Physiological responses of two Turkish rice (Oryza sativa L.) varieties to salinity

Authors

ÖZGÜR TATAR
HOLGER BRUECK
MİTHAT NURİ GEVREK
FOLKARD ASCH

DOI

10.3906/tar-0908-311

Abstract

Effects of salinity (60 mM NaCl) on 2 Turkish rice varieties (Kıral and Yavuz) were studied in comparison to 2 international check varieties (IR4630-22-2 tolerant and IR31785-58-1-2-3-3 susceptible) in 2 hydroponic and 1 outdoor soil-based pot experiments. Partitioning of dry matter, leaf chlorophyll concentration, K^+ and Na^+ uptake, and proline accumulation in the leaves were investigated under both control and salt stress conditions. Dry matter accumulation decreased with salt stress in all varieties, with the decreases being more pronounced in IR31785 and Kıral. The results showed that the varieties tested expressed different adaptation mechanisms under salt stress; however, the increase of leaf proline accumulation was a general indicator for responses to salt stress in all cultivars.

Keywords

Chlorophyll, K/Na ratio, proline, rice, salinity

First Page

451

Last Page

459

Recommended Citation

TATAR, ÖZGÜR; BRUECK, HOLGER; GEVREK, MİTHAT NURİ; and ASCH, FOLKARD (2010) "Physiological responses of two Turkish rice (Oryza sativa L.) varieties to salinity," Turkish Journal of Agriculture and Forestry: Vol. 34: No. 6, Article 1. https://doi.org/10.3906/tar-0908-311
Available at: https://journals.tubitak.gov.tr/agriculture/vol34/iss6/1