Year 2025, Volume 10, Issue 1

Year : 2025
Volume : 10
Issue : 1
   
Authors : Dimitrios BARTZIALIS, Ioannis NTAOUTIS, Ippolitos GINTSIOUDIS, Kyriakos D. GIANNOULIS, Nicholaos G. DANALATOS
Title : NITROGEN FERTILIZATION AND BIOSTIMULANTS EFFECT ON SAFFLOWER CROP
Abstract : Carthamus tinctorius species or safflower as it is referred to by its common name is a plant that grows and thrives in dry heat climates. Due to climate change and the medicinal properties of the plant, this study was prepared to draw conclusions on the response of the crop to nitrogen enrichment and to study the effects of the application of bio-stimulants on its seed yield in Thessaly, Greece. A split-plot experimental design was used with two different nitrogen fertilization levels being the major factor (N1: 0 and N2: 80 kg ha-1) and four different bio-stimulants as the sub-factor (C: control, A: Ascophyllum nodosum algae extract, S: plant amino acids, and A+S: a combination of previous two). The data analysis found no statistically significant difference between the study factors or their interactions on seed yield. Nitrogen fertilization (N2) almost doubled the seed yield, reaching up to 1.3 t ha-1, with a harvest index of 0.2. In the case of biostimulants, the S treatment resulted in a numerically higher yield (1.2 t ha-1), while interactions (N2xS) recorded a seed yield of 1.5 t ha-1. Finally, a statistically significant difference was found in biostimulants treatments when measuring seed oil content. In addition to providing the rural population with a crop that is resistant to climate change, the aforementioned results provide the foundation for future study into the yield of safflower in dry-thermal conditions that will generate positive results in the manufacturing of oil with medicinal characteristics.
Keywords : Safflower, Carthamus tinctorius, N-fertilization, biostimulant, yield.
   

 

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