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230 results on '"Brazaitytė, Aušra"'

6. Contributors

Author

Brazaitytė, Aušra, primary, Duchovskis, Pavelas, additional, Green, Andrew, additional, Koutchma, Tatiana, additional, Miliauskienė, Jurga, additional, Popović, Vladimir, additional, Rasiukevičiūtė, Neringa, additional, Samuolienė, Giedrė, additional, Valiuškaitė, Alma, additional, Vaštakaitė-Kairienė, Viktorija, additional, and Viršilė, Akvilė, additional

Published
2019
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10. Defense response of strawberry plants against Botrytis cinerea influenced by coriander extract and essential oil

Author

Dėnė, Lina, primary, Laužikė, Kristina, additional, Rasiukevičiūtė, Neringa, additional, Chrapačienė, Simona, additional, Brazaitytė, Aušra, additional, Viršilė, Akvilė, additional, Vaštakaitė-Kairienė, Viktorija, additional, Miliauskienė, Jurga, additional, Sutulienė, Rūta, additional, Samuolienė, Giedrė, additional, and Valiuškaitė, Alma, additional

Published
2023
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11. Vegetation Indices for Early Grey Mould Detection in Lettuce Grown under Different Lighting Conditions.

Author

Kupčinskienė, Asta, Brazaitytė, Aušra, Rasiukevičiūtė, Neringa, Valiuškaitė, Alma, Morkeliūnė, Armina, and Vaštakaitė-Kairienė, Viktorija

Subjects
LETTUCE, LETTUCE growing, NORMALIZED difference vegetation index, PRODUCTION losses
Abstract

Early detection of pathogenic fungi in controlled environment areas can prevent major food production losses. Grey mould caused by Botrytis cinerea is often detected as an infection on lettuce. This paper explores the use of vegetation indices for early detection and monitoring of grey mould on lettuce under different lighting conditions in controlled environment chambers. The aim was focused on the potential of using vegetation indices for the early detection of grey mould and on evaluating their changes during disease development in lettuce grown under different lighting conditions. The experiment took place in controlled environment chambers, where day/night temperatures were 21 ± 2/17 ± 2 °C, a 16 h photoperiod was established, and relative humidity was 70 ± 10% under different lighting conditions: high-pressure sodium (HPS) and light-emitting diode (LED) lamps. Lettuces were inoculated by 7-day-old fungus Botrytis cinerea isolate at the BBCH 21. As a control, non-inoculated lettuces were grown under HPS and LEDs (non-inoculated). Then, the following were evaluated: Anthocyanin Reflectance Index 2 (ARI2); Carotenoid Reflectance Index 2 (CRI2); Structure Intensive Pigment Index (SIPI); Flavanol Reflectance Index (FRI); Greenness (G); Greenness 2 (G2); Redness (R); Blue (B); Blue Green Index 2 (BGI2); Browning Index 2 (BRI2); Lichtenthaler Index 1 (LIC1); Pigment Specific Simple Ratio (PSSRa and PSSRb); Gitelson and Merzlyak (GM1 and GM2); Zarco Tejada–Miller Index (ZMI); Normalized Difference Vegetation Index (NDVI); Simple Ratio (SR); Red-Eye Vegetation Stress Index (RVSI); Photochemical Reflectance Index (PRI); Photochemical Reflectance Index 515 (PRI515); Water Band Index (WBI); specific disease index for individual study (fD); Healthy Index (HI); Plant Senescence Reflectance (PSRI); Vogelmann Red Edge Index (VREI1); Red Edge Normalized Difference Vegetation Index (RENDVI); and Modified Red Edge Simple Ratio (MRESRI). Our results showed that the PSRI and fD vegetation indices significantly detected grey mould on lettuce grown under both lighting systems (HPS and LEDs) the day after inoculation. The results conclusively affirmed that NDVI, PSRI, HI, fD, WBI, RVSI, PRI, PRI515, CRI2, SIPI, chlorophyll index PSSRb, and coloration index B were identified as the best indicators for Botrytis cinerea infection on green-leaf lettuce (Lactuca sativa L. cv Little Gem) at the early stage of inoculated lettuce's antioxidative response against grey mould with a significant increase in chlorophyll indices. [ABSTRACT FROM AUTHOR]

Published
2023
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19. Radish plant behaviour under short-term elevated ozone fumigation

