Submitted to: Agronomy Abstracts
Publication Type: Abstract only
Publication Acceptance Date: 11/14/2002
Publication Date: 11/14/2002
Citation: JARADAT, A.A. THE OMANI BARLEY LANDRAC BAHTINI. I. VARIABILITY FOR SALT TOLERANCE. CD-ROM. MADISON, WI: AGRONOMY ABSTRACTS. 2002. Interpretive Summary:
Technical Abstract: One-hundred-twenty-five accessions representing seven ecotypes of the Omani barley landrace "Batini" were selected from a collection of 3,000 accessions based on their agronomic performance under optimum growing conditions. The 125 accessions were evaluated for biomass production, in a hydroponics system for eight weeks, under increasing (0.5, 10.0 and 20.0 dS/m) salinity levels. A salinity susceptibility index (SSI), based on standardized maximum yield (Ymax), yield under 10 (Y10) and 20 (Y20) dS/m, was calculated for each accession. SSI ranged from 0.84 (least susceptible) to a high of 1.68. Ymax was positively and significantly correlated with Y10 for all ecotypes; however, for four of the seven ecotypes, correlation coefficients between Ymax and Y20, and between Y10 and Y20 were not significant. SSI was best predicted by Ymax (R**2=0.95) and resulted in selecting 10 high-yielding accessions under medium (10 dS/m) and high (20 dS/m) salinity levels.