatment with 76 μM ABA there was a maximum decrease in both photosynthetic and transpiration rates. Plants which were treated with 76 μM ABA for 6 or 9 hr showed an inhibition in photosynthesis and transpiration 4 days followiing treatment; however, after 6 days there was no difference between treated and control plants. The reduction in transpiration and photosynthesis reported in this paper may have practical value in the shipment and storage of geranium cuttings.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b3e003a542eabbfd1b9a8327951a7580 https://doi.org/10.21273/hortsci.20.3.370 Zobrazit plný text záznamu