Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 1
Written by Sorina NIȚU (NĂSTASE), Răzvan-Damian NIȚU, Emilia CONSTANTINESCU
Studies were carried out during the growing season of Primula officinalis Hill., to obtain information on the health status of the plants and the influence of the measurement date on NDVI values. The FIELDSCOUT® CM1000 NDVI Meter measures the NDVI differentially in the presence of light at 660 nm and 840 nm wavelengths. Three determinations in dynamics were made. Three plants were analysed for each variant/repeat/row, with each plant having three readings on three different leaves, resulting in a total of 729 readings and 243 plants analysed in each determination. The study of the influence of the measurement date on the NDVI values in leaves of Primula officinalis Hill. in 2018 shows a slight increase in the values measured on 03.05.2018 by 0.08 units, which is distinctly significant compared to the first measurement, considered as a control. The results on the interaction of the two factors on NDVI values in 2019 showed that on 20.05.2019 all planting variants had distinctly significant and highly significant values relative to the control.
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