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001-es BibID:BIBFORM104956
Első szerző:Demeter Cintia (agrármérnök, növénytermesztő)
Cím:Evaluation of NDVI, SPAD and nutritional values of sweet maize (Zea mays. L. convar. saccharata Koern) / Demeter Cintia, Bakos Zsuzsanna Éva, Zelenák Annabella, Nagy János
Megjegyzések:Due to the successful breeding and various innovative technological developments, the importance of sweet maize production and processing is growing on a global scale. Foods with high carotenoid content have positive effects on human health. Furthermore, research has shown that carotenoids in the human body can reduce the risk of developing age-related macular degeneration. Similarly to other researchers, Azami and Sun (2019) identified the antifibrotic, antioxidant, anti-inflammatory, antiapoptotic, antitumor, and chemopreventive properties of zeaxanthin. The experiments described in this paper were conducted at the Researcher Centre of the University of Debrecen. The super sweet maize Messenger (MES) was examined for its essential nutrient contents. In order to quantify carotenoid levels, the method of Moros et al. (2002) was used. Samples were dried at 50 ?C and stored at 24 ?C until processing to identify the various elements. Measurements were performed with ICAP 7000 spectrophotometer and the optimal one with no interference was selected, with the following spectral line overlap: Mg-285,213, P-177,495, Zn-213,856. Precision agriculture technologies were used during sowing, irrigation, fertilization, plant protection and harvesting. Sowing was performed on 22/05/2020 and harvesting was done on 17/08/2020. The amount of irrigation water was 88 mm and the applied fertilizer dose was 80 kg N, 21 kg CaO and 15 kg MgO per hectare. It was found that the measurement program described in this paper is able to provide complete information for the implementation of precision sweet maize production and production technology during the growing season. In addition, it is possible to determine the optimal sowing date. Furthermore, heat sum calculation can be used to monitor the development dynamics of maize, forecast silking, to identify critical events during the grain filling period based on precipitation and evaporation data, to plan possible interventions and to determine the optimal harvest time during ripening. During the content analyses of MES, high concentrations of phosphorus-, magnesium-, iron and zinc were observed (4455 mg/kg, 1530 mg/kg, 27 mg/kg and 27 mg/kg, respectively). As regards carotenoids, 9.57 mg/kg lutein, 8.93 mg/kg zeaxhantin, 0.725 mg/kg ?-criptoxantin and 0.185 mg/kg ?-carotin were measured, in addition to 2.45 mg/kg fructose, 2.6 mg/kg glucose and 3.675 mg/kg saccharose. Satisfactory and uniform NDVI values were associated with high yield quality. After the silking period, SPAD values showed close correlation with yield, which makes it possible to perform yield forecasting. During the growing season, the highest NDVI value (0.84) was measured before ripening, followed by a constant decrease.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok előadáskivonat
Megjelenés:Scientific Conference of PhD. Students of FAFR, FBFS and FHLE SUA in Nitra : Proceedings of Abstracts / eds. Monika Tóthová, Judita Lidiková, Kristína Candráková, Dominik Hollý. - p. 67-67. -
További szerzők:Bakos Zsuzsanna (1982-) Zelenák Annabella (1995-) (mezőgazdasági mérnök) Nagy János (1951-) (agrármérnök, mérnök-tanár)
Pályázati támogatás:TKP2020-IKA-04
Internet cím:DOI
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