Anna J. Keutgen

ORCID: 0000-0001-7825-9782
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About
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Research Areas
  • Agriculture, Plant Science, Crop Management
  • Plant Physiology and Cultivation Studies
  • Postharvest Quality and Shelf Life Management
  • Potato Plant Research
  • Plant Stress Responses and Tolerance
  • Plant responses to elevated CO2
  • Plant Pathogens and Resistance
  • Berry genetics and cultivation research
  • Plant Growth Enhancement Techniques
  • Flowering Plant Growth and Cultivation
  • Light effects on plants
  • Botany and Plant Ecology Studies
  • Agricultural economics and policies
  • Plant and animal studies
  • Growth and nutrition in plants
  • Horticultural and Viticultural Research
  • Plant tissue culture and regeneration
  • Plant and soil sciences
  • Nutrition and Health Studies
  • Pineapple and bromelain studies
  • Plant Micronutrient Interactions and Effects
  • Magnetic and Electromagnetic Effects
  • Botanical Research and Applications
  • Banana Cultivation and Research
  • Phytochemicals and Antioxidant Activities

BOKU University
2014-2024

Bydgoszcz University of Science and Technology
2011-2020

AGH University of Krakow
2020

University of Vienna
2019

University of Life Sciences in Lublin
2012

University of Göttingen
2004-2008

University of Bonn
2001-2008

Advanced Science Research Center
2004-2005

Perennial ryegrass is a grass species used to establish lawns in urban areas where pollution major environmental problems. Cadmium (Cd) and nickel (Ni) contribute significantly these pollutants may cause photosynthetic limitation. The main objective of this work was perform comprehensive analysis efficiency perennial seedlings under Cd Ni stress. Some the indices (prompt delayed chlorophyll-a fluorescence signals modulated reflectance at 820 nm) were compared with growth parameters. Two...

10.1038/s41598-023-32324-x article EN cc-by Scientific Reports 2023-04-01

The responses of fruit antioxidants in two strawberry cultivars differing their sensitivity to NaCl stress were studied. sensitive cv. Elsanta and the less Korona treated with solutions 40 80 mmol/L nutrient solution. In general, moderate salinity resulted increases antioxidant capacity. Korona, salt increased activity superoxide dismutase contents glutathione, phenols, anthocyanins, while that ascorbic acid decreased. Elsanta, changes superoxid concentration comparable those but decrease...

10.1021/jf070010k article EN Journal of Agricultural and Food Chemistry 2007-04-13

Tomatoes are the most consumed vegetables worldwide and a valuable source of several antioxidants. The consumption tomato products from appropriate cultivars after suitable processing methods may significantly improve human diet. purpose this study was investigating variations in contents main antioxidants present fruits, new Cuban breeds yellow varieties, as well their changes during to puree ketchup. quality evaluation comprised detection lycopene, ascorbic acid total phenolics analysis...

10.3390/horticulturae8060547 article EN cc-by Horticulturae 2022-06-18

Abstract Climate has always been changing, but the current changes and climate models indicate a significant rapid increase of temperatures, atmospheric CO2 concentration, shifts in precipitation patterns consequently higher frequency, duration intensity extremes (frost, heat drought periods, heavy precipitation, hail, storms, floods, storm surges, etc.). Thus, agriculture on whole also agro-ecosystems are very susceptible highly vulnerable to effects these changes. The scenarios for...

10.1088/1755-1315/1183/1/012069 article EN IOP Conference Series Earth and Environmental Science 2023-05-01

The concentrations of the bioactive compounds in potato tubers are determined by both genetic potential and environmental factors. purpose experiment was to determine influence organic integrated production on expression with respect antioxidant properties evaluate its stability under different conditions. This phenotyping performed seven new breeding lines (tetraploid clones) three modern cultivars: Jelly, Satina Tajfun. results indicated that system location significantly influenced...

10.1371/journal.pone.0222976 article EN cc-by PLoS ONE 2019-09-25

The present study addressed the combination of nutritional and sensory quality assessment radish garden cress as microgreens cultivated in different amounts mineral nutrients under conditions that can be realized a private household. content value adding compounds was determined by means chemical analyses. Total flavor impression visual appearance were rated untrained consumer tests. In cotyledons (Raphanus sativus L.), carotenoid, total phenols, nitrate contents, antioxidant capacity...

