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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 29 (1980), S. 369-377 
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; Hordeum bulbosum ; bulbous barley grass ; interspecific cross ; incompatibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Partial incompatibility has already been reported between Hordeum vulgare and H. bulbosum during the course of doubled haploid production, and in this paper attempts to overcome the breeding barrier are described. The methods which seem to offer most success are those of environmental adjustments and the adoption of new genotypes of H. bulbosum. Further cultivars of H. vulgare exhibiting this phenomenon are also noted.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; Hordeum bulbosum ; bulbous barley grass ; embryo culture ; haploids ; hybrids ; plant regeneration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Plant regeneration rates from embryos derived from Hordeum vulgare x H. bulbosum were recorded over a 3 1/2 year period. % total plant regeneration (haploids + VB hybrids) varied to some extent but did not seem to be influenced by season or male parent. % VB production (and thus chromosome elimination) was however markedly affected by season and the genotype of the pollinator.
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  • 3
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; Hordeum bulbosum ; bulbous barley grass ; haploid embryos ; variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Improvements in the success of doubled haploid production have been achieved partly by screening new accessions of Hordeum bulbosum. In order to assess levels of variation within stocks of this species, rates of embryo differentiation from the cross between H. vulgare × H. bulbosum were recorded for selections derived from two different stocks of H. bulbosum. There was little difference within stocks for this character despite variation in the morphology and banding patterns of two enzyme systems of one of the stocks. It is proposed that to obtain further increases in success rates a few selections from many accessions of H. bulbosum should be screened rather than many selections from a few stocks.
    Type of Medium: Electronic Resource
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