Lorenz Kottmann

ORCID: 0000-0002-9957-1115
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About
Contact & Profiles
Research Areas
  • Wheat and Barley Genetics and Pathology
  • Crop Yield and Soil Fertility
  • Plant responses to elevated CO2
  • Plant Water Relations and Carbon Dynamics
  • Soil Moisture and Remote Sensing
  • Agronomic Practices and Intercropping Systems
  • Greenhouse Technology and Climate Control
  • Soil and Unsaturated Flow
  • Entomological Studies and Ecology
  • Agriculture, Plant Science, Crop Management
  • Plant and fungal interactions
  • Allergic Rhinitis and Sensitization
  • Hemiptera Insect Studies
  • Botany and Plant Ecology Studies
  • Genetics and Plant Breeding
  • Atmospheric chemistry and aerosols
  • Leaf Properties and Growth Measurement
  • Agricultural Economics and Policy
  • Environmental Science and Technology
  • Horticultural and Viticultural Research
  • Plant Physiology and Cultivation Studies
  • Landslides and related hazards
  • Winter Sports Injuries and Performance
  • Bioenergy crop production and management
  • Organic Food and Agriculture

Julius Kühn-Institut
2014-2025

University of Hohenheim
2019

ABSTRACT Free air carbon dioxide enrichment (FACE) offers a unique approach to study the response of crops rising (CO 2 ) concentrations under field conditions. We have established Miglietta‐type FACE facility in Northern Germany (JKI‐FACE) consisting four rings with CO fumigation and without diameters 15.5 m. Here, we present technical details performance JKI‐FACE based on thee‐year data (2022–2024) regarding temporal spatial distribution. Our results indicated that high‐frequency (1‐min)...

10.1111/jac.70034 article EN cc-by Journal of Agronomy and Crop Science 2025-02-12

Abstract. Soil water content and matric potential are central hydrological state variables. A large variety of automated probes sensor systems for monitoring exist frequently applied. Most applications solely rely on the calibration by manufacturers. Until now, there has been no commonly agreed-upon procedure. Moreover, several opinions about capabilities reliabilities specific sensing methods or compete. consortium institutions conducted a comparison study currently available soil under...

10.5194/essd-12-683-2020 article EN cc-by Earth system science data 2020-03-23

Abstract To examine the extent to which heat stress during grain filling impacts on development and yield of winter wheat ( Triticum aestivum L.), a 3‐year field experiment was conducted loess soil with high water holding capacity in North German Plain. Thirty‐two mostly European cultivars were exposed mobile foil tunnel maximum air temperatures 45.7, 45.4, 47.2°C 2015, 2016, 2017, respectively. The 14‐day post‐anthesis treatment caused an average 57.3% reduction compared close‐by...

10.1111/jac.12410 article EN cc-by Journal of Agronomy and Crop Science 2020-04-22

Abstract Crop models are valuable tools for simulating and assessing genotype‐by‐environment interactions. In most studies, these parameterized based on crop data from a few sites years, which often limits their applicability to broader geographic context. Therefore, we utilize countrywide multi‐environment variety trial in this study implement genotype‐specific model parameterization winter rye ( Secale cereale L.) Germany. We use the Environment REsource Synthesis (CERES) originally used...

10.1002/agj2.21590 article EN cc-by-nc-nd Agronomy Journal 2024-05-27

Abstract Atmospheric CO 2 enrichment affects C3 crops both directly via increased carbon gain and improved water use efficiency indirectly higher temperatures more frequent climatic extremes. Here we investigated the response of spring wheat ( Triticum aestivum L. cv. Triso) to (550 vs. 380 µmol/mol) heat, applied as a constant +4°C increase or typical heat wave either before after anthesis, two waves anthesis. We climate chamber approach closely mimicking ambient conditions. above‐ground...

10.1111/jac.12345 article EN Journal of Agronomy and Crop Science 2019-05-24

Abstract Even in the temperate climates of Europe, increasing early season drought and rising air temperature are presenting new challenges to farmers wheat breeders. Sixteen winter ( Triticum aestivum L.) genotypes consisting three hybrids, six line cultivars two breeding lines from Germany as well five France, Austria, Slovakia, Hungary Ukraine (referred “exotic” lines) have been included this study. The genetic materials were evaluated over growing seasons under a range soil moisture...

10.1111/jac.12322 article EN Journal of Agronomy and Crop Science 2018-12-11

Abstract Carbon isotope discrimination (∆) has been proposed as selection criterion for grain yield under dry conditions, and ash content (m a ) mineral concentration were suggested surrogates ∆. In this study, the relationship between yield, ∆, m (Si, Ca, K, Mg) was examined in 2011 2012 on 16 winter rye genotypes grown severe drought, mild drought (2012 only) well‐watered conditions. Analyses performed mature flag leaves grains. Highly significant differences water regimes occurred all...

10.1111/pbr.12198 article EN Plant Breeding 2014-06-27

Abstract Canopy temperature has been recognised as an indicator of crop water status and may thus be a useful secondary trait in selecting for yield under dry conditions. The aim this study was to test the suitability canopy depression ( CTD = T air − ) temperate climate with winter rye, by means three infrared IR measuring devices. In years 2011 2012, 16 rye genotypes were examined drought stress conditions rainout shelter well‐watered each year, determined several times during growth...

10.1111/jac.12035 article EN Journal of Agronomy and Crop Science 2013-07-19

Ein optimiertes Aussaatmuster mit gleichmasigen Abstanden zwischen den Pflanzen erhoht nutzbaren Standraum je Einzelpflanze und reduziert intraspezifische Konkurrenzeffekte. Neben hoheren stabileren Ertragen sind auch Vorteile hinsichtlich Ressourcennutzungseffizienz, Stresstoleranz Unkrautunterdruckungsvermogen zu erwarten. Aktuell wird Getreide vorwiegend in Drillsaat ausgebracht, was nicht dem pflanzenbaulichen Optimum entspricht, jedoch eine hohe Flachenleistung ermoglicht....

10.5073/jfk.2019.04.03 article DE DOAJ (DOAJ: Directory of Open Access Journals) 2019-04-01

Summary Scientific facts about the relationships between goals are indispensable for rational social discourse on solving various conflicting way to sustainable crop production. Therefore, German Society Agronomy has compiled scientific findings topics of biodiversity, climate relevance and resilience, nutrient management, protection, soil protection production renewable raw materials, identified existing need research. After an executive summary that highlights findings, subject areas...

10.2478/boku-2022-0011 article EN cc-by-nc-nd Die Bodenkultur Journal of Land Management Food and Environment 2022-09-01

Rye is a small-grain cereal with an extensive and well-branched root system that particularly suitable for grain production in marginal environments where other cereals, especially wheat, cannot thrive well. However, no significant genetic gain could be achieved to improve plant height lodging resistance the last 30 years rye. Thus, relatively low grain-to-straw ratio currently hinders rye from becoming more integrated into crop rotations. Here, we report first results on effects of...

10.1016/j.fcr.2023.109151 article EN cc-by Field Crops Research 2023-10-04
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