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Morphological variability in some synthetic hexaploid wheats derived from Triticum turgidum x T. tauschii

By: Contributor(s): Material type: ArticleArticleLanguage: En Publication details: Rome (Italy) : Istituto Sperimentale per la Cerealicoltura, 1994.ISSN:
  • 0394-9257
Subject(s): Online resources: In: Journal of Genetics and Breeding v. 48, no. 1, p. 7-16999555Summary: A morphological study of 50 synthetic hexaploid (SH) wheats (2n = 6x = 42) derived from Triticum turgidum (2n = 4x = 28) x T. tauschii [Aegilops squarrosa] (2n = 2x = 14) crosses was undertaken to establish descriptors for subsequent use in wheat breeding. Thirty-five qualitative traits of seedlings, leaves, culms, glumes, inflorescences, spikes and grains were recorded and compared for each entry. Data on 11 quantitative traits were subjected to complete linkage cluster analysis and the SH materials were grouped into 3 distinct phenotypic groups. Distinctive combinations of characters and parents were apparent in each of the 3 groups. Substantial variation existed within the materials tested. Our observations demonstrate that from relatively simple taxonomic descriptors, classifications can be developed for utilizing the synthetic hexaploid wheat germplasm.
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Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Article CIMMYT Knowledge Center: John Woolston Library CIMMYT Staff Publications Collection 1 Available 999555
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A morphological study of 50 synthetic hexaploid (SH) wheats (2n = 6x = 42) derived from Triticum turgidum (2n = 4x = 28) x T. tauschii [Aegilops squarrosa] (2n = 2x = 14) crosses was undertaken to establish descriptors for subsequent use in wheat breeding. Thirty-five qualitative traits of seedlings, leaves, culms, glumes, inflorescences, spikes and grains were recorded and compared for each entry. Data on 11 quantitative traits were subjected to complete linkage cluster analysis and the SH materials were grouped into 3 distinct phenotypic groups. Distinctive combinations of characters and parents were apparent in each of the 3 groups. Substantial variation existed within the materials tested. Our observations demonstrate that from relatively simple taxonomic descriptors, classifications can be developed for utilizing the synthetic hexaploid wheat germplasm.

Text in English

WP|R94ANALY|1

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