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001-es BibID:BIBFORM100875
035-os BibID:(cikkezonosító)3339 (WOS)000774243700001 (Scopus)85126999358
Első szerző:Csajbók József (agrármérnök)
Cím:Multispectral Analysis of Small Plots Based on Field and Remote Sensing Surveys-A Comparative Evaluation / József Csajbók, Erika Buday-Bódi, Attila Nagy, Zsolt Zoltán Fehér, András Tamás, István Csaba Virág, Csaba Bojtor, Fanni Forgács, Attila Miklós Vad, Erika Kutasy
Megjegyzések:Remote sensing is an efficient method of monitoring experiments rapidly and by enabling the collection of significantly more detailed data, than using only field measurements, ensuring new possibilities in scientific research. A small plot field experiment was conducted in a randomized block design with winter oat (Avena sativa L.) varieties in Debrecen, Hungary in the 2020/2021 cropping year. Multiple field measurements and aerial surveys were carried out examining the response of oat on Silicon and Sulfur foliar fertilization treatments thereby monitoring their effects on the physiology, production and stress tolerance. Parallel application of in situ (elevation, soil pH, NDVI, SPAD, chlorophyll content) and aerial (NDVI, NDRE) surveys including unmanned aerial vehicles (UAVs) provided a diverse source of data for evaluation. Both the oat varieties (88.9%) and the foliar fertilization treatments (87.5%) were correctly classified and clearly separated with the discriminant analysis based on measured data. The Pearson correlation analysis showed a very strong positive connection (r = 0.895?1.00) between the NDVI values measured using a hand-held system and UAV-installed camera, except the third measurement time, where the correlation was weaker (r = 0.70). Our results indicate that field experiments can be effectively supported by UAVs.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
remote sensing
foliar fertilization
Megjelenés:Sustainability. - 14 : 6 (2022), p. 1-22. -
További szerzők:Bódi Erika (1989-) (geológus, geográfus) Nagy Attila (1982-) (környezetgazdálkodási agrármérnök) Fehér Zsolt Zoltán (1984-) (geoinformatika) Tamás András (1986-) (gazdasági agrármérnök, növénytermesztés és kertészeti tudományok) Virág István Csaba (1994-) (agrármérnök) Bojtor Csaba (1993-) (okleveles növényorvos) Forgács Fanni (1998-) agrármérnök Vad Attila (1981-) (agrármérnök) Kutasy Erika (1974-) (agrármérnök)
Pályázati támogatás:EFOP-3.6.1-16-2016-00022
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat


001-es BibID:BIBFORM099491
035-os BibID:(cikkazonosító)30 (Wos)000741110800001 (Scopus)85121522883
Első szerző:Kutasy Erika (agrármérnök)
Cím:Mitigating the Negative Effect of Drought Stress in Oat (Avena sativa L.) with Silicon and Sulphur Foliar Fertilization / Erika Kutasy, Erika Buday-Bódi, István Csaba Virág, Fanni Forgács, Anteneh Agezew Melash, László Zsombik, Attila Nagy, József Csajbók
Megjegyzések:A field experiment was carried out in the 2020-2021 growing season, aiming at investigating the abiotic stress tolerance of oat (Avena sativa L.) with silicon and sulphur foliar fertilization treatments and monitoring the effect of treatments on the physiology, production and stress tolerance of winter oat varieties. In the Hungarian national list of varieties, six winter oat varieties were registered in 2020, and all of the registered varieties were sown in a small plot field experiment in Debrecen, Hungary. The drought tolerance of the oat could be tested, because June was very dry in 2021; the rainfall that month totaled 6 mm only despite a 30-year average of 66.5 mm, and the average temperature for the month was 3.2 C higher than the 30-year average. Foliar application of silicon and sulphur fertilizers caused differences in the photosynthesis rate, total conductance to CO2, transpiration, water use efficiency, leaf area, chlorophyll content, carotenoid content, thousand kernel weight (TKW) and yield of winter oat. The application of silicon significantly increased the photosynthesis rate (16.8?149.3%), transpiration (5.4?5.6%), air?leaf temperature difference (16.2?43.2%), chlorophyll (1.0%) and carotenoid (2.5%) content. The yield increased by 10.2% (Si) and 8.0% (Si plus S), and the TKW by 3.3% (Si) and 5.0% (Si plus S), compared to the control plots. The plants in the control plots assimilated less CO2 while transpiring 1 m3 water more than in the Si, S or Si plus S fertilized plots. The effect of the silicon varied from 9.0 to 195.4% in water use efficiency (WUE) in the three development stages (BBCH52, BBCH65 and BBCH77). A lower leaf area index was measured in the foliar fertilized plots; even so, the yield was higher, compared to that from the control plots. Great variation was found in response to the foliar Si and S fertilization among winter oat varieties?in WUE, 2.0?43.1%; in total conductance to CO2, 4.9?37.3%; in leaf area, 1.6?34.1%. Despite the droughty weather of June, the winter oat varieties produced a high yield. The highest yield was in ♭GK Arany' (7015.7 kg ha??1), which was 23.8% more than the lowest yield (♭Mv Kincsem', 5665.6 kg ha-1). In the average of the treatments, the TKW increased from 23.9 to 33.9 g (41.8%). ♭Mv Hópehely' had the highest TKW. Our results provide information about the abiotic stress tolerance of winter oat, which, besides being a good model plant because of its drought resistance, is an important human food and animal feed.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
winter oat varieties
carotenoid content
water use efficiency
Megjelenés:Plants-Basel. - 11 : 1 (2022), p. 1-19. -
További szerzők:Bódi Erika (1989-) (geológus, geográfus) Virág István Csaba (1994-) (agrármérnök) Forgács Fanni (1998-) agrármérnök Melash, Anteneh Agezew (1993-) (Agrármérnök) Zsombik László (1976-) (agrármérnök) Nagy Attila (1982-) (környezetgazdálkodási agrármérnök) Csajbók József (1964-) (agrármérnök)
Pályázati támogatás:EFOP-3.6.1-16-2016-00022
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat
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