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  • 1960-1964  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 13 (1964), S. 305-313 
    ISSN: 1573-5060
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Research was conducted to study the inheritance of the characteristic ‘dentated leaves’ in the autotetraploid grass species Dactylis glomerata. From segregation ratios of inbred and crossbred populations the following conclusions can be drawn: 1. Harshness of leaves is a dominant character. Simplex plants have a dominant phenotype but are less strongly dentated than duplex plants. 2. From the figures obtained it cannot be established with certainty how many genes are involved in the character harshness of leaves. Most cases can be explained by assuming one dominant factor, possibly supplemented by minor genes. However, the existence of complementary factors is not excluded, while also a system of more factors with partial dominance is a possible explanation. 2. The figures can be best explained by including the occurrence of double reduction in the computations. However, it is not possible to establish the coefficient \ga with reliability.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Euphytica 10 (1961), S. 43-48 
    ISSN: 1573-5060
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Samenvatting Bij timothee bestaat een groot verschil tussen de hooitypen en de weidetypen. Daar tussentypen in de verzamelde populaties zeldzaam bleken te zijn, werd onderzocht welke perspectieven kruisingen tussen vroege en late planten bieden. Van kruisingen tussen drie late klonen en halmen uit de tweede snede van drie vroege klonen worden de F1 en F2 planten beschreven. De schiettijden in beide generaties gevonden lagen ongeveer intermediair ten opzichte van de kruisingsouders, wat ook voor andere eigenschappen als bijvoorbeeld zodevorming het geval was. De productiviteit lag op een hoog niveau. De uniformiteit voor de schiettijd bij vele families in de F2 was veelbelovend, hetgeen in verband gebracht wordt met het autohexaploide karakter van timothee. Gesuggereerd wordt daarom weidetype rassen van timothee aan te vullen of mogelijk te vervangen door kruisingsrassen, die voldoende zodevorming en beweidingsresistentie kunnen combineren met een snellere ontwikkeling dan de zuievere weidetypen.
    Notes: Abstract Crosses between early and late heading timothy plants produced plants of an intermediate type which gave the impression of being valuable for breeding purposes. The F1- and F2-generations are described. The F2 was fairly uniform. The parent types were scarce in the F2 which is explained by the autohexaploid character of timothy.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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