Association analysis of some morphological traits of wheat (Triticum aestivum L.) under field stress conditions

W.M. Bhutta, M. Ibrahim and Tahira
Additional contact information
W.M. Bhutta: Centre of Advanced Study in Applied Genetics and Saline Agriculture, University of Agriculture, Faisalabad, Pakistan
M. Ibrahim: Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
Tahira: Pakistan Agriculture Research Council, Islamabad, Pakistan

Plant, Soil and Environment, 2006, vol. 52, issue 4, 171-177

Abstract: An association between yield components and their direct and indirect influence on the grain yield of wheat were investigated. 24 breeding lines were tested in a randomized complete block experiment design with three replications. According to the results the phenotypic correlation among the traits and their path coefficient were estimated. Positive significant correlation coefficients were obtained for association between survival rate treatment I (0.35*) and III (0.34*), leaf venation (0.51*), stomatal frequency (0.39*), osmotic pressure (0.30*), flag leaf area (0.85*), number of tillers per plant (0.70*) with grain yield per plant at both phenotypic and genotypic levels. A negatively significant correlation between hygrophilic colloids (-0.15*) and epidermal cell size (-0.22*) with grain yield per plant was obtained at phenotypic and genotypic levels. Path coefficients were also computed to estimate the contribution of character to the yield. Path coefficient analysis revealed that flag leaf area (1.34), root/shoot ratio (0.51) and survival rate II (0.56) had the highest positive direct effects on grain yield, while hygrophilic colloids (-0.24) and osmotic pressure (-0.07) had a negative direct effect on grain yield. The results thus obtained suggested that flag leaf area is an important component of yield and hence needs a special attention in selection strategies.

Keywords: wheat; drought resistance; yield; Pakistan (search for similar items in EconPapers)
Date: 2006
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/3362-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/3362-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:52:y:2006:i:4:id:3362-pse

DOI: 10.17221/3362-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().