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  • 1
    Electronic Resource
    Electronic Resource
    Assessment of Loss caused by Barley Mildew using Single Tillers (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 24 (1975), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A method for estimating losses due to foliar diseases with more precision, using little space and time and without the need for artificially producing different levels of disease, is described. Randomly selected tillers were labelled with their mildew level on leaf 2 at growth stage 10.5 and the ripe ears harvested to obtain values for seed number, seed weight and yield for each ear. Regressions of all three parameters on mildew level were negative and highly significant. Converted to per cent loss equations the mean regression coefficients for cvs. Ymer and Golden Promise were:—seed weight on mildew, 0·257; seed number on mildew, 0·291; and yield/ear on mildew, 0·498. There was no evidence of non-linearity in the response of yield loss to mildew.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1975.tb01852.x
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  • 2
    Electronic Resource
    Electronic Resource
    Yield-loss Relationships in Cereals (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 25 (1976), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The results of six studies using precision methods to obtain quantitative yield-loss relationships are reported. Losses ranged from 100 per cent for Pyrenophora graminea on barley, to 51 per cent in a simulated grazing trial on wheat, 20 and 8 per cent respectively for Fusarium nivale and Rhizoctonia solani causing culm lesions on wheat, and 12 per cent for yellow rust on barley. Evidence of interactions between seed treatment with mercury, F. nivale infection and mildew on barley is also presented, in which seed treatment was beneficial regardless of seed infection, and F. nivale intensified the loss due to mildew.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3059.1976.tb01910.x
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    Paper (German National Licenses)
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