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  • 1
    Electronic Resource
    Electronic Resource
    Increasing grain yield of oats by independent culling for harvest index and vegetative growth index or unit straw weight (1985)
    Springer
    Euphytica 34 (1985), S. 33-41 
    Details
    ISSN: 1573-5060
    Keywords: Avena sativa ; oats ; selection ; independent culling ; harvest index ; vegetative growth index ; unit straw weight ; biological yield ; growth rate ; heritability ; genotypic correlatin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Most variation in grain yield of oats is due to variation in harvest index and vegetative growth index, but the latter traits are negatively associated. Therefore we used independent culling levels to select oat genotypes with high levels of vigor traits and a desirable level of harvest index in an attempts to maximize grain yield. Harvest index and vegetative growth index or harvest index and unit straw weight were selected at various culling levels. Intensive selection for harvest index resulted in high harvest index but no grain yield improvement, because the selected lines had poor vigor. Intensive selection for vegetative growth index or unit straw weight resulted in high biomass but low harvest index. The most effective combination of culling levels was to select 25% of the original population for harvest index and, subsequently, to select for vegetative growth index or unit straw weight at an 8% intensity in the remnant population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00022861
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Growth rate inheritance and associations with other traits in backcross populations of Avena sativa x A. sterilis (1977)
    Springer
    Euphytica 26 (1977), S. 309-317 
    Details
    ISSN: 1573-5060
    Keywords: Avena sativa ; oats ; Avena sterilis ; interspecific cross ; growth rate ; straw yield ; grain yield ; heading date ; harvest index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Improved grain yields in lines of oats from matings of Avena sativa x A. sterilis were found to be due to increased plant growth rate. Growth rates of oats were quantitatively inherited, with the minimum number of effective factor pairs segregating in the interspecific matings ranging from 3 to 9. Heritability values for this trait averaged 0.4. Growth rate was highly and positively correlated with bundle weight, straw yield, grain yield, and unit straw weight, but it was uncorrelated with heading date and harvest index. Correlations with plant height were low. Thus, it should be possible for oat breeders to combine the high growth rates from A. sterilis with any combination of agronomic traits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00026992
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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