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  • Articles  (20)
  • genetics  (20)
  • 1975-1979  (20)
  • 1950-1954
  • 1945-1949
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (20)
  • Education
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  • Articles  (20)
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  • 1
    Electronic Resource
    Electronic Resource
    Anthocyanin pigmentation in a potato dihaploid and its chromosome-doubled derivatives (1979)
    Springer
    Potato research 22 (1979), S. 59-61 
    Details
    ISSN: 1871-4528
    Keywords: Group Tuberosum ; tuber eye pigmentation ; genetics ; additivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Tubers with lilac pigmented eyes were produced by tetraploids derived from vegetative chromosome doubling of a Pentland Crown dihaploid. Close examination of tubers of the original dihaploid revealed very faint pigmentation in one eye on each of two tubers. Although there is some capacity of the dihaploid to produce tuber eye anthocyanin pigment therefore, doubling the chromosome number had apparently resulted in increased anthocyanin production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02356733
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  • 2
    Electronic Resource
    Electronic Resource
    Hybrid grass-clump dwarfness in wheat: Physiology and genetics (1976)
    Springer
    Euphytica 25 (1976), S. 471-483 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat hybrid weekness ; hybrid grass-clump dwarfness ; hybrid dwarfness ; physiology ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The growth of all grass-clump dwarfs is sensitive to temperature with low temperature giving rise to the grass-clump phenotype and high temperature producing normal phenotype. A continuous temperature of 26°C is required for normal growth of Type 1 dwarfs, a continuous temperature of 21°C is required for normal growth of Ty[e 2 dwarfs and a continuous temperature of 16°C is required for normal growth of Type 3 dwarfs. Genetic studies show that the inheritance of the grass-clump characteristic is due to three complementary dominant genes. The grass-clump growth habit is produced as a result of the temperature sensitivity of the apical meristem. In grass-clump plants low temperature treatment results in the cessation of cell division, DNA synthesis and phospholipid synthesis in the apical meristem. The primary temperature lesion has not been identified. Prolonged low temperature treatment of grass-clump plants results in extensive cell necrosis in a region just below the apical meristem; this cell death results in the permanent inactivation of the apical meristem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041581
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  • 3
    Electronic Resource
    Electronic Resource
    Genetic control of photoperiodic sensivity and maturity in spring wheat within narrow limits of adaptation (1976)
    Springer
    Euphytica 25 (1976), S. 489-498 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; photoperiodic sensitivity ; maturity ; genetics ; adaptation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Photoperiodic respose, as assessed by a regression technique, exhibited complete dominance averaged over the crosses of an eight parent diallel in the vernalized condition. Photoperiodic response as final leaf number for the vernalized 8-hour photoperiod diallel was closely related to photoeriodic response of the regression method. However, the diallel analyses of both sets of data showed little agreement in terms of respectieve array positions. The inheritance of photoperiodic response in diallels using regression values showed little agreement between the vernalized and unvernalized conditions. This difference was postulated to be due to interaction of vernalization and photoperiodic response in the unvernalized situation. In the unvernalized condition photoperiodic response exhibited non-allelic interaction, attributable mainly to the cultivar Pinnacle in general behaviour in its crosses. Its removal gave a situation of high average dominance for photoperiodic response with a clear indication that high photoperiodic sensitivity was dominant to comparative insensitivity. Days to ear emergence (vernalized and 18-hour photoperiod) exhibited non-allelic interaction in its expression, due mainly to the general behaviour of the cultivar Pinnacle in its crosses. Removal of its array gave a situation of a moderately strong degree of overdominance in the expression of days to ear emergence. Maturity differences amongst parents and F1's, vernalized and under 18-hour photoperiod, are postulated to be due to a factor other than vernalization or photoperiodic response beheved to be growth temperature in differentially in fluencing growth and/or developmental rates between genotypes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041583
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  • 4
    Electronic Resource
    Electronic Resource
    The genetics of naked oats (Avena nuda L.) (1976)
    Springer
    Euphytica 25 (1976), S. 167-174 
    Details
    ISSN: 1573-5060
