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  • 1
    Electronic Resource
    Electronic Resource
    Pollen storage of Fragaria and Potentilla (1989)
    Springer
    Euphytica 41 (1989), S. 65-69 
    Details
    ISSN: 1573-5060
    Keywords: Fragaria ; Potentilla ; intergeneric hybrids ; pollen storage ; temperature ; relative humidity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Low temperature and humidity were used for the storage of pollen of four species of Fragaria (2n=14, 42 and 56) and two species of Potentilla (2n=14). The stainability of Fragaria pollen was assessed over a number of years by use of aceto-carmine stain and its viability by cross-pollinations; stainability of Potentilla pollen was assessed by acetocarmine. Fragaria pollen so stored remained stainable for seven years and showed the ability to set seed for three years. over the latter period, aceto-carmine staining gave a reasonable prediction of seed set produced by the stored pollen of Fragaria and so is of value in estimating pollen viability in that genus. Potentilla pollen remained stainable for three years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00022412
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Intergeneric crosses with Fragaria and Potentilla. I. Crosses between Fragaria moschata and Potentilla fruticosa (1985)
    Springer
    Euphytica 34 (1985), S. 725-735 
    Details
    ISSN: 1573-5060
    Keywords: Fragaria moschata ; Potentilla fruticosa ; intergeneric hybrids ; embryo culture ; parthenogenesis ; aneuploidy ; polyploidy ; chromosome elimination ; genetic variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Crosses between Fragaria moschata (2n=42) and Potentilla fruticosa (2n=14) produced many seeds; about half of these germinated, but only nine plants were obtained from 554 seedlings. Five plants died without flowering, and four were vigorous but sterile. Four plants had the expected chromosome number (2n=28), one plant had 21 chromosomes, and four were aneuploid with 23, 24, 25 and 27 chromosomes respectively. Response to growth substances giving elongated stem internodes and swollen but not succulent receptacles provided evidence that two of the plant were hybrids. It is suggested that all nine plants originated from a normal fertilisation which was followed in some cases by chromosome elimination at an early stage of embryo development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00035410
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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