Differential Zinc Efficiency of Barley Genotypes Grown in Soil and Chelator-Buffered Nutrient Solution

B. Sadeghzadeh, Zed Rengel, Chengdao Li

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    Genotypic variation to zinc (Zn) deficiency in barley indicates that selection for Znefficiency is possible. Sahara (Zn-efficient) and Clipper (Zn-inefficient) were evaluatedat different Zn nutrition in soil and chelator-buffered nutrient. Zinc deficiency symptomsappeared first in Clipper and later in Sahara. At 0.8 mg Zn/kg soil, shoot and root Znconcentration and content were higher in Sahara than Clipper. The root:shoot dry matterratio of genotypes increased as Zn application decreased. The 4th and 5th leaf elongationwere depressed greater in Clipper than Sahara by Zn deficiency. The genotypes responsesto Zn in solution and soil were consistent in all parameters except root growth. In contrastto soil, root drymatterwas greater in Clipper than Sahara in solution under Zn deficiency.Shoot Zn concentration and content can be used in assessment of barley genotypes, andmay be useful criteria in screening large genotypes aimed at developing molecularmarkers for Zn efficiency.
    Original languageEnglish
    Pages (from-to)1744-1767
    JournalJournal of Plant Nutrition
    Volume32
    Issue number10
    DOIs
    Publication statusPublished - 2009

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