    Keywords: Avena nuda ; oats ; naked grain ; multiflorous spikelets ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The inheritance of the character complex of naked grain and multiflorous spikelets was studied in a diallel set of crosses comprising five varieties of naked oats (Avena nuda)-As 78, Manu, Caesar, Nuprime and AJ86/2/1-and one variety of husked oats (A. sativa), Maris Oberon. In the F1 generation the distribution of multiflorous spikelets was in all cases similar to that of the mid-parent. Crosses between the varieties of A. nuda produced only naked grain on plants in the F1 and F2 generations, indicating that ‘nakedness’ in the varieties studied was determined by the same loci. The three-gene model proposed by Moule (1972) for the determination of A. nuda characters was inadequate to account for the observed F2 segregation in naked x husked crosses. An extension of this model is proposed to include a third modifying gene, N3, which in the homozygous dominant condition produces the husked phenotype when the principal gene, N, is heterozygous. The model assumes complex epistatic relationships between the three modifying genes N1, N2 and N3. Published information and further experimental data suggest that the genotype NN--N3N3 is uncommon. The expression of the genes determining nakedness was greatly influenced by the environment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041542
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  • 5
    Electronic Resource
    Electronic Resource
    Genetic segregation of the deformed flower gene in trisomics of Solanum chacoense (1976)
    Springer
    Euphytica 25 (1976), S. 313-320 
    Details
    ISSN: 1573-5060
    Keywords: Solanum chacoense ; deformed flower ; genetics ; trisomics ; potato ; ancuploid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The gene df (deformed flower), which is expressed as short anther in sensitive cytoplasm, has been incorporated into the trisomic series of S. chacoense Bitt. The cytoplasmic sensitivity and genotypes for the gene df were tested in the original trisomics and their parents. Two diploid parents were found to be homozygous dominant for Df, while one was homozygous recessive. All the parents and trisomics tested had resistant cytoplasm. Six trisomics were heterozygous for df, segregating with a 1:1 ratio when they were crossed to the homozygous testers ([df s]dfdf). When the F1 trisomics (trisomics x [Df r]dfdf) were crossed to the homozygous testers, nine of the 13 trisomics segregated with a 1:1 ratio, three with a 0:1 ratio (all deformed) and one trisomic (V1682.3) with a 2:1 ratio. All the parents of the trisomic V1682.3 were homozygous dominant for Df. This clone is believed to be trisomic for the gene df.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041562
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  • 6
    Electronic Resource
    Electronic Resource
    Genetic analysis of hexaploid wheat, Triticum aestivum using intervarietal chromosome substitution lines—protein content and grain weight (1976)
    Springer
    Euphytica 25 (1976), S. 65-71 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; chromosome substitution ; protein content ; grain weight ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The 21 intervarietal chromosome substitution lines of the cultivar Hope in Chinese Spring were used to analyse the genetic differences between the two cultivars Hope and Chinese Spring in grain protein content and grain weight. Only one chromosome of ‘Hope, 5D’, significantly influenced grain protein content of ‘Chinese Spring’. Its influence was of only minor effect and was to decrease protein content expression of ‘Chinese Spring’. It has been postulated that the genetic control of protein content, in this instance, is most likely due to many genes each of small effect. Five chromosomes of ‘Hope’ influenced the 1000 grain weight value of normal ‘Chinese Spring’, all increasing its expression. Chromosomes 1A, 4A and 5B were of major effect and 3A and 6A of comparatively minor effect. A minimal estimate of five genes determines the difference in grain size between these cultivars. The possible evolutionary significance of the contribution of the A genome of bread wheat to grain size determination is discussed. On the basis of certain findings of this study, proposals are made for breeding for increased grain size in hexaploid wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041529
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  • 7
    Electronic Resource
    Electronic Resource
    Genetics of resistance to an isolate of Alternaria triticina causing leaf blight of wheat (1976)
    Springer
    Euphytica 25 (1976), S. 769-775 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; Alternaria triticina ; leaf blight ; resistance ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Genetics of field resistance to Alternaria triticina was studied in a diallel set of crosses using ten cultivars of wheat which included eight resistant and two susceptibles. Susceptibility if NP 830 was found to be controlled by a dominant gene and that of NP 891 by two dominant complementary genes. The resistant cultivars NP 824, NP 835, NP 852, C 281, E 5477, E 5550, E 5878 and UP 303 carry the recessive alleles of the genes present in NP 830 and NP 891. All the resistant cultivars used in the study carried identical gene(s) for resistance to A. triticina. The gene(s) responsible for resistance appear to have come from NP 4 and Turkey, both of which seem to have evolved simultaneously in nature. The gene(s) for susceptibility in NP 830 and NP 891 were found to be different. It is assumed that these genes come from either Motia (Triticum durum) or Khapli (T. dicoccum) in NP 830 and from Gaza (T. durum) in NP 891.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041617
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  • 8
    Electronic Resource
    Electronic Resource
    Inheritance of nut traits in filbert (Corylus avellana L.) (1977)
