Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Tolerance of spring barley cultivars to leaf rust, Puccinia hordei (1980)
    Springer
    Euphytica 29 (1980), S. 209-216 
    Details
    ISSN: 1573-5060
    Keywords: Hordeum vulgare ; barley ; Puccinia hordei ; leaf rust ; brown rust ; tolerance ; cultivars
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Fifteen spring barley cultivars were evaluated in two years for their tolerance to leaf rust, Puccinia hordei. The consistency between the results obtained in the two experiments was rather poor. The most tolerant cultivars produced low seed yields, the least tolerant ones high seed yields. A strongly negative relationship existed between harves-index and tolerance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00025116
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Selection for yield in small plots of spring wheat (1982)
    Springer
    Euphytica 31 (1982), S. 549-564 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; grain yield ; selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Four selection experiments were sown: single-row plots with single row-spacing (≃20 cm), single-row plots with double row spacing (≃40 cm), three-row plots and six-row plots both with single row-spacing (≃20 cm). Selection entries were mimiced by 16 different varieties or advanced breeding lines, which were also sown in a yield trial. Each experiment was laid out as a 4-times replicated randomized block design. Row length was 2 m. Alley borders and border-rows of multiple-row plots were harvested separately to evaluate the effects of different harvesting procedures on the selection efficiency. Removal of alley borders was found to be disadvantageous, since the gain in precision was more than offset by the loss in sampled area. Wide spacing of single-row plots improved the selection efficiency in comparison with normal spaced single-row plots. In multiple-row plots the selection efficiency was not improved by harvesting only the central rows. For gross plot yield (= yield of net plot + yield of alley borders) the differences in selection efficiency between the various selection plot-types were explained on the basis of the genetic variance, the environmental variance and the coefficient of genetic correlation with ‘farm’ yield as determined in the yield trial.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039193
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Differences between spring wheat cultivars in early growth (1986)
    Springer
    Euphytica 35 (1986), S. 273-292 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; growth analysis ; relative growth rate ; selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Twelve spring wheat cultivars were grown as isolated plants in the field and their pre-anthesis growth was interpreted in terms of plant growth analysis. Relative growth rate (RGR) decreased steadily with time due to a decline of leaf area per unit plant weight (LAR), which could be explained by the reduction of the portion of leaf weight in total plant weight (LWR). Growth per unit leaf area (NAR) and leaf area per unit leaf weight (SLA) changed only little with time. Differences between cultivars for NAR and LAR were of similar magnitude: both 8% when measured by the genetic coefficient of variation. Because both quantities were negatively correlated, the genetic variation of RGR was only 5%. Genetic variation for LWR and SLA were also of similar size, both about 4%. Estimates of genetic variances and covariances based on cultivar means appeared to be biased strongly when the error variation of the means was neglected. Special attention is paid to the methodology of plant growth analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00028566
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Changes in relative growth rate with plant ontogeny in spring wheat genotypes grown as isolated plants (1985)
    Springer
    Euphytica 34 (1985), S. 833-847 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; growth analysis ; relative growth rate ; selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary For a better insight in the effect of wide spacing on the outcome of plant selection in spring wheat, the growth of free-grown individual plants was followed in time for each of 12 cultivars. As time proceeded, the cultivar differences for per-plant weight showed progressively less relation with those for seedling weight. At anthesis, the genetic correlation with seedling weight was still about 0.80, but at final harvest it was only 0.06. This contrasted with the genetic correlation between seedling weight and final biomass in closely planted mixtures which was on the average 0.77. The outcome of selection of genotypes in isolation is therefore expected to deviate substantially from that of selection in densely planted segregating populations where the differences in initial size tend to be maintained in time. The ranking of the varieties grown in isolation changed in time because of differences in relative growth rate (RGR). The genetic variance of RGR decreased much less with time than RGR itself. Late-flowering varieties showed the higher RGR so that these varieties improved their position in the ranking in isolation. Special attention is paid to the methodology of plant growth analysis in variety experiments and in estimating means and variances of RGR.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00035422
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Environmental and genetic variation for protein content in winter wheat (Triticum aestivum L.) (1979)
    Springer
    Euphytica 28 (1979), S. 209-218 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; grain protein content ; genetic variation ; harvest-index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary There is a considerable amount of variation in the protein content of wheat kernels. This variation may be induced by environmental factors, but can also be attributed to genetic differences. Within a genotype the correlation between grain yield and grain protein content can be either close to zero, positive, or negative. depending on the fertility level. Between genotypes this correlation is strongly negative. It is argued that the negative inter-genotypic correlation is largely a consequence of the high harvest-index of high yielding varieties. Breeding methods to alleviate the negative yield-protein content relationship are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00056577
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Ueber Nitro- und Amidoderivate des Chinolins (1885)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 18 (1885), S. 1243-1251 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.188501801267
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...