Integrated Nutrient Management Boosts Inflorescence Biomass and Antioxidant Profile of Carlina diae (Asteraceae) – an Endangered Local Endemic Plant of Crete with Medicinal and Ornamental Value

Konstantinos Paschalidis; Dimitrios Fanourakis; Georgios Tsaniklidis; Ioannis Tsichlas; Vasileios A. Tzanakakis; Fotis Bilias; Eftihia Samara; Ioannis Ipsilantis; Katerina Grigoriadou; Theodora Matsi; Nikos Krigas; Georgios Tsoktouridis

doi:10.20944/preprints202401.0161.v1

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preprints.org > biology and life sciences > horticulture > doi: 10.20944/preprints202401.0161.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Integrated Nutrient Management Boosts Inflorescence Biomass and Antioxidant Profile of Carlina diae (Asteraceae) – an Endangered Local Endemic Plant of Crete with Medicinal and Ornamental Value

Konstantinos Paschalidis

Dimitrios Fanourakis

Georgios Tsaniklidis

Ioannis Tsichlas

Vasileios A. Tzanakakis

^* ,

Georgios Tsoktouridis

Version 1 : Received: 2 January 2024 / Approved: 3 January 2024 / Online: 3 January 2024 (09:44:23 CET)

A peer-reviewed article of this Preprint also exists.

Paschalidis, K.; Fanourakis, D.; Tsaniklidis, G.; Tsichlas, I.; Tzanakakis, V.A.; Bilias, F.; Samara, E.; Ipsilantis, I.; Grigoriadou, K.; Matsi, T.; Krigas, N.; Tsoktouridis, G. Integrated Nutrient Management Boosts Inflorescence Biomass and Antioxidant Profile of Carlina diae (Asteraceae)—An Endangered Local Endemic Plant of Crete with Medicinal and Ornamental Value. Agriculture 2024, 14, 259. Paschalidis, K.; Fanourakis, D.; Tsaniklidis, G.; Tsichlas, I.; Tzanakakis, V.A.; Bilias, F.; Samara, E.; Ipsilantis, I.; Grigoriadou, K.; Matsi, T.; Krigas, N.; Tsoktouridis, G. Integrated Nutrient Management Boosts Inflorescence Biomass and Antioxidant Profile of Carlina diae (Asteraceae)—An Endangered Local Endemic Plant of Crete with Medicinal and Ornamental Value. Agriculture 2024, 14, 259.

Abstract

Due to combined climate and biodiversity crisis, the sustainable utilization of phytogenetic resources stands as one-way alternative while nutrient management strategies gain an increasing role in agriculture. Building on previous studies regarding the Endangered local endemic of Crete (Greece) Carlina diae (Asteraceae) with medicinal and ornamental value, this investigation focused on its pilot cultivation and fertilization (foliar or root application). Foliar application included chemical fertilizer (conventional) or integrated nutrient management (INM). Root application consisted of chemical fertilizer, biostimulant, or INM with biostimulant. Above-ground biomass content of nutrients, together with leaf chlorophyll fluorescence and colour parameters (SPAD meter, DA meter, Chroma Meter) were determined. The leaf content of chlorophyll, three key antioxidant compounds and minerals’ titers were also assessed. The fertilization scheme did not influence plant growth and visually perceived quality (leaf color and shape). Notably, foliar INM fertilization increased biomass partitioning to inflorescences (harvestable organ for either medicinal or ornamental purposes), and decreased tissue water content (facilitating processing). Considering all three antioxidants together, INM with biostimulant appeared the optimum scheme, being associated with the highest (carotenoids, phenolics) or the second highest (flavonoid) content. In C. diae, therefore, INM fertilization was optimal for upgrading yield (foliar) and herbal quality in terms of antioxidant profile (INM with biostimulant), which might be embraced as an eco-friendly approach for high quality yields.

Keywords

INM; enhanced efficiency fertilizers; carotenoids; flavonoids; Greece; herbal quality; ornamental value; medicinal plant; phenols; biostimulant

Subject

Biology and Life Sciences, Horticulture

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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