Author

Sakalauskaitė Jurga, Brazaitytė Aušra, Urbonavičiūtė Akvilė, Samuolienė Giedrė, Šabajevienė Gintarė, Sakalauskienė Sandra, and Duchovskis Pavelas

Subjects
radish (raphanus sativus l.), ozone (o3), growth indices, photosynthetic pigments, saccharides, Biology (General), QH301-705.5
Published
2010
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20. Phenolic Compounds Content Evaluation of Lettuce Grown under Short-Term Preharvest Daytime or Nighttime Supplemental LEDs

Author

Brazaitytė, Aušra, primary, Vaštakaitė-Kairienė, Viktorija, additional, Sutulienė, Rūta, additional, Rasiukevičiūtė, Neringa, additional, Viršilė, Akvilė, additional, Miliauskienė, Jurga, additional, Laužikė, Kristina, additional, Valiuškaitė, Alma, additional, Dėnė, Lina, additional, Chrapačienė, Simona, additional, Kupčinskienė, Asta, additional, and Samuolienė, Giedrė, additional

Published
2022
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31. The distinct impact of multi-color LED light on nitrate, amino acid, soluble sugar and organic acid contents in red and green leaf lettuce cultivated in controlled environment

Author

Viršilė, Akvilė, primary, Brazaitytė, Aušra, additional, Vaštakaitė-Kairienė, Viktorija, additional, Miliauskienė, Jurga, additional, Jankauskienė, Julė, additional, Novičkovas, Algirdas, additional, Laužikė, Kristina, additional, and Samuolienė, Giedrė, additional

Published
2020
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38. Blue light dosage affects carotenoids and tocopherols in microgreens

Author

Samuolienė, Giedrė, primary, Viršilė, Akvilė, additional, Brazaitytė, Aušra, additional, Jankauskienė, Julė, additional, Sakalauskienė, Sandra, additional, Vaštakaitė, Viktorija, additional, Novičkovas, Algirdas, additional, Viškelienė, Alina, additional, Sasnauskas, Audrius, additional, and Duchovskis, Pavelas, additional

Published
2017
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40. Nutrient Levels in Brassicaceae Microgreens Increase Under Tailored Light-Emitting Diode Spectra.

Author

Samuolienė, Giedre, Brazaitytė, Aušra, Viršilė, Akvile, Miliauskienė, Jurga, Vaštakaitė-Kairienė, Viktorija, and Duchovskis, Pavelas

Subjects
BRASSICACEAE, EDIBLE greens, VITAMIN C, DIODES, BROCCOLI, NUTRITIONAL value, COLE crops, BLUE light
Abstract

To increase the nutritional value and levels of essential minerals in vegetable food, microgreens are promising targets. The metabolic processes of microgreens can be managed with different cultivation techniques, which include manipulating the properties of light derived by light-emitting diodes (LEDs). In this study Brassicaceae microgreens (kohlrabi Brassica oleracea var. gongylodes , broccoli Brassica oleracea , and mizuna Brassica rapa var. Japonica) were cultivated under different light spectral quality, and the metabolic changes insoluble sugars (hexoses and sucrose), ascorbic acid, β-carotene, and contents of non-heme iron (Fe) and its connection with magnesium (Mg) or calcium (Ca) levels were monitored. Plants grew under the primary LED light spectrum (the combination of blue light at 447 nm, red at 638 and 665 nm, and far-red at 731 nm) or supplemented with LED green light at 520 nm, yellow at 595 nm, or orange at 622 nm. The photoperiod was 16 h, and a total PPFD of 300 µmol m-2 s-1 was maintained. Under supplemental yellow light at 595 nm, the content of soluble carbohydrates increased significantly in mizuna and broccoli. Under all supplemental light components, β-carotene accumulated in mizuna, and ascorbic acid accumulated significantly in kohlrabi. Under supplemental orange light at 622 nm, Fe, Mg, and Ca contents increased significantly in all microgreens. The accumulation of Fe was highly dependent on promoters and inhibitors of Fe absorption, as demonstrated by the very strong positive correlations between Fe and Ca and between Fe and Mg in kohlrabi and broccoli, and the strong negative correlations between Fe and β-carotene and between Fe and soluble carbohydrates in kohlrabi. Thus, the metabolic changes that occurred in treated microgreens led to increases in the contents of essential nutrients. Therefore, selected supplemental LED wavelengths can be used in the cultivation of Brassicaceae microgreens to preserve and increase the contents of specific nutritionally valuable metabolites. [ABSTRACT FROM AUTHOR]

Published
2019
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