Gas Exchange and Water Relations in Water and Salinity Stressed Wheat Lines

Autor:	G. Zerbi, D. R. Lecain, J. A. Morgan
Rok vydání:	1991
Předmět:	Moisture Chemistry Carbon exchange medicine.medical_treatment Environment controlled Plant Science Salinity Agronomy Co2 concentration medicine Agronomy and Crop Science Saline Water vapor Transpiration
Zdroj:	Journal of Agronomy and Crop Science. 166:1-7
ISSN:	1439-037X 0931-2250
DOI:	10.1111/j.1439-037x.1991.tb00877.x
Popis:	Differences in gas exchange parameters i.e. carbon exchange rate (CER), transpiration (Tr), water vapor conductance (g) were investigated, under a controlled environment, in a semi-dwarf (SD) Triticum aestivum line, its tall (TL) near isoline and the Payne (PA) variety characterized by small leaves. The plants were maintained in: (a) optimal substrate moisture condition (CTR); (b) salinized by watering with a 0.12 m NaCl solution (SLT); (c) water stressed by withholding waterings during a period of six days (STR); (d) stressed and salinized during the same period and with the same saline solution (S + S). CER and Tr were negatively affected by the stresses; SLT and S + S treatments had a higher WUE compared to their respective controls CTR and STR. SD line had a better performance in terms of CER and WUE, particularly when water and salt stresses interacted. Leaf anatomy and assimilation/internal CO2 concentration curves contributed to explaining the SD performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d81d0c62dcd6adedb494922101c521f1 https://doi.org/10.1111/j.1439-037x.1991.tb00877.x Zobrazit plný text záznamu Plný text ve formátu PDF