    Springer
    Euphytica 26 (1977), S. 465-474 
    Details
    ISSN: 1573-5060
    Keywords: Corylus avellana ; filbert ; hazelnut ; genetics ; breeding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A filbert breeding program was initiated at Oregon State University in 1969 to develop improved cultivars for the Pacific Northwest. Nut traits were evaluated in parents and progenies and the first published inheritance data for this crop species are presented. Correlation coefficients of progeny means and mid-parent values are 0.92 for percent kernel, 0.84 for nut weight, 0.68 for amount of fiber on pellicle, 0.89 for kernel shrinkage, 0.70 for number of nuts per cluster, and 0.34 for estimated husk length. It is concluded that all but one of the evaluated traits is highly heritable and that additive gene action is principally responsible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00027009
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  • 9
    Electronic Resource
    Electronic Resource
    Segregation for prebifurcation shooting, stem length and leaf number of main stem in two crosses of Capsicum annuum L. (1977)
    Springer
    Euphytica 26 (1977), S. 491-495 
    Details
    ISSN: 1573-5060
    Keywords: Capsicum annuum ; pepper ; genetics ; inheritance ; prebifurcation shooting ; stem length ; leaf number ; mechanical harvesting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Extensive prebifurcation shooting which terminates in fruits is present in certain cultivars (e.g. Santaka) of Capsicum annuum L. Plants with such architecture setting their fruits along the periphery may therefore be expected to be suitable for mechanical harvesting. From inheritance studies (parents. F1 's and two different F2 populations) it was found that prebifurcation shooting, though a quantitative character, is controlled by relatively few genes. Few genes control main stem length and also leaf number of main stem. Correlations between the above three traits were not significant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00027015
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  • 10
    Electronic Resource
    Electronic Resource
    North European cultivars as donors of resistance to American gooseberry mildew in black currant breeding (1977)
    Springer
    Euphytica 26 (1977), S. 817-823 
    Details
    ISSN: 1573-5060
    Keywords: Ribes nigrum ; black currant ; Sphaerotheca mors-uvae ; American gooseberry mildew ; resistance breeding ; nucleolar chromosome ; satellite size ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The Swedish black currant Öjebyn is heterozygous for a dominant gene, designated Sph2, conferring effective resistance against Sphaerotheca mors-uvae at East Malling. Resistance due to the gene M derived from the Finnish Brödtorp is now often only partial and in some progenies is associated with an undesirable spreading habit. Size differences in the satellites of the two nucleolar chromosomes of Brödtorp are not closely associted with differential mildew response in its derivatives.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021712
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  • 11
    Electronic Resource
    Electronic Resource
    A linkage group in rice (Oryza sativa L.) involving anti-inhibitory genes (1977)
    Springer
    Euphytica 26 (1977), S. 427-432 
    Details
    ISSN: 1573-5060
    Keywords: Oryza sativa ; rice ; linkage ; anti-inhibitory genes ; pigmentation ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Inheritance studies of purple pigmentation in T-160 x AC-177 revealed that purple colour in the coleoptile is based on four genes (Pc 1 , Pc2, I-Pc, Ai-Pc), in the internode on two genes (Pin a1 , Pin a2 ), in the junctura on three genes (Pja, Pjb 1 , Pjb 2 ) and in the apiculus on three genes (Pa, I-P, Ai-P). For panicle density monogenic segregation (Lx) was obtained. Linkage was established between the genes for the apiculus (Pa and Ai-P), panicle density (Lx), the internode (Pin a ), the coleoptile (Ai-Pc) and the junctura (Pja), in that sequence. This linkage group forms part of the IV ‘mp’ group of Misro et al. (1966) which corresponds to the ‘g’ group of japonica. The two anti-inhibitory genes Ai-Pg and Ai-Pau of the linkage group Ai-Pg=Ai-Pc=Ai-Pau reported earlier (Dhullappanavar et al., 1975) are also allotted to the IV linkage group of Misro et al. (1966) since Ai-Pc is placed in that group in the present studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00027004
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  • 12
    Electronic Resource
    Electronic Resource
    Dwarfing and lethal genes in apple progenies (1976)
    Springer
    Euphytica 25 (1976), S. 505-514 
    Details
    ISSN: 1573-5060
    Keywords: Malus sp. ; apple ; dwarfing ; lethality ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Three dwarf types are described, early dwarf, determined by two recessive genes d 1 and d 3, in the double homozygous state, and an additional recessive gene d 4 and crinkle dwarf and sturdy dwarf each also determined by a recessive gene. The gene l, for pale green lethal was found to be closely linked to the gene V f , for scab resistance. There was evidence of a regrowth promoting gene, G, in some seedlings homozygous for d 1 and d 3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041585
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  • 13
    Electronic Resource
    Electronic Resource
    Inheritance of scent in rice (1976)
    Springer
    Euphytica 25 (1976), S. 659-662 
