A5075753619- Plant Virus Research Studies
- Transgenic Plants and Applications
- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Plant and Fungal Interactions Research
- Plant tissue culture and regeneration
- Garlic and Onion Studies
- Insect-Plant Interactions and Control
- Plant Physiology and Cultivation Studies
- Plant Pathogenic Bacteria Studies
- Plant Pathogens and Fungal Diseases
- Plant Disease Resistance and Genetics
- Agriculture, Plant Science, Crop Management
- Insect and Pesticide Research
- Genetic and phenotypic traits in livestock
- Plant Reproductive Biology
- Genetic Mapping and Diversity in Plants and Animals
- Philosophy and Theoretical Science
- Plant Pathogens and Resistance
- Psychoanalysis and Social Critique
- Fungal Plant Pathogen Control
- Philosophy, Science, and History
- Crop Yield and Soil Fertility
- Nietzsche, Schopenhauer, and Hegel
- Powdery Mildew Fungal Diseases
University of Applied Labour Studies of the Federal Employment Agency
2020
Bundeskriminalamt
2004-2018
University of Bamberg
2011
Wala Heilmittel (Germany)
2010
Osnabrück University
2001
Institut für Bodenkultur und Pflanzenbau
1989-1993
Johannes Gutenberg University Mainz
1992
Martin Luther University Halle-Wittenberg
1989-1991
Deutsches Institut für Tropische und Subtropische Landwirtschaft
1985-1990
Carl Zeiss (Germany)
1989
Over the last 32 years, a large gain in grain yield (24 %) was achieved official German variety trials, and despite considerable loss protein concentration (-7.9 %), winter wheat baking quality partially improved over years. On-farm (32 exceeded but at level about 25 dt ha -1 lower. Breeding progress very successfully transferred into both on-farm quality. Long-term gains of 316 varieties from trials were evaluated. We dissected genetic non-genetic part to quantify contribution improvement....
Yield progress in major German crops is generated mostly due to genetic improvement over the last 30 years. Comparison of trial-station with on-farm yield reveals considerable gaps that are widening time. newly released varieties for 12 from official trials period 1983 until 2012 was analysed assess their value cultivation and use (VCU). We paid special attention dissect into a non-genetic (agronomic) trend order quantify contribution made by new agronomic factors. In this study, we apply...
Grain yield of hybrid varieties and population in official German variety trials increased by 23.3 18.1%, respectively, over the last 26 years. On-farm gain grain (18.9%) was comparable to that trials, yet at a level considerably lower than trials. Rye quality is subject large year-to-year fluctuation. Increase decline protein concentration did not negatively influence traits. Performance progress traits 78 winter rye tested assess value for cultivation use (VCU) were evaluated during 1989...
Evaluation of breeding progress for spring barley varieties in Germany showed that both grain yield and malting quality were considerably improved during the last 33 years, genetic effects protein concentration traits not associated. Based on historical data, this study aimed to investigate potential 187 tested released German registration trials evaluate value cultivation use (VCU) 1983-2015, quantify environmental variability association among traits. We used mixed linear models with...
Abstract Genotypic, environmental and genotype by variability of 30 different crops was evaluated estimating variance components from trial series in 16 years. Yield data official German variety trials for cultivation use (VCU) were analysed over the period 1991 to 2006. The natural dominant part pure variation. Genotype, environment plot error are smaller same magnitude. Interaction genotypes with locations is larger than Compared component estimates a study involving former West VCU...
Plant breeding and official variety testing involve the challenge to design multienvironmental trials in several years locations. Several variables influence performance and, therefore, possible selection gain of such trials. We provide a simulation‐based approach using SAS vary these allow comparison different scenarios for series regarding gain. Our builds on FORTRAN software tool SELSYS. Three examples its application are given.
Abstract Alpha‐designs have become popular in cultivar trials. Analysis is based on a mixed model. As result of imbalance, inference tests require approximate methods. This paper investigates the Type I error control different Satterthwaite approximations for denominator degrees freedom Wald‐type F ‐tests and t two‐factorial alpha‐design with cultivars as subplot factor management intensities (fertilization, plant protection) main plot factor. Simulation results demonstrate good comparison...
Abstract Measurement of the characteristics quantitative resistance in plum to pox virus and evidence for their interrelations Two clones, with different degrees susceptibility towards (PPV), were inoculated either a weakly or strongly pathegonic strain PPV. The symptoms which developed older leaves (i. e. 3rd 5th basal leaves) measured by visual rating as well aid UV‐VIS‐spectralphotometer SPECORD M 40. Additionally, relative concentrations these determined ELISA. Significant differences...