10.3390/agronomy11061110 article EN cc-by Agronomy 2021-05-29

Strawberry cultivars differ in their sensitivity to NaCl; fruits of cv. Elsanta suffer from softening, whereas those Korona retain firmness. The mean fruit fresh weight is reduced up 46% and 26%. Cell walls grown under 0, 40, or 80 mmol/L NaCl were extracted analyzed. In Korona, the content alcohol-insoluble residue remained comparatively stable as salt levels increased but was Elsanta. water-soluble pectin fraction not affected low methoxy pectinates significantly, indicative generation...

10.1021/jf071216o article EN Journal of Agricultural and Food Chemistry 2007-08-04

In this study, three cultivars of potato and seven tetraploid breeding lines with different flesh colour were cultivated for years at four locations in Poland. The objectives study to quantify the levels total (TC) individual carotenoids (IC) determine influence genotype, farming system, growing location, years, environment on contents these components. aim was also identify genotypes stable level TC IC. mean content tubers ranged between 5.57 20.20 mg kg−1 FW influenced by year, their...

10.1007/s12230-019-09732-9 article EN cc-by American Journal of Potato Research 2019-08-05

The study aimed to assess the quality of spraying ornamental conifer using a multi-rotor drone. We examined how speed drone movement and propellers’ spin can affect deposition sprayed liquid in crown blue spruce (Picea pungens Engelm.). Due avoidance future droplet drift by air movements, an injector atomiser for was used, low altitude 0.6 m flying above tree used study. moved at two speeds: 0.57 m·s–1 0.94 m·s–1. speeds were adjusted based on drone’s weight with spray tank filled empty....

10.3390/agriculture13081584 article EN cc-by Agriculture 2023-08-09

Three treatments were used in two-year (2014-2015) field experiments with broccoli cv. Bejo 2914 F1: (1) untreated control; (2) Zn0.75 - Zinkuran SC as foliar fertiliser at the rate of 0.75 L/ha (375 g Zn/ha); (3) Zn1.50 1.50 (750 Zn/ha). The statistically significant differences individual parameters found after zinc applications. In both experimental years yield additional fertilisation was significantly higher by about 8.2-14.4% (Zn0.75) and 12.5-17.5% (Zn1.50), respectively, than...

10.17221/220/2017-pse article EN cc-by-nc Plant Soil and Environment 2017-06-12

Ficus carica is one of the most ancient cultivated crops, and grown mainly in Mediterranean region. In Austria, due to milder winters longer warm periods than normal, figs are becoming more productive popular among private growers. For future propagation some fig varieties, phytosanitary status eight accessions, representing four Austrian genotypes maintained a varietal collection plot, was investigated using PCR assays for presence fig-infecting viruses. The trees were infected with mosaic...

10.36253/phyto-14952 article EN cc-by Phytopathologia Mediterranea 2024-02-17

BACKGROUND: Tomato fruits are characterized by a good nutritional profile, including different bioactive compounds such as carotenoids, phenolic and ascorbic acid. The objective of this study was to analyze the content in fruit infection Phytophthora infestans 28 tomato genotypes from organic outdoor production. relationship between with P. estimated. Field experiments were carried out 2004 2005 at two locations central Germany. RESULTS: Significant variation among genotypes, years observed...

10.1002/jsfa.4720 article EN Journal of the Science of Food and Agriculture 2011-12-07

Abstract Photosynthetic properties and tuber yield were compared in seven tetraploid potato ( Solanum tuberosum L.) clones (‘13-VIII-10’, ‘13-VIII-27’, ‘13-VIII-45’, ‘13-VIII-49’, ‘13-VIII-50’, ‘13-VIII-60’, ‘TG-97-403’) three cultivars (‘Jelly’, ‘Satina’, ‘Tajfun’) at four localities Poland under either integrated (Młochów, Boguchwała) or organic (Radzików, Chwałowice) fertilisation conditions applying the ‘OJIP’ analysis of chlorophyll fluorescence kinetics. The yield-relevant parameters...

10.1007/s11540-019-09429-w article EN cc-by Potato Research 2019-07-02

This experiment analyzed the effect of genetic determinants, production technology, and location on nitrate nitrites content in potato tubers directly after harvest. Nitrates are anti-nutritional compounds, which limit or prevent use nutrients from consumed products have a detrimental human body. The study was conducted seven tetraploid (Solanum tuberosum L.) clones (‘13-VIII-10’, ‘13-VIII-27’, ‘13-VIII-45’, ‘13-VIII-49’, ‘13-VIII-50’, ‘13-VIII-60’, ‘TG-97–403’), three cultivars (‘Jelly’,...

10.3390/agronomy12102415 article EN cc-by Agronomy 2022-10-05
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