NDLI: The potential of synthetic hexaploid wheats to improve zinc efficiency in modern bread wheat

Content Provider	Springer Nature Link
Author	Genc, Y. McDonald, G.K.
Copyright Year	2004
Abstract	Synthetic hexaploid wheats (Triticum aestivum L) derived from crosses between durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] and diploid wheat (Aegilops tauschii Coss.) have been developed as a means of transferring desirable characteristics of Aegilops tauschii Coss. such as disease resistance and abiotic stress tolerance into modern bread wheat genotypes. In a growth room experiment using soil culture, we studied a group of 30 synthetic hexaploid wheat accessions together with modern wheat genotypes in order to identify new sources of zinc efficiency for further improvement of zinc efficiency in modern wheat genotypes. There was considerable genetic variation in expression of zinc deficiency symptoms (slight to severe), zinc efficiency (70–100%), shoot Zn concentration (5.8–10.5 and 33–53 mg/kg DW under deficient and sufficient Zn, respectively), shoot Zn content (3.8–10.6 and 34.0–64.6 μg/plant, under deficient and sufficient Zn, respectively) and Zn utilization (0.096–0.172 and 0.019-0.033 g DW/μg Zn under deficient and sufficient Zn, respectively) within synthetic accessions. The presence of synthetic accessions with greater zinc efficiency (100%) than zinc efficient modern wheat genotypes (85%) indicates that the synthetic hexaploids can be used to improve current levels of zinc efficiency in modern wheat genotypes. Synthetic hexaploids may also be a good source of high grain Zn concentration (28–66 mg Zn/kg seed DW).
Starting Page	23
Ending Page	32
Page Count	10
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	262
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ecology Plant Sciences Plant Physiology Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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Expression of high zinc efficiency of Aegilops tauschii and Triticum monococcum in synthetic hexaploid wheats

Contribution of Different Mechanisms to Zinc Efficiency in Bread Wheat During Early Vegetative Stage

Uptake of zinc by rye, bread wheat and durum wheat cultivars differing in zinc efficiency

Differential response of rye, triticale, bread and durum wheats to zinc deficiency in calcareous soils

Uptake and transport of foliar applied zinc ($^{65}$Zn) in bread and durum wheat cultivars differing in zinc efficiency

QTL mapping for grain zinc and iron concentrations and zinc efficiency in a tetraploid and hexaploid wheat mapping populations

Resistance categories of synthetic hexaploid wheats resistant to the Russian wheat aphid (Diuraphis noxia)

Domesticated emmer wheat [T. turgidum L. subsp. dicoccon (Schrank) Thell.] as a source for improvement of zinc efficiency in durum wheat

Role of rye chromosomes in improvement of zinc efficiency in wheat and triticale

The potential of synthetic hexaploid wheats to improve zinc efficiency in modern bread wheat

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Expression of high zinc efficiency of Aegilops tauschii and Triticum monococcum in synthetic hexaploid wheats

Contribution of Different Mechanisms to Zinc Efficiency in Bread Wheat During Early Vegetative Stage

Uptake of zinc by rye, bread wheat and durum wheat cultivars differing in zinc efficiency

Differential response of rye, triticale, bread and durum wheats to zinc deficiency in calcareous soils

Uptake and transport of foliar applied zinc ($^{65}$Zn) in bread and durum wheat cultivars differing in zinc efficiency

QTL mapping for grain zinc and iron concentrations and zinc efficiency in a tetraploid and hexaploid wheat mapping populations

Resistance categories of synthetic hexaploid wheats resistant to the Russian wheat aphid (Diuraphis noxia)

Domesticated emmer wheat [T. turgidum L. subsp. dicoccon (Schrank) Thell.] as a source for improvement of zinc efficiency in durum wheat

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