Assessing the correlations and selection criteria between different traits in wheat salt-tolerant genotypes
Joint Authors
al-Dusari, Munirah A.
Qutub, Atiyyah
Ghazi, Abd al-Halim Ibrahim Abd al-Halim
al-Ashqar, Ibrahim
al-Ghamidi, Abd Allah Ahmad
Ibrahim, Abd Allah
Source
Saudi Journal of Biological Sciences
Issue
Vol. 28, Issue 9 (30 Sep. 2021), pp.5414-5427, 14 p.
Publisher
Publication Date
2021-09-30
Country of Publication
Saudi Arabia
No. of Pages
14
Main Subjects
Abstract EN
Salinity is one of the largest stresses blocking horizontal and vertical expansion in agricultural lands.
Establishing salt-tolerant genotypes is a promising method to benefit from poor water quality and salinized lands.
An integrated method was developed for accomplishing reliable and effective evaluation of traits stability of salt-tolerant wheat.
The study aims were to estimate the genetic relationships between explanatory traits and shoot dry matter (SDM), and determine the traits stability under three salinity levels.
Morphophysiological and biochemical traits were evaluated as selection criteria for SDM improvement in wheat for salinity tolerance.
Three cultivars and three high-yielding doubled haploid lines (DHLs) were used.
Three salt (NaCl) levels (control (washed sand), 7 and 14 dS m-1) were applied for 45 days (at the first signs of death in the sensitive genotypes).
All morphophysiological traits gradually decreased as salinity levels increased, excluding the number of roots.
Decreases were more visible in sensitive genotypes than in tolerant genotypes.
All biochemical traits increased as salinity levels increased.
Variance inflation factors (VIFs) and condition number exhibited multicollinearity for membrane stability index and polyphenol oxidase activity.
After their removal, all VIFs were <10, thereby increasing path coefficient accuracy.
Total chlorophyll content (CHL) and catalase (CAT) provided significant direct effects regarding genetic and phenotypic correlations for the three salinity levels and their interactions in path analysis on SDM, indicating their stability.
CHL and CAT had high heritability (>0.60%) and genetic gain (>20%) and highly significant genetic correlation, co-heritability, and selection efficiencies for SDM.
CHL and CAT could be used as selection criteria for salinity tolerance in wheat-breeding programs.
The tolerated line (DHL21) with the check cultivar (Sakha 93) can be also recommended as novel genetic resource for improving salinity tolerance of wheat.
American Psychological Association (APA)
al-Ashqar, Ibrahim& Ibrahim, Abd Allah& Ghazi, Abd al-Halim Ibrahim Abd al-Halim& Qutub, Atiyyah& al-Ghamidi, Abd Allah Ahmad& al-Dusari, Munirah A.. 2021. Assessing the correlations and selection criteria between different traits in wheat salt-tolerant genotypes. Saudi Journal of Biological Sciences،Vol. 28, no. 9, pp.5414-5427.
https://search.emarefa.net/detail/BIM-1411496
Modern Language Association (MLA)
al-Ashqar, Ibrahim…[et al.]. Assessing the correlations and selection criteria between different traits in wheat salt-tolerant genotypes. Saudi Journal of Biological Sciences Vol. 28, no. 9 (2021), pp.5414-5427.
https://search.emarefa.net/detail/BIM-1411496
American Medical Association (AMA)
al-Ashqar, Ibrahim& Ibrahim, Abd Allah& Ghazi, Abd al-Halim Ibrahim Abd al-Halim& Qutub, Atiyyah& al-Ghamidi, Abd Allah Ahmad& al-Dusari, Munirah A.. Assessing the correlations and selection criteria between different traits in wheat salt-tolerant genotypes. Saudi Journal of Biological Sciences. 2021. Vol. 28, no. 9, pp.5414-5427.
https://search.emarefa.net/detail/BIM-1411496
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 5426-5427
Record ID
BIM-1411496