<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In general, varieties of any cultivated species can differ in many aspects. One of the desirable traits in breeding new varieties is high yield, which can be significantly reduced by plant diseases. This study is an extension of previous research about the resistance of seed pea lines to downy mildew, and provides an extended analysis of this type of experiment. The probability of a degree of infection is determined based on a logistic model with a multinomial distribution. In the analysis the impact of a fixed effect of variety and random environmental effects is considered. It is shown that the environmental effects (combinations of years and location – macro-environments) significantly influence the resistance to diseases, and the differences among environments are larger than the variability of differences among genotypes over all environments. For two types of soils (light and rich) the most resistant varieties, which are significantly different from the control variety, are indicated.</p>
</abstract>

In general, varieties of any cultivated species can differ in many aspects. One of the desirable traits in breeding new varieties is high yield, which can be significantly reduced by plant diseases. This study is an extension of previous research about the resistance of seed pea lines to downy mildew, and provides an extended analysis of this type of experiment. The probability of a degree of infection is determined based on a logistic model with a multinomial distribution. In the analysis the impact of a fixed effect of variety and random environmental effects is considered. It is shown that the environmental effects (combinations of years and location – macro-environments) significantly influence the resistance to diseases, and the differences among environments are larger than the variability of differences among genotypes over all environments. For two types of soils (light and rich) the most resistant varieties, which are significantly different from the control variety, are indicated.

Environmental impact on downy mildew infection for different pea varieties

Department of Mathematical and Statistical Methods

Biometrical Letters

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Environmental impact on downy mildew infection for different pea varieties"}

In general, varieties of any cultivated species can differ in many aspects. One of the desirable traits in breeding new varieties is high yield, which can be...

Environmental impact on downy mildew infection for different pea varieties

Publié en ligne: 30 juin 2022

Pages: 11 - 22

DOI: https://doi.org/10.2478/bile-2022-0002

Mots clés
multi-environment trials, resistance of variety, infection, goodness of fit, logistic models

© 2022 Ewa Bakinowska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Environmental impact on downy mildew infection for different pea varieties

Publié en ligne: 30 juin 2022

Pages: 11 - 22

DOI: https://doi.org/10.2478/bile-2022-0002

Mots clésmulti-environment trials, resistance of variety, infection, goodness of fit, logistic models

© 2022 Ewa Bakinowska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
multi-environment trials, resistance of variety, infection, goodness of fit, logistic models