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  • 1
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    Sources of resistance to bacterial blight of stock (Matthiola incana R. Br.) (1995)
    Springer
    Details
    Publication Date: 1995-12-01
    Print ISSN: 0925-9864
    Electronic ISSN: 1573-5109
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
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  • 2
    Electronic Resource
    Electronic Resource
    Inheritance of Seed Dormancy in Lisianthus (Eustoma grandiflorum) (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 113 (1994), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The genetics of chill-related seed dormancy, exhibited by a lisianthus (Eustoma grandiflorum) genotype native to North America, was investigated. Less than 1 % of the seeds germinated by direct hydration at 20°C, while full germination (98%) was attained by chilling imbibed seeds, for at least 11 days, at 3°C, before transferring them to 20°C. The inheritance of seed dormancy was analyzed in F1, BC1, and F2, populations, derived from mating between a normal non-chill-requiring genotype (P1) and the above chill-requiring genotype (P2). F1 seeds, of both reciprocals, and BC1 (P1) seeds were all non-dormant. The proportion of seed dormancy in F2 and BC, (P2) was 0.06 and 0.68, respectively. The inheritance model proposed includes six diallelic loci with cumulative effects, in which the presence of at least nine ‘dormancy-conferring’ alleles is necessary for inducing phenotypic seed dormancy. Possible implications of inherent seed dormancy on the utilization of native lisianthus germplasm for breeding are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1994.tb00746.x
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  • 3
    Electronic Resource
    Electronic Resource
    Population means and correlation analyses of growth parameters in lisianthus (Eustoma grandiflorum Shinn.) (1994)
    Springer
    Euphytica 78 (1994), S. 193-197 
    Details
    ISSN: 1573-5060
    Keywords: Eustoma grandiflorum ; flowering date ; genetics ; heterosis ; lisianthus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The variation in growth characteristics among lisianthus (Eustoma grandiflorum Shinn.) genotypes was investigated. The genetic control of several growth parameters was studied by analysing parental, F1, BC1 and F2 populations. The parameters analysed were stem elongation rate (SE), stem diameter (SD), leaf width (LW), number of nodes (NN), node length (NL) and days to flowering (DF). The genotypes tested exhibited great variation for all parameters. A particularly wide variation was noted for SE, ranging from 3 to 56 mm/week. This variation was partially attributed to a differential sensitivity to rosette formation. There was a marked positive heterosis for SE, SD, LW and NN; these parameters proved to be genetically correlated within segregating populations. DF was slightly negatively correlated with SE, NN and NL. It was concluded that SE and DF were independently controlled.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00027517
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  • 4
    Electronic Resource
    Electronic Resource
    The inheritance of flowering time in garden stock (Matthiola incana R.Br.) (1993)
    Springer
    Euphytica 72 (1993), S. 153-156 
    Details
    ISSN: 1573-5060
    Keywords: double-flower ; flower initiation ; genetics ; Matthiola incana ; stock
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The inheritance of flowering time (FT) in a cross between early-flowering (P1) and late-flowering (P2) Matthiola incana genotypes, was investigated. The distribution of FT in F1, F2 and BC1 generations indicated an additive genetic control with partial dominance of earlines alleles, particularly with regard to double-flowered plants. Single-flowered plants flowered earlier than double-flowered plants, averaged within both parental lines; however, the mean difference between singles and doubles was 16 days for P1 as compared with 6 days for P2. This flower-doubleness related delay in FT was found to be heritable, by analysis of F3 family means. The implications of these results on the breeding of stock cultivars is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023785
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  • 5
    Electronic Resource
    Electronic Resource
    The genetic relations between length of time to germination and seed dormancy in lisianthus (Eustoma grandiflorum) (1994)
    Springer
    Euphytica 80 (1994), S. 125-128 
    Details
    ISSN: 1573-5060
    Keywords: chill ; Eustoma grandiflorum ; genetics ; germination speed ; seed dormancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The inheritance of speed of germination and its genetic relations with seed dormancy was investigated in lisianthus (Eustoma grandiflorum). The study was based on data from parental, F1, BC1F1 and F2 generations of a cross between a normally germinating genotype (P1) and a chill-requiring genotype (P2). The mean post-chilling germination speed of P2 was considerably lower than that of P1. Germination speed was found to be under nuclear embryonic control. Analysis of generation means for prechilled seeds revealed an additive gene action with complete dominance of the alleles conferring higher germination speed, since the means of the F1 and the BC1 (P1) were indentical to that of P1. Such dominance was not found for unchilled seeds, in which the mean germination speed of the F1 and the BC1 (P1) was lower than that of P1. It was hypothesized that slow germination speed was induced by pleiotropic effects of seed dormancy alleles. Seed prechilling seemed to eliminate these effects in progeny heterozygous for dormancy alleles, but not in progeny homozygous for dormancy alleles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039307
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  • 6
    Electronic Resource
    Electronic Resource
    Linkage relationships of genes for leaf morphology and double flowering in Matthiola incana (1993)
    Springer
    Euphytica 74 (1993), S. 133-136 
    Details
    ISSN: 1573-5060
    Keywords: double flowering ; gametic lethal ; leaf morphology marker ; Matthiola incana
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The inheritance and linkage relationships of a leaf morphology gene of Matthiola incana were investigated. The allele for sinuate leaf shape, c, was found to be recessive to the allele for normal entire leaf, C. The c allele was tightly linked to the recessive allele for double flowering, s. The recombination frequency between the two loci was close to zero. The mode of inheritance of the C gene was in accordance with the hypothesis that a pollen lethal gene is responsible for the constant 1:1 segregation ratio of double-flowered (= male sterile) to single-flowered (= fertile) plants in most M. incana breeding lines. The sinuate leaf allele seemed to reduce the frequency and delay the flowering of double-flowered plants. The importance of the C gene as a double flowering marker in the cultivation and the breeding of M. incana is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00033778
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  • 7
    Electronic Resource
    Electronic Resource
    Sources of resistance to bacterial blight of stock (Matthiola incana R. Br.) (1995)
    Springer
    Genetic resources and crop evolution 42 (1995), S. 371-372 
    Details
    ISSN: 1573-5109
    Keywords: bacterial blight ; interspecific hybridisation ; Matthiola ; resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Accessions ofM. tricuspidata (L.) R. Br.,M. aspera Boiss. andMatthiola longipetala (Vent.) DC. were tested for their reaction to bacterial blight of stock (M. incana R. Br.), caused byXanthomonas campestris pv.incanae. Potted plants were sprayed with bacterial cell suspension, adjusted to 108 cells/ml. The tested accessions of the three species were found highly resistant, while control plants ofM. incana were severely infected. InterspecificF 1 hybrid plants betweenM. incana andM. tricuspidata also exhibited high resistance to the disease. The implications and the expected difficulties in breeding stock for bacterial blight resistance are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02432141
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