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GrainGenes Reference Report: BIU-230-95

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Reference	BIU-230-95
Title	Evaluation of salt stress tolerance in some interspecific hybrids of wheat (Triticum sp.)
Journal	Biuletyn Instytutu Hodowli i Aklimatyzacji Roslin
Year	2003
Volume	230
Pages	95-102
Author	Prazak R
Language	Polish
Abstract	The influence of NaCl salt at concentrations of 0 (control), 10, 20, 50, 100 and 200 mM on the seed germination and seedling growth of 9 hybrid strains obtained by crossing Aegilops juvenalis and A. ventricosa with Triticum durum cv. Grandur and T. aestivum cultivars Arda, Begra, Panda, CZR 1406 line (1BL/1RS) was investigated. The responses of the selected hybrid strains to NaCl were compared with reactions of their parental forms. Seeds were germinated on filter paper in Petri dishes, and moistened in Hoagland medium containing different concentrations of NaCl. Percentage of germinated seeds and maximum root and coleoptile length were assessed after 5 days of growth. Index of tolerance of salt treatments was calculated on the basis of coleoptile length. High salt concentration did not have negative influence on the seed germination but inhibited root and coleoptile elongation. Among 9 hybrids, 2 were characterized with higher tolerance index of NaCl salt than their wheat parental cultivars, and 6 had lower tolerance index only in relation to the CZR 1406 line. The seedlings of (A. juvenalis x CZR 1406) x Begra and {((A. juvenalis x CZR 1406) x CZR 1406) x Panda} x CZR 1406 hybrids and the CZR 1406 line showed the highest tolerance of the salt stress. Most strongly NaCl inhibited coleoptile elongation in the ((A. ventricosa x Grandur) x Panda) x Panda hybrids and the Grandur and Panda cultivars' seedlings. Probably, high tolerance of hybrid forms with A. juvenalis germplasm was caused by the rye genes of parental form CZR 1406. Lower tolerance of the A. ventricosa hybrids was conditioned by the Grandur and Panda genes
Keyword	coleoptile [ Show all 20 ]

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