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  • 1
    ISSN: 1573-5060
    Keywords: inheritance ; amphiploid ; preharvest sprouting ; Aegilops tauschii
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract An artificial amphiploid ‘RSP’ (2n = 42, AABBDD) between tetraploid landrace Ailanmai (Triticum turgidum L., 2 = 28, AABB) and Aegilops tauschii (DD, 2n = 14) expressed high tolerance to preharvest sprouting which derived from Aegilops tauschii. To determine the inheritance of sprouting tolerance in ‘RSP’, it was crossed with six cultivars which vary in susceptibility to preharvest sprouting. Preharvest sprouting tolerance was assessed on F2 plants using germination towels. Preharvest sprouting tolerance was inherited as a recessive trait which was controlled by one gene.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-5060
    Keywords: aneuploid analysis ; crossability ; Chineseindigenous wheat ; rye ; Triticum turgidum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Chromosomal locations of crossability genes in tetraploid wheat Ailanmai with high crossability native to Jianyang of Sichuan province, China, was determined by aneuploid analysis employing the D-genome chromosome substitution lines of Langdon durum wheat and monosomic lines of common wheat, Abbondanza. High crossability of Ailanmai was attributed to recessive crossability alleles on chromosomes 1A, 6A and 7A. The effects of chromosomes 7A and 1A were stronger than chromosome 6A. These results indicated that high crossability in Chinese tetraploid wheat cv. Ailanmai and Chinese hexaploid wheat is controlled by different genetic systems.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-5109
    Keywords: Aegilops tauschii ; (syn: Triticum tauschii) ; preharvest sprouting ; tolerance wheat improvement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract On day 21, total germination percentages of threshed seeds of Ae. tauschii ranged from 0.0 to 92.6, indicating a large variation in preharvest sprouting tolerance. Out of 46 Ae. tauschii accessions, seven had a germination index lower than ten, which indicates good tolerance to preharvest sprouting and usefulness for common wheat (Triticum aestivum L.) improvement. The variety tauschii showed a germination percentage and a germination index much higher than that of var. strangulata. Furthermore, the tough and tenacious glumes of Ae. tauschii also had an effect on tolerance to preharvest sprouting.
    Type of Medium: Electronic Resource
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