    Details
    ISSN: 1573-5060
    Keywords: Oryza sativa ; rice ; scent ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Inheritance of scent in rice and its association with pigmented characters were studied in T-141 × K-44-1. Four complementary genes appeared to control scent, one of them showing linkage with a complementary gene for glume colour and a supplementary gene for red pigment in apiculus. This group formed part of V (Prp)linkage group of Misro et al. (1966) in which case Pg and P were additions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041603
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  • 14
    Electronic Resource
    Electronic Resource
    Variation in pigment content of flour color in bread wheat (Triticum aestivum L.) (1976)
    Springer
    Euphytica 25 (1976), S. 685-691 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat flour color ; flour pigment content ; variation ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Variation in pigment content of the flour of bread wheats (Triticum aestivum L.) was studied in the progenies of F1 and F2 of three crosses and their reciprocals. Reciprocal differences in pigment content were observed in the F1 and F2 means. Low pigment content was found to be partially dominant or over dominant in the crosses studied. There was evidence of substantial mid-parent F1 heterosis in all crosses and betterparent F1 heterosis in three crosses. In the F2, heritability estimates were moderate to high. The F2 frequency distributions were not normal. Estimation of effective factor pairs indicated the presence of one or two major gene pairs involved in the expression of pigment content in the flour. Action of modifiers was also assumed in one cross and its reciprocal. A factorial approach to metrical character suggested that the F2 segregation ratios of low pigment content to high pigment content were 3:1, 15:1, 13:3 and 9:7 for the different crosses. Utilization of the findings in a wheat breeding program is briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00041607
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  • 15
    Electronic Resource
    Electronic Resource
    Genetic interpretations of the effects of bulk breeding on four populations of beans (Phaseolus vulgaris L.) (1977)
    Springer
    Euphytica 26 (1977), S. 75-83 
    Details
    ISSN: 1573-5060
    Keywords: Phaseolus vulgaris ; common bean ; selection ; bulk breeding ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effects of bulk breeding on yield and its components in two high-yeilding and two low-yielding bean populations when grown at crop densities are interpreted in terms of gene action and selection. There was considerable additive variation in the crosses, dominance effects were variable but tended to be negative. The results were compared with results obtained at low density by another worker with the same populations, and this showed that interpretations of gene action in hybrid vigour depend on the test environment used. The interpretations were also compared with plant breeding interpretations made on the same material (Hamblin, 1977), and it was found that a single pattern of response to natural selection, in plant breeding terms, may be explained by more than one genetic interpretation and, conversely, a single genetic interpretation may result in different patterns of response in plant breeding terms. The value of composite crosses in plant breeding are discussed and it is concluded that there is a greater chance of producing improved lines from a large number of simple crosses than from a smaller number of composite crosses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00032071
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  • 16
    Electronic Resource
    Electronic Resource
    Genetics of self-compatibility in dihaploids of Solanum tuberosum L. 2. Detection and identification of all possible incompatibility and compatibility genotypes in six F1'S from interdihaploid crosses (1978)
    Springer
    Euphytica 27 (1978), S. 1-11 
    Details
    ISSN: 1573-5060
    Keywords: Self-compatibility ; genetics ; dihaploids ; Solanum tuberosum ; translocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Two self-compatible (sc) dihaploids, G254 and B16, and one self-incompatible (si) dihaploid, G609, from Solanum tuberosum L. were intercrossed reciprocally. Segregation ratios sc : si : pc (pseudo-compatible) were determined in all 6 F1's in three successive years and critically tested and discussed. Genotypes at the S-locus could be assigned to the dihaploid parents and the S-allele on the translocation in sc G254 identified as S 1. Using these genotypes all sc and si genotypes were derived which could be expected in the F1's. Incompatibility groups were detected in each F1 from the results of complete diallels involving si plants. The genotype of each group was identified by test crosses. Compatibility groups could be both detected and identified by crossing in each F1 the sc plants as females with the already identified si sibs. In this way a complete series of 6 si testers and corresponding sc genotypes was obtained involving four alleles at the S-locus and S 1 and S x on the translocation. Certative disadvantage of pollen carrying the translocation could be ruled out as a possible cause of unexpected ratios. The hypothesis of an S-bearing translocation as the cause of self-compatibility could account for all results on the assumption that translocation homozygotes are lethal and the S-allele on the translocation is active in the pollen only.
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    URL: http://dx.doi.org/10.1007/BF00039113
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  • 17
    Electronic Resource
    Electronic Resource
    Inheritance and linkage relationship of scent in rice (1979)
    Springer
    Euphytica 28 (1979), S. 319-323 
    Details
    ISSN: 1573-5060
    Keywords: Oryza sativa ; rice ; scent ; genetics ; linkage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The inheritance of scent in rice and linkage relationship of genes governing scent with those controlling leaf sheath colour, ripening hull colour and apiculus pigmentation were studied in a cross between Pankaj (nonscented) and Kalabhat (scented) rice cultivars. The scent was identified by leaf analysis. Two dominant complementary genes Sk 1 and Sk 2 were found to be responsible for controlling scent. Either of the genes produce mild scent, the presence of both Sk 1 and Sk 2 is necessary for production of parental type scent. The genes were independent of other genes controlling leaf sheath colour, ripening hull colour and apiculus pigmentation.
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    URL: http://dx.doi.org/10.1007/BF00056589
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  • 18
    Electronic Resource
    Electronic Resource
    Linkage studies in rice (Oryza sativa L.): Flowering, growth habit and pigmentation (1979)
    Springer
    Euphytica 28 (1979), S. 435-443 
    Details
    ISSN: 1573-5060
    Keywords: Oryza sativa ; Rice ; inheritance ; flowering ; growth habit ; pigmentation ; linkage ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Genetic analysis of ten characters in a rice cross M 18 × T979 revealed the interaction of duplicate, complimentary, inhibitory and anti-inhibitory genes in conditioning pigment in eight characters and in determining flowering and growth habit. The action of genes and their interactions indicated by complex ratios for all the ten characters are claimed to be the first reports. pleiotropic action of two complementary genes and four duplicate genes has been detected. Two linkage groups, one with three genes (Ai-Plg-Ai-Pau-Pja) and the other with nine genes (Plga-Pina-Era-Efa-I-Plg-Pg1-Pn1-Pr1-Pnr1) have been constituted. The three-gene group is tentatively placed in the IV ‘mp’ group and the other with nine genes is assigned to the X ‘fh’ group. As a result of the present investigation Ai-Plg is an addition to the IV ‘mp’ group and Plga, Pina, Era, I-Plg, Pg1, Pn1 Pr1 and Pnr1 are contributions to the X ‘fh’ group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00056602
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  • 19
    Electronic Resource
    Electronic Resource
    Field resistance to late blight and potato root eelworm in group tuberosum dihaploids (1978)
    Springer
    Euphytica 27 (1978), S. 305-315 
    Details
    ISSN: 1573-5060
    Keywords: Solanum group Tuberosum ; potato ; dihaploids ; Phytophthora infestans ; late blight ; Globodera spp. ; potato root celworm ; field resistance ; genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary An examination of the feasibility of obtaining dihaploids with high levels of field resistance to important potato pathogens, showed that dihaploids may be produced which are more resistant to late blight or to potato root eelworm pathotype E than are their tetraploid parents. The significance of this is discussed in relation to the possible types of gene action involved in conferring field resistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039146
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  • 20
    Electronic Resource
    Electronic Resource
    Genetics of five hairy phenotypes and a linkage group of Pennisetum americanum (1979)
    Springer
    Euphytica 28 (1979), S. 445-451 
    Details
    ISSN: 1573-5060
    Keywords: Pennisetum americanum ; pearl millet ; hairiness ; genetics ; linkage relations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In pearl millet hairy lamina, hairy sheath and hairy stem were inherited as monofactorial recessives while hairy leaf margin and hairy node were inherited as monogenic dominant traits. The gene for hairy lamina hl showed independent assortment from the gene for hairy node, Hn, and showed linkage with the genes hst (hairy stem), hs (hairy sheath) and Hm (hairy leaf margin). Furthermore, Hl was observed to have an epistatic effect on the expression of hs. The percentages of recombination between the gene pairs hl-hst, hl-hs and hl-Hm were 0.0, 8.30±0.44 and 19.81±0.98 respectively. Thus the genes hl-hst-hs Hm form one linkage group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